The 2D nickel-molybdenum bimetals sulfide synergistic modified hollow cubic CdS towards enhanced photocatalytic water splitting hydrogen production
The 2D nickel-molybdenum bimetals sulfide synergistic modified hollow cubic CdS towards enhanced photocatalytic water splitting hydrogen production
复制标题
二维镍钼双金属硫化物协同改性空心立方CdS增强光催化水分解氢生产
DOI：
10.1016/j.apsusc.2019.143769
复制
发表时间：
2019-12-15
影响因子：
6.7
通讯作者：
Li, Chaorong
中科院分区：
文献类型：
--
作者：
Li, Hongli;Pan, Jiaqi;Li, Chaorong
采用连续化学沉淀法、硫化硫化和水热法制备了二维镍钼双金属硫化物协同改性的中空立方硫化镉，将硫化镉硫化得到中空立方硫化镉，然后在其表面生长二维镍钼S片层。光催化制氢性能评价表明，与单一的硫化镉相比，硫化镉/镍钼S的光催化性能有了明显的提高，提高了约80倍。电化学测试表明，类铂行为的双金属Ni-Mo-S能快速地接受和转移扩散光生电子到水中，2D超薄片层能提供足够的HER活性中心并缩短转移时间，是HER增强的主要原因，中空的纳米结构可以提高太阳能的利用率。
The 2D(two-dimension) nickel-molybdenum bimetals sulfide synergistic modified hollow cubic CdS is fabricated by the continuous chemical precipitation, vulcanized and hydrothermal methods, there, the hollow cubic CdS is vulcanized from the CdCO3 and then the 2D Ni-Mo-S lamellas grow on the surface of the CdS. Evaluated by the photocatalytic hydrogen production, the photocatalytic performance of the CdS/Ni-Mo-S exhibits an obvious enhancement of about similar to 80 folds than the single CdS. Studied by the electrochemical measurements, the main reasons for the HER(hydrogen evolution reaction) enhancement are ascribed to that the Pt-like behavior bimetals Ni-Mo-S can quickly accept and transfer-diffuse the photo-generated electrons to water, the 2D ultrathin lamellas can provide sufficient HER active sites and shorten the transferring time, and the hollow nanostructure can increase the solar utilization.