Enhanced adsorption of methylene blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites

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

	Enhanced adsorption of methylene blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites
	Liu Y(刘毅); Zheng YA(郑易安); Wang AQ(王爱勤)
刊名	Journal of Environmental Sciences
	2010
卷号	22 期号:4 页码:486-493
关键词	hydrogel composites vermiculite Methylene Blue adsorption kinetics adsorption isotherms
ISSN号	1001-0742
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	A series of chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites were synthesized and used as adsorbents for the investigation of the effect of process parameters such as vermiculite content, pH of dye solution, contact time, initial concentration of dye solution, temperature, ionic strength and concentration of surfactant sodium dodecyl sulfate on the removal of Methylene Blue (MB) from aqueous solution. The results showed that the adsorption capacity for dye increased with increasing pH, contact time and initial dye concentration, but decreased with increasing temperature, ionic strength and sodium dodecyl sulfate concentration in the present of the surfactant. The adsorption kinetics of MB onto the hydrogel composite followed pseudo second-order kinetics and the adsorption equilibrium data obeyed Langmuir isotherm. By introducing 10 wt.% vermiculite into chitosan-g-poly (acrylic acid) polymeric network, the obtaining hydrogel composite showed the highest adsorption capacity for MB, and then could be regarded as a potential adsorbent for cationic dye removal in a wastewater treatment process.
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
WOS记录号	WOS:000276780700002
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/133]
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	Liu Y,Zheng YA,Wang AQ. Enhanced adsorption of methylene blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites[J]. Journal of Environmental Sciences,2010,22(4):486-493.
APA	刘毅,郑易安,&王爱勤.(2010).Enhanced adsorption of methylene blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites.Journal of Environmental Sciences,22(4),486-493.
MLA	刘毅,et al."Enhanced adsorption of methylene blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites".Journal of Environmental Sciences 22.4(2010):486-493.