原位合成可见光响应TiO<sub>2</sub>/SnS<sub>2</sub>及其光催化还原水中Cr(Ⅵ)的性质研究

李靖; 唐辉; 黄铭涛; 王晓辉; 段芳; 王绍荣

doi:10.13568/j.cnki.651094.2017.03.006

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原位合成可见光响应TiO₂/SnS₂及其光催化还原水中Cr(Ⅵ)的性质研究

数理科学 | 更新时间：2026-01-21

- 原位合成可见光响应TiO₂/SnS₂及其光催化还原水中Cr(Ⅵ)的性质研究
- 原位合成可见光响应TiO₂/SnS₂及其光催化还原水中Cr(Ⅵ)的性质研究
- 新疆大学学报（自然科学版中英文） 2017年34卷第3期页码：287-293
- 作者机构：
  
  1. 徐州工程学院化学化工学院
  2. 中国矿业大学化工学院
  3. 江南大学化学与材料工程学院
- 作者简介：
- 基金信息：
  
  江苏省科技厅科技支撑项目(BE2015041);苏北高校对口支援项目(2016);徐州工程学院重点培育项目(XKY2014103);徐州市科技创新专项项目(KC16SG246)
- DOI：10.13568/j.cnki.651094.2017.03.006
  中图分类号： O643.36;X703
- 纸质出版：2017
- 稿件说明：
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[1]李靖,唐辉,黄铭涛,等.原位合成可见光响应TiO_2/SnS_2及其光催化还原水中Cr(Ⅵ)的性质研究[J],2017,34(03):287-293.
[1]李靖,唐辉,黄铭涛,等.原位合成可见光响应TiO_2/SnS_2及其光催化还原水中Cr(Ⅵ)的性质研究[J],2017,34(03):287-293. DOI： 10.13568/j.cnki.651094.2017.03.006.

DOI：10.13568/j.cnki.651094.2017.03.006.

摘要

本文以钛酸四丁酯、四氯化锡和硫代乙酰胺为原料

在无水乙醇-水-冰醋酸的混合溶剂中得到可见光响应TiO2/SnS2纳米复合材料

采用XRD、TEM、HRTEM、XPS和UV-vis等测试手段表征了产品的结构、组成和光学性质;以可见光(λ>420 nm)为光源、K2Cr2O7水溶液为模型污染物

考察了所制产品和物理混合法所制的具有相同组成的PM-TiO2/SnS2的光催化活性.实验结果表明:得到了可见光响应的表面分散型TiO2/SnS2纳米复合材料具有比SnS2纳米片、TiO2纳米晶和PM-TiO2/SnS2纳米粉更高的可见光催化活性和良好的光催化稳定性;TiO2和SnS2具有匹配的能带结构

形成的表面分散型的异质结界面利于光生载流子有效分离和转移是ISTiO2/SnS2具有良好催化性能的重要因素.

Abstract

TiO2 nanocrystals-covered SnS2 nanoplates were synthesized via a simple and cost-effective insitu one-step solvothermal method

using Sn Cl4·5H_2O

thioacetamide and tetrabutyl titanate as the reactants and ethanol-water-acetic acid solution as the solvent. The compositions

structures and optical properties of the as-synthesized TiO2/SnS2 composites were characterized by X-ray diffraction

transmission electron microscopy

high resolution transmission electron microscopy

X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectra. It was observed that the as-synthesized TiO2/SnS_2nano-heterojunctions not only demonstrated much higher efficiency than SnS2 nanoplates

TiO2 nanocrystals and physical mixture of SnS2 nanoplates and TiO2 nanocrystals in photocatalytic reduction of aqueous Cr(VI) under visible light(λ > 420 nm) irradiation

but also had high photocatalytic stability. The greatly improved photocatalytic performance of the as-synthesized IS-TiO2/SnS_2nano-heterojunctions was mainly attributed to the efficient charge transfer and separation at the heterojunction interfaces between closely contacted SnS2 nanoplates and TiO2 nanocrystals

as well as the matching band potentials of SnS2 and TiO2.

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references

熊道陵,李金辉,李英.废铬资源再利用技术[M].北京:冶金工业出版社,2012:17-27.

STEVEN N F,ALLEN J B.Heterogeneous photocatalytic oxidation of cyanide and sulfite in aqueous solutions at semiconductor powders[J].Journal of Physical Chemistry,1977,81:1484-1488.

HIROSHI,Y,YUKIYASU Y,HIDEO T.Heterogeneous photocatalytic recuction of dichromate on n-type semiconductor catalysts[J].Nature,1979,282:817-818.

赖康荣,孙毅,崔秀花,等.铋基半导体光催化材料的研究进展[J].新疆大学学报(自然科学版),2013,30(4):431-438.

LUKAS S M,JACEK K S.Photocatalytic Reduction of CO2on Ti O2and Other Semiconductors[J].Angewante Chemie International Edition,2013,22(52):7372-7408.

HUANG H W,Ou H L,Feng J W,et al.Achieving highly promoted visible-light sensitive photocatalytic activity on Bi OIO3via facile iodine doping[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2017,518:158-165.

蔡万玲.超声化学法制备纳米WO3及其光催化氧化性能研究[J].《新疆师范大学学报》(自然科学版),2016,29(2):72-75.

WU L S,LI B,HONG X,et al.One-pot synthesis of Cd S nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient potocatalytic hydrogen evolution[J].2015,127(4):1226-1230.

MEICHTRY J M,COLBEAU-JUSTIN C,CUSTO G,et al.Ti O2-photocatalytic transformation of Cr(VI)in the presence of EDTA:comparison of different commercial photocatalysts and studies by time resolved microwave conductivity[J].Applied Catalysis B,2014,144:189-195.

CHENG H F,HUANG B B,DAI Y,et al.Visible-light photocatalytic activity of the metastable Bi20Ti O32synthesized by a high-temperature quenching method[J].Journal of Solid State Chemistry,2009,182(8):2274-2278.

AHMAD M,HONG Z L,AHMED E,et al.Effect of fuel to oxidant molar ratio on the photocatalytic activity of Zn O nanopowders[J].Ceramics International,2013,39(3):3007-3015.

WU Xiao,Li K W,Wang H.Facile synthesis of Zn S nanostructured spheres and their photocatalytic properties[J].Journal of Alloys and Compounds,2009,487(1-2):537-544.

LU G,ZOU X J,Wang F,et al.Facile fabrication of Ce VO4microspheres with efficient visible-light photocatalytic activity[J].Materials Letters,2017,195:168-171.

CHU H P,LEI W Y,LIU X J,et al.Synergetic effect of Ti O2as co-catalyst for enhanced visible light photocatalytic reduction of Cr(VI)on Mo Se2[J].Applied Catalysis A:General,2016,521:19-25.

ZHANG Y C,YANG M,ZHANG M,et al.HNO3-involved one-step low temperature solvothermal synthesis of N-doped Ti O2nanocrystals for efcient photocatalytic reduction of Cr(VI)in water[J].Applied Catalysis B,2013,142-143:249-258.

SUN H,DONG B H,SU G,et al.Modification of Ti O2nanotubes by WO3species for improving their photocatalytic activity[J].Materials Chemistry and Physics,2016,182:200-207.

JIANG D,YU H,YU H B.Modified g-C3N4/Ti O2nanosheets/Zn O ternary facet coupled heterojunction for photocatalytic degradation of p-toluenesulfonic acid(p-TSA)under visible light[J].Physica E,2017,85:1-6.

LI X Y,LI X Y,LUO Q Z,et al.Effect of conditions for preparation of cyclized polyacrylonitrile sensitized Ti O2nanoparticles on visible-light photocatalysis and photo absorbance property[J].Environmental progess&sustainable energy,2015,34(1):32-38.

WANG N,ZHU L H,DENG K J,et al.Visible light photocatalytic reduction of Cr(VI)on Ti O2in situ modified with small molecular weight organic acids[J].Applied Catalysis B,2010,95:400-407.

YANG C,WANG W,SHAN Z,et al.Preparation and photocatalytic activity of high-efficiency visible-light-responsive photocatalyst Sn Sx/Ti O2[J].Journal of Solid State Chemistry,2009,182:807-812.

ZHANG Y C,LI J,XU H Y.One-step in situ solvothermal synthesis of Sn S2/Ti O2nanocomposites with high performance in visible light-driven photocatalytic reduction of aqueous Cr(VI)[J].Applied Catalysis B:Environmental,2012,123-124:18-26.

LI J,WANG T X,DU X H.Preparation of visible light-driven Sn S2/Ti O2nanocomposite photocatalyst for the reduction of aqueous Cr(VI)[J].Separation and Purification Technology,2012,101:11-17.

WANG N,XU Y,ZHU L,et al.Tang,H.Reconsideration to the deactivation of Ti O2catalyst during simultaneous photocatalytic reduction of Cr(VI)and oxidation of salicylic acid[J].Journal of Photochemistry and Photobiology A:Chemistry,2009,201:121-127.

YANG Q,TANG K,WANG C,et al.The Synthesis of Sn S2Nanoflakes from Tetrabutyltin Precursor[J].Journal of Solid State Chemistry,2002,164:106-109.

MA D,ZHOU H,ZHANG J,et al.Controlled synthesis and possible formation mechanism of leaf-shaped Sn S2nanocrystals[J].Materials Chemistry and Physics,2008,111:391-395.

AO C H,LEUNG M K H,LAM R C W,et al.Photocatalytic decolorization of anthraquinonic dye by Ti O2thin film under UVA and visible-light irradiation[J].Chemical Engineering journal,2007,129:153-159.

WU N,WEI H,ZHANG L.Efficient removal of heavy metal ions with biopolymer template synthesized mesoporous titania beads of hundreds of micrometers size[J].Environmental Science&Technology,2012,46:419-425.

WANG N,XU Y,ZHU L,et al.Reconsideration to the deactivation of Ti O2catalyst during simultaneous photocatalytic reduction of Cr(VI)and oxidation of salicylic acid[J].Journal of Photochemistry and Photobiology A:Chemisty,2009,201:121-127.

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原位合成可见光响应TiO2/SnS2及其光催化还原水中Cr(Ⅵ)的性质研究

原位合成可见光响应TiO2/SnS2及其光催化还原水中Cr(Ⅵ)的性质研究

DOI：10.13568/j.cnki.651094.2017.03.006

摘要

Abstract

关键词

Keywords

references

原位合成可见光响应TiO₂/SnS₂及其光催化还原水中Cr(Ⅵ)的性质研究

原位合成可见光响应TiO₂/SnS₂及其光催化还原水中Cr(Ⅵ)的性质研究