A New Method of Synthesizing Thiol-functionalized Silica and Its Fixation of Hg(II) in Water

被引：0
|
作者：
Su Jixin [1 ]
Zhang Shenping [1 ]
Zhang Mingbo [1 ]
Dong Feifei [1 ]
Qu Wen [2 ]
机构：
[1] Shandong Univ, Sch Environm Sci & Engn, Jinan, Peoples R China
[2] State Ocean Adm, North Sea Marine Forecast Ctr, Qingdao, Shandong, Peoples R China
来源：
2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010) | 2010年
关键词：
synthesis of thiol-functionalized silica; characterization; Hg(II) adsorption; HYBRID MESOPOROUS MATERIALS; SULFONIC-ACID GROUPS; CATALYTIC-ACTIVITY; BISPHENOL-A; MONOLAYERS; ESTERIFICATION; ADSORPTION; HG;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
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.
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页数：4
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