文章基本信息

标题：Enhanced Removal of Methylene Blue from Aqueous Solution by Pummelo Peel Pretreated with Sodium Hydroxide
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作者：Changwei Hu ; Jianlong Li ; Yin Zhou 等
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：2009
卷号：55
期号：4
页码：619-624
DOI：10.1248/jhs.55.619
出版社：The Pharmaceutical Society of Japan
摘要：In the present study, pummelo peel pretreated with sodium hydroxide is used for adsorption of methylene blue (MB). In order to investigate the effects of pretreatment on the cationic dye adsorption, the kinetics and capacities of raw pummelo peel (RPP) and sodium hydroxide treated pummelo peel (TPP) to remove MB from aqueous solutions were compared. The effects of various experimental parameters ( e.g. , initial pH, dye concentration, contact time) were also studied. According to the maximum adsorption capacity ( q _m) obtained, adsorption capability of pummelo peel is significantly increased after sodium hydroxide treatment. Both adsorption isotherms of RPP and sodium hydroxide TPP fitted the Langmuir model well, but not the Freundlich model. The processes of uptake followed pseudo-first order rate kinetics. The results in this study indicated that sodium hydroxide TPP is a promising adsorbent for removing MB from aqueous solution.
关键词：methylene blue;pretreatment;pummelo peel;adsorption;sodium hydroxide;wastewater