Evaluation of ammonium removal using a chitosan-g-poly (acrylic acid)/rectorite hydrogel composite

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Evaluation of ammonium removal using a chitosan-g-poly (acrylic acid)/rectorite hydrogel composite
	Wang AQ(王爱勤); Zheng YA(郑易安)
刊名	Journal of Hazardous Materials
	2009
卷号	171 期号:1-3 页码:671-677
关键词	Ammonium Hydrogel composite Fast-responsive High-capacity Regeneration
ISSN号	0304-3894
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	This paper concerns the removal of ammonium ions (NH4+) from aqueous solution using a hydrogel composite chitosan graftedpoly (acrylic acid)/rectoritepreparedfromin situ copolymerization. The effects of rectorite content, contact time, pH, NH4+ concentration and temperature on the adsorption capacity were discussed. Langmuir, Freundlich, Tempkin andRedlich–Peterson isothermswere usedto describe the experimental data. The results indicate that the adsorption equilibrium can be achieved within 3–5 min and, the hydrogel composite has a higher adsorption capacity for NH4+ in a wide pH levels ranged from 4.0 to 9.0.No significant changes in the adsorption capacity are found over the temperature range studied. The adsorption mechanism of NH4+ onto hydrogel composite was proposed, and the reusable ability of this hydrogel adsorbent was evaluated.
学科主题	功能高分子
收录类别	SCI
资助信息	江苏省科技厅项目(BS2007118)
语种	英语
WOS记录号	WOS:000271165100089
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/148]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式 GB/T 7714	Wang AQ,Zheng YA. Evaluation of ammonium removal using a chitosan-g-poly (acrylic acid)/rectorite hydrogel composite[J]. Journal of Hazardous Materials,2009,171(1-3):671-677.
APA	王爱勤,&郑易安.(2009).Evaluation of ammonium removal using a chitosan-g-poly (acrylic acid)/rectorite hydrogel composite.Journal of Hazardous Materials,171(1-3),671-677.
MLA	王爱勤,et al."Evaluation of ammonium removal using a chitosan-g-poly (acrylic acid)/rectorite hydrogel composite".Journal of Hazardous Materials 171.1-3(2009):671-677.