光催化
贵金属
催化作用
分解水
材料科学
金属
氧化还原
双金属片
化学工程
无机化学
纳米技术
化学
冶金
生物化学
工程类
作者
Meifeng Chen,Siyi Li,Simeng Zhong,Xiaosong Zhou,Yuanyuan Ge,Jin Luo,Xiaoqin Zhou,Xunfu Zhou,Yongming Zhong
标识
DOI:10.1016/j.jallcom.2023.169515
摘要
Noble metal-free photocatalysts are necessary for cost control in practical uses. To achieve photocatalytic overall water splitting, a non-noble metal photocatalyst comprising N-doped carbon-W2N (NC-W2N) anchored on Al-doped SrTiO3 (Al-SrTiO3) was created. For efficiently trapping photoelectrons and speeding the H2 evolution reaction, the metallic NC-W2N serves as a co-catalyst. As a result, for photocatalytic overall water splitting, the optimized NC-W2N/Al-SrTiO3 demonstrated a notable H2 evolution rate of 358.16 μmol h–1 g–1, which is 5.3 times than that of Al-SrTiO3, and the related AQE reached 2.57% and 0.56% at 350 and 400 nm, respectively. We expand its use in the realistic setting of natural saltwater as a practical exploration. Surprisingly, the NC-W2N/Al-SrTiO3 photocatalyst's logical design led to the observed H2 generation rate of 148 μmol h–1 g–1.
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