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

Author

Su Jixin ; Zhang Shenping ; Zhang Mingbo ; Dong Feifei ; Qu Wen

Author_Institution

Sch. of Environ. Sci. & Eng., Shandong Univ., Jinan, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

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 silica-chloropropyl 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.

Keywords

Fourier transform spectra; biochemistry; infrared spectra; organic compounds; silicon compounds; water; 3-Mercaptopropyltriethoxysilylane agent; Fourier transform infrared spectroscopy; SiO₂; chloropropyl trichlorosilane; element analysis; fixation; saturation adsorption capacity; surface coverage density; thiol functionalized silica; water; Chemicals; Inorganic materials; Mercury (metals); Mesoporous materials; Ocean temperature; Organic materials; Sea surface; Silicon compounds; Solids; Surface resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5517542

Filename

5517542