The heterojunction strategy was used to overcome the drawbacks of AgIO3 for its wide band gap and of BiVO4 for its low charge-separation efficiency. The photocatalytic per-formances of the as-prepared AgIO3/BiVO4 were...The heterojunction strategy was used to overcome the drawbacks of AgIO3 for its wide band gap and of BiVO4 for its low charge-separation efficiency. The photocatalytic per-formances of the as-prepared AgIO3/BiVO4 were assessed by the photodegradation of rhodamine B（Rh B） and tetracycline hydrochloride antibiotics（TC） under visible-light irradiation. All the as-prepared samples showed remarkable enhanced photocatalytic efficiency than pure AgIO3 and BiVO4. Especially, 40% AgIO3/BiVO4 exhibited optimum photocatalytic activities among all the prepared samples. The improvements may be ascribed to the synergetic effect between AgIO3 and BiVO4 including matching potentials and effective charge separation. Radical trap experiments determined that h＋ radical plays a significant role in the photodegradation of RhB while e-is not the dominating reactive species.展开更多
基金supported by the National Natural Science Foundation of China(41672278)the Projects of Fujian Provincial Department of Education(JAT160340)+3 种基金the Fujian Provincial Natural Science Foundation Projects(2017Y4001)the Science and Technology Plan Projects of Fuzhou(2017-G-96,2017-G-90)the Scientific Research Projects Funded Start-up Funds of Fujian University of Technology(GY-Z160065)National Undergraduate Training Program for Innovation and Entrepreneurship(201710388074)
文摘The heterojunction strategy was used to overcome the drawbacks of AgIO3 for its wide band gap and of BiVO4 for its low charge-separation efficiency. The photocatalytic per-formances of the as-prepared AgIO3/BiVO4 were assessed by the photodegradation of rhodamine B（Rh B） and tetracycline hydrochloride antibiotics（TC） under visible-light irradiation. All the as-prepared samples showed remarkable enhanced photocatalytic efficiency than pure AgIO3 and BiVO4. Especially, 40% AgIO3/BiVO4 exhibited optimum photocatalytic activities among all the prepared samples. The improvements may be ascribed to the synergetic effect between AgIO3 and BiVO4 including matching potentials and effective charge separation. Radical trap experiments determined that h＋ radical plays a significant role in the photodegradation of RhB while e-is not the dominating reactive species.
