CN104190445A - Visible-light catalytic activity BiOBr-based heterojunction and preparation method thereof - Google Patents

Visible-light catalytic activity BiOBr-based heterojunction and preparation method thereof Download PDF

Info

Publication number
CN104190445A
CN104190445A CN201410406451.5A CN201410406451A CN104190445A CN 104190445 A CN104190445 A CN 104190445A CN 201410406451 A CN201410406451 A CN 201410406451A CN 104190445 A CN104190445 A CN 104190445A
Authority
CN
China
Prior art keywords
biobr
ionic liquid
preparation
burning
based heterojunction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410406451.5A
Other languages
Chinese (zh)
Other versions
CN104190445B (en
Inventor
李发堂
王庆
王晓静
郝影娟
刘瑞红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei University of Science and Technology
Original Assignee
Hebei University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei University of Science and Technology filed Critical Hebei University of Science and Technology
Priority to CN201410406451.5A priority Critical patent/CN104190445B/en
Publication of CN104190445A publication Critical patent/CN104190445A/en
Application granted granted Critical
Publication of CN104190445B publication Critical patent/CN104190445B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a visible-light catalytic activity BiOBr-based heterojunction material which is prepared from BiOBr and Bi24O31Br10 at a mass ratio of (28%-100%):(0%-72%). A preparation method of the BiOBr-based heterojunction material comprises the following steps: (1) mixing bismuth nitrate, urea, and one or more than one of tetramethyl ammonium bromide, tetraethyl ammonium bromide, 2-bromoethylamine hydrobromide and 3-bromopropylamine hydrobromide at a mass ratio of 1:(0.1-1.0):(0.1-1.0) to obtain a mixture, and heating the mixture until melting so as to obtain an ionic liquid; (2) heating the ionic liquid obtained in the step (1) until burning; and (3) collecting a solid generated after complete burning in the step (2), and cooling and grinding the solid to obtain the BiOBr-based heterojunction material. The preparation method is simple without requiring complicated equipment, and is short in time, high in yield, low in cost and suitable for industrial large-batched production.

Description

BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof
Technical field
The present invention relates to a kind of synthetic method of BiOBr base heterojunction nano material of visible light catalysis activity, belong to the synthetic field of material.
Background technology
Along with being on the rise and the growing tension of the energy of environmental pollution, can utilize the photocatalysis technology of sunshine to show wide application prospect in fields such as efficient degradation organic pollution, photolysis water hydrogen, solar cells.The exploitation of high efficiency photocatalyst is to determine the whether feasible key factor of photocatalysis technology.Nano-TiO 2since 1972 are in the news, the advantage such as, good stability efficient, nontoxic with it, low cost and obtained broad research and application.But, conventional Detitanium-ore-type TiO 2energy gap wider (3.2 eV), can only absorb the ultraviolet light below λ <387 nm, this part light only accounts for 3%～5% in sunshine, therefore the visible ray that accounts for sunshine 43% left and right energy cannot be utilized, and makes TiO 2application under sunshine is restricted.Although the methods such as ion doping (Chen et al. Chemical Reviews, 107 (2007) 2891 – 2959), noble metal loading (Fuku et al. Chemistry-An Asian Journal 7 (2012) 1366 – 1371), semiconductor compound (Li et al. Journal of Hazardous Materials 239 – 240 (2012) 118 – 127) are used to modification TiO 2, but also exist visible light activity to improve the problems such as limited, preparation process is complicated.
BiOX (X=F, Cl, Br, I) is novel photochemical catalyst, and its unique layer structure is conducive to the separation in light induced electron-hole.The people such as Zhang (Applied Catalysis B:Environmental 68 (2006) 125 – 129) report BiOCl has than P25 TiO 2the ability of higher photo-catalytic degradation of methyl-orange.But (3.19 – 3.60 eV) are also wider for the energy gap of BiOCl, and the energy gap of BiOBr is 2.9eV left and right, can more effectively absorb visible ray, but the electron-hole recombinations efficiency of single BiOBr is high, and activity awaits further raising.In addition, bromine oxygen bi series compound, except common BiOBr, also has other variforms, as Bi 3o 4br, Bi 24o 31br 10, Bi 4o 5br 2deng, it is reported, narrower (the Xiao et al. Journal of Materials Chemistry 22 of bromine oxygen bismuth energy gap of these rich oxygen types (therefore 2012) 22840 – 22843), if utilize the bromine oxygen bismuth and the synthetic heterojunction material of BiOBr of these low energy gap width, not only can utilize the layer structure raising quantum efficiency of bromine oxygen bismuth compound, can also effectively utilize visible ray.As bibliographical information a kind of BiOBr/Bi 24o 31br 10hetero-junctions (Liu et al. Journal of Colloid and Interface Science, 2014, DOI:10.1016/j.jcis.2014.06.020), wherein containing 47.4%BiOBr and 52.6% Bi 24o 31br 10hetero-junctions show the highest catalytic activity, be respectively pure BiOBr and Bi 24o 31br 102.6 and 4.8 times.But owing to utilizing hydro-thermal method synthetic, required time is long and be difficult for suitability for industrialized production.
Solution combustion is synthetic is a kind of fast and convenient synthetic method, and the applicant's invention disclosed patent (CN201410009579.8), utilizes the method to synthesize BiOCl/Bi 24o 31cl 10hetero-junctions, can control the two ratio by fuel metering amount.But only has Bi in above-mentioned patent 24o 31cl 10have visible light activity, BiOCl energy gap wider (3.2eV), can only absorb ultraviolet light, therefore only plays and shifts Bi 24o 31cl 10the effect of light induced electron, so this hetero-junctions catalytic activity still awaits further raising.
Summary of the invention
The BiOBr base heterojunction that the object of this invention is to provide a kind of visible light catalysis activity.
The present invention also aims to provide a kind of preparation method of BiOBr base heterojunction of visible light catalysis activity.
The object of the present invention is achieved like this.A BiOBr base heterojunction for visible light catalysis activity, by BiOBr and Bi 24o 31br 10form, two component mass ratioes are (28%～100%) ︰ (0%～72%).
Experiment confirms, as BiOBr and Bi 24o 31br 10mass fraction while being respectively 74.6% and 25.4%, show best visible light catalysis activity.
Its preparation method comprises the following steps:
(1) by bismuth nitrate and urea, according to amount of substance ratio, be that 1 ︰ (mix by the ratio of 0.2～1.0) ︰ (0.3～2.0) with one or more the mixture in 4 bromide, tetraethylammonium bromide, 2-bromine ethylamine hydrobromide, 3-propantheline bromide hydrobromide, be heated to fusing, obtain ionic liquid;
(2) step (1) gained ionic liquid is continued to be heated to burning;
(3) solid producing after collection step (2) burning completely, cooling, grinding, obtains by BiOBr and Bi 24o 31br 10the hetero-junctions forming.
The present invention prepares BiOBr base heterojunction and adopts solion auto-combustion method, and bismuth nitrate is mixed and add thermosetting solion with bromine salt, has overcome in other combustion methods and has needed to add water to form the defect of solution.In the present invention, bromine salt not only makes it to form ionic liquid for bismuth nitrate provides bromide ion and its coordination, simultaneously also as fuel, at high temperature with bismuth nitrate generation redox reaction, generates BiOBr, Bi 24o 31br 10, nitrogen or nitrogen oxide and carbon dioxide etc., kind and addition by regulation and control bromine salt can change BiOBr and Bi 24o 31br 10ratio.
BiOBr base heterojunction material prepared by the present invention, because its energy gap is different, valence band is different with conduction band position, and the light induced electron of the two can be effectively separated with hole, thereby improve quantum efficiency and photocatalytic activity.
The beneficial effect that the present invention obtains is: 1. burning is what within the extremely short time, to occur, and nano heterojunction material formed in moment, made BiOBr and Bi 24o 31br 10more contact point be can form, the transfer of electronics and the raising of catalytic activity are conducive to; 2. BiOBr and Bi 24o 31br 10ratio can be by regulating kind and the addition of bromine salt control; 3. without complex device, preparation process is simple, and required time is short, within a few minutes, can form, and productive rate can reach 100%, and cost is low, is suitable for industrial mass manufacture.
Accompanying drawing explanation
Fig. 1 is pure BiOBr and the BiOBr/Bi of embodiment 1～example 7 preparations 24o 31br 10the X-ray diffraction of hetero-junctions (XRD) collection of illustrative plates.
Fig. 2 is pure BiOBr and the BiOBr/Bi of embodiment 1～example 7 preparations 24o 31br 10the UV-Vis DRS of hetero-junctions (UV-Vis DRS) collection of illustrative plates.
Fig. 3 is field emission scanning electron microscope (FESEM) collection of illustrative plates of the BiOBr of embodiment 1 preparation.
Fig. 4 is pure BiOBr and the BiOBr/Bi of embodiment 1～example 7 preparations 24o 31br 10hetero-junctions and commodity P25 TiO 2photo-catalytic degradation of methyl-orange time graph.
The specific embodiment
Following examples are used for illustrating the present invention.
Embodiment 1
According to following step, prepare pure BiOBr:
1. 0.01 mol bismuth nitrate is mixed with 0.008 mol 2-bromine ethylamine hydrobromide, 0.005mol 4 bromide and 0.003mol urea, be heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample A.
Sample A is carried out respectively to XRD, UV-Vis DRS and SEM test, and test collection of illustrative plates respectively as shown in Figure 1 to Figure 3.Fig. 1 XRD collection of illustrative plates shows that this powder is pure BiOBr.As can be seen from Figure 2, pure BiOBr prepared by the present embodiment has absorption at visible region, utilizes α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.76eV.The visible synthetic BiOBr of Fig. 3 presents sheet.
Prepared pure BiOBr is carried out to visible light catalysis activity test: the sample A that adds 0.1 g the present embodiment to prepare in the high concentration methyl orange solution of 50 mg/L of 100 mL, the 350 W xenon lamps of take are visible light source, with 400 nm optical filters, filter the light of λ <400 nm, methyl orange rate utilizes spectrophotometer to carry out absorption rate testing at 464 nm places.As shown in Figure 4, after irradiation 150 min, the percent of decolourization of methyl orange is 25.2% to result.P25 TiO in contrast 2without signs of degradation, prove that it does not absorb and do not occur optical sensibilization for visible ray.
Embodiment 2
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.0060 mol 2-bromine ethylamine hydrobromide, 0.001mol tetraethylammonium bromide and 0.005mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample B.
Sample B is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates, respectively referring to Fig. 1 and Fig. 2, utilizes its peak intensity of Fig. 1 and BiOBr and Bi 24o 31br 10rIR value can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 91.8% and 8.2%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.51 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 63.1%.
Embodiment 3
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.0060 mol 2-bromine ethylamine hydrobromide and 0.008mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample C.
Sample C is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates, respectively referring to Fig. 1 and Fig. 2, utilizes its peak intensity of Fig. 1 and BiOBr and Bi 24o 31br 10rIR value can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 85.2% and 14.8%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.53 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 80.4%.
Embodiment 4
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.0045 mol 2-bromine ethylamine hydrobromide, 0.001mol 3-propantheline bromide hydrobromide and 0.01mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample D.
Sample D is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates is respectively referring to Fig. 1 and Fig. 2, and Fig. 1 can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 75.4% and 14.6%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.50 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 87.2%.
Embodiment 5
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.0045 mol 2-bromine ethylamine hydrobromide and 0.01mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample E.
Sample E is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates is respectively referring to Fig. 1 and Fig. 2, and Fig. 1 can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 70.4% and 29.6%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.48 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 65.2%.
Embodiment 6
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.0035 mol 2-bromine ethylamine hydrobromide and 0.015mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample E.
Sample E is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates is respectively referring to Fig. 1 and Fig. 2, and Fig. 1 can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 48.4% and 52.6%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.52 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 61.1%.
Embodiment 7
According to following step, prepare BiOBr/Bi 24o 31br 10hetero-junctions:
1. 0.01 mol bismuth nitrate and 0.002 mol 2-bromine ethylamine hydrobromide and 0.02mol urea are mixed and heated to fusing, form ionic liquid;
2. the ionic liquid of heating steps described in 1. on electric furnace, to ionic liquid burning, burning produces a large amount of smog, and emits a large amount of heats;
3. collect the solid producing after 2. step burns completely, cooling and grinding, obtains powder, is designated as sample E.
Sample E is carried out to XRD and UV-Vis DRS test, and its collection of illustrative plates is respectively referring to Fig. 1 and Fig. 2, and Fig. 1 can be calculated BiOBr and Bi 24o 31br 10mass fraction be respectively 27.8% and 72.2%.By Fig. 2, utilized α(h ν)=a (h ν-E g) 2formula calculates its energy gap and is about 2.55 eV.
According to the method for embodiment 1, carry out visible light catalysis activity test, result shows: after irradiation 150 min, the percent of decolourization of methyl orange is 56.7%.

Claims (3)

1. a BiOBr base heterojunction for visible light catalysis activity, by BiOBr and Bi 24o 31br 10form, in it is characterized in that forming, two component mass ratioes are (28%～100%) ︰ (0%～72%).
2. BiOBr base heterojunction according to claim 1, is characterized in that BiOBr and Bi in composition 24o 31br 10mass fraction be respectively 74.6% and 25.4%.
3. a preparation method for the BiOB base heterojunction of visible light catalysis activity, is characterized in that comprising the following steps:
(1) by bismuth nitrate, according to amount of substance ratio, be that 1 ︰ (mix by the ratio of 0.2～1.0) ︰ (0.3～2.0) with one or more mixtures in 4 bromide, tetraethylammonium bromide, 2-bromine ethylamine hydrobromide, 3-propantheline bromide hydrobromide with urea, be heated to fusing, obtain ionic liquid;
(2) the resulting ionic liquid of step (1) is continued to be heated to burning;
(3) collect the solid producing after step (2) burning completely, through supercooling, grinding, obtain BiOBr base heterojunction.
CN201410406451.5A 2014-08-19 2014-08-19 BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof Active CN104190445B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410406451.5A CN104190445B (en) 2014-08-19 2014-08-19 BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410406451.5A CN104190445B (en) 2014-08-19 2014-08-19 BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof

Publications (2)

Publication Number Publication Date
CN104190445A true CN104190445A (en) 2014-12-10
CN104190445B CN104190445B (en) 2016-04-20

Family

ID=52075894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410406451.5A Active CN104190445B (en) 2014-08-19 2014-08-19 BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104190445B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722317A (en) * 2015-01-14 2015-06-24 安徽师范大学 Bi12O17Br2-Bi24O31Br10 heterojunction photocatalyst and preparation method thereof
CN104841460A (en) * 2015-05-29 2015-08-19 广西大学 Method for preparing magnetic BiOBr with ultraviolet-visible light response
CN104998665A (en) * 2015-07-09 2015-10-28 三峡大学 Preparation method and application of BiVO4-BiOBr photocatalyst
CN105148950A (en) * 2015-09-30 2015-12-16 南京大学 Preparing method for flower-shaped BiOI microspheres
CN106925304A (en) * 2017-04-19 2017-07-07 宁德师范学院 Bi24O31Br10/ ZnO composite visible light catalysts and preparation method thereof
CN108568303A (en) * 2018-04-10 2018-09-25 青岛农业大学 A kind of TiO2/Bi24O31Br10The preparation method of/BiOBr composite photocatalyst materials
CN111254461A (en) * 2020-01-19 2020-06-09 安徽大学 Tungsten oxide/bismuth oxyiodide heterojunction material for photo-reduction of carbon dioxide and preparation method and application thereof
CN111362303A (en) * 2020-04-09 2020-07-03 中国矿业大学 Hollow porous microspheric BiOCl photocatalytic material assembled by nanocrystals and preparation method thereof
CN111482187A (en) * 2020-04-15 2020-08-04 重庆科技学院 Preparation method of bismuth-rich composite photocatalyst for treating oilfield flowback fluid
CN113578394A (en) * 2021-09-09 2021-11-02 南京大学 Inorganic/organic double-heterojunction visible light catalytic composite material and preparation method and application thereof
CN114225894A (en) * 2021-12-27 2022-03-25 河北科技大学 Oxygen vacancy-rich alumina-based heterojunction material and preparation method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186336A (en) * 2007-12-05 2008-05-28 北京航空航天大学 Method for preparing layer thickness homogenized bismuth oxyhalide
CN101850263A (en) * 2010-06-17 2010-10-06 江西理工大学 Ag doped BiOBr catalytic material and preparation method and application thereof
CN101993043A (en) * 2010-10-28 2011-03-30 徐建 Visible light photocatalyst of BiOBr micro sphere and preparation method thereof
CN102068998A (en) * 2011-01-14 2011-05-25 太原理工大学 Preparation and application methods of BiOBr/BiOCl compound photocatalyst
CN102220637A (en) * 2011-05-31 2011-10-19 国家纳米科学中心 Micron/nanometer hierarchical structure of BiOCl, BiOBr and Bi2S3
CN102634366A (en) * 2012-05-07 2012-08-15 东北石油大学 Method for denitrifying oil product by using BiOBr photocatalyst
CN102671679A (en) * 2012-06-08 2012-09-19 上海师范大学 BiOI/BiOBr multilevel structure composite visible light catalyst, and preparation method and application thereof
CN103007967A (en) * 2012-12-05 2013-04-03 上海师范大学 BiOBr visible light catalytic thin film as well as preparation method and use thereof
CN103708424A (en) * 2013-12-18 2014-04-09 江苏大学 Preparation method of {001} crystal surface-exposed BioBr square nanosheet
CN103785426A (en) * 2014-01-09 2014-05-14 河北科技大学 BiOCl base heterojunction with visible-light catalytic activity and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186336A (en) * 2007-12-05 2008-05-28 北京航空航天大学 Method for preparing layer thickness homogenized bismuth oxyhalide
CN101850263A (en) * 2010-06-17 2010-10-06 江西理工大学 Ag doped BiOBr catalytic material and preparation method and application thereof
CN101993043A (en) * 2010-10-28 2011-03-30 徐建 Visible light photocatalyst of BiOBr micro sphere and preparation method thereof
CN102068998A (en) * 2011-01-14 2011-05-25 太原理工大学 Preparation and application methods of BiOBr/BiOCl compound photocatalyst
CN102220637A (en) * 2011-05-31 2011-10-19 国家纳米科学中心 Micron/nanometer hierarchical structure of BiOCl, BiOBr and Bi2S3
CN102634366A (en) * 2012-05-07 2012-08-15 东北石油大学 Method for denitrifying oil product by using BiOBr photocatalyst
CN102671679A (en) * 2012-06-08 2012-09-19 上海师范大学 BiOI/BiOBr multilevel structure composite visible light catalyst, and preparation method and application thereof
CN103007967A (en) * 2012-12-05 2013-04-03 上海师范大学 BiOBr visible light catalytic thin film as well as preparation method and use thereof
CN103708424A (en) * 2013-12-18 2014-04-09 江苏大学 Preparation method of {001} crystal surface-exposed BioBr square nanosheet
CN103785426A (en) * 2014-01-09 2014-05-14 河北科技大学 BiOCl base heterojunction with visible-light catalytic activity and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ZHANGSHENG LIU,ET AL.: ""One-pot synthesis of Bismuth Oxyhalide_Oxygen-rich bismuth oxyhalide Heterojunction and its photocatalytic activity"", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》 *
ZHANGSHENG LIU,ET AL.: ""One-pot synthesis of Bismuth Oxyhalide_Oxygen-rich bismuth oxyhalide Heterojunction and its photocatalytic activity"", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》, vol. 431, 18 June 2014 (2014-06-18), pages 187 - 193, XP029042895, DOI: doi:10.1016/j.jcis.2014.06.020 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722317A (en) * 2015-01-14 2015-06-24 安徽师范大学 Bi12O17Br2-Bi24O31Br10 heterojunction photocatalyst and preparation method thereof
CN104722317B (en) * 2015-01-14 2017-04-12 安徽师范大学 Bi12O17Br2-Bi24O31Br10 heterojunction photocatalyst and preparation method thereof
CN104841460A (en) * 2015-05-29 2015-08-19 广西大学 Method for preparing magnetic BiOBr with ultraviolet-visible light response
CN104998665A (en) * 2015-07-09 2015-10-28 三峡大学 Preparation method and application of BiVO4-BiOBr photocatalyst
CN105148950A (en) * 2015-09-30 2015-12-16 南京大学 Preparing method for flower-shaped BiOI microspheres
CN106925304B (en) * 2017-04-19 2020-07-03 宁德师范学院 Bi24O31Br10/ZnO composite visible light catalyst and preparation method thereof
CN106925304A (en) * 2017-04-19 2017-07-07 宁德师范学院 Bi24O31Br10/ ZnO composite visible light catalysts and preparation method thereof
CN108568303A (en) * 2018-04-10 2018-09-25 青岛农业大学 A kind of TiO2/Bi24O31Br10The preparation method of/BiOBr composite photocatalyst materials
CN111254461A (en) * 2020-01-19 2020-06-09 安徽大学 Tungsten oxide/bismuth oxyiodide heterojunction material for photo-reduction of carbon dioxide and preparation method and application thereof
CN111254461B (en) * 2020-01-19 2021-08-27 安徽大学 Tungsten oxide/bismuth oxyiodide heterojunction material for photo-reduction of carbon dioxide and preparation method and application thereof
CN111362303A (en) * 2020-04-09 2020-07-03 中国矿业大学 Hollow porous microspheric BiOCl photocatalytic material assembled by nanocrystals and preparation method thereof
CN111482187A (en) * 2020-04-15 2020-08-04 重庆科技学院 Preparation method of bismuth-rich composite photocatalyst for treating oilfield flowback fluid
CN111482187B (en) * 2020-04-15 2022-08-12 重庆科技学院 Preparation method of bismuth-rich composite photocatalyst for treating oilfield flowback fluid
CN113578394A (en) * 2021-09-09 2021-11-02 南京大学 Inorganic/organic double-heterojunction visible light catalytic composite material and preparation method and application thereof
CN114225894A (en) * 2021-12-27 2022-03-25 河北科技大学 Oxygen vacancy-rich alumina-based heterojunction material and preparation method thereof
CN114225894B (en) * 2021-12-27 2022-11-29 河北科技大学 Oxygen vacancy-rich aluminum oxide base heterojunction material and preparation method thereof
JP7427270B2 (en) 2021-12-27 2024-02-05 河北科技大学 Alumina-based heterojunction material rich in oxygen vacancies and its preparation method

Also Published As

Publication number Publication date
CN104190445B (en) 2016-04-20

Similar Documents

Publication Publication Date Title
CN104190445B (en) BiOBr base heterojunction of a kind of visible light catalysis activity and preparation method thereof
Zhao et al. CeO2/3D g-C3N4 heterojunction deposited with Pt cocatalyst for enhanced photocatalytic CO2 reduction
Li et al. In2O3-modified Three-dimensional nanoflower MoSx form S-scheme heterojunction for efficient hydrogen production
Yang et al. One-step low-temperature synthesis of 0D CeO2 quantum dots/2D BiOX (X= Cl, Br) nanoplates heterojunctions for highly boosting photo-oxidation and reduction ability
Liang et al. Fabrication and characterization of BiOBr: Yb3+, Er3+/g-C3N4 pn junction photocatalysts with enhanced visible-NIR-light-driven photoactivities
Sun et al. Hierarchical heterostructures of p-type bismuth oxychloride nanosheets on n-type zinc ferrite electrospun nanofibers with enhanced visible-light photocatalytic activities and magnetic separation properties
Wang et al. In situ fabrication of AgI/AgVO 3 nanoribbon composites with enhanced visible photocatalytic activity for redox reactions
Nagabhushana et al. Synthesis of bismuth vanadate: its application in H 2 evolution and sunlight-driven photodegradation
Wang et al. Z-scheme LaCoO3/g-C3N4 for efficient full-spectrum light-simulated solar photocatalytic hydrogen generation
Li et al. In situ reorganization of Bi3O4Br nanosheet on the Bi24O31Br10 ribbon structure for superior visible-light photocatalytic capability
CN102580739B (en) Graphene/silver molybdenum oxide compound visible-light catalyst and preparation method thereof
Wang et al. Z-scheme photocatalytic NO removal on a 2D/2D iodine doped BiOIO3/g-C3N4 under visible-light irradiation
Zhu et al. Insight into the influence of morphology of Bi2WO6 for photocatalytic degradation of VOCs under visible light
Ruan et al. Effectively enhanced photodegradation of Bisphenol A by in-situ g-C3N4-Zn/Bi2WO6 heterojunctions and mechanism study
Chen et al. Visible-light-driven photocatalysis of carbon dioxide and organic pollutants by MFeO2 (M= Li, Na, or K)
Jiang et al. Preparation of magnetically retrievable flower-like AgBr/BiOBr/NiFe2O4 direct Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity
Liu et al. Fabrication of Bi2O2 (OH) NO3/g-C3N4 nanocomposites for efficient CO2 photocatalytic reduction
Paramanik et al. Stupendous photocatalytic activity of p-BiOI/n-PbTiO3 heterojunction: the significant role of oxygen vacancies and interface coupling
Liu et al. A direct Z-scheme Bi 2 WO 6/NH 2-UiO-66 nanocomposite as an efficient visible-light-driven photocatalyst for NO removal
Xin et al. Synthesis of ZnS@ CdS–Te composites with p–n heterostructures for enhanced photocatalytic hydrogen production by microwave-assisted hydrothermal method
CN109395761B (en) Nitrogen-doped BiOIO3Preparation method and application of photocatalyst
CN103785426B (en) BiOCl base heterojunction of a kind of visible light catalysis activity and preparation method thereof
Jiang et al. Solvent-induced fabrication of Cu/MnOx nanosheets with abundant oxygen vacancies for efficient and long-lasting photothermal catalytic degradation of humid toluene vapor
Mao et al. High performance hydrogen production of MoS 2-modified perovskite LaNiO 3 under visible light
CN102671676A (en) Preparation method for SnO2/SnS2 heterostructure photocatalyst

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant