2026-10-13T03:16:28Z https://www.scidb.cn/oai

10.57760/sciencedb.iga.01384 2026-09-15T15:18:15Z

2026-09-15 Preparation Method and Application of a p‑n Heterojunction Pt/TiO₂/AgBr/Ag Composite Photocatalyst doi:10.57760/sciencedb.iga.01384 en The present invention discloses the preparation method of a p-n heterojunction Pt/TiO₂/AgBr/Ag composite photocatalyst and its application in the photocatalytic degradation of ciprofloxacin. Using natural loofah sponge as a template, the catalyst was prepared by loading Pt via alkali treatment, followed by loading TiO₂ and calcination, and finally loading AgBr through ion reaction and ultraviolet irradiation. The dosage of KBr was also optimized. Experiments verified that the catalyst exhibited excellent degradation performance toward ciprofloxacin: the degradation efficiency reached 86.2% when 40 mg of catalyst was used to treat 50 mL of 5 mg/L ciprofloxacin solution, and its catalytic activity was superior to that of pure TiO₂, AgBr and other materials. composite photocatalyst; p-n heterojunction; loofah sponge template; photocatalytic degradation of 于洪文 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank