%0 Journal Article
%T Adsorption behavior of phosphate on Lanthanum(III) doped mesoporous silicates material<br>Adsorption behavior of phosphate on Lanthanum（III） doped mesoporous silicates material
%A Jianda Zhang
%A Zhemin Shen
%A Wenpo Shan
%A Ziyan Chen
%A Zhijian Mei
%A Yangming Lei
%A Wenhua Wang
%A <br>Jianda Zhang
%A Zhemin Shen
%A Wenpo Shan
%A Ziyan Chen
%A Zhijian Mei
%A Yangming Lei
%A Wenhua Wang
%J 环境科学学报(英文版)
%D 2010
%I 
%X A series of lanthanum doped meosoporous MCM-41 (LaxM41, x is Si/La molar ratio) was prepared by sol-gel method. The surface structure of the materials was investigated with X-ray diffraction and N2 adsorption/desorption technique. The content of La in the materials was determined by ICP. It was found that the La content of La25M41, La50M41 and La100M41 was 7.53%, 3.89% and 2.32%, respectively. The phosphate adsorption capacities increased with increasing amount of La incorporation. With 0.40 g La25M41 99.7% phosphate could be removed. The effects of Si/La molar ratio, LaxM41 dose, pH, initial concentration of phosphate solution, co-ions on phosphate adsorption were also evaluated. The phosphate adsorption kinetics of LaxM41 could be well-described by the pseudo second-order model, and Langmuir isotherm fit equilibrium data much better than the Freundlich isotherm.
%K lanthanum doped
%K mesoporous material
%K phosphate adsorption
%K eutrophication<br>硅酸盐材料
%K 磷酸盐溶液
%K 镧（Ⅲ）
%K 吸附行为
%K Langmuir
%K 介孔
%K 掺杂
%K 溶胶凝胶法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=B6A886C163FFA40818DCA46B8A6EAF5F&yid=140ECF96957D60B2&vid=BC12EA701C895178&iid=E158A972A605785F&sid=B7B25E832E7F23D8&eid=B99A53AADE50D922&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=20