Indexed by:
期刊论文
First Author:
Gao, Jinsuo
Correspondence Author:
Gao, JS (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, Linggong Rd 2, Dalian 116024, Peoples R China.
Co-author:
Zhang, Xueying,Xu, Shutao,Tan, Feng,Li, Xinyong,Zhang, Yaobin,Qu, Zhenping,Quan, Xie,Liu, Jian
Date of Publication:
2014-02-10
Journal:
CHEMISTRY-A EUROPEAN JOURNAL
Included Journals:
SCIE、EI、PubMed、Scopus
Document Type:
J
Volume:
20
Issue:
7
Page Number:
1957-1963
ISSN No.:
0947-6539
Key Words:
adsorption; antibiotics; click chemistry; mesoporous materials; periodic
mesoporous organosilicas
Abstract:
Pharmaceutical antibiotics are not easily removed from water by conventional water-treatment technologies and have been recognized as new emerging pollutants. Herein, we report the synthesis of clickable azido periodic mesoporous organosilicas (PMOs) and their use as adsorbents for the adsorption of antibiotics. Ethane-bridged PMOs, functionalized with azido groups at different densities, were synthesized by the co-condensation of 1,2-bis(trimethoxysilyl) ethane (BTME) and 3-azidopropyltrimethoxysilane (AzPTMS), in the presence of nonionic-surfactant triblock-copolymer P123, in an acidic medium. Four different alkynes were conjugated to azide-terminated PMOs by means of an efficient click reaction. The clicked PMOs showed improved adsorption capacity (241 mu g g(-1)) for antibiotics (ciprofloxacin hydrochloride) compared with azido-functionalized PMOs because of the enhanced pi-pi stacking interactions. These results indicate that click reactions can introduce multifunctional groups onto PMOs, thus demonstrating the great potential of PMOs for environmental applications.
Translation or Not:
no
