Radiation-induced decoloration and sedimentation of colloidal disperse dyes in water

被引:18
作者
Bagyo, ANM
Arai, H
Miyata, T
机构
[1] CTR APPLICAT ISOTOPES & RADIAT,BATAN,INDONESIA
[2] JAPAN ATOM ENERGY RES INST,TAKASAKI RADIAT CHEM RES ESTAB,TAKASAKI,GUMMA 37012,JAPAN
关键词
D O I
10.1016/S0969-8043(96)00182-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The aqueous solutions of disperse dyes can not be easily decolored and sedimented by gamma radiation. The change of pH after irradiation into acidic conditions made sedimentation occur effectively. In oxygen-saturated solutions, absorption band, change of pH and total organic carbon decreased markedly, while in nitrogen-saturated solutions a smooth decrease was seen. Sedimentation was also induced by addition of various electrolytes. The mechanism of the sedimentation was also discussed. Copyright (C) 1997 Elsevier Science Ltd
引用
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页码:175 / 181
页数:7
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