Cs3Sb2Br9/Sb-C3N4Z型异质结上Sb-N电荷转移桥促进光催化二氧化碳还原（英文）<iclass="icon-zqcb"></i>

被引：0
|
作者：
王皓坤 [1 ]
张梦然 [1 ]
苏克 [1 ]
刘兆磊 [1 ]
穆延飞 [2 ]
白福全 [3 ]
张敏 [1 ]
鲁统部 [1 ]
机构：
[1] MOE International Joint Laboratory of Materials Microstructure,Institute for New Energy Materials and Low Carbon Technologies,School of Materials Science and Engineering,Tianjin University of Technology
[2] School of Chemistry and Chemical Engineering,Yangzhou University
[3] Institute of Theoretical Chemistry,College of Chemistry,Jilin
来源：
Science China(Materials) | 2024年 / 67卷 / 10期
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D O I：
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中图分类号：
O643.36 [催化剂]; O644.1 [光化学]; X701 [废气的处理与利用];
学科分类号：
摘要：
开发高效的异质结光催化剂,用于二氧化碳还原耦合水氧化反应仍然具有挑战性,其关键在于建立高效的界面电荷传输通道.本文报道了一种基于Sb原子锚定的原位生长Cs3Sb2Br9/Sb-C3N4 Z型异质结的方法.实验和理论计算表明,在C3N4引入Sb锚点,可在Cs3Sb2Br9和C3N4之间形成了Sb-N电荷转移桥,促进了Cs3Sb2Br9/Sb-C3N4的界面电荷传输.此外,它还可以诱导Cs3Sb2Br9和C3N4之间的界面电荷传输路径从Ⅱ型转变为Z型,实现了催化位点从C3N4到Cs3Sb2Br9的转移,从而促进了二氧化碳的活化.Cs3Sb2Br9/Sb-C3N4在模拟太阳光照射(100 mW·cm-2)下,以水为电子源,实现了高效的二氧化碳到一氧化碳的光催化转化,产率为198.4μmol·g-1·h-1,比没有Sb锚点的对照催化剂（Cs3Sb2Br9/gC3N4）和纯C3N4分别高出近3倍和9倍.这项工作为设计高效异质结光催化剂提供了新的替代方案.
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页码：3176 / 3184
页数：9
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