PHOTOOXIDATION OF NAPHTHALENAMINES ADSORBED ON PARTICLES UNDER SIMULATED ATMOSPHERIC CONDITIONS

被引：7

作者：

HASEGAWA, K ^{[1
]}

MURASE, M ^{[1
]}

KUBOSHITA, M ^{[1
]}

SAIDA, H ^{[1
]}

SHINODA, M ^{[1
]}

MIYAMOTO, M ^{[1
]}

SHIMASAKI, C ^{[1
]}

YOSHIMURA, T ^{[1
]}

TSUKURIMICHI, E ^{[1
]}

TAKEUCHI, S ^{[1
]}

机构：

[1] TOYAMA UNIV,FAC EDUC,TOYAMA 930,JAPAN

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1993年 / 27卷 / 09期

关键词：

D O I：

10.1021/es00046a009

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The photooxidation of 1- and 2-naphthalenamines (1-NA and 2-NA) adsorbed on particles was examined under simulated atmospheric conditions. Two reactors, a fluidized-bed and a fixed-bed ''merry-go-round'', were used. Adsorbents, coverages of each naphthalenamine on the adsorbents, and light sources were varied. The photooxidation of 1-NA afforded 1,4-naphthoquinone and 2-(1'-naphthylamino)-1,4-naphthoquinone, while the photooxidation of 2-NA gave 2-amino-4-(2'-naphthylimino)-1,4-naphthoquinone and dibenzo[a,h]phenazine. The reaction mechanisms were examined. The relative reactivities of NAs were alumina, silica > TiO2 > coal fly ash > Fe2O3. Photolytic half-lives (t1/2) on silica and alumina decreased with decreasing amounts of NAs adsorbed. Sunlight irradiation enhanced the photooxidation rates from 2 (Al2O3) to 5 (SiO2) times those under UV light irradiation.

引用

页码：1819 / 1825

页数：7

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