Photocatalytic CO2 Reduction to CH4 and Dye Degradation Using Bismuth Oxychloride/Bismuth Oxyiodide/Graphitic Carbon Nitride (BiOmCln/BiOpIq/g-C3N4) Nanocomposite with Enhanced Visible-Light Photocatalytic Activity

The use of visible-light-driven photocatalysts in wastewater treatment, photoreduction CO2, green solar fuels, and cells has elicited substantial research attention. Bismuth oxyhalide its derivatives are a group visible-light that can diminish electron–hole recombination layered structures boost photocatalytic activity. energy bandgap these lies the range visible light. A simple hydrothermal method was applied to fabricate series bismuth oxychloride/bismuth oxyiodide/grafted graphitic carbon nitride (BiOmCln/BiOpIq/g-C3N4) sheets with different contents g-C3N4. fabricated were characterized through XRD, TEM, SEM-EDS, XPS, UV-vis DRS, PL, BET. conversion efficiency CO2 reduction CH4 BiOmCln/BiOpIq 4.09 ?mol g?1 be increased 39.43 by compositing It had an approximately 9.64 times improvement. photodegradation rate constant for crystal violet (CV) dye k = 0.0684 0.2456 3.6 electron paramagnetic resonance results quenching effects indicated 1O2, •OH, h+, •O2? active species aforementioned degradation. Because their heterojunction, prepared ternary nanocomposites possessed characteristics heterojunction type II band alignment.