Journal
APPLIED SURFACE SCIENCE
Volume 349, Issue -, Pages 224-229Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.05.014
Keywords
Mesoporous; Organo-functionalization; Adsorption; Antibiotics pollution
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Funding
- National Natural Science Foundation of China [21107009]
- Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering (MOE) [KLIEEE-13-01]
- Fund of State Key Laboratory of Catalysis in DICP [N-13-04]
- State Key Laboratory of Fine Chemicals [KF1406]
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Though adsorption is a promising method to treat anitibotics pollution, the complexity of many kinds of antibiotics molecules and the multiple roles of organic functional groups in organo-functionalized mesoporous silicas adsorbents cause diverse interactions between the antibiotics and the adsorbents. Here, we prepared SBA-15, SH-SBA-15 and SO3H-SBA-15 with comparable textural and structural property for the adsorption of ciprofloxain to elucidate the dual roles of organic functional groups. It is found that the beneficial electrostatic interaction of SO3H-SBA-15 precedes its disadvantageous hydrophilicity for adsorption, which is different from amine functionalized mesoporous materials as reported elsewhere. The potential antibiotics adsorbents, SO3H-SBA-15, could be reused 3 times without obvious decrease of adsorption property. (C) 2015 Elsevier B.V. All rights reserved.
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