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[1]朱姗,王晟,刘福生,等.固溶体ZnxCd1-xS光催化降解甲基橙水溶液[J].南京工业大学学报(自然科学版),2014,36(06):23-30.[doi:10.3969/j.issn.1671-7627.2014.06.005]
 ZHU Shan,WANG Sheng,LIU Fusheng,et al.ZnxCd1-xS for degradation of methyl orange solution[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(06):23-30.[doi:10.3969/j.issn.1671-7627.2014.06.005]
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固溶体ZnxCd1-xS光催化降解甲基橙水溶液()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年06期
页码:
23-30
栏目:
出版日期:
2014-11-21

文章信息/Info

Title:
ZnxCd1-xS for degradation of methyl orange solution
文章编号:
1671-7627(2014)06-0023-08
作者:
朱姗1王晟1刘福生2李振2张迪2司高利2
1.南京工业大学 化学化工学院,江苏 南京 210009; 2.南京林业大学 理学院,江苏 南京 210037
Author(s):
ZHU Shan1WANG Sheng1LIU Fusheng2LI Zhen2ZHANG Di2SI Gaoli2
1.College of Chemistry and Chemical Engineering,Nanjing Tech University,Nanjing 210009,China; 2.College of Sciences,Nanjing Forestry University,Nanjing 210037,China
关键词:
ZnxCd1-xS 甲基橙降解 光催化
Keywords:
ZnxCd1-xS degradation of methyl orange photocatalysis
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2014.06.005
文献标志码:
A
摘要:
采用共沉淀法制备固溶体ZnxCd1-xS光催化剂,采用X线衍射仪(XRD),扫描电子显微镜(SEM)和紫外-可见漫反射光谱仪(UV-Vis DRS)对ZnxCd1-xS光催化剂的结构和性能进行表征。以甲基橙水溶液为模型反应物,通过可见光催化降解甲基橙水溶液,对固溶体ZnxCd1-xS光催化剂的可见光催化活性进行评价。探讨Zn的摩尔分率(x)对ZnxCd1-xS光催化剂的能带结构、导带电位、价带电位及光催化活性的影响,考察降解温度、催化剂用量、甲基橙水溶液的初始浓度和pH对可见光催化降解甲基橙性能的影响,并对ZnxCd1-xS光催化剂的光催化活性的提高进行了机制分析。结果表明:与CdS相比,ZnxCd1-xS不仅光催化活性高,而且光稳定性好,可多次循环使用。
Abstract:
Solid-solution ZnxCd1-xS was prepared by the coprecipitation method. The structure and optical properties of ZnxCd1-xS were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM)and ultraviolet-visible diffuse reflectance spectrum(UV-Vis DRS).The photocatalytic activities of ZnxCd1-xS were evaluated by photocatalytic degradation of methyl orange(MO)solution under visible light.The effects of x value on the band structure,the conduction band(CB),the valence band(VB), and the catalytic activity were investigated.The influence factors of photocatalytic degradation,such as reaction temperature,the amount of catalyst,the concentration of the MO solution, and pH, were analyzed, and the mechanism of increasing the catalytic activity was also discussed.Results showed that ZnxCd1-xS had higher efficiency on degradation of MO than CdS,and exhibited the good stability and more times of recycling.

参考文献/References:

[1] 王益林,陆建平,兰宇卫,等.Cu2+掺杂CdS纳米晶的制备与表征[J].应用化学,2009,26(3):321-323.
[2] 刘军,周伟昌,张建福.CdS:Cu一维纳米结构及其光子学特性研究[J].物理学报,2012,61(20):317-322.
[3] 郑新华,张兵,李庆霖,等.Pt/CdS的表面性质对乙醇水溶液光催化脱氢性能的影响[J].分子催化,1991,5(4):340-347.
[4] Nag A,Sapra S,Sharma A,et al.A study of Mn2+ doping in CdS nanocrystals[J].Chemistry of Materials,2007,19(13):3252-3259.
[5] 唐利锋,李越湘,彭绍琴,等.乙二胺存在下溶剂热制备纳米硫化镉及其光催化性能[J].功能材料,2011,42(1):120-128.
[6] 杜欢,王晟,刘恋恋,等.复合半导体光催化剂p-CoO/n-CdS的制备、表征及光催化性能[J].物理化学学报,2010,26(10):2726-2732.
[7] Liu F S,Wang S,Liu L L,et al.Preparation and photocatalysis property of P-N coupled photocatalyst CoO/CdS/TiO2[J].Advanced Materials Research,2012,512-515:1677-1682.
[8] Ge L,Liu J.Efficient visible light-induced photocatalytic degration of methyl orange by QDs sensitized CdS-Bi2WO6[J].Applied Catalysis B:Environmental,2011,105:289-297.
[9] 刘福生,王晟,吴敏,等.染料的合成、表征及其光热性能[J].东南大学学报:自然科学版,2008,38(6):1049-1053.
[10] 桃李,杨燕珍,史成武,等.苯并噻唑碘的改进合成及其在染料敏化太阳电池中的应用[J].物理化学学报,2010,26(3):578-582.
[11] Padam G K,Malhotra G L,Rao S U M.Studies on solution-grown thin films of ZnxCd1-xS[J].Journal of Applied Physics,1988,63(3):770-774.
[12] Garaje S N,Apte S K,Nail S D,et al.Template-free synthesis of nanostructured CdxZn1-xS with tunable band structure for H2 production and organic dye degradation using solar light[J].Environmental Science & Technology,2013,47(12):6664-6672.
[13] Macías-Sánchez S A,Nava R,Hernández-Morales V,et al.Cd1-xZnxS solid solutions supported on ordered mesoporous silica(SBA-15):structural features and photocatalytic activity under visible light[J].International Journal of Hydrogen Energy,2012,37(13):9948-9958.
[14] Liu G J,Zhao L,Ma L J,et al.Photocatalytic H2 evolution under visible light irradiation on a novel CdxCuyZn1-x-yS catalyst[J].Catalysis Communications,2008,9(1):126-130.
[15] Xing C J,Zhang Y J,Yan W,et al.Band structure-controlled solid solution of Cd1-xZnxS photocatalyst for hydrogen production by water splitting[J].International Journal of Hydrogen Energy,2006,31(14):2018-2024.
[16] Bedir M,Kayali R,Oztas M.Effect of the Zn concentration on the characteristic parameters of ZnxCd1-xS thin films developed by spraying pyrolysis method under the nitrogen atmosphere[J].Turkish Journal of Physics,2002,26:121-126.
[17] Cao J,Luo B D,Lin H L,et al.Visible light photocatalytic activity enhancement and mechanism of AgBr/Ag3PO4 hybrids for degradation of methyl orange[J].Journal of Hazardous Materials,2012,217-218:107-115.
  
[18] Macías-Sánchez S A,Nava R,Hernández-Morales V,et al.Cd1-xZnxS supported on SBA-16 as photocatalysts for water splitting under visible light:influence of Zn concentration[J].International Journal of Hydrogen Energy,2013,38(27):11799-11810.
[19] Li W J,Li D Z,Zhang W J,et al.Microwave synthesis of ZnxCd1-xS nanorods and their photocatalytic activity under visible light[J].The Journal of Physical Chemistry C,2010,114(5):2154-2159.
[20] Li W J,Li D Z,Lin Y M,et al.Evidence for the active species involved in the photodegradation process of methyl orange on TiO2[J].The Journal of Physical Chemistry C,2012,116(5):3552-3560.
[21] Zhang Y R,Wan J,Ke Y Q.A novel approach of preparing TiO2 films at low temperature and its application in photocatalytic degradation of methyl orange[J].Journal of Hazardous Materials,2010,177(1):750-754.
[22] 李倩,王城,查俊,等.短弧氙灯光谱特性及其在太阳模拟器中应用[J].光谱学与光谱分析,2012,32(6):1447-1450.
[23] Wang W Z,Zhu W,Xu H L.Monodisperse,mesoporous ZnxCd1-xS nanoparticles as stable visible-light-driven photocatalysts[J].The Journal of Physical Chemistry C,2008,112(43):16754-16758.
[24] Akyol A,Yatmaz H C,Bayramoglu M.Photocatalytic decolorization of Remazol Red RR in a aqueous ZnO suspensions[J].Applied Catalysis B:Environmental,2004,54(1):19-24.
[25] Kansal S K,Singh M,Sud D.Studies on TiO2/ZnO photocatalysed degradation of lignin[J].Journal of Hazardous Materials,2008,153(1):412-417.
[26] Kansal S K,Singh M,Sud D.Studies on photodegradation of two commercial dyes in aqueous phase using different photocatalysts[J].Journal of Hazardous Materials,2007,141(3):581-590.
[27] Cao J,Luo B,Lin H,et al.Photocatalytic activity of novel AgBr/WO3 composite photocatalyst under visible light irradiation for methyl orange degradation[J].Journal of Hazardous Materials,2011,190(1):700-706.
[28] Lin X P,Huang F Q,Wang W D,et al.Methyl orange degradation over a novel Bi-based photocatalyst Bi3SbO7:correlation of crystal structure to photocatalytic activity[J].Dyes and Pigments,2008,78(1):39-47.
[29] Kaur J,Bansal S,Singhal S.Photocatalytic degradation of methyl orange using ZnO nanopowders synthesized via thermal decomposition of oxalate precursor method[J].Physica B:Condensed Matter,2013,416:33-38.

备注/Memo

备注/Memo:
收稿日期:2013-12-18
基金项目:国家自然科学基金(50876047); 江苏高校优势学科建设工程
作者简介:朱姗(1989—),女,江苏镇江人,硕士,主要研究方向为功能材料; 王晟(联系人),副教授,E-mail:w_angsheng@njtech.edu.cn..
更新日期/Last Update: 2014-11-20