PHOTOCATALYTIC DEGRADATION OF PHENOL AND CHLORINATED PHENOLS USING AG-TIO2 IN A SLURRY REACTOR

被引：73

作者：

ALBERICI, RM ^{[1
]}

JARDIM, WF ^{[1
]}

机构：

[1] UNICAMP,INST QUIM,BR-13081970 CAMPINAS,SP,BRAZIL

来源：

WATER RESEARCH | 1994年 / 28卷 / 08期

基金：

巴西圣保罗研究基金会;

关键词：

PHOTOCATALYSIS; TIO2; AG-TIO2; SLURRY REACTOR; HYDROGEN PEROXIDE; PHENOL; CHLORINATED PHENOLS;

D O I：

10.1016/0043-1354(94)90258-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photodegradation of phenol (PhOH), 2,4-dichlorophenol (2,4-DCP), 2,3,5-trichlorophenol (2,3,5-TCP) and pentachlorophenol (PCP) was investigated using an open upflow slurry reactor and TiO2 (Ag-loaded) as photocatalyst. Light was provided by three 125 W high-pressure mercury lamps. Best degradation rates were obtained using 250 mg 1(-1) of Ag-TiO2 in the presence of H2O2 and a constant supply of air (1.71 min(-1)). Under this optimized condition, destruction rate constants obtained for a 1x10(-4)M solution of PhOH, 2,4-DCP, 2,3,5-TCP and PCP were 0.0493, 0.0430, 0.0367 and 0.0356 min(-1), respectively. Each gram of phenol required 1.70 kW for its photodestruction.

引用

页码：1845 / 1849

页数：5

共 18 条

[1] KINETIC-STUDIES IN HETEROGENEOUS PHOTOCATALYSIS .2. TIO2-MEDIATED DEGRADATION OF 4-CHLOROPHENOL ALONE AND IN A 3-COMPONENT MIXTURE OF 4-CHLOROPHENOL, 2,4-DICHLOROPHENOL, AND 2,4,5-TRICHLOROPHENOL IN AIR-EQUILIBRATED AQUEOUS-MEDIA [J].