The 2D RGO-NiS2 dual co-catalyst synergistic modified g-C3N4 aerogel towards enhanced photocatalytic hydrogen production
The 2D RGO-NiS2 dual co-catalyst synergistic modified g-C3N4 aerogel towards enhanced photocatalytic hydrogen production
复制标题
二维RGO-NiS2双助催化剂协同改性g-C3N4气凝胶可增强光催化产氢
DOI：
10.1016/j.ijhydene.2019.05.242
复制
发表时间：
2019-07-26
影响因子：
7.2
通讯作者：
Li, Chaorong
中科院分区：
文献类型：
--
作者：
Pan, Jiaqi;Wang, Beibei;Li, Chaorong
采用连续热氧化刻蚀-水热法-冷冻干燥工艺合成二维RGO-NiS 2双助催化剂协同改性g-C3 N4纳米片气凝胶。扫描电子显微镜（SEM）、X射线衍射（XRD）、透射电子显微镜（TEM）和X射线光电子能谱（XPS）分析结果表明，RGO-NiS 2双助催化剂成功地引入到气凝胶体系中。RGO-NiS 2协同改性g-C3 N4气凝胶的光催化活性比单纯的g-C3 N4气凝胶提高了67倍。进一步研究了光催化制氢的过程和机理，认为RGO-NiS 2双助催化剂协同改性提高了光催化制氢效率，包括NiS 2的类Pt行为和RGO的高电导率和大比表面积。(C)2019年氢能出版有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The two-dimension RGO (reduced graphene oxide)-NiS2 dual co-catalyst synergistic modified g-C3N4 nanosheets aerogel is synthesized via the continuous thermal oxidation etching-hydrothermal method-freeze drying process. The results of scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) imply that the RGO-NiS2 dual co-catalyst is introduced into the aerogel system successfully. The photocatalytic activity of the RGO-NiS2 synergistic modified g-C3N4 aerogel remarkably exhibits an enhancement of 67 times than that of simplicial g-C3N4. Further, the photocatalytic process and the mechanism of the photocatalytic hydrogen production enhancement are studied, which is ascribed to RGO-NiS2 dual co-catalyst synergistic modification, including the Pt-like behavior of the NiS2 and the high conductivity and large specific surface area of the RGO. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.