TY - JOUR
T1 - Synergistic interfacial engineering of a S-scheme ZnO/In2S3 photocatalyst with S−O covalent bonds
T2 - A dual-functional advancement for tetracycline hydrochloride degradation and H2 evolution
AU - Ai, Yating
AU - Hu, Jiajie
AU - Xiong, Xianqiang
AU - Carabineiro, Sónia A. C.
AU - Li, Yuesheng
AU - Sirotkin, Nikolay
AU - Agafonov, Alexander
AU - Lv, Kangle
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/CEEC INST 2018/CEECINST%2F00102%2F2018%2FCP1567%2FCT0026/PT#
info:eu-repo/grantAgreement/FCT/Concurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)/LA%2FP%2F0008%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT#
The present study received financial support from the National Natural Science Foundation of China (22102112 & 51672312), Hubei Provincial Natural Science Foundation and Huangshi of China (2022CFD001), the Domestic Visiting Scholar \u201CTeacher Professional Development Project\u201D (FX2023052), the Zhejiang Provincial Natural Science Foundation of China (LQ21B030003), the \u201CPioneer\u201D and \u201CLeading Goose\u201D R&D Program of Zhejiang (2023C03135), the Fundamental Research Funds for the Central Universities of South-Central Minzu University (CZP22001 & CZZ21012).
Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/9/15
Y1 - 2024/9/15
N2 - Efficient interfacial charge transfer and robust interface interactions are crucial to achieve superior spatial separation of carriers and develop advanced heterogeneous photocatalysts. This study describes the synthesis of a novel S-scheme heterojunction of ZnO/In2S3, with S−O covalent bonds, achieved through a hydrothermal method. The optimized heterojunction shows exceptional photocatalytic activity, achieving a H2 generation rate of 2488 μmol g−1 h−1 and a degradation efficiency of 86 % for tetracycline hydrochloride (TCH) within 2 h. These values surpass those of In2S3 alone by 35 and 1.4 times, respectively. Various techniques, including electron spin resonance, X-ray photoelectron spectroscopy, Kelvin probe force microscopy and density functional theory calculations confirm the S-scheme heterojunction. The establishment of a chemical S−O bond between In2S3 and ZnO facilitates an atomic level interfacial pathway, enabling efficient transportation of interfacial electrons.
AB - Efficient interfacial charge transfer and robust interface interactions are crucial to achieve superior spatial separation of carriers and develop advanced heterogeneous photocatalysts. This study describes the synthesis of a novel S-scheme heterojunction of ZnO/In2S3, with S−O covalent bonds, achieved through a hydrothermal method. The optimized heterojunction shows exceptional photocatalytic activity, achieving a H2 generation rate of 2488 μmol g−1 h−1 and a degradation efficiency of 86 % for tetracycline hydrochloride (TCH) within 2 h. These values surpass those of In2S3 alone by 35 and 1.4 times, respectively. Various techniques, including electron spin resonance, X-ray photoelectron spectroscopy, Kelvin probe force microscopy and density functional theory calculations confirm the S-scheme heterojunction. The establishment of a chemical S−O bond between In2S3 and ZnO facilitates an atomic level interfacial pathway, enabling efficient transportation of interfacial electrons.
KW - InS
KW - Interface interactions
KW - Photocatalysis
KW - S-scheme heterojunction
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=85190809998&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2024.124098
DO - 10.1016/j.apcatb.2024.124098
M3 - Article
AN - SCOPUS:85190809998
SN - 0926-3373
VL - 353
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 124098
ER -