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        An overview of SnO2 based Z scheme heterojuctions: Fabrication, mechanism and advanced photocatalytic applications

        Akshay Chawla,Anita Sudhaik,Pankaj Raizada,Aftab Aslam Parwaz Khan,Archana Singh,Quyet Van Le,Van Huy Nguyen,Adem Sreedhar,Saad M. Alshehri,Abdullah M. Asiri,Pardeep Singh 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.116 No.-

        Not just people, but all living species, desire a clean and green environment to live a happy and healthylife. However, in our ever-increasingly congested world, it is quite challenging. Excessive deforestation,factory smoke, various chemical compounds, agricultural chemicals, etc. all pollute our environmentseverely. Some of its adverse consequences include water contamination and a shortage of energy supplies. In recent times, photocatalysts have sparked tremendous attention as a means of addressing energydemands as well as environmental challenges (water pollution). For this, SnO2 and SnO2 based photocatalystshave gained a great attention due to its good photocatalytic ability. In the same way, SnO2-based Zschemephotocatalysts has extended significant interest to address these concerns due to its strong photocatalyticcharacteristics, energy savings, eco-friendliness, and lack of adverse health effects. Though, thephotocatalytic effectiveness of conventional SnO2 semiconductors, with their shortcomings, falls wellshort of the real requirements. The current review emphasizes on admirable properties and several synthesisprocesses of SnO2 which make it an ideal photocatalyst. This study also stresses the fundamentalshortcomings of SnO2 that restrict its utilization. The central section of this review is concentrated onSnO2-based Z-scheme photocatalysts and most recent significant research modification of Z-schemeSnO2-based photocatalysts. The photocatalytic applications of Z-scheme SnO2-based photocatalysts forpollutants removal, energy conversion, and water splitting are also summarized. In conclusion, we haveaddressed the challenges and future exploration of SnO2-based photocatalysts with a Z-scheme heterojunctiontype for pollutant degradation and energy conversion.

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