| Adsorption behavior of phosphate on Lanthanum（III） doped mesoporous silicates material |
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| 引用本文： | Jianda Zhang,Zhemin Shen,Wenpo Shan,Ziyan Chen,Zhijian Mei,Yangming Lei,Wenhua Wang. Adsorption behavior of phosphate on Lanthanum（III） doped mesoporous silicates material[J]. 环境科学学报(英文版), 2010, 22(4): 507-511. DOI: 10.1016/S1001-0742(09)60141-8 |
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| 作者姓名： | Jianda Zhang Zhemin Shen Wenpo Shan Ziyan Chen Zhijian Mei Yangming Lei Wenhua Wang |
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| 作者单位： | Jianda Zhang,Zhemin Shen,Zhijian Mei,Yangming Lei,Wenhua Wang(School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China);Wenpo Shan(College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China);Ziyan Chen(College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China) |
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| 基金项目： | This work was supported by the National Major ResearchPlan for Water Pollution Control and Treatment ofChina (No. 2008ZX07101-015). |
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| 摘 要： | ![]()
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| 关 键 词： | 硅酸盐材料 磷酸盐溶液 镧（Ⅲ） 吸附行为 Langmuir 介孔 掺杂 溶胶凝胶法 |
| 收稿时间： | 2009-06-11 |
| 修稿时间： | 2009-11-12 |
Adsorption behavior of phosphate on Lanthanum(III) doped mesoporoussilicates material |
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| Jianda Zhang,Zhemin Shen,Wenpo Shan,Ziyan Chen,Zhijian Mei,Yangming Lei and Wenhua Wang. Adsorption behavior of phosphate on Lanthanum(III) doped mesoporoussilicates material[J]. Journal of environmental sciences (China), 2010, 22(4): 507-511. DOI: 10.1016/S1001-0742(09)60141-8 |
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| Authors: | Jianda Zhang Zhemin Shen Wenpo Shan Ziyan Chen Zhijian Mei Yangming Lei Wenhua Wang |
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| Affiliation: | 1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China. E-mail: zjdrf@163.com,1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China.,2. College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China,3. College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China,1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China.,1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China. and 1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China. |
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| Abstract: | ![]()
A series of lanthanum doped meosoporous MCM-41 (LaxM41, x is Si/La molar ratio) was prepared by sol-gel method. The surfacestructure of the materials was investigated with X-ray diffraction and N2 adsorption/desorption technique. The content of La in thematerials 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-ionson phosphate adsorption were also evaluated. The phosphate adsorption kinetics of LaxM41 could be well-described by the pseudosecond-order model, and Langmuir isotherm fit equilibrium data much better than the Freundlich isotherm. |
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| Keywords: | lanthanum doped mesoporous material phosphate adsorption eutrophication |
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