Fast removal of methylene blue from aqueous solution by adsorption onto chitosan -g-poly(acrylic acid)/attapulgite 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

	Fast removal of methylene blue from aqueous solution by adsorption onto chitosan -g-poly(acrylic acid)/attapulgite composite
	Zhang JP(张俊平); Wang AQ(王爱勤)
刊名	Desalination
	2011
卷号	266 期号:1-3 页码:33-39
关键词	Composites Attapulgite Chitosan Adsorption Methylene blue
ISSN号	0011-9164
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	Batch adsorption experiments were carried out for the removal of methylene blue (MB) cationic dye from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composites (CTS-g-PAA/APT) as adsorbent. The effects of attapulgite (APT) content, initial pH value of the dye solution and temperature on adsorption were investigated. Results showed that APT content of composites had some influence on adsorption capacities, and introducing a small amount of APT could improve adsorption capacity of chitosan-g-poly (acrylic acid) (CTS-g-PAA) to a certain extent. Results from kinetic experimental data showed that the adsorption rate of MB on CTS-g-PAA and CTS-g-PAA/APT with 30% of APT was fast, and more than 90% of the maximum adsorption capacities for MB were achieved within the initial 15 min. The adsorption behaviors of CTS-g-PAA and CTS-g-PAA/APT showed that the adsorption kinetics and isotherms were in good agreement with a pseudo-second-order equation and the Langmuir equation, and the maximum adsorption capacities reached 1873 and 1848 mg/g for CTS-g-PAA and CTS-g-PAA/APT, respectively. The discussion results of the desorption studies implied that CTS-g-PAA and CTS-g-PAA/APT can be used as promising adsorbents for the removal of MB from wastewater.
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(BE2008087)
语种	英语
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/91]
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	Zhang JP,Wang AQ. Fast removal of methylene blue from aqueous solution by adsorption onto chitosan -g-poly(acrylic acid)/attapulgite composite[J]. Desalination,2011,266(1-3):33-39.
APA	张俊平,&王爱勤.(2011).Fast removal of methylene blue from aqueous solution by adsorption onto chitosan -g-poly(acrylic acid)/attapulgite composite.Desalination,266(1-3),33-39.
MLA	张俊平,et al."Fast removal of methylene blue from aqueous solution by adsorption onto chitosan -g-poly(acrylic acid)/attapulgite composite".Desalination 266.1-3(2011):33-39.