Construction of NiO/g-C3N4 p-n heterojunctions for enhanced photocatalytic CO2 reduction
作者:Linxia Wang、Yali Dong、Jiayan Zhang、Feifei Tao、Jingjing Xu
DOI:10.1016/j.jssc.2022.122878
日期:2022.4
which confirmed the being of the p-n junction between NiO nanosheets and g-C3N4 nanowires. The improved photocatalytic activities of CO2 reduction over NiO/g-C3N4 can come from the broadened light response range and the formation of the p-n junction that could deter the rapid recombination of electrons and holes. The possible photocatalytic mechanism of CO2 reduction reaction has been presented. Moreover
通过光催化减少作为燃料的二氧化碳(CO 2)是解决化石燃料危机和温室效应问题的有效方法之一。在这里,由NiO纳米片和gC 3 N 4纳米线组成的新型pn异质结已被有效地大规模制造,用于将CO 2光催化转化为CO和CH 4。对NiO/gC 3 N 4的形貌、结构和组成进行了表征,证实了NiO纳米片与gC 3 N 4纳米线之间存在pn结。在 NiO/gC 上提高 CO 2还原的光催化活性3 N 4可以来自加宽的光响应范围和可以阻止电子和空穴快速复合的pn结的形成。提出了CO 2还原反应可能的光催化机理。此外,新型NiO/gC 3 N 4光催化剂表现出相当大的CO 2还原稳定性。