Synthesis of highly phosphonic acid functionalized benzene-bridged periodic mesoporous organosilicas for use as efficient dye adsorbents

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/101231

Title:	Synthesis of highly phosphonic acid functionalized benzene-bridged periodic mesoporous organosilicas for use as efficient dye adsorbents
Authors:	高憲明;Deka, Juti Rani;Liu, Chia-Ling;Wang, Tzu-Hua;Chang, Wei-Chieh;Kao, Hsien-Ming
Contributors:	理學院化學學系
Keywords:	activated carbon;Adsorbents;Adsorption;Applied sciences;aqueous solutions;Azo Compounds - chemistry;benzene;Benzene Derivatives - chemistry;Benzenesulfonates - chemistry;Chemical engineering;Coloring Agents - chemistry;Dyes;electrostatic interactions;Exact sciences and technology;Fourier transform infrared spectroscopy;Heat and mass transfer. Packings, plates;hydrogen bonding;Mass transfer;methylene blue;Methylene Blue - chemistry;nitrogen;nonionic surfactants;nuclear magnetic resonance spectroscopy;Organosilicon Compounds - chemistry;Periodic mesoporous organosilicas;Phenazines - chemistry;phosphates;Phosphonic acid;Phosphonic acids;phosphorous acid;Phosphorous Acids - chemistry;Pollution;Porosity;porous media;Rhodamines - chemistry;silica;Sodium;Stacking;Surface chemistry;Surface-Active Agents - chemistry;transmission electron microscopy;Waste Disposal, Fluid - methods;Water Pollutants, Chemical - chemistry;X-ray diffraction
Date:	2014-08-15
Issue Date:	2026-04-21 14:27:48 (UTC+8)
Publisher:	Elsevier;Kidlington: Elsevier B.V
Abstract:	摘要： •Synthesis of highly phosphonic acid functionalized benzene-bridged PMOs.•Phosphonic acid loaded PMOs as adsorbent for cationic and anionic dyes.•Due to electrostatic interaction the adsorbent has high dye adsorption capacity.•π–π stacking interaction between benzene and dye enhances adsorption capacity.•Intraparticle diffusion played a dominant role in the adsorption process. Periodic mesoporous organosilicas (PMOs) with benzene bridging groups in the silica wall were functionalized with a tunable content of phosphonic acid groups. These bifunctional materials were synthesized by co-condensation of two different organosilane precursors, that is, 1,4-bis(triethoxysilyl)benzene (BTEB) and sodium 3-(trihydroxysilyl)propyl methyl phosphate (SPMP), under acidic conditions using nonionic surfactant Brij-S10 as template. The materials exhibited well-ordered mesostructures and were characterized by X-ray diffraction, nitrogen sorption, TEM, TGA, FTIR, and solid-state NMR measurements. The materials thus obtained were employed as adsorbents to remove different types of dyes, for example, cationic dyes methylene blue and phenosafranine, anionic orange II, and amphoteric rhodamine B, from aqueous solutions. The materials exhibited a remarkably high adsorption capacity than activated carbon due to their ordered mesostructures, a large number of phosphonic acid groups, and high surface areas. The adsorption was mainly governed by electrostatic interaction, but also involved π–π stacking interaction as well as hydrogen bonding. The adsorption kinetics can be better fitted by the pseudo-second order model. The adsorption process was controlled by the mechanisms of external mass transfer and intraparticle diffusion. The materials retained more than 97% dye removal efficiency after use for five consecutive cycles. 其他題名： J Hazard Mater 出版者： Kidlington: Elsevier B.V 出版日期： 2014-08-15 出處： Journal of hazardous materials, 2014-08, Vol.278, p.539-550 版權： 2014 版權： 2015 INIST-CNRS 版權： Copyright © 2014. Published by Elsevier B.V. 識別號： ISSN: 0304-3894 識別號： ISSN: 1873-3336 識別號： EISSN: 1873-3336 識別號： DOI: 10.1016/j.jhazmat.2014.06.016 識別號： PMID: 25010459 識別號： CODEN: JHMAD9
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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