Department of Chemistry & Biochemistry and Science of Advanced Materials Program, Central Michigan University , Mount Pleasant, Michigan 48859, United States.
ACS Appl Mater Interfaces. 2017 Apr 12;9(14):12427-12435. doi: 10.1021/acsami.7b00370. Epub 2017 Mar 28.
Novel g-CN/CoO nanocomposite application for photocatalytic H evolution were designed and fabricated for the first time in this work. The structure and morphology of g-CN/CoO were investigated by a wide range of characterization methods. The obtained g-CN/CoO composites exhibited more-efficient utilization of solar energy than pure g-CN did, resulting in higher photocatalytic activity for H evolution. The optimum photoactivity in H evolution under visible-light irradiation for g-CN/CoO composites with a CoO mass content of 0.5 wt % (651.3 μmol h g) was up to 3 times as high as that of pure g-CN (220.16 μmol h g). The remarkably increased photocatalytic performance of g-CN/CoO composites was mainly attributed to the synergistic effect of the junction or interface formed between g-CN and CoO.
本工作首次设计并制备了用于光催化 H 2 析出的新型 g-C 3 N 4 /CoO 纳米复合材料。通过多种表征手段研究了 g-C 3 N 4 /CoO 的结构和形貌。与纯 g-C 3 N 4 相比，所获得的 g-C 3 N 4 /CoO 复合材料表现出更高效地利用太阳能，从而具有更高的光催化 H 2 析出活性。在可见光照射下，CoO 质量含量为 0.5wt%（651.3 μmol h g -1 ）的 g-C 3 N 4 /CoO 复合材料的光催化析氢活性最高，可达纯 g-C 3 N 4 （220.16 μmol h g -1 ）的 3 倍。g-C 3 N 4 /CoO 复合材料显著提高的光催化性能主要归因于 g-C 3 N 4 和 CoO 之间形成的结或界面的协同效应。
