Khalid Mizar, Sri Mulyati, Sri Aprilia, Nasrul Arahman
Due to their ability to combine the physical separation of membrane filtration with organic degradation in one unit, photocatalytic membranes have demonstrated enormous potential for application in energy-efficient water purification and wastewater treatment. Titanium dioxide (TiO2) is the substance most frequently utilized to create photocatalytic membranes. However, TiO2’s use is constrained by its substantial band gap (3.2 eV). On the other hand, tungsten trioxide (WO3) has a fairly small band gap (2.7-2.8 eV) which makes it able to absorb visible light, making the photocatalytic process more efficient. This article examines recent developments in WO3 photocatalytic membranes for wastewater treatment and water purification with a focus on the photocatalytic mechanism, photocatalytic membrane fabrication and development. The mechanism of WO3 semiconductor in pollutant removal is explained in detail. Blending, coating and grafting methods, which are three methods commonly used when fabricating photocatalytic membranes, are discussed. Likewise with the development of WO3 photocatalytic membranes using pure WO3, heterojunction or doping with metal. © 2024 Trans Tech Publications Ltd, All Rights Reserved.
School of Engineering, Universitas Syiah Kuala, Jl. Syeh A. Rauf, No. 7, Banda Aceh, 23111, Indonesia; Department of Chemical Engineering, Universitas Syiah Kuala, Jl. Syeh A. Rauf, No. 7, Darussalam, Banda Aceh, 23111, Indonesia; Graduate School of Environmental Management, Universitas Syiah Kuala, Jl. Tgk. Chik Pante Kulu No. 5, Darussalam, Banda Aceh, 23111, Indonesia; Atsiri Research Center, PUI, Universitas Syiah Kuala, Jl. Syeh A Rauf, No. 5, Darussalam, Banda Aceh, 23111, Indonesia
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