TITANIUM-DIOXIDE PHOTOCATALYZED DEGRADATION OF ORGANOPHOSPHATE IN A SYSTEM SIMULATING THE NATURAL AQUATIC ENVIRONMENT

被引:8
作者
HUNG, ST [1 ]
MAK, MKS [1 ]
机构
[1] CITY POLYTECH HONG KONG,DEPT APPL SCI,TAT CHEE AVE,KOWLOON,HONG KONG
关键词
PHOTOCATALYSIS; DECONTAMINATION; ORGANOPHOSPHATE; TITANIUM DIOXIDE;
D O I
10.1080/09593339309385288
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The feasibility of environmental decontamination by photocatalysis was assessed by a ternary system organophosphate/fulvic acid/TiO2 simulating a common pesticide problem in aquatic systems. Fulvic acid was found to compete with the pesticide for the surface of the semiconductor particles under illumination substantially retarding the rate of degradation of the contaminant. Photocatalysed decomposition leading to bleaching of the fulvic acid by TiO2 illumination was also observed.
引用
收藏
页码:265 / 269
页数:5
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