Efficient removal of organic contaminants by a visible light driven photocatalyst Sr6Bi2O9

Efficient removal of organic contaminants by a visible light driven photocatalyst Sr6Bi2O9
复制标题

通过可见光驱动光催化剂 Sr6Bi2O9 有效去除有机污染物

DOI:
10.1016/j.cej.2010.05.024
复制
发表时间:
2010-08
影响因子:
15.1
通讯作者:
Shen, Xiong
Shen, Xiong
中科院分区:
工程技术1区
文献类型:
--
作者:
Zhang, Gaoke;Yu, Shujie;Yang, Yanqing;Shen, Xiong

文献摘要

参考文献

被引文献

相似文献

以Bi(NO3)3·5 H2O和Sr(NO3)2为原料,采用溶胶-凝胶法合成了Sr 6 Bi 2 O 9粉体,并通过X射线衍射(XRD)、紫外-可见漫反射光谱(UV-vis DRS)、傅里叶变换红外光谱(FT-IR)和拉曼光谱(拉曼)对粉体进行了表征。在可见光(λ> 400 nm)照射下,Sr 6 Bi 2 O 9粉体对4 BS染料(一种广泛使用的偶氮染料)和4-硝基苯酚(4-NP,一种优先污染物)具有良好的光催化活性。TA-PL分析表明HO不是主要的光氧化剂。自由基清除剂实验表明,在可见光照射下,光催化降解染料的主要活性物种是O2-。探讨了可见光驱动Sr 6 Bi 2 O 9光催化降解有机污染物的可能机理。
Sr6Bi2O9powders were synthesized by a sol–gel method using Bi(NO3)3·5H2O and Sr(NO3)2as the starting materials and were characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance spectrum (UV–vis DRS), Fourier transform infrared (FT-IR) spectrum and Raman spectrum. The as-prepared Sr6Bi2O9powders showed an efficient photocatalytic activity in the decomposition of 4BS dye (a widely used azo dye) and 4-nitrophenol (4-NP, a priority pollutant) under visible light irradiation (λ>400nm). TA-PL analysis reveals that HO was not the dominant photooxidant. The radical scavengers experiments indicated that the main active species was O2−in the photocatalytic degradation of dye under visible irradiation. A possible photodegradation mechanism of organic pollutants by the visible light driven Sr6Bi2O9was discussed.
DOI: 10.1246/cl.1999.1103
发表时间: 1999-10-01
期刊: CHEMISTRY LETTERS
影响因子: 1.6
作者:
Kudo, A;Hijii, S
通讯作者: Hijii, S
DOI: 10.1016/j.apcatb.2008.01.026
发表时间: 2008-08
影响因子: 22.1
作者:
G. Shao;Xue-Jun Zhang;Z. Yuan
通讯作者: G. Shao;Xue-Jun Zhang;Z. Yuan
DOI: 10.1016/s0166-1280(97)00289-3
发表时间: 1998-03-23
期刊: THEOCHEM-JOURNAL OF MOLECULAR STRUCTURE
影响因子: --
作者:
Chen, PC;Lo, W;Tzeng, SC
通讯作者: Tzeng, SC
DOI: 10.1016/j.cej.2009.03.011
发表时间: 2009-08
影响因子: 15.1
作者:
J. Saien;M. Asgari;A. Soleymani;N. Taghavinia
通讯作者: J. Saien;M. Asgari;A. Soleymani;N. Taghavinia
DOI: 10.1021/jp063441z
发表时间: 2006-10-19
影响因子: 3.3
作者:
Long, Mingce;Cai, Weimin;Wu, Yahui
通讯作者: Wu, Yahui