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Hydrous ferric oxide nanoparticles hosted porous polyethersulfone adsorptive membrane: chromium (VI) adsorptive studies and its applicability for water/wastewater treatment

Abdullah, Norfadhilatuladha and Yusof, Norhaniza and Abu Shah, Muhammad Hafiz and Wan Ikhsan, Syarifah Nazirah and Ng, Zhi Chien and Maji, Subrata and Lau, Woei Jye and Jaafar, Juhana and Ismail, Ahmad Fauzi and Ariga, Katsuhiko (2019) Hydrous ferric oxide nanoparticles hosted porous polyethersulfone adsorptive membrane: chromium (VI) adsorptive studies and its applicability for water/wastewater treatment. Environmental Science and Pollution Research, 26 (20). pp. 20386-20399. ISSN 0944-1344

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Official URL: http://dx.doi.org/10.1007/s11356-019-05208-9

Abstract

In this present study, adsorptive membranes for Cr(VI) ion removal were prepared by blending polyethersulfone (PES) with hydrous ferric oxide (HFO) nanoparticles (NPs). The effects of HFO NPs to PES weight ratio (0–1.5) on the physicochemical properties of the resultant HFO/PES adsorptive membranes were investigated with respect to the surface chemistry and roughness as well as structural morphologies using different analytical instruments. The adsorptive performance of the HFO NPs/PES membranes was studied via batch adsorption experiments under various conditions by varying solution pH, initial concentration of Cr(VI), and contact time. The results showed that the membrane made of HFO/PES at a weight ratio of 1.0 exhibited the highest adsorption capacity which is 13.5 mg/g. Isotherm and kinetic studies revealed that the mechanism is best fitted to the Langmuir model and pseudo-second-order model. For filtration of Cr(VI), the best promising membranes showed improved water flux (629.3 L/m2 h) with Cr(VI) ion removal of 75%. More importantly, the newly developed membrane maintained the Cr(VI) concentration below the maximum contamination level (MCL) for up to 9 h.

Item Type:Article
Uncontrolled Keywords:adsorption, membrane filtration, adsorptive membrane, chromium (VI) removal
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:88840
Deposited By: Yanti Mohd Shah
Deposited On:29 Dec 2020 12:39
Last Modified:29 Dec 2020 12:39

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