A facile strategy for SnS2/g-C3N4 heterojunction composite and the mechanism in photocatalytic degradation of MO

作者：Chen, Linlin; Chen, Min; Jiang, Deli; Xie, Jimin^*

来源：Journal of Molecular Catalysis A: Chemical , 2016, 425: 174-182.

DOI：10.1016/j.molcata.2016.10.003

• SnS2/g-C3N4
• Heterojunction
• Photocatalytic
• Visible light irradiation

Heterojunction composite has been regarded as an effective and promising pathway for constructing high efficient photocatalysts. In this paper, a facile, simple and cost-effective wet precipitation method is proposed for construction of SnS2/g-C3N4 composite. Detailed characterizations imply that proper ratio of SnS2 and g-C3N4 is beneficial to formation of abundant intimate interfaces, further contributes to remarkable photocatalytic degradation of MO dye under visible light irradiation (lambda > 420 nm). It is found that an enhanced synergistic effect makes contributions to efficient transfer of photoinduced charges between SnS2 and g-C3N4, leading to an enhanced photocatalytic activity with excellent recycling performance. Radical scavenger experiments and ESR experiments show that the reactive (OH)-O-center dot plays a critical role in the degradation progress.

• 出版日期2016-12-15
• 单位江苏大学