pH-Controlled photocatalytic abatement of RhB by an FeWO₄/BiPO₄ p–n heterojunction under visible light irradiation

Abstract

The novel FeWO4/BiPO4 heterojunction generates an inner electric field to promote electron–hole separation efficiency and is a proficient photocatalyst.

Synthesis, characterization and catalytic performance of magnetic La0.7Sr0.3MnO3/α-Fe2O3 with p–n heterojunction structure

“…At present, photocatalytic technology has been widely studied in solar energy conversion and environmental remediation [3][4][5]. For example, the pn heterojunction structure of FeWO 4 /BiPO 4 showed stronger photocatalytic capability than BiPO 4 for Rhodamine B and tetracycline dye degradation under visible light irradiation [6]. Compared with La 0.7 Sr 0.3 MnO 3 and TiO 2 , the p-n heterojunction La 0.7 Sr 0.3 MnO 3 /TiO 2 exhibited better photocatalytic effect on the degradation of methyl orange (MO) wastewater under sunlight [7].…”

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C3N4heterojunction for the treatment of refractory pharmaceutical pollutants

“…By stirring in the dark for 15 min, the equilibrium between the adsorption and desorption of suspensions was established. 29 A visible light source was then flashed at the reaction mixture. At a predetermined period of 15 min, the 3 mL suspension of the AZI and TC solutions was removed to examine their concentrations and filtered through a 0.45 mm millipore filter to separate the photocatalyst.…”