Synthesis of a novel solid mediator Z-scheme heterojunction photocatalysis CuFe2O4/Cu/UiO-66-NH2 for oxidation of dye in water
Journal
Chemosphere
Journal Volume
296
Date Issued
2022
Author(s)
Abstract
Metal mediator Z-scheme photocatalyst comprises three elements: two semiconductors and a sandwiched metal mediator, so the catalyst can effectively degrade pollutants using visible lights. Proper design and synthesis of Z-scheme with targeted performance has not been systematically proposed. This work proposed the protocol to design and synthesize a Z-scheme photocatalyst with targeted performance. A novel metal mediator Z-scheme photocatalyst CuFe2O4/Cu/UiO-66-NH2 was used to implement the design proposal. After determining synthesis protocol from the theory, the concentrations of three reagents – glucose, L-cysteine, and precursor of UiO-66-NH2 for synthesizing Z-scheme photocatalyst were revised to achieve successful photocatalyst. Dropwise photocatalytic tests were performed to confirm the activities of the synthesized catalysts using 0.112 mmol/mL UiO-66-NH2 precursor, 10 mmol/mL glucose, and 1 mmol/mL L-cysteine yielded effective photocatalyst to degrade rhodamine 6G. The dye degradation tests and EPR tests confirmed the successful synthesis of the designed Z-scheme photocatalyst. © 2022 Elsevier Ltd
Subjects
Demonstration; Heterojunction; Mechanism; Photocatalyst; Synthesis
Other Subjects
Amino acids; Catalyst activity; Glucose; Photocatalytic activity; Water pollution; Design proposal; Dye degradation; L-cysteine; Performance; Photo-catalytic; Proper design; Rhodamine 6G; Synthesised; Visible light; ]+ catalyst; Heterojunctions; catalysis; catalyst; dye; oxidation; photodegradation; water treatment; cysteine; glucose; metal organic framework; phthalic acid derivative; UiO-66; water; Cysteine; Glucose; Metal-Organic Frameworks; Phthalic Acids; Water
Type
journal article