水资源与水工程学报Issue(2)：7-11,5.DOI:10.11705/j.issn.1672-643X.2015.02.02
纳米铁／活性炭新型材料的制备及其对铜离子的吸附性能研究
Research on preparation of a new material of nano-iron and activated carbon with its adsorptive properties to copper ion
摘要
Abstract
Nano-iron was doped into activated carbon by a simple precipitation method .The new material was characterized by BET and TEM and further it along with activated carbon were evaluated in the ad -sorptive capacity for different factors such as pH , initial concentrations , adsorption time and under batch tests and regenerability was also conducted .The results showed that nano-iron particles were successfully doped into activated carbon. The adsorption process of the new material was more favorable at high pH value, and when pH equals 6, the maximum adsorptive capacity of nano-iron and activated carbon a-chieves to 18.73 mg/g, which is higher then that of activated carbon , increases by 150%.Adsorption i-sotherm fitted well Langmuir and Freundlich models .And adsorption kinetics fitted well with Pseudo-sec-ond -order models , as to the loading nano-iron may cause obstruction of copper diffusion to the active ad-sorptive sites, in comparing with the adsorption rate of activated carbon , that was only 0.002 g/( mg· min) , decreases by 60 %.The new material has a good regenerability and better application prospect .关键词
纳米铁/活性炭/铜/重金属/铜离子吸附量Key words
nano-iron/activated carbon/copper/heavy metal/adsorption of copper iron分类
资源环境引用本文复制引用
许智华,张道方,陈维芳..纳米铁／活性炭新型材料的制备及其对铜离子的吸附性能研究[J].水资源与水工程学报,2015,(2):7-11,5.基金项目
上海市科学技术委员会重点科技攻关专项（13230502300）；上海市环境保护科学技术发展基金重点科研项目 （）
