Synthesis, bifunctionalization, and remarkable adsorption performance of benzene-bridged periodic mesoporous organosilicas functionalized with high loadings of carboxylic acids

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题名:	Synthesis, bifunctionalization, and remarkable adsorption performance of benzene-bridged periodic mesoporous organosilicas functionalized with high loadings of carboxylic acids
作者:	謝發坤;Wu, Hao-Yiang;Shieh, Fa-Kuen;Kao, Hsien-Ming;Chen, Yi-Wen;Deka, Juti Rani;Liao, Shih-Hsiang;Wu, Kevin C.-W.
贡献者:	理學院化學學系
关键词:	Acids;Adsorbents;Adsorption;Benzene;Benzene Derivatives - chemistry;Carboxylic acids;Carboxylic Acids - chemistry;Chemistry;Doxorubicin;Doxorubicin - administration & dosage;drug delivery;Drug Delivery Systems;Drugs;Magnetic Resonance Spectroscopy;mesoporous materials;Methylene blue;Methylene Blue - analysis;Methylene Blue - chemistry;Models, Chemical;Organosilicon Compounds - chemical synthesis;Organosilicon Compounds - chemistry;Pollutants;Porosity;Silica;Silicon dioxide;Surface chemistry;X-Ray Diffraction
日期:	2013-05-10
上传时间:	2026-04-21 14:09:12 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： Highly ordered benzene‐bridged periodic mesoporous organosilicas (PMOs) that were functionalized with exceptionally high loadings of carboxylic acid groups (COOH), up to 80 mol % based on silica, have been synthesized and their use as adsorbents for the adsorption of methylene blue (MB), a basic dye pollutant, and for the loading and release of doxorubicin (DOX), an anticancer drug, is demonstrated. These COOH‐functionalized benzenesilicas were synthesized by the co‐condensation of 1,4‐bis(triethoxysilyl) benzene (BTEB) and carboxyethylsilanetriol sodium salt (CES), an organosilane that contained a carboxylic acid group, in the presence of non‐ionic oligomeric surfactant Brij 76 in acidic medium. The materials thus obtained were characterized by a variety of techniques, including powder X‐ray diffraction (XRD), nitrogen‐adsorption/desorption isotherms, TEM, and 13C and 29Si solid‐state NMR spectroscopy. Owing to the exceptionally high loadings of COOH groups, their high surface areas, and possible ππ‐stacking interactions, these adsorbents have very high adsorption capacities and extremely rapid adsorption rates for MB removal and for the controlled loading/release of DOX, thus manifesting their great potential for environmental and biomedical applications. Functionalization matters! Highly ordered benzene‐bridged periodic mesoporous silicas with extremely high loadings (up to 80 mol %) of COOH groups have been synthesized and used as adsorbents for the removal of methylene blue (MB) and the delivery of an anticancer drug, doxorubicin (DOX). These materials exhibited high adsorption capacities, rapid adsorption rates for methylene blue removal, and an excellent loading/release profile for doxorubicin. 其他題名： Chem. Eur. J 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2013-05-10 出處： Chemistry : a European journal, 2013-05, Vol.19 (20), p.6358-6367 資源來源： Alma/SFX Local Collection 版權： Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 0947-6539 識別號： ISSN: 1521-3765 識別號： EISSN: 1521-3765 識別號： DOI: 10.1002/chem.201204400 識別號： PMID: 23512281 識別號： CODEN: CEUJED
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