Generation of singlet oxygen over Bi(V)/Bi(III) composite and its use for oxidative degradation of organic pollutants
Generation of singlet oxygen over Bi(V)/Bi(III) composite and its use for oxidative degradation of organic pollutants
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Bi(V)/Bi(III)复合材料产生单线态氧及其用于氧化降解有机污染物
DOI：
10.1016/j.cej.2014.12.014
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发表时间：
2015-03
影响因子：
15.1
通讯作者：
Heqing Tang
中科院分区：
文献类型：
--
作者：
Ting Zhang;Yaobin Ding;Heqing Tang
采用Bi(V)/Bi（III）复合材料制备了一种高效的单线态制氧系统，用于降解有机污染物。复合材料是通过在盐酸溶液中水解nabio3制备的。通过各种技术监测发现，在制备过程中，通过改变HCl与nabio3的摩尔比，可以调整复合材料的形貌和组成，其优化值为2.0。由于单线态氧的高效生成，复合材料（0.75 g L−1）的使用导致双酚A （0.2 mmol L−1）在20分钟内几乎完全降解，伪一级动力学常数为0.14 min−1。降解体系中的优势反应物质为单线态氧，由复合材料中晶格氧的释放产生。所研究的单线态制氧系统在降解不同有机污染物方面具有普遍的良好性能。
An efficient singlet oxygen generation system was first developed by using Bi(V)/Bi(III) composites for degrading organic pollutants. The composites were prepared by hydrolyzing NaBiO3in HCl solutions. As monitored by various techniques, it was found that the morphology and composition of the composites were able to be tuned by changing the molar ratio of HCl to NaBiO3in the preparation process, which was optimized at 2.0. Due to the efficient generation of singlet oxygen, the use of the composite (0.75 g L−1) resulted in almost complete degradation of bisphenol A (0.2 mmol L−1) in 20 min, with a pseudo-first-order kinetic constant of 0.14 min−1. The dominant reactive species in the degradation system were confirmed to be singlet oxygen, which was generated from the release of the lattice oxygen in the composite. The good performances of the concerned singlet oxygen generation system are general for degrading different organic pollutants.
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影响因子：
2.5
作者：
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DOI：
10.1021/jp905173e
发表时间：
2009-08
期刊：
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影响因子：
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作者：
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DOI：
10.1016/j.jphotochem.2010.05.019
发表时间：
2010-06-25
影响因子：
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作者：
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