标题：A New Method of Synthesizing Thiol-functionalized Silica and Its Fixation of Hg(II) in Water
作者：Su Jixin; Zhang Shenping; Zhang Mingbo; Dong Feifei; Qu Wen
作者机构：[Su Jixin; Zhang Shenping; Zhang Mingbo; Dong Feifei] Shandong Univ, Sch Environm Sci & Engn, Jinan, Peoples R China.; [Qu Wen] State Ocean Adm, Nor 更多
会议名称：4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE)
会议日期：JUN 18-20, 2010
来源：2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010)
关键词：synthesis of thiol-functionalized silica; characterization; Hg(II); adsorption
摘要：Thiol-functionalized silica was successfully synthesized by cheaper chloropropyl trichlorosilane and NaHS instead of expensive 3-Mercaptopropyltriethoxysilylane agent. The silica-SH and its precursor were characterized by BET, FT-IR, TOC and element analysis. Surface coverage density of silicachloropropyl and silica-SH was 2.5mmol/g and 1.56mmol/g, respectively. The silica-SH was used as sorbent to fix heavy metal ions-Hg(II), and showed great potential for fixation of Hg (II) from water, the saturation adsorption capacity for Hg(II) reached as high as 0.235mmol/g.