Degradation of azo dye acid red B on manganese dioxide in the absence and presence of ultrasonic irradiation

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	Degradation of azo dye acid red B on manganese dioxide in the absence and presence of ultrasonic irradiation
	Ge, JT; Qu, JH
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2003
卷号	100 期号:1 页码:197-207
关键词	manganese dioxide sonochemistry acid red B decolorization mineralization
英文摘要	Degradation of azo dye acid red B (ARB) on MnO2 in the absence and presence of ultrasonic irradiation (sonication) has been investigated. The effect of initial pH, anions (Cl-, NO3-, SO42-), and saturated gas (argon/oxygen) has been studied. The experimental results show that decolorization of the dye on MnO2 is highly pH dependent, with increasing decolorization efficiencies at decreasing pH values. The SO42- and NO3- ions are observed to suppress the adsorption of ARB on MnO2 dramatically, suggesting competitive nature with the dye. Sonication accelerates decolorization and mineralization of the dye. And oxygen used as saturated gas is more favorable for mineralization of the dye than argon. The average particle diameter of MnO2 decreases from 47.5 to 3.19 mum after sonication. (C) 2003 Elsevier Science B.V. All rights reserved.
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:000184062800015
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23752]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Ge, JT,Qu, JH. Degradation of azo dye acid red B on manganese dioxide in the absence and presence of ultrasonic irradiation[J]. JOURNAL OF HAZARDOUS MATERIALS,2003,100(1):197-207.
APA	Ge, JT,&Qu, JH.(2003).Degradation of azo dye acid red B on manganese dioxide in the absence and presence of ultrasonic irradiation.JOURNAL OF HAZARDOUS MATERIALS,100(1),197-207.
MLA	Ge, JT,et al."Degradation of azo dye acid red B on manganese dioxide in the absence and presence of ultrasonic irradiation".JOURNAL OF HAZARDOUS MATERIALS 100.1(2003):197-207.