CN110052260A - There is strontium titanates/carbon composite of three-dimensional interworking architecture based on bacteria cellulose synthesis - Google Patents
There is strontium titanates/carbon composite of three-dimensional interworking architecture based on bacteria cellulose synthesis Download PDFInfo
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- CN110052260A CN110052260A CN201910214469.8A CN201910214469A CN110052260A CN 110052260 A CN110052260 A CN 110052260A CN 201910214469 A CN201910214469 A CN 201910214469A CN 110052260 A CN110052260 A CN 110052260A
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- cbc
- srtio
- carbon fiber
- photochemical catalyst
- bacteria cellulose
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- 241000894006 Bacteria Species 0.000 title claims abstract description 16
- 229920002678 cellulose Polymers 0.000 title claims abstract description 16
- 239000001913 cellulose Substances 0.000 title claims abstract description 16
- 229910052712 strontium Inorganic materials 0.000 title claims description 9
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 title claims description 9
- 230000015572 biosynthetic process Effects 0.000 title claims description 5
- 238000003786 synthesis reaction Methods 0.000 title claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 3
- 229910052799 carbon Inorganic materials 0.000 title claims description 3
- 239000002131 composite material Substances 0.000 title description 4
- 229910002367 SrTiO Inorganic materials 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 4
- 239000004917 carbon fiber Substances 0.000 claims description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 24
- 239000003054 catalyst Substances 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- APQHKWPGGHMYKJ-UHFFFAOYSA-N Tributyltin oxide Chemical compound CCCC[Sn](CCCC)(CCCC)O[Sn](CCCC)(CCCC)CCCC APQHKWPGGHMYKJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012300 argon atmosphere Substances 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000000502 dialysis Methods 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims description 2
- 238000010189 synthetic method Methods 0.000 claims 6
- 239000002253 acid Substances 0.000 claims 1
- 235000015110 jellies Nutrition 0.000 claims 1
- 239000008274 jelly Substances 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000003763 carbonization Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 3
- 239000002028 Biomass Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012620 biological material Substances 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 229910002370 SrTiO3 Inorganic materials 0.000 description 12
- 230000001699 photocatalysis Effects 0.000 description 8
- 238000007146 photocatalysis Methods 0.000 description 7
- 239000004098 Tetracycline Substances 0.000 description 6
- 229960002180 tetracycline Drugs 0.000 description 6
- 229930101283 tetracycline Natural products 0.000 description 6
- 235000019364 tetracycline Nutrition 0.000 description 6
- 150000003522 tetracyclines Chemical class 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000035040 seed growth Effects 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OFVLGDICTFRJMM-WESIUVDSSA-N tetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3C[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O OFVLGDICTFRJMM-WESIUVDSSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
-
- B01J35/39—
-
- B01J35/60—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The present invention relates to one kind to be based on biomass bacteria cellulose material, and the three-dimensional open-framework to be interconnected using carrier inside after carbonization successfully realizes SrTiO on its surface3(STO) load of material, and intraskeletal 3D intercommunication skeleton framework is remained simultaneously.Comprising steps of the pretreatment of bacteria cellulose, the preparation of CBC material, the preparation of STO/CBC.The beneficial effects of the present invention are: retaining its three-dimensional structure using green bio material existing for nature by carbonization and having prepared 3D honeycomb STO/CBC material using the method for hydrothermal synthesis using simple ion-exchange reactions.The SrTiO so prepared3/ CBC has higher high activity for photocatalytic degradation, and has broad application prospects.
Description
Technical field
The invention belongs to nano material preparation and applied technical fields, are related to a kind of using carbon fiber skeleton as support site
Prepare SrTiO3The method of photochemical catalyst.
Background technique
Photocatalysis technology, which is increasingly becoming, curbs environmental pollution and one of the technology of most critical of energy shortage problem, and draws
The extensive research of domestic and international scientist is sent out.Many research work concentrate on high efficiency photocatalyst search and it is appropriately designed on,
Because directly carrying out drive response using solar radiation has proved to be a kind of science, effective and green method.
In the past few decades, serial of methods, especially semiconductor light-catalyst have been had attempted to, have it is low at
This, easy preparation and cyclical stability cause the interest of many people and have had a large amount of reports.Wherein, strontium titanates
(SrTiO3), as typical perovskite structure semiconductor, there is good photocatalytic activity, the light degradation of organic pollutant and
Water decomposition has good heat resistance, thermal stability and anti-light corrosion.On the other hand, morphology is that light-catalysed another is important
Factor, bigger serface can provide reaction site abundant to improve photocatalysis, the strontium titanate visible light catalyst of different-shape
It has been developed that, such as SrTiO3Nanoparticle and SrTiO3Nanotube.Porous structure can provide big specific surface for reaction
Product, and the shifting for electronics that photon generates has significant channel, is both conducive to improve photocatalysis performance.
Bacteria cellulose is the large biological molecule and nothing with the organized substance of multiple-length layer of structure, by self assembly
Machine combinations of nanoparticles forms, and there are many can pass through with the aitiogenic hydroxyl of metallics, carboxyl isoreactivity site on surface
Template mineralising and double ion exchange and seed growth are compound to realize.The material has supporting structure and multi-level hierarchical hole,
It is the ideal biological nano material that can be used as metallic carrier.Therefore compared to common anodised aluminium or using organic solvent as
For the method for co-reactant, using bacteria cellulose as carbon fiber template, not only can reduce cost and carbon fiber itself can
Facilitate light-catalyzed reaction as light induced electron channel, on the other hand, the self-supporting of carbon fiber can be effectively by SrTiO3
Metal becomes two-dimentional porous structure.
Biological nanocomposite foam has flexibility, globality and level porosity, it can be achieved that easily separation catalysis
Agent, rapid molecular transport and high reaction surface area, are very suitable to the extensive use from catalyst to the energy.With large biological molecule generation
The sustainability of advanced nanocomposite developing direction is shown for petroleum derivation polymer.Current work provides one kind
Multipurpose and sustainable strategy, for producing the biological composite wood with scaffolding structure, grade porosity, numerous compositions
Strand foam.Therefore, it is especially interesting for studying this nano material from one-dimensional to two-dimensional.
Summary of the invention
The technical problem to be solved by the present invention is based on the above issues, the present invention is provided using carbon fiber as template and is prepared
SrTiO3The method of photochemical catalyst, comprising the following steps:
Bacteria cellulose is pre-processed first, business bacteria cellulose (BC) the dispersion liquid dialysis a few days of purchase is removed it
His impurity, is then freeze-dried.Bacteria cellulose after drying is carried out to high temperature cabonization in argon atmosphere and is processed into carbon
Fiber (CBC).
After mixing, 20 ml strontium nitrate aqueous solutions are added, finally in the dehydrated alcohol of 25 ml and 3.4032 ml TBOT
The NaOH of 15 ml is added, reaction system is continued into stirring to reach and uniformly add the carbon fiber (CBC) pre-processed ultrasound
Dispersion.Finally, reaction system is transferred in the hydrothermal reaction kettle of 100 ml, certain time is kept at 200 DEG C, obtains strontium titanates
Final product (the SrTiO compound with carbon fiber3/ CBC).
In order to compare, we are also prepared for the SrTiO of not carbon fiber3Photochemical catalyst, synthesis process is not in addition to adding
Enter carbon fiber other parts with it is above-mentioned completely the same；
Further, the time dialysed in the step is 3 ~ 5 days；
Further, the time being freeze-dried in the step is the h of 12 h ~ 72；
Further, the concentration of strontium nitrate solution is 0.5 M in the step, and the concentration of NaOH is 5 M；
Further, the lasting mixing time after NaOH is added in the step is 1h or more.
Further, ultrasonic time is 1 h or more after carbon fiber is added in the step.
Further, the hydro-thermal time is 24 h in the step.
SrTiO3The application of/CBC photochemical catalyst is used for photocatalytic degradation tetracycline, carries out as steps described below:
Weigh 20 mg catalyst and be put into light and urge in pipe, 50 mL, 20 mg/L tetracycline is added, use 500 W mercury lamps as
Light source carries out photocatalytic degradation reaction.Dark reaction time is 60 min, and after illumination, every 10 min takes time sample, is centrifuged, into
And survey its absorbance.
The beneficial effects of the present invention are: the preparation method is relatively simple, preparation condition is easy to control, prepared photocatalysis
Agent uses the biological material of abundance, and utilizes the one-dimentional structure green of fiber itself, efficiently in CBC carrier surface
Prepare the SrTiO with three-dimensional intercommunication duct structure3Skeleton structure.The catalyst, have it is pollution-free, catalytic efficiency height etc. is excellent
Point has certain application value.
Detailed description of the invention
The following further describes the present invention with reference to the drawings.
Fig. 1,2 be the not carbon fiber-containing template that the embodiment of the present invention 1 is prepared pure strontium titanates (SrTiO3) photocatalysis
Agent, pure biomass carbon fiber (CBC) scanning electron microscope (SEM) photograph without STO loaded article；
Fig. 3,4 be the STO/CBC photochemical catalyst that the embodiment of the present invention 1 is prepared scanning electron microscope (SEM) photograph；
Fig. 5 be the embodiment of the present invention 1 be prepared based on carbon fiber skeleton SrTiO3The X-ray diffractogram of photochemical catalyst；
Fig. 6 be the embodiment of the present invention 1 be prepared based on carbon fiber skeleton SrTiO3The light degradation tetracycline of photochemical catalyst
Concentration is with light application time variation diagram.
Specific embodiment
Presently in connection with specific embodiment, the invention will be further described, following embodiment be intended to illustrate invention rather than
Limitation of the invention further.
Embodiment 1: first pre-processing bacteria cellulose, and business bacteria cellulose (BC) dispersion liquid of purchase is saturating
A few days removal other impurities are analysed, are then freeze-dried.Bacteria cellulose after drying is subjected to high temperature in argon atmosphere
Carbonization treatment is at carbon fiber (CBC).
After mixing, 20 mL strontium nitrate water are added in the dehydrated alcohol of 25 mL and 3.40 mL butyl titanates (TBOT)
Solution is eventually adding the NaOH of 15 mL, and reaction system is continued stirring to reach uniformly, adds the carbon fiber pre-processed
(CBC) ultrasonic disperse.Finally, reaction system is transferred in the hydrothermal reaction kettle of 100 mL, certain time is kept at 200 DEG C,
Obtain strontium titanates and the compound final product strontium titanates load C BC composite material (STO/CBC) of carbon fiber.
In order to compare, we are also prepared for the SrTiO of not carbon fiber-containing3Photochemical catalyst, synthesis process is not in addition to adding
Enter carbon fiber other parts with it is above-mentioned completely the same；
If the surface sweeping electron microscope of Fig. 1,2 are respectively the SrTiO of no carbon fiber template3Bacterial fibers after metal and carbonization treatment
Element, the SrTiO of present embodiment preparation3Knot block structure, the bacteria cellulose Ren Ranwei after carbonization is macroscopically presented in oxide
3D cross-linked structure, the presence for thus further demonstrating carbon fiber help to change the dispersion effect of titanate, be formed simultaneously rich
Rich pore structure, to reach the promotion to performance.
As Fig. 3,4 surface sweeping electron microscope (SEM) shown in, present embodiment preparation SrTiO3Metal is uniform on carbon fiber
Growth, and orderly cross-linked porous structure is formed under the supporting role of carbon fiber.
STO/CBC crystal phase structure prepared by embodiment 1 is by Rigaku D/max 2500PC rotation x-ray diffractometer
Analysis, wherein X-ray is Cu target K α (λ=1.54056), 40 kV of voltage, 100 mA of electric current, and step-length is 0.02 °, scanning range
5 °~80 °.X ray diffracting spectrum as shown in figure 5, carbon fiber does not show apparent characteristic peak, therefore STO/CBC,
SrTiO3Peak type it is almost the same, it is main it is to be shown be STO loaded article crystal characteristic peak.
For synthesized STO/CBC composite material, characteristic manner of the light-catalyzed reaction as its catalytic capability, tool are chosen
Body mode of operation is as follows:
Using the STO/CBC prepared in embodiment 1 as photocatalyst for degrading tetracycline (TC) solution, wherein tetracycline concentration
For 20 mg/L, takes 20 mg of three-dimensional S TO/CBC catalyst, first 60 min of dark reaction that solution is made to reach adsorption-desorption and balance, then into
The reaction of row ultraviolet catalytic extracts 3 mL reaction solutions in centrifuge tube every 10 min dropper using 500 W mercury lamps as light source
In, be put into supercentrifuge after being centrifuged 3 min, after with ultraviolet specrophotometer measure photocatalysis effect.As a result such as Fig. 6 institute
Show, for Cong Tuzhong this it appears that pure CBC is almost without catalytic capability, the catalyst after load has obvious increase compared to pure STO
Strong photocatalysis effect.
Claims (7)
1. a kind of SrTiO based on carbon fiber skeleton3The preparation method of photochemical catalyst:
Bacteria cellulose is pre-processed first, business bacteria cellulose (BC) the dispersion liquid dialysis a few days of purchase is removed it
His impurity, is then freeze-dried；Bacteria cellulose after drying is carried out to high temperature cabonization in argon atmosphere and is processed into carbon
After mixing, 20 ml strontium nitrate aqueous solutions are added, most in fiber (CBC), the dehydrated alcohol of 25 ml and 3.4032 ml TBOT
The NaOH of 15 ml is added afterwards, reaction system is continued into stirring to reach the carbon fiber (CBC) for uniformly adding and having pre-processed and surpass
Sound dispersion；Finally, reaction system is transferred in the hydrothermal reaction kettle of 100 ml, certain time is kept at 200 DEG C, obtains metatitanic acid
Strontium and the compound final product (SrTiO of carbon fiber3/ CBC)；In order to compare, we are also prepared for the SrTiO of not carbon fiber3Light
Catalyst, synthesis process in addition to do not have be added carbon fiber other parts with it is above-mentioned completely the same.
2. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: in the step thoroughly
The time of analysis is 3 ~ 5 days.
3. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: cold in the step
Jelly drying time is 12h ~ 72h.
4. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: nitre in the step
The concentration of sour strontium solution is 0.5 M, and the concentration of NaOH is 5 M.
5. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: adding in the step
Lasting mixing time after entering NaOH is 1h or more.
6. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: adding in the step
Ultrasonic time is 1h or more after entering carbon fiber.
7. SrTiO according to claim 13The synthetic method of/CBC photochemical catalyst, it is characterized in that: water in the step
The hot time is for 24 hours.
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| CN201910214469.8A CN110052260A (en) | 2019-03-20 | 2019-03-20 | There is strontium titanates/carbon composite of three-dimensional interworking architecture based on bacteria cellulose synthesis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910214469.8A CN110052260A (en) | 2019-03-20 | 2019-03-20 | There is strontium titanates/carbon composite of three-dimensional interworking architecture based on bacteria cellulose synthesis |
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Cited By (1)
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| CN111889073A (en) * | 2020-07-31 | 2020-11-06 | 西南科技大学 | Preparation method of defect-rich molybdenum disulfide-bacterial cellulose heterojunction material for treating radioactive wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111889073A (en) * | 2020-07-31 | 2020-11-06 | 西南科技大学 | Preparation method of defect-rich molybdenum disulfide-bacterial cellulose heterojunction material for treating radioactive wastewater |
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| US11707724B2 (en) * | 2020-07-31 | 2023-07-25 | Southwest University Of Science And Technology | Preparation method of bacterial cellulose-defective molybdenum disulfide heterojunction material for treating radioactive wastewater |
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