Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic studies
作者机构：Department of Chemical EngineeringBabol Noshirvani University of TechnologyBabolIran
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2020年第14卷第4期
页 面：673-687页
核心收录：
学科分类：081702[工学-化学工艺] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学]
主 题：amine functionality nanoporous membrane adsorption isotherm thermodynamic parameters landfill leachate
摘 要：Adsorptive polyethesulfone(PES)membranes were prepared by intercalation of powder activated carbon(PAC)with and without ***,PAC was aminated with 1,5-diamino-2-methylpentane,and the physicochemical properties of the functionalized PAC were *** of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane(AC-NH2)from 52.6%to 92.5%and from 22.6 nm to 3.5 nm,*** effect of temperature on the performance of the modified mem-branes was monitored by the flux and chemical oxygen demand(COD)removal of *** ambient tempera-ture,the COD removal of the neat,AC-containing,and AC-NH2 membranes was 47%,52%,and 58.5%,respec-tively.A similar increment was obtained for the membrane flux,which was due to the synergistic effect of the high porosity and large number of hydrophilic functional *** experimental leachate adsorption data were analyzed by Langmuir,Freundlich,and Dubinin-Radushkevich isotherm *** all membranes,the significant thermodynamic parameters(ΔH,ΔS,and ΔG)were calculated and *** isosteric heat of adsorption was lower than 80 kJ·mol^-1,indicating that the interaction between the membranes and the leachate is mainly physical,involving weak van der Waals forces.
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