A highly efficient photocatalytic system for environmental applications based on TiO_(2) nanomaterials

作     者：Sapanbir S.Thind Mathias Paul John B.Hayden Anuj Joshi David Goodlett J.Scott McIndoe 

作者机构：Department of ChemistryUniversity of Victoria3800 Finnerty RoadVictoriaBCV8P 5C2 Canada Waterdrape LLCParadise ValleyArizonaUSA Genome BC Proteomics CentreUniversity of VictoriaVictoriaBritish ColumbiaCanada 

出 版 物：《Industrial Chemistry & Materials》 (工业化学与材料（英文）)

年 卷 期：2023年第1卷第3期

页      面：431-442页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：We acknowledge 1219441BC Ltd and NRC IRAP for providing funding to test this technology. JSM thanks Mitacs Canada for Accelerate Fellowship funding for Dr. Mathias Paul. We also thank the Centre for Advanced Materials and Related Technology (CAMTEC) at The University of Victoria for the SEM  EDX  and XRD analysis 

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

摘      要：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.