Mesoporous materials for heavy metal ion adsorption synthesized by displacement of polymeric template

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A successful application of the template displacement synthesis to the polymer templated mesoporous silica SBA-15 resulted in the preparation of materials with high surface area and open porosity. It was shown for the first time that such procedure is applicable for neutral polymer templated silica-based materials. Some of the materials, particularly the sample with attached 1-allyl-3-propylthiourea functionality, exhibited promising properties towards mercury ion adsorption. The maximum mercury loading from aqueous solution is 0.16 g Hg2+/g or 0.8 mmol Hg2+/g. The mercury desorption was accomplished by washing the mercury-loaded samples with aqueous thiourea solution.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2002
Language
English
Article Type
Article; Proceedings Paper
Keywords

MOLECULAR-SIEVES; SUPPORTS; SILICA; MONOLAYERS; COPOLYMER; SORPTION; MCM-41; WASTE

Citation

NANOPOROUS MATERIALS III, v.141, pp.607 - 614

ISSN
0167-2991
URI
http://hdl.handle.net/10203/83285
Appears in Collection
CH-Journal Papers(저널논문)
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