Photocatalytic degradation of methylene blue by tio2-graphene composite

• 發表在: Solid State Phenomena
• 主要作者: 2-s2.0-85120523175
• 格式: Conference paper
• 語言: English
• 出版: Trans Tech Publications Ltd 2021
• 在線閱讀: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120523175&doi=10.4028%2fwww.scientific.net%2fSSP.317.257&partnerID=40&md5=5012d4acee2cdf19f3ae78a8bb713e1f

Inappropriate treatments of discharge wastewater from textile industries effluents with high concentrated dye are dangerous to the human and aquatic life due to the carcinogenic effect and chemical toxicity. Therefore, by using a suitable treatment such as Advance Oxidation Process (AOP) of titanium oxide (TiO2) photocatalysis may reduce or even could fully treated of the polluted water into clean water. Interestingly, the addition of graphene oxide (GO) into TiO2 system showed better photocatalytic efficiency of dye degradation as compared to TiO2 photocatalyst alone due to a sufficient amount of radicals supply by the GO. The oxide radicals reacted with the dye radicals and eliminate the possibility of any chances of recombination of photons and electrons during the photodegradation process. Graphene/TiO2 immobilized system was prepared by coated onto the glass supported by polyvinyl alcohol (PVA)/polyvinyl chloride (PVC) binder. The adhesion strength of the immobilized system was fixed at ratio 1:0.025 of PVA/PVC binders. As a result, the immobilized system showed a high degradation rate of methylene blue (MB) dye due to the improvement of charge separation and also good adhesion property and sustainability of the film during continuous wastewater treatment. © 2021 Trans Tech Publications Ltd, Switzerland.