Development of reduced graphene oxide membrane on flat Moroccan ceramic pozzolan support. Application for soluble dyes removal
作者： A. Karim , B. Achiou , A. Bouazizi , A. Aaddane , M. Ouammou
DOI: 10.1016/J.JECE.2018.01.055
关键词:
摘要: Abstract A novel reduced graphene oxide composite membrane was successfully prepared on ceramic pozzolan support by chemical grafting and spin-coating method. The graphite firstly oxidized exfoliated to form (GO) that grafted modified surface using 3-Glycidoxypropyltrimethoxysilane (GLYMO). Then, the GO layer thermally treated obtain (rGO) membrane. concentration effect of GLYMO agent studied in range 0.01 0.1 M ethanol. characterized XRD, FTIR, Contact angle, SEM, EDX, AFM Techniques. morphology analysis showed rGO is homogenously adhered with 2.0 μm ± 0.1 thickness 0.05 M GLYMO. experimental results indicated water permeability decreases from 75 2 L/m2.h.bar when increased 0.1 M. membranes were applied for filtration bromothymol blue, methyl orange murexide solutions under pressure 4 bar during 2 h. a good efficiency rejection soluble dyes. For (optimized membrane), values achieved 94, 93 97% respectively.
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