An efficient round-the-clock La2NiO4 catalyst for breaking down phenolic pollutants
An efficient round-the-clock La2NiO4 catalyst for breaking down phenolic pollutants
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用于分解酚类污染物的高效全天候 La2NiO4 催化剂
DOI：
10.1039/c2ra20233f
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发表时间：
2012-05
期刊：
影响因子：
3.9
通讯作者：
Li, Hexing
中科院分区：
文献类型：
--
作者：
Li, Guisheng;Zhang, Ya;Wu, Ling;Wu, Fang;Wang, Rong;Zhang, Dieqing;Zhu, Jian;Li, Hexing
在溶剂热条件下，通过La(NO3)3和Ni(NO3)2的共醇解合成了一种新型的层状钙钛矿晶体La2NiO4光催化剂。它在可见光照射下甚至在……条件下对4 - 氯苯酚的矿化表现出高活性。
A novel La2NiO4 photocatalyst in layered perovskite crystal was synthesized by co-alcoholysis of La(NO3)3 and Ni(NO3)2 under solvothermal conditions. It exhibited high activity for mineralizing 4-chlorophenol under visible light irradiation and even in the dark, leading to round-the-clock photocatalysis. The photocatalytic mechanism of the La2NiO4 in the absence of light irradiation was discussed based on both the structural characterizations and the kinetic studies. Both the La2NiO4 crystals and the organic molecules played key roles for starting the degradation reaction in dark. The 4-chlorophenol firstly ionized into anions, followed by donating electrons to La2NiO4 owing to the positively charged surface. Then, the electrons could react with dissolved O2 to produce ˙O2−, which subsequently reacted with H+ to form ˙OH radicals. These highly active ˙OH radicals could oxidize 4-chlorophenol into CO2, leading to complete degradation.
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影响因子：
4.3
作者：
Wang, Xuefei;Li, Shufen;Liu, Shengwei
通讯作者：
Liu, Shengwei
影响因子：
22.1
作者：
Hui Wang;Jianlong Wang
通讯作者：
Hui Wang;Jianlong Wang
影响因子：
11.4
作者：
Wu, Jin-Ming;Wen, Wei
通讯作者：
Wen, Wei
影响因子：
11.4
作者：
Li, Gui-Sheng;Zhang, Die-Qing;Yu, Jimmy C.
通讯作者：
Yu, Jimmy C.
影响因子：
2.8
作者：
A. Bhatnagar;A. Minocha;E. Kumar;M. Sillanpää;Byong-hun Jeon
通讯作者：
A. Bhatnagar;A. Minocha;E. Kumar;M. Sillanpää;Byong-hun Jeon