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

来源：

ENVIRONMENTAL TECHNOLOGY | 1993年 / 14卷 / 03期

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

页码：265 / 269

页数：5

共 9 条

[1]

FISHER AM, 1987, ASC S SERIES, V327, P141

[2]

MAK MKS, IN PRESS TOXICOL ENV

[3] BLEACHING OF LIGNIN SOLUTION BY A PHOTOCATALYZED REACTION ON SEMICONDUCTOR PHOTOCATALYSTS [J].

OHNISHI, H ;

MATSUMURA, M ;

TSUBOMURA, H ;

IWASAKI, M .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1989, 28 (06) :719-724

[4]

OLLIS D F, 1991, Environmental Science and Technology, V25, P1523

[5]

POWER JF, 1987, ACS SYM SER, V327, P157

[6] OXIDATION OF SUBSTITUTED PHENOLS IN THE ENVIRONMENT - A QSAR ANALYSIS OF RATE CONSTANTS FOR REACTION WITH SINGLET OXYGEN [J].

TRATNYEK, PG ;

HOLGNE, J .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1991, 25 (09) :1596-1604

[7] INTERACTION OF ATRAZINE WITH LAURENTIAN HUMIC-ACID [J].

WANG, Z ;

GAMBLE, DS ;

LANGFORD, CH .

ANALYTICA CHIMICA ACTA, 1991, 244 (01) :135-143

[8] SPECTROSCOPIC AND STRUCTURAL CHARACTERIZATION OF A LAURENTIAN FULVIC-ACID - NOTES ON THE ORIGIN OF THE COLOR [J].

WANG, ZD ;

PANT, BC ;

LANGFORD, CH .

ANALYTICA CHIMICA ACTA, 1990, 232 (01) :43-49

[9] INTERACTION OF ATRAZINE WITH LAURENTIAN FULVIC-ACID - BINDING AND HYDROLYSIS [J].

WANG, ZD ;

GAMBLE, DS ;

LANGFORD, CH .

ANALYTICA CHIMICA ACTA, 1990, 232 (01) :181-188

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