Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 305, Issue -, Pages 8-14Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.11.033
Keywords
Meso-silica materials; PPCPs; Adsorption; Template effect; Octanol/water partition coefficient
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Funding
- Funds for National Creative Research Groups of China [51121062]
- Frontier and Application Basis Research Project of Chongqing [cstc2015jcyjA20024]
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In this study, mesoporous silica (meso-silica) MCM-41 and those with the templates retained were synthesized and characterized. Adsorption capacities of the synthesized materials towards typical quinolone antibiotic pollutants, enrofloxacin and norfloxacin as representative, were investigated, and effects of the alkyl chain length of the templates on the adsorption capacity were evaluated. The results of this study indicated that the retained templates enhanced the adsorption capacities (Q(max)) of the meso-silica MCM-41 toward hydrophobic enrofloxacin, but had an inhibitory effect on that towards hydrophilic norfloxacin, which were attributed to the hydrophobic inter-environment created by the long alkyl chains of the retained templates. Importantly, the adsorption capacity increased with the increase of the alkyl chain length of the retained templates. (C) 2015 Elsevier B.V. All rights reserved.
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