光催化
异质结
八面体
材料科学
吸附
热液循环
化学工程
多孔性
分子
纳米技术
比表面积
催化作用
化学
有机化学
复合材料
晶体结构
光电子学
工程类
作者
Long-fei Hong,Rui‐tang Guo,Zhongwei Zhang,Ye Yuan,Xiang-yin Ji,Zhidong Lin,Weiguo Pan
标识
DOI:10.1016/j.jcou.2021.101650
摘要
Solar-driven carbon dioxide (CO2) photoreduction has been considered as an environmentally friendly and promising strategy to utilize solar energy and mitigate the impact of greenhouse effect. Designing novel cost-effective photocatalytic system with high CO2 molecules adsorption activity is an efficient avenue to enhance CO2 photoreduction performance. Herein, a series of NH2-UiO-66/CdIn2S4 (NU66/CIS) photocatalysts with different NU66 contents were constructed via facile in-situ hydrothermal route and displayed graceful morphology. According to a series of characterization results, porous octahedron NU66 were deeply anchored on flowerlike 3D-microspheres CIS, and a part of the small-sized CIS were evenly dispersed on the surface of NU66. Without any sacrificial agent, the optimized 8% NU66/CIS heterojunctions still exhibited the satisfactory photocatalytic efficiency for CO2 conversion, whose CO and CH4 yields reached up to 11.24 μ mol g−1 h−1 and 2.92 μ mol g−1 h−1, respectively, which were 2.87 and 3.31 folds higher than that of pristine CIS. The remarkably boosted activity of NU66/CIS was originated from the high specific surface area and the formation of heterostructure between the well-dispersed NU66 and CIS, which could promote the electron transfer during CO2 photocatalytic reduction.
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