ic6b02914_si_001.pdf (1.09 MB)
Construction of High-Quality SnO2@MoS2 Nanohybrids for Promising Photoelectrocatalytic Applications
journal contribution
posted on 2017-03-01, 12:19 authored by Xinyu Zhang, Yawei Yang, Shujiang Ding, Wenxiu Que, Zhiping Zheng, Yaping DuHigh-quality
three-dimensional (3D) hierarchical SnO2@MoS2 nanohybrids were successfully obtained via a facile but effective
wet chemistry synthesis method. Meanwhile, the SnO2@MoS2 hybrid film was fabricated through an electrophoretic deposition
method to promote photoelectrocatalytic (PEC) efficiency and solve
the recovery problem. Compared with the pure SnO2 and MoS2 films, the SnO2@MoS2 heterostructures
could decrease the rate of the photoelectron–hole pair’s
recombination, which resulted in the superior PEC pollutant degradation
and water splitting activities. Meanwhile, the SnO2@MoS2 hybrid films with well-defined 3D hierarchical configurations
have large surface areas, abundant active edge sites, and defects
on the basal surfaces, which were also advantageous for the PEC activities
(for pollutant degradation, apparent rate constant k = 5.91 h–1; for water splitting, onset potential
= −0.05 V and current density = 10 mA/cm2). Therefore,
the SnO2@MoS2 hybrid film proved to be a superior
structure for PEC applications.