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Industrial Chemistry & Materials 2023年第3期1卷 431-442页

作者： Sapanbir S.Thind Mathias Paul John B.Hayden Anuj Joshi david goodlett J.Scott McIndoe Department of Chemistry University of Victoria3800 Finnerty RoadVictoriaBCV8P 5C2 Canada Waterdrape LLC Paradise ValleyArizonaUSA Genome BC Proteomics Centre University of VictoriaVictoriaBritish ColumbiaCanada

Sustainable and efficient water treatment techniques to improve the quality of water for various applications include advanced oxidation processes(AOP),mainly focusing on heterogeneous *** science and nanotechnology have contributed to tailoring the properties of photocatalytic materials to significantly enhance their photoactivity and *** we report the development of a well-organized nanoporous TiO_(2)-based photocatalytic reactor for water *** TiO_(2) materials were directly grown using a two-step electrochemical anodization process in ethylene glycol+0.3 wt%NH_(4)F+2 wt%H_(2)*** prepared nanomaterials were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),and energy-dispersive X-ray spectroscopy(EDX).To enhance the photocatalytic activity of the system,water scrubbing was incorporated to boost the presence of oxygen in the water,enhancing the electron uptake at the conduction band thus significantly reducing the electron–hole recombination and increasing the photocatalytic *** further enhance the efficiency and reduce the negative environmental impact of the technology,a UVA-LED assembly was used instead of the typical mercury-based UV lamps for *** nanoporous TiO_(2) was tested as a catalyst for the photochemical oxidation of various categories of pollutants;dye(methylene blue),and the removal of microbes such as *** photoreactor developed in this research work was also successfully applied and tested in real-world applications such as keeping heavily used hot-tub water clean without using harmful chemicals(chlorine,bromine,ozone,etc.)or expensive *** simplicity and efficacy of the new approach described in this study make possible the integration of nanoporous TiO_(2) in the design of high-performance air and water purification technologies.

关键词： TiO_(2)photocatalyst UVA-LEDs Nanostructured materials Photochemical oxidation Wastewater treatment Water scrubbing

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