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Photocatalytic technology using semiconductor catalysts is a promising candidate for light-polluted water treatment. In the past decades, TiO-related nanomaterials and photocatalytic devices have been applied for sewage ex-situ treatment. However, in situ photocatalytic technology using functional membranes is still needed for many large-scale outdoor scenarios. This work successfully fabricated a robust reusable photocatalytic membrane by firmly immobilizing TiO nanoparticles on polymer membranes, supported by various plastic substrates, through an industrial membrane blowing process. The as-fabricated photocatalytic membrane was fabricated by all low-cost and eco-friendly commercial materials and exhibited stable photocatalytic performance in domestic sewage in situ treatment in natural conditions. This work is expected to promote the photocatalytic membrane for practical application.
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http://dx.doi.org/10.3390/ma15072466 | DOI Listing |
Environ Monit Assess
September 2025
Al-Karkh University of Science, Baghdad, Iraq.
POPs (POPs), including pesticides, pharmaceuticals, and industrial chemicals, pose severe environmental and health risks due to their persistence, bioaccumulation, and toxicity. While conventional methods like adsorption and biological treatment are widely used, their inefficiency in mineralizing POPs and generating secondary waste has driven interest in AOPs, particularly photocatalysis. This review examines recent advancements in photocatalytic materials and mechanisms for POP degradation, focusing on semiconductors such as TiO₂, doped catalysts, and visible-light-active composites.
View Article and Find Full Text PDFACS Nano
September 2025
Zhuhai Key Laboratory of Optoelectronic Functional Materials and Membrane Technology, School of Chemical Engineering and Technology/School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China.
Organic semiconductors are very attractive photocatalysts for the production of solar fuels. However, their development is greatly plagued by limited visible light absorption and severe restriction of photoexcited charge carrier separation and transfer caused by the exciton effect resulting from inherent dielectric constraints. Herein, a three-motif molecular junction hydrogen evolution photocatalyst is constructed by linking a donor-acceptor-donor (D-A-D) molecule integrating the photosensitizer unit and the redox unit with holey carbon nitride sheets (HCNS) as a second electron acceptor unit (A) based on the covalent strategy.
View Article and Find Full Text PDFSci Rep
September 2025
Petrolum Applications Department, Egyptian Petroleum Research Institute (EPRI), Ahmed El-Zomer, Nasr City, Cairo, Egypt.
An innovative composite membrane was developed by combining polyvinylidene fluoride (PVDF) with graphene oxide (GO), titania (TiO), and silica (SiO) nanoparticles (PGTS). This innovative membrane was created using solution casting and electrospinning techniques to enhance its surface area and hydrophilic characteristics, while incorporating photocatalytic properties for light-induced oil decomposition. The membrane structure was examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR).
View Article and Find Full Text PDFJ Hazard Mater
August 2025
Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, Shandong 250014, China. Electronic address:
The development of integrated systems for simultaneous chemical threat detection and decontamination is hindered by inherent sensitivity-efficiency trade-offs. We address this challenge through interfacial engineering of a Janus membrane combining D-A molecule functionalized MOFs with PDMS. A gas-liquid interfacial self-assembly strategy enables the creation of a microporous PDMS top layer for vapor preconcentration and vertically aligned MOF nanochannels (2.
View Article and Find Full Text PDFSoft Matter
September 2025
Transport phenomena, Chemical engineering Department, Faculty of applied sciences, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The Netherlands.
Polymer membranes are prime candidates for separation and purification processes, with their functionality enhanced by nanoparticle incorporation and diverse polymer structures. Poly(ionic liquids) (PILs), highly charged electrolyte-like polymers, are gaining interest as membrane polymer matrices. Embedding photocatalytic nanoparticles enables water purification through filtration and degradation reactions.
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