Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
147582 | Chemical Engineering Journal | 2014 | 8 Pages |
•A novel heterojunction CdS–WO3 photocatalyst is prepared via hydrothermal method.•The combination of 30%-CdS–70%-WO3 results in a highly active photocatalyst for the degradation of Ciprofloxacin.•Holes were the main active species of the CIP degradation.•The CdS–WO3 photocatalyst has good stability.
In this report, a novel CdS–WO3 nano-heterojunction photocatalyst was successfully synthesized by a multi-step hydrothermal method. Obtained samples exhibit enhanced photocatalytic activity compared with pure WO3 and CdS for the degradation of Ciprofloxacin (CIP). Particularly, 30%-CdS–70%-WO3 sample shows the highest degradation ratio (88.85%) of CIP among all samples, which is about 3 times over the pure WO3. This activity enhancement could be attributed to the fast migration of photo-induced charge-carriers, which can sufficiently inhibit the recombination of electron–hole pairs.