A flower-like metal-organic frameworks fabricated BiOCl heterojunction with enhanced visible light photocatalytic activity

Efficient adsorption‐photocatalysis activity of ternary ZnO‐Sm2O3‐MgO co‐modified biochar for dye removal

“…The photodegradation reaction was carried out with the assistance of e − /h + pairs under solar light irradiation, which promoted the redox reaction of dyes adsorbed on the catalyst surface 3,4 . Under solar‐light irradiation, e − was excited from valance band (VB) to conduce band (CB), forming the e − /h + pairs.…”

“…The photodegradation reaction was carried out with the assistance of e À /h + pairs under solar light irradiation, which promoted the redox reaction of dyes adsorbed on the catalyst surface. 3,4 Under solar-light irradiation, e À was excited from valance band (VB) to conduce band (CB), forming the e À /h + pairs. e À reacted with dissolved oxygen to form superoxide (•O 2 À ) radicals, which were protonated to produce hydrogen peroxide radical (HOO•).…”

“…The accelerated industrialization and urbanization of the world combined with the dramatic population growth have brought serious environmental and resource challenges to the world and human health 1–3 . Organic pollutants from printing and dyeing plants, textile factories, and pharmaceutical plants have seriously discharged into the water environment, endangering plants and animals living in water bodies 4,5 . Hence, various approaches such as membrane engineering, 6 biodegradation, 7 photocatalysis, 8 and adsorption‐photocatalysis 9 are applied to treat water pollution.…”

“…water environment, endangering plants and animals living in water bodies. 4,5 Hence, various approaches such as membrane engineering, 6 biodegradation, 7 photocatalysis, 8 and adsorption-photocatalysis 9 are applied to treat water pollution. Although photocatalysis has low energy consumption, the absence of secondary pollution, and short duration, it is non-effective in water pollutants with high concentrations.…”