2022
DOI: 10.1016/j.micromeso.2022.111788
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Evaluation of visible photocatalytic performance of microwave hydrothermal synthesis of MnO2/TiO2 core-shell structures and gaseous mercury removal

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Cited by 20 publications
(4 citation statements)
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“…Metal oxides from groups II–VI are considered as n-type semiconductors, which are active in UV range of light irradiation, and one main reason for their restricted usability as photocatalysts is fast recombination of photoexcited species. Doping with other metal oxides with lower band gaps and or introducing metal oxides as photoexcited trapping agents improves the base semiconductor quantum efficiency. A literature survey shows that some transition metals as d-type and p-type doping groups on the TiO 2 and ZnO surface are Cr 2 O 3 , SnO, MnO 2 , , FeO, CoO, NiO, Cu 2 O, and CuO . Baniamerian et al , disclosed the application of a Fe 2 O 3 /TiO 2 photocatalyst synthesized by ultrasonic co-precipitation method and evaluated MB photodegradation under visible light radiation.…”
Section: Photocatalystsmentioning
confidence: 99%
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“…Metal oxides from groups II–VI are considered as n-type semiconductors, which are active in UV range of light irradiation, and one main reason for their restricted usability as photocatalysts is fast recombination of photoexcited species. Doping with other metal oxides with lower band gaps and or introducing metal oxides as photoexcited trapping agents improves the base semiconductor quantum efficiency. A literature survey shows that some transition metals as d-type and p-type doping groups on the TiO 2 and ZnO surface are Cr 2 O 3 , SnO, MnO 2 , , FeO, CoO, NiO, Cu 2 O, and CuO . Baniamerian et al , disclosed the application of a Fe 2 O 3 /TiO 2 photocatalyst synthesized by ultrasonic co-precipitation method and evaluated MB photodegradation under visible light radiation.…”
Section: Photocatalystsmentioning
confidence: 99%
“…Doping with other metal oxides with lower band gaps and or introducing metal oxides as photoexcited trapping agents improves the base semiconductor quantum efficiency. 172 174 A literature survey shows that some transition metals as d-type and p-type doping groups on the TiO 2 and ZnO surface are Cr 2 O 3 , 175 SnO, 176 MnO 2 , 177 , 178 FeO, 179 CoO, 180 NiO, 181 Cu 2 O, 182 and CuO. 183 Baniamerian et al 184 , 185 disclosed the application of a Fe 2 O 3 /TiO 2 photocatalyst synthesized by ultrasonic co-precipitation method and evaluated MB photodegradation under visible light radiation.…”
Section: Photocatalystsmentioning
confidence: 99%
“…The suspension was agitated at 200 rpm using a magnetic stirrer (REMI 5 ML) in dark conditions for 30 minutes to achieve dye adsorption-desorption equilibrium on the composite photocatalyst. 46,47 Post adsorption-desorption equilibria, the suspension was positioned in an open place under direct sunlight between 11 a.m. to 1 p.m. as per Indian Standard Time (IST). During this process, periodically 5 ml of suspension were extracted and the solution was recorded using a UV-Vis spectrophotometer to quantify the MB dye content by measuring absorbance at 663 nm.…”
Section: Photocatalytic Studiesmentioning
confidence: 99%
“…28,29 Thus, various methods have been applied to improve the performance of TiO 2 catalysts, for instance, element doping, 30 the construction of the heterostructure, 19 and surface modification. 31 Doping with other elements has proven to be a simple and efficient approach for reducing the wide band gap of TiO 2 and enhancing its photocatalytic activity. 32 Up to now, various modified TiO 2 -based photocatalysts show promise for use in the area of photocatalysts, 33,34 such as the degradation of soluble contaminants, 35 the removal of volatile organic gases, 36 the conversion of greenhouse gasses, 37 and the evolution of hydrogen gas.…”
Section: Introductionmentioning
confidence: 99%