文献类型：期刊文献

英文题名：Lead removal performance of glass derived hydroxyapatite scaffolds prepared by dipping polymer foams in a glass slurry

作者：Gu, Donglin[1];Ou, Haipeng[1];Li, Xiaowei[1];Ruessel, Christian[2];Liang, Wen[1]

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

年份：2014

卷号：55

期号：4

起止页码：176

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：20144600193430);WOS:【SCI-EXPANDED(收录号:WOS:000356403900003)】；

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).

语种：英文

外文关键词：Infrared spectroscopy - Ions - Sodium borate - Scaffolds - Scanning electron microscopy - Solutions - Compressive strength - Hydroxyapatite - X ray diffraction

摘要：Sodium calcium borate glass derived hydroxyapatite (G-HAP) scaffolds were prepared by dipping with polyurethane foam and followed by immersion in 0.1 M K2HPO4 solution for several days for the immobilization of lead ions in aqueous solutions. The effects of glass and ethyl-cellulose (EC) contents on the porosity and compressive strength of the scaffolds were studied. The effects of different initial pH values and ion concentrations on the lead removal performance were investigated. The mechanism of G-HAP scaffolds in immobilizing Pb2+ ions from aqueous solutions was investigated by the x-ray diffraction, infrared spectroscopy and scanning electron microscopy-energy dispersive spectrometry. The results showed that G-HAP scaffolds could immobilize lead ions in solution effectively.