文献类型：期刊文献

英文题名：

Constructing hierarchical ZnIn2S4/g-C3N4 S-scheme heterojunction for boosted CO2 photoreduction performance

作者：Li, Lingling[1];Ma, Dekun[2];Xu, Quanlong[3];Huang, Shaoming[1]

机构：[1]Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China;[2]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China;[3]Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Peoples R China

年份：2022

卷号：437

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：SCI-EXPANDED(收录号：WOS:000779663000005)、、WOS

基金：Acknowledgement The authors gratefully acknowledge financial support from the Na-tional Natural Science of China (51920105004, 51902060) , and the Guangdong Key Laboratory of Low Dimensional Materials and Energy Storage Devices (20195010002) .

语种：英文

外文关键词：CO2 photoreduction; & nbsp;S-scheme; & nbsp;ZnIn2S4 & nbsp;; & nbsp;Tubular g-C3N4 & nbsp;; In situ XPS

外文摘要：Tubular graphitic carbon nitride (g-C3N4) photocatalyst has received considerable attention in solar to chemical energy conversion due to its appealing intrinsic photoelectrical properties and the favorable geometric configuration. However, it still suffers from severe charge recombination, which causes moderate photocatalytic performance. Herein, ZnIn2S4 nanosheets modified hexagonal g-C3N4 tubes (ZIS/HCNT) were fabricated through an in situ growth approach. By rational construction of large contact area and strong interfacial interaction, an effective Step like-scheme (S-scheme) charge transfer mode was established over ZIS/HCNT, which was confirmed by the in situ X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR) analysis. Benefited from the facilitated charge separation efficiency and remained strong redox abilities, ZIS/ HCNT exhibited significantly improved photocatalytic conversion rate of CO2 to CO (883 mu mol h(-1) g(-1)), which was about 13 and 2.4 times higher than that of HCNT and ZIS, respectively. This work provides a paradigm of upgrading photocatalytic CO2 reduction through a rational structural design to regulate charge transfer.