文献类型：期刊文献

英文题名：Lead adsorption by glass derived hydroxyapatite (G-HAp)

作者：Wang, Deqiang[1];Zhan, Lei[1];Piao, Longhua[1];Ruessel, Christian[2];Liang, Wen[1]

机构：[1]E China Univ Sci & Technol, Res Inst Biomat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Univ Jena, Otto Schott Inst, Jena, Germany

年份：2011

卷号：52

期号：5

起止页码：207

外文期刊名：PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B

收录：;EI(收录号：20115114618802);WOS:【SCI-EXPANDED(收录号:WOS:000297437400004)】；

基金：The authors gratefully acknowledge the financial support of National Nature Science Foundation of China (Project for Young Scientists Fund No. 50902048) and Program for Changjiang Scholars and Innovative Research Team in University (IRT0825). The authors wish to acknowledge the valuable discussion with Prof. D E Day in the Materials Research Center, University of Missouri-Rolla, from whom comes the idea of using glass derived hydroxyapatite in waste water treatment.

语种：英文

外文关键词：Ions - Infrared spectroscopy - Adsorption - Glass - Scanning electron microscopy - Solutions - Sodium borate - X ray diffraction

摘要：Sodium calcium borate glass derived hydroxyapatite was prepared for the absorption of lead ions in aqueous solutions. The effects of different particle sizes, initial pH value and adsorption time on adsorption performance were investigated. The results showed that glass derived hydroxyapatite could effectively immobilize lead ions from solution. The mechanism of immobilizing Pb2+ ions from aqueous solutions by glass derived hydroxyapatite was investigated by the x-ray diffraction, infrared spectroscopy and scanning electron microscopy coupled with energy dispersive spectrometry. The adsorption kinetics of Pb2+ on glass derived hydroxyapatite fit a second order kinetic model.