Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6579413 | Chemical Engineering Journal | 2018 | 58 Pages |
Abstract
The visible-light activated In,S-TiO2@rGO nanocomposite was prepared using an innovative ultrasonic-assisted solvothermal method. The products were characterized by XRD, FT-IR, Raman, SEM, HRTEM, TGA and UV-Vis DRS. A considerable red shift in absorption edge of TiO2 was observed after co-doping with In and S. Co-doping of TiO2 with In and S elements and compositing with rGO significantly enhanced its visible-light photocatalytic activity. The complete degradation and 95.5% mineralization of 20â¯mg/L atrazine (ATZ) was attained at 3.0â¯mol% of In, 1â¯mol% of S and 5â¯wt% of rGO within 20â¯min. Reaction with OH at the surface of catalyst was the main mechanism contributed in degradation of ATZ in the developed photocatalytic process. As-made In,S co-doped TiO2@rGO nanocomposite could preserve its catalytic activity during four consecutive recycles for the ATZ removal process. The cytotoxicity of fresh and photocatalytic-treated ATZ solutions assessed using the human hepatic cells (HepG2) indicated that ATZ solution in the developed PCO process could be considerably detoxified.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Amir Hossein Cheshme Khavar, Gholamreza Moussavi, Ali Reza Mahjoub, Mohammad Satari, Parviz Abdolmaleki,