Different effects of fluoride surface modification on the photocatalytic oxidation of phenol in anatase and rutile TiO2 suspensions

被引：21

作者：

Lv, Kangle ^{[1
,2
]}

Lu, Chunshan ^{[1
]}

机构：

[1] Zhejiang Univ Technol, State Key Lab Breeding Base Green Chem Synth Tech, Resources & Environm Catalysis Inst, Hangzhou 310032, Zhejiang, Peoples R China

[2] S Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethnic Affairs Commiss & Minist Educ, Wuhan, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2008年 / 31卷 / 09期

关键词：

fluoride; phenol; photocatalytic degradation; selective oxidation; titanium dioxide;

D O I：

10.1002/ceat.200800041

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of calcination temperature on the photocatalytic degradation of phenol with aqueous suspensions of synthetic anatase and rutile TiO2 under UV light irradiation (lambda > 320 nm), was studied in the absence and presence of NaF. The presence of fluoride accelerates the degradation of phenol in anatase TiO2, with this positive effect increasing at first, before declining with increasing calcined temperature. A negative effect of fluoride was observed for all the rutile TiO2 suspensions. The selectivity of catechol increased in the presence of fluoride in both anatase and rutile TiO2 suspensions.

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收藏

页码：1272 / 1276

页数：5

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