Alkaline treatment of antifoulant PVB/SA-grafted ε-MnO2 adsorptive nanocomposite membrane for synchronous separation of pollutants from pharmaceutical effluents

Azad，Hajar1; Mohsennia，Mohsen1,2; Cheng，Chun3; Amini，Abbas4,5

2023-07-01

10.1016/j.jwpe.2023.103756

Journal of Water Process Engineering   影响因子和分区

2214-7144

Conventional membrane filtration processes suffer from severe fouling and permeance decrement due to the accumulation of co-existing pharmaceutical pollutants in pores and valleys of the surface of membranes. Adsorptive nanocomposite (ANC) membranes possess a double function of adsorption and filtration for synchronous separation of pollutants, nevertheless, nano-leaching is a considerable challenge for their applications. Herein, a new high-performance alkali-treated PVB/SA-grafted ε-MnO ANC membrane was fabricated through a facile phase inversion technique, and used for synchronous separation of Cd(II) ions and tetracycline (TC) from aqueous solutions. The chemical structure, elemental characteristic, surface and cross-section morphology, surface hydrophilicity, and surface topography of the fabricated alkali-treated ANC membrane (OH-PVB/SA-ε-MnO) were respectively investigated through FTIR, XPS, FE-SEM, water contact angle and AFM techniques. The alkaline treatment enhanced the pure water flux from 311.54 to 394.62 L/m.h.bar, which was much higher than that for the pristine PVB membrane. The rejection rates of Cd(II) and TC by the OH-PVB/SA-ε-MnO membrane were respectively 98.55 and 98.73 % at pH = 6. The flux recovery ratio of 99.04, 98.66 and 97.61 % was obtained after the first, second and third successive cycles respectively. This verified the excellent antifouling performance of OH-PVB/SA-ε-MnO membrane that was originated from the enhancement of hydroxyl group content.

Adsorptive nanocomposite membrane Alkaline treatment Co-existing pollutants Heavy metals Synchronous separation Tetracycline

SCI

英语

其他

Engineering ; Water Resources

Engineering, Environmental ; Engineering, Chemical ; Water Resources

WOS:001001799700001

ELSEVIER

2-s2.0-85153929635

Scopus

1.Thermodynamic Research Laboratory,Department of Chemistry,University of Kashan,Kashan,Iran
2.Department of Chemical Engineering,University of Kashan,Kashan,Iran
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,China
4.Department of Mechanical Engineering,Australian University-Kuwait,Safat,Mishref,13015,Kuwait
5.Centre for Infrastructure Engineering,Western Sydney University,Penrith,2751,Australia

Azad，Hajar,Mohsennia，Mohsen,Cheng，Chun,et al. Alkaline treatment of antifoulant PVB/SA-grafted ε-MnO2 adsorptive nanocomposite membrane for synchronous separation of pollutants from pharmaceutical effluents[J]. Journal of Water Process Engineering,2023,53.

Azad，Hajar,Mohsennia，Mohsen,Cheng，Chun,&Amini，Abbas.(2023).Alkaline treatment of antifoulant PVB/SA-grafted ε-MnO2 adsorptive nanocomposite membrane for synchronous separation of pollutants from pharmaceutical effluents.Journal of Water Process Engineering,53.

Azad，Hajar,et al."Alkaline treatment of antifoulant PVB/SA-grafted ε-MnO2 adsorptive nanocomposite membrane for synchronous separation of pollutants from pharmaceutical effluents".Journal of Water Process Engineering 53(2023).