复合纳米微粒Rh3+/TiO2/SnO2的合成、表征及光催化降解4-(2-吡啶偶氮)间苯二酚的研究

doi:10.7517/j.issn.1674-0475.2003.03.161

影像科学与光化学 ›› 2003, Vol. 21 ›› Issue (3): 161-168.DOI: 10.7517/j.issn.1674-0475.2003.03.161

• 研究论文 • 下一篇

复合纳米微粒Rh³⁺/TiO₂/SnO₂的合成、表征及光催化降解4-(2-吡啶偶氮)间苯二酚的研究

崔玉民^1,2, 范少华²

1. 阜阳师范学院, 化学系, 安徽, 阜阳, 236032;
2. 常熟理工学院, 化学与材料系, 江苏, 常熟, 215500

收稿日期:2002-08-19 修回日期:2003-01-08 出版日期:2003-05-23 发布日期:2003-05-23
通讯作者: 崔玉民
基金资助:
安徽省教育厅自然科学基金资助项目(2002kj235)

SYNTHESIS,CHARACTERIZATION AND APPLICATION OF COMPLEX NANOMETER PARTICLES OF Rh³⁺/TiO₂/SnO₂ IN PHOTOCATALYTIC DEGRADATION OF PAR

CUI Yu-min^1,2, FAN Shao-hua ²

1. Department of Chemistry, Fuyang Teacher's College, Fuyang 236032, P.R.China;
2. Department of Chemistry and Material, Changshu College of Technology, Changshu 215500, P.R.China

Received:2002-08-19 Revised:2003-01-08 Online:2003-05-23 Published:2003-05-23

摘要/Abstract

摘要： 采用溶胶凝胶法制备复合纳米微粒Rh³⁺/TiO₂/SnO₂作系列光催化剂,运用BET、XRD等技术对样品进行了表征.讨论了影响污染物4 (2 吡啶偶氮)间苯二酚(PAR)光催化降解率的主要因素,实验结果表明:以Rh³⁺/TiO₂/SnO₂为复合光催化剂,当m(TiO₂)∶m(SnO₂)=56:44,ω(Rh³⁺)=2.0%,催化剂用量为1.0 g,通入空气的流量为10.0 L/min,试液的质量分数为2.0×10^-6,pH=7.0时,光照2h,PAR的降解率达到96.2%.

关键词: 溶胶-凝胶法, 纳米微粒, Rh³⁺/TiO₂/SnO₂, 4-(2-吡啶偶氮)间苯二酚, 光催化降解, 铑离子

Abstract: Rh³⁺/TiO₂/SnO₂ complex nanometer particles with series of photocatalyst were prepared by the sol gel process.BET and XRD etc.techniques were used for the characterization of samples.The primary factors which influence the photocatalytic degradation of 4-(2-pyridinediazoyl)resorcinol were discussed.The results show that the photodegradation rate of 4-(2-pyridinediazoyl) resorcinol can be reached to 96.2% by using Rh³⁺/TiO₂/SnO₂ as complex photocatalyst,with m (TiO₂∶m(SnO₂)=56∶44,quantity of Rh³⁺/TiO₂/SnO₂=1.0 g, ω (Rh³⁺ )=2.0%,the rate of flow of air =10.0 L/min,pH=7.0,mass fraction of 4-(2-pyridinediazoyl)resorcinol=2.0×10^-6 ,illumination time=2 h.

Key words: sol-gel process, nanometer particles, Rh³⁺/TiO₂/SnO₂, photocatalytic degradation, 4-(2-pyridinediazoyl)resorcinol, Rh³⁺

中图分类号:

崔玉民, 范少华. 复合纳米微粒Rh³⁺/TiO₂/SnO₂的合成、表征及光催化降解4-(2-吡啶偶氮)间苯二酚的研究[J]. 影像科学与光化学, 2003, 21(3): 161-168.

CUI Yu-min, FAN Shao-hua . SYNTHESIS,CHARACTERIZATION AND APPLICATION OF COMPLEX NANOMETER PARTICLES OF Rh³⁺/TiO₂/SnO₂ IN PHOTOCATALYTIC DEGRADATION OF PAR[J]. Imaging Science and Photochemistry, 2003, 21(3): 161-168.

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复合纳米微粒Rh³⁺/TiO₂/SnO₂的合成、表征及光催化降解4-(2-吡啶偶氮)间苯二酚的研究

SYNTHESIS,CHARACTERIZATION AND APPLICATION OF COMPLEX NANOMETER PARTICLES OF Rh³⁺/TiO₂/SnO₂ IN PHOTOCATALYTIC DEGRADATION OF PAR

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