CN105032464A - Carbon nitride-nickel titanate composite material and preparation method and application thereof - Google Patents
Carbon nitride-nickel titanate composite material and preparation method and application thereof Download PDFInfo
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Abstract
The present invention discloses a carbon nitride-nickel titanate composite material and a preparation method and application thereof. The carbon nitride-nickel titanate composite material comprises carbon nitride and nickel titanate. Nickel titanate is deposited on the surface of carbon nitride to form the carbon nitride-nickel titanate composite material. The preparation method comprises the steps of: dissolving dicyandiamide in ethylene glycol to obtain an ethylene glycol solution containing dicyandiamide; adding nickel acetate and tetrabutyl titanate into the ethylene glycol solution containing dicyandiamide, carrying out a polymerization reaction to obtain reaction products; calcining the reaction products to obtain the carbon nitride-nickel titanate composite material . The composite material of the present invention has the advantages of high stability, high recyclability, high specific surface area and sites with high photocatalytic activity. The preparation method is simple, high in maneuverability and low in cost; and the composite material has superior photocatalytic properties, and can be widely used in the field of photocatalytic degradation of dye wastewater.
Description
Technical field
The invention belongs to the preparing technical field of composite, relate to a kind of Photocatalytic nano composite material and preparation method thereof and application, be specifically related to a kind of carbonitride-nickel titanate composite and preparation method thereof and application.
Background technology
In recent years, photocatalysis technology has been widely used in processing the inorganic and organic pollution in waste water.A lot of catalysis material is as metal oxide, and sulfide and nitride have obtained to be paid close attention to widely and study.In these photochemical catalysts, perovskite oxide has stable structure, shows good photocatalytic activity in photocatalysis field.Wherein, nickel titanate (NiTiO
3) belonging to the trigonal system of ilmenite structure, the band gap (2.18eV) be applicable to it and good sunshine response characteristic, have potential application prospect in photocatalysis field.But separately using nickel titanate as photochemical catalyst time, the band-gap energy narrower due to it and lower quantum efficiency and cause its photocatalytic activity not high.Therefore, by going to improve NiTiO with other Material cladding
3photocatalysis performance become very necessary.
Graphite phase carbon nitride (g-C
3n
4) be a kind of Novel non-metal polymer, there is stacked two-dimensional structure, less band gap (2.7eV) and the wide semiconductor light-catalyst of photoresponse scope.Therefore, g-C
3n
4can be used as the photocatalytic activity that a kind of effective co-catalyst improves semi-conducting material.
Up to now, g-C
3n
4/ NiTiO
3there is not been reported for the synthetic work of composite.Given this, develop and provide that a kind of preparation technology is simple, the g-C of function admirable
3n
4/ NiTiO
3composite is very important.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, there is provided that a kind of photocatalysis performance is excellent, stability strong, recycling property is high, there is the carbonitride-nickel titanate composite in high specific area and high photocatalytic activity site, additionally provide preparation method and this carbonitride-application of nickel titanate composite in degradation of dye waste water of carbonitride-nickel titanate composite that a kind of preparation technology is simple, operability is high, cost is low.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of carbonitride-nickel titanate composite, described carbonitride-nickel titanate composite comprises carbonitride and nickel titanate, and described nickel titanate is deposited on described carbonitride surface and forms carbonitride-nickel titanate composite.
Above-mentioned carbonitride-nickel titanate composite, preferably, the mass fraction of described carbonitride is 10% ~ 27.3%.
As same technical conceive of the present invention, present invention also offers the preparation method of a kind of carbonitride-nickel titanate composite, comprise the following steps:
(1) dicyandiamide is dissolved in ethylene glycol, obtains the ethylene glycol solution containing dicyandiamide;
(2) ethylene glycol solution containing dicyandiamide nickel acetate and butyl titanate being added step (1) gained carries out polymerisation and obtains product;
(3) calcining of the product of described step (2) gained is obtained carbonitride-nickel titanate composite.
Ethylene glycol (EG) is a bidentate ligand, can form the polymer of the metal glycolic of chain structure with metal ion.In the polymerization process of above-mentioned steps (2), nickel titanate, butyl titanate, ethylene glycol generates Ni-Ti-EG polymer.
Above-mentioned preparation method, preferably, the concentration containing dicyandiamide in the ethylene glycol solution of dicyandiamide described in described step (1) is 1.5g/L ~ 5g/L.
Above-mentioned preparation method, preferably, in described step (2), the mol ratio of described nickel acetate and butyl titanate is 1: 1.The mol ratio of nickel acetate and butyl titanate is excessive higher than 1: 1 nickel acetate, can bear oxidation of impurities nickel; The mol ratio of nickel acetate and butyl titanate is excessive lower than 1: 1 butyl titanate, can produce titanium dioxide.
Above-mentioned preparation method, preferably, described step (2) also comprises the post-processing step of product, is specially: after described product ethanol washing, be dry 6h ~ 12h under the environment of 40 DEG C ~ 60 DEG C in temperature.
Above-mentioned preparation method, preferably, in described step (2), in described calcination process, is warming up to 550 DEG C ~ 560 DEG C with the heating rate of 5 DEG C/min ~ 10 DEG C/min.
Above-mentioned preparation method, preferably, in described step (2), calcination time is 2h ~ 3h, and calcining heat is 550 DEG C ~ 560 DEG C.Easily there is heat loss higher than 600 DEG C of carbonitrides in calcining heat, calcining heat can affect the generation of nickel titanate lower than 550 DEG C, and therefore, preferred calcining heat is 550 DEG C ~ 560 DEG C.
As same technical conceive of the present invention, present invention also offers the application of the carbonitride-nitrobenzene of nickel titanate composite in degrading waste water that a kind of above-mentioned carbonitride-nickel titanate composite or above-mentioned preparation method prepare.
Above-mentioned application, preferably, comprise the following steps: described carbonitride-nickel titanate composite and ethanol are added in waste water, carry out light-catalyzed reaction under visible light, complete the degraded to organic pollution, the addition of described carbonitride-nickel titanate composite is 0.3g/L ~ 0.6g/L, and the addition of described ethanol is 2v/v% ~ 5v/v%.
Above-mentioned application, preferably, to add to described carbonitride-nickel titanate composite in waste water and to stir under lucifuge condition.
Above-mentioned application, preferably, the light source of described visible ray is the xenon lamp of 300W ~ 500W.
Above-mentioned application, preferably, the liquid level distance of described xenon lamp and described waste water is 14cm ~ 16cm.
Above-mentioned application, preferably, the time of described light-catalyzed reaction is 60min ~ 120min.
Above-mentioned application, preferably, the concentration of described Nitrobenzene in Wastewater is 20mg/L ~ 40mg/L.
Compared with prior art, the invention has the advantages that:
1, the invention provides a kind of carbonitride-nickel titanate composite, stability is strong, recycling property is high, there is high specific area and high photocatalytic activity, high-specific surface area can provide more avtive spot for adsorption fouling thing, contribute to photocatalysis, therefore, carbonitride of the present invention-nickel titanate composite has potential application at photocatalysis degradation of pollutants in waste water; And with the NiTiO of one-dimentional structure
3nanometer rods as matrix, the advantages such as compared to zero dimension, 2 and 3 dimensional organization, it has, and transmission electronic speed is fast, light absorption is strong, intensity greatly, is not easily reunited and adsorption area is large.
2, the invention provides the preparation method of a kind of carbonitride-nickel titanate composite, the method utilizing ethylene glycol medium route to combine calcining prepares carbonitride-nickel titanate composite, ethylene glycol is a bidentate ligand, can form the polymer of the metal glycolic of chain structure with metal ion; The present invention is under the effect at ethylene glycol, and nickel titanate, butyl titanate, ethylene glycol generates Ni-Ti-EG polymer, and Ni-Ti-EG polymer obtains carbonitride-nickel titanate composite after calcining.Preparation method's technique of the present invention is simple, and its easy control of reaction conditions, method of operating are simple and with low cost.
3, carbonitride of the present invention-nickel titanate composite has good photocatalysis performance under visible light, light degradation waste water from dyestuff field can be widely used in, be specially adapted to light degradation nitrobenzene dye waste water, there is the advantages such as technique is simple, simple operation, excellent catalytic effect.
Accompanying drawing explanation
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
Fig. 1 is g-C
3n
4, NiTiO
3and the XRD diffracting spectrum that carbonitride-nickel titanate composite in the embodiment of the present invention 1 is corresponding.
Fig. 2 is g-C
3n
4, NiTiO
3and the SEM figure that carbonitride-nickel titanate composite in the embodiment of the present invention 1 is corresponding.
Fig. 3 is g-C
3n
4, NiTiO
3and the UV-Vis DRS abosrption spectrogram that carbonitride-nickel titanate composite in the embodiment of the present invention 1 ~ 3 is corresponding.
Fig. 4 is the degradation principles figure of the nitrobenzene in the carbonitride-nickel titanate composite wastewater by photocatalysis in the present invention.
Fig. 5 is g-C
3n
4, NiTiO
3and nitrobenzene in carbonitride-nickel titanate composite wastewater by photocatalysis in the embodiment of the present invention 1 corresponding time m-degradation efficiency graph of a relation.
Fig. 6 be the nitrobenzene in the carbonitride-nickel titanate composite wastewater by photocatalysis in the embodiment of the present invention 1 ~ 3 corresponding time m-degradation efficiency graph of a relation.
Fig. 7 is the photocatalysis performance curve of the carbonitride-nickel titanate composite circular response five times in the embodiment of the present invention 1.
Detailed description of the invention
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
Embodiment
The material adopted in following examples and instrument are commercially available.
embodiment 1:
A kind of carbonitride of the present invention-nickel titanate composite, comprises carbonitride and nickel titanate, and wherein carbonitride is block, and nickel titanate is that bar-shaped, bar-shaped nickel titanate is deposited on block carbonitride surface, and wherein the mass fraction of carbonitride is 18.4%.
Respectively to g-C
3n
4, NiTiO
3and the carbonitride of the present embodiment-nickel titanate composite (g-C
3n
4/ NiTiO
3) specific area detect, by the measurement of BET, g-C
3n
4, NiTiO
3and the carbonitride of the present embodiment-nickel titanate composite (g-C
3n
4/ NiTiO
3) specific area be respectively 10.238m
2g
1, 57.138m
2g
1, 61.284m
2g
1, visible g-C
3n
4/ NiTiO
3the specific area of material is larger than two monomers; High-specific surface area can provide more avtive spot for adsorption fouling thing, and this contributes to photocatalysis, and therefore, carbonitride of the present invention-nickel titanate composite has high photocatalytic activity.
A preparation method for the carbonitride-nickel titanate composite of above-mentioned the present embodiment, comprises the following steps:
(1) take the stirring of 300mg dicyandiamide to be dissolved in 100ml ethylene glycol solution, obtain the ethylene glycol solution containing dicyandiamide;
(2) 2.48g nickel acetate and 3.4mL butyl titanate are added step (1) gained containing dicyandiamide ethylene glycol solution in, constantly stir, after solution is by green change basket, Keep agitation 2h is to guarantee to react completely again, then centrifugal, outwell supernatant, obtain product;
(3) adopt ethanol to carry out washing to step (2) gained product centrifugal, obtain blue precursor condensation product, blue precursor condensation product is placed in drying box and obtains precursor with 60 DEG C of vacuum drying 6h;
(4) precursor of step (3) gained is put into Muffle furnace, be warming up to 550 DEG C with the heating rate of 5 DEG C/min and start calcining, calcination time is 2h, calcine rear cooling naturally, product is taken out, with mortar grinder to Powdered, obtains carbonitride-nickel titanate composite.
Fig. 1 is g-C
3n
4, NiTiO
3and the carbonitride of the present embodiment-nickel titanate composite (g-C
3n
4/ NiTiO
3-18.4%) corresponding XRD diffracting spectrum.As can be seen from the figure, simple g-C
3n
4there is obvious diffraction maximum at 27.4 ° of places, it corresponds to g-C
3n
4characteristic diffraction peak (100).To NiTiO in figure
3spectral line carries out analysis and draws, is about 24.1 ° in the angle of diffraction, 33.1 °, 35.7 °, 40.9 °, 49.5 °, 54.0 °, 62.5 ° and 64.0 ° of places, exist (012), (104), (110), (113), (024), (116), the peak of (214) and (300), NiTiO
3diffraction maximum correspond to card (JCPDSno.33-0960).And g-C
3n
4/ NiTiO
3xRD diffracting spectrum present g-C
3n
4and NiTiO
3all characteristic diffraction peaks.
Fig. 2 is g-C
3n
4, NiTiO
3and the carbonitride of the present embodiment-nickel titanate composite (-C
3n
4/ NiTiO
3-18.4%) corresponding SEM figure.Wherein (a) figure is g-C
3n
4, (b) figure is NiTiO
3, (c) figure and (d) figure is the carbonitride-nickel titanate composite of the present embodiment.As can be seen from (a) figure, g-C
3n
4in irregular bulk, as can be seen from (b) figure, NiTiO
3in not of uniform size bar-shaped, the bar-shaped NiTiO of part can be found out from (c) figure and (d) figure
3be deposited on block g-C
3n
4surface, part then appears at block g-C
3n
4block and block between gap in.
embodiment 2:
A kind of carbonitride of the present invention-nickel titanate composite, comprises carbonitride and nickel titanate, and wherein carbonitride is block, and nickel titanate is that bar-shaped, bar-shaped nickel titanate is deposited on block carbonitride surface, and wherein the mass fraction of carbonitride is 10%.
A preparation method for the carbonitride-nickel titanate composite of above-mentioned the present embodiment, be only that in step (1), dicyandiamide consumption is 150mg with the difference of the preparation method of embodiment 1, all the other steps are all identical.
embodiment 3:
A kind of carbonitride of the present invention-nickel titanate composite, comprises carbonitride and nickel titanate, and wherein carbonitride is block, and nickel titanate is that bar-shaped, bar-shaped nickel titanate is deposited on block carbonitride surface, and wherein the mass fraction of carbonitride is 27.3%.
A preparation method for the carbonitride-nickel titanate composite of above-mentioned the present embodiment, distinguish with the preparation method of embodiment 1 and be only that in step (1), dicyandiamide consumption is 500mg, all the other steps are all identical.
Respectively to g-C
3n
4, NiTiO
3and the carbonitride of embodiment 1 ~ 3-nickel titanate composite carries out the detection of UV-Vis DRS absorption spectrum, Fig. 3 is g-C
3n
4, NiTiO
3and the UV-Vis DRS abosrption spectrogram that the carbonitride of embodiment 1 ~ 3-nickel titanate composite is corresponding.As can be seen from the figure g-C
3n
4and NiTiO
3very strong light absorption is had in ultraviolet and visibility region.Carbonitride-the light absorption of nickel titanate composite in the visible region all comparatively NiTiO of embodiment 1 ~ 3
3strengthen to some extent in the light absorption in this region.
embodiment 4:
A kind of carbonitride-nickel titanate composite of embodiment 1 and g-C
3n
4, NiTiO
3the Contrast on effect of the nitrobenzene in degrading waste water, comprises the following steps:
(1) prepare each 100ml of nitrobenzene solution that 3 groups of (group 1, group 2 and group 3) concentration are 20mg/L, and respectively add 2mL ethanol, the solution of preparation is put in shady place.
(2) g-C is taken
3n
4, NiTiO
3with the carbonitride-each 0.04g of nickel titanate composite of embodiment 1, by the g-C taken
3n
4join in the nitrobenzene solution of group 1, NiTiO
3join in the nitrobenzene solution of group 2, carbonitride-nickel titanate composite joins in the nitrobenzene solution of group 3, and all in the dark magnetic agitation reaches adsorption equilibrium in one hour.Often organize each taking-up 4ml solution and represent initial liquid to be degraded, solution when namely the reaction time is 0min, survey its concentration with UV, visible light spectrophotometer, and be designated as C
0.
(3) 3 groups of remaining solution in step (2) are carried out light-catalyzed reaction and start timing under the xenon lamp of visible light source 300W irradiates, light source and liquid level distance are 15cm.
(4) every 20min each absorption 4ml solution in the reaction system often organized, under 7000 turns after centrifugal 5min, Aspirate supernatant, surveys dyestuff residual concentration in supernatant with UV, visible light spectrophotometer.After illumination reaction 120min, close xenon lamp.
Fig. 4 is the degradation principles figure of the nitrobenzene in the carbonitride-nickel titanate composite wastewater by photocatalysis in the present invention.Wherein, e
-represent electronics, h
+represent hole, H
+represent reduction hydrogen ion.As shown in the figure, when illumination is penetrated in g-C
3n
4/ NiTiO
3after composite, g-C
3n
4in electron excitation transit to conduction band (CB), due to g-C
3n
4conduction band positions compare NiTiO
3conduction band positions more negative, g-C
3n
4electronics on conduction band will transfer to NiTiO
3conduction band leaves hole.Meanwhile, the hole of generation is from NiTiO
3valence band (VB) transfers to g-C
3n
4valence band.Meanwhile, ethanol consumes hole, produces reduction hydrogen ion and acetaldehyde, so those nitrobenzene being adsorbed on photocatalyst surface of attack make it degrade by light induced electron and hydrogen ion.
Fig. 5 is g-C
3n
4, NiTiO
3and nitrobenzene in carbonitride-nickel titanate composite wastewater by photocatalysis in the embodiment of the present invention 1 corresponding time m-degradation efficiency graph of a relation.The residual concentration of the nitrobenzene wherein after C representative degraded, C
0represent nitrobenzene initial concentration.With C/C
0for ordinate, take light application time as abscissa, g-C
3n
4, NiTiO
3and photocatalysis performance curve such as Fig. 5 of carbonitride-nickel titanate composite in the embodiment of the present invention 1 shows.As seen from the figure, after radiation of visible light 120min, g-C
3n
4p-nitrophenyl degradation efficiency is only 56%, NiTiO
3p-nitrophenyl degradation efficiency is only 62%, and the carbonitride-nickel titanate composite p-nitrophenyl degradation efficiency in the embodiment of the present invention 1 reaches 80%, apparently higher than the degradation rate of monomer p-nitrophenyl.This shows, carbonitride of the present invention-nickel titanate composite has very strong photocatalytic activity.
embodiment 5:
Carbonitride-the application of nickel titanate composite in nitrobenzene waste water process of embodiment 1 ~ 3, comprises the following steps:
(1) get the waste water from dyestuff of 3 groups of (group 1, group 2 and group 3) nitrobenzene-containings and ethanol, often in group, the concentration of nitrobenzene is 20mg/L, and the addition of ethanol is 2v/v%.Be carbonitride-nickel titanate composite that 0.4g/L adds embodiment 1 in the waste water from dyestuff of group 1 according to consumption, being carbonitride-nickel titanate composite that 0.4g/L adds embodiment 2 in the waste water from dyestuff of group 2 according to consumption, is carbonitride-nickel titanate composite that 0.4g/L adds embodiment 3 in the waste water from dyestuff of group 3 according to consumption.G-C in embodiment 1 ~ 3
3n
4mass percentage be about 18.4%, 10% and 27.3% respectively, number consecutively is g-C
3n
4/ NiTiO
3-18.4%, g-C
3n
4/ NiTiO
3-10%, g-C
3n
4/ NiTiO
3-27.3%.
(2) reaction system often organized (being added with the waste water of the nitrobenzene-containing of carbonitride-nickel titanate composite) is placed on magnetic stirring apparatus, lucifuge stirs 1h, carbonitride-nickel titanate composite and pollutant waste water is made to reach adsorption equilibrium, 4ml solution is taken out respectively to represent each group of initial liquid to be degraded from 3 groups, namely the solution when reaction time is 0min, survey its concentration with UV, visible light spectrophotometer, and be designated as C
0.
(3) 3 groups of remaining solution in step (2) are carried out light-catalyzed reaction and start timing under the xenon lamp of visible light source 300W irradiates, light source and liquid level distance are 15cm.Every 20min each absorption 4ml solution in the reaction system often organized, under 7000 turns after centrifugal 5min, Aspirate supernatant, surveys dyestuff residual concentration in supernatant with UV, visible light spectrophotometer.After illumination reaction 120min, close xenon lamp.
Fig. 6 is that the carbonitride-nickel titanate composite of the embodiment of the present invention 1 ~ 3 reduces the performance curve of nitrobenzene under visible light.The concentration of the nitrobenzene wherein after C representative degraded, C
0represent nitrobenzene initial concentration.With C/C
0for ordinate, take light application time as abscissa.As seen from the figure, along with g-C
3n
4proportion in carbonitride-nickel titanate composite is started from scratch and is increased gradually, and carbonitride-nickel titanate composite p-nitrophenyl degradation efficiency strengthens thereupon, works as g-C
3n
4proportion when being increased to 22%, carbonitride-nickel titanate composite p-nitrophenyl degradation efficiency reaches maximum 80%.And work as g-C
3n
4when proportion continues to increase, carbonitride-nickel titanate composite p-nitrophenyl degradation efficiency reduces gradually.Carbonitride-nickel titanate composite (the g-C of embodiment 2
3n
4/ NiTiO
3-10%), the carbonitride-nickel titanate composite (g-C of embodiment 1
3n
4/ NiTiO
3-18.4%) and the carbonitride of embodiment 3-nickel titanate composite (g-C
3n
4/ NiTiO
3-27.3%) p-nitrophenyl degradation efficiency is respectively 76%, 80% and 67%.Can be found out by this figure, the carbonitride-nickel titanate composite (g-C of embodiment 1
3n
4/ NiTiO
3-18.4%) photocatalytic degradation effect of p-nitrophenyl is best.
embodiment 6:
The corrosion resistance of carbonitride of the present invention-nickel titanate composite in Photocatalytic Degradation Process and a stability study, comprise the following steps:
(1) take the carbonitride-nickel titanate composite of 40mg embodiment 1, be added in the waste water of 100ml nitrobenzene-containing, nitro phenenyl concentration is 20mg/L, and adds the absolute ethyl alcohol of 2mL.
(2) reaction system (being added with the waste water of the nitrobenzene-containing of carbonitride-nickel titanate composite) is placed on magnetic stirring apparatus, lucifuge stirs 1h to reach adsorption equilibrium, therefrom take out 4ml solution and represent initial liquid to be degraded, namely the solution when reaction time is 0min, survey its concentration with UV, visible light spectrophotometer, and be designated as C
0.
(3) step (2) remaining solution carried out light-catalyzed reaction under the xenon lamp of visible light source 300W and start timing, light source and liquid level distance are 15cm.In reaction system, get 4ml solution centrifugal every 20min to be separated, survey nitrobenzene residual concentration in supernatant with UV, visible light spectrophotometer, be designated as C.After illumination reaction 120min, close xenon lamp.
(4) reacted for step (3) solution centrifugal is separated, surveys pollutant residual concentration in supernatant with UV, visible light spectrophotometer and calculate degradation efficiency.Outwell supernatant, collect reacted carbonitride-nickel titanate composite, and again to join 100ml nitro phenenyl concentration be in the waste water of 20mg/L.
(5) continue to repeat step (2) ~ (4) four times.
Fig. 7 is the photocatalysis performance curve of the carbonitride-nickel titanate composite circular response five times of the embodiment of the present invention 1.With nitrobenzene degradation efficiency for ordinate, take cycle-index as abscissa, as seen from the figure, after five circulations, carbonitride-nickel titanate composite still shows efficient photocatalysis performance, and the degradation efficiency of five circulations is followed successively by 80%, 79.3%, 78.6%, 77.8% and 77.3%.Illustrate that carbonitride-nickel titanate composite is a kind of stablizing and efficient NEW TYPE OF COMPOSITE photochemical catalyst thus, there is good actual application prospect.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.All technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It is noted that for those skilled in the art, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. carbonitride-nickel titanate composite, is characterized in that, described carbonitride-nickel titanate composite comprises carbonitride and nickel titanate, and described nickel titanate is deposited on described carbonitride surface and forms carbonitride-nickel titanate composite.
2. carbonitride according to claim 1-nickel titanate composite, is characterized in that, the mass fraction of described carbonitride is 10% ~ 27.3%.
3. a preparation method for the carbonitride described in claim 1 or 2-nickel titanate composite, is characterized in that, comprise the following steps:
(1) dicyandiamide is dissolved in ethylene glycol, obtains the ethylene glycol solution containing dicyandiamide;
(2) ethylene glycol solution containing dicyandiamide nickel acetate and butyl titanate being added step (1) gained carries out polymerisation and obtains product;
(3) calcining of the product of described step (2) gained is obtained carbonitride-nickel titanate composite.
4. preparation method according to claim 3, is characterized in that, the concentration containing dicyandiamide in the ethylene glycol solution of dicyandiamide described in described step (1) is 1.5g/L ~ 5g/L.
5. preparation method according to claim 3, is characterized in that, in described step (2), the mol ratio of described nickel acetate and butyl titanate is 1: 1.
6. the preparation method according to any one of claim 3 ~ 5, it is characterized in that, described step (2) also comprises the post-processing step of product, is specially: after described product ethanol washing, be dry 6h ~ 12h under the environment of 40 DEG C ~ 60 DEG C in temperature.
7. the preparation method according to any one of claim 3 ~ 5, is characterized in that, in described step (3), the heating rate of described calcining is 5 DEG C/and min ~ 10 DEG C/min, calcining heat is 550 DEG C ~ 560 DEG C, and calcination time is 2h ~ 3h.
8. the application of the carbonitride-nitrobenzene of nickel titanate composite in degrading waste water for preparing of carbonitride as claimed in claim 1 or 2-nickel titanate composite or the preparation method according to any one of claim 3 ~ 7.
9. application according to claim 8, it is characterized in that, comprise the following steps: described carbonitride-nickel titanate composite and ethanol are added in waste water, carry out light-catalyzed reaction under visible light, complete the degraded to organic pollution, the addition of described carbonitride-nickel titanate composite is 0.3g/L ~ 0.6g/L, and the addition of described ethanol is 2v/v% ~ 5v/v%.
10. application according to claim 9, is characterized in that, to be added to by described carbonitride-nickel titanate composite in waste water and stir under lucifuge condition; The light source of described visible ray is the xenon lamp of 300W ~ 500W, and the liquid level distance of described xenon lamp and described waste water is 14cm ~ 16cm, and the time of described light-catalyzed reaction is 60min ~ 120min; The concentration of described Nitrobenzene in Wastewater is 20mg/L ~ 40mg/L.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731552A (en) * | 2016-02-01 | 2016-07-06 | 浙江大学 | Talc-titanic acid nickel nanocomposite and preparing method thereof |
| CN106450255A (en) * | 2016-11-05 | 2017-02-22 | 中南大学 | NiTiO3/C cathode material of sodium-ion battery, preparation and application |
| CN106732711A (en) * | 2016-11-23 | 2017-05-31 | 贵州医科大学 | A kind of carbonitride and cadmium ferrite composite photocatalyst material and preparation method thereof |
| CN106902828A (en) * | 2017-03-14 | 2017-06-30 | 沃邦环保有限公司 | A kind of processing method of acetyl spiramycin antibiotic waste water |
| CN107029725A (en) * | 2017-03-14 | 2017-08-11 | 沃邦环保有限公司 | Carbon quantum dot nickel titanate compound degradation agent of degraded antibiotic and preparation method thereof |
| CN108615904A (en) * | 2018-04-13 | 2018-10-02 | 广东石油化工学院 | A kind of cobalt acid nickel hollow ball/carbonitride quantum dot composite material and its preparation method and application |
| CN111359650A (en) * | 2020-04-24 | 2020-07-03 | 浙江大学宁波理工学院 | Preparation method, product and application of iron, nickel and palladium co-doped graphite-phase carbon nitride composite catalyst |
| WO2021169029A1 (en) * | 2020-02-27 | 2021-09-02 | 江苏大学 | Near-infrared responsive photosensitizer ligand as well as preparation method and use thereof |
| CN113368881A (en) * | 2021-05-12 | 2021-09-10 | 中国地质大学（北京） | Preparation method and application of g-C3N4/BaTiO3 composite material |
| CN114042471A (en) * | 2021-12-03 | 2022-02-15 | 辽宁大学 | Visible light response type Zn2TiO4/g-C3N4Heterojunction material and application thereof |
| CN115475647A (en) * | 2022-10-09 | 2022-12-16 | 陕西师范大学 | Method for in-situ construction of monoatomic Ti-grafted carbon nitride photocatalyst and catalytic reduction of nitroarene |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731552A (en) * | 2016-02-01 | 2016-07-06 | 浙江大学 | Talc-titanic acid nickel nanocomposite and preparing method thereof |
| CN106450255A (en) * | 2016-11-05 | 2017-02-22 | 中南大学 | NiTiO3/C cathode material of sodium-ion battery, preparation and application |
| CN106732711B (en) * | 2016-11-23 | 2019-07-05 | 贵州医科大学 | A kind of carbonitride and cadmium ferrite composite photocatalyst material and preparation method thereof |
| CN106732711A (en) * | 2016-11-23 | 2017-05-31 | 贵州医科大学 | A kind of carbonitride and cadmium ferrite composite photocatalyst material and preparation method thereof |
| CN106902828B (en) * | 2017-03-14 | 2019-11-19 | 沃邦环保有限公司 | A kind of processing method of acetyl spiramycin antibiotic waste water |
| CN107029725A (en) * | 2017-03-14 | 2017-08-11 | 沃邦环保有限公司 | Carbon quantum dot nickel titanate compound degradation agent of degraded antibiotic and preparation method thereof |
| CN107029725B (en) * | 2017-03-14 | 2019-11-19 | 沃邦环保有限公司 | Carbon quantum dot-nickel titanate compound degradation agent and preparation method thereof of degradation antibiotic |
| CN106902828A (en) * | 2017-03-14 | 2017-06-30 | 沃邦环保有限公司 | A kind of processing method of acetyl spiramycin antibiotic waste water |
| CN108615904A (en) * | 2018-04-13 | 2018-10-02 | 广东石油化工学院 | A kind of cobalt acid nickel hollow ball/carbonitride quantum dot composite material and its preparation method and application |
| WO2021169029A1 (en) * | 2020-02-27 | 2021-09-02 | 江苏大学 | Near-infrared responsive photosensitizer ligand as well as preparation method and use thereof |
| CN111359650A (en) * | 2020-04-24 | 2020-07-03 | 浙江大学宁波理工学院 | Preparation method, product and application of iron, nickel and palladium co-doped graphite-phase carbon nitride composite catalyst |
| CN111359650B (en) * | 2020-04-24 | 2022-09-20 | 浙江大学宁波理工学院 | Preparation method, product and application of iron, nickel and palladium co-doped graphite-phase carbon nitride composite catalyst |
| CN113368881A (en) * | 2021-05-12 | 2021-09-10 | 中国地质大学（北京） | Preparation method and application of g-C3N4/BaTiO3 composite material |
| CN114042471A (en) * | 2021-12-03 | 2022-02-15 | 辽宁大学 | Visible light response type Zn2TiO4/g-C3N4Heterojunction material and application thereof |
| CN114042471B (en) * | 2021-12-03 | 2022-08-30 | 辽宁大学 | Visible light response type Zn 2 TiO 4 /g-C 3 N 4 Heterojunction material and application thereof |
| CN115475647A (en) * | 2022-10-09 | 2022-12-16 | 陕西师范大学 | Method for in-situ construction of monoatomic Ti-grafted carbon nitride photocatalyst and catalytic reduction of nitroarene |
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