DataVXACS Materials LettersPaper
journal article·2025-02-03

Surface and Defect Engineering Coupling of Charge Shuttle and Redox Site in Cs3Bi2Br9/g-C3N4 for Efficient Photocatalytic C(sp3)–H Bond Activation

Chunhua Wang, Yang Ding, Zhirun Xie, Yannan Wang, Yang Li, Ning Han, Qili Xu, Yuekun Lai, Michael K.H. Leung, Biao Liu, Bao-Lian Su, Yun Hau Ng

ACS Materials Letters· Volume 7· Issue 2
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Source abstract

Abstract

Solar-driven organic synthesis using halide perovskites (HPs) has garnered much attention, but their unsatisfactory conversion efficiency limits further applications. Addressing charge dynamics and redox site issues is a straightforward approach to improving performance. Herein, we report the synergistic charge separation and active site modulation in lead-free Cs 3 Bi 2 Br 9 HP using N-vacancy reticular g-C 3 N 4 nanosheet for selective C(sp 3 )–H bond activation. This regulation exhibits a strong interfacial interaction, enabling effective charge transfer with more active sites. Theoretical calculations and experimental characterizations detailed enhanced charge separation and reduced energy barriers for surface photoredox reactions. When applied to toluene oxidation under simulated solar light, the optimized photocatalyst achieves a total conversion rate of 6865.3 μmol g –1 h –1 and an outstanding benzaldehyde selectivity of over 92%, outperforming most reported HP-based photocatalysts. This work offers a universal strategy for developing efficient HP photocatalysts for solar-to-chemical energy conversion.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Sulfur-Based Synthesis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Energy and Environment

City University of Hong Kong

College of Materials and Environmental Engineering

Hangzhou Dianzi University

Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, 3001 Leuven, Belgium

Department of Chemistry, Center of Super-Diamond and Advanced Films (COSDAF)

College of Chemical Engineering

Fuzhou University

Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics

Central South University

Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 rue de Bruxelles, B-5000 Namur, Belgium

Chemical Engineering Program, Physical Science and Engineering (PSE) Division

King Abdullah University of Science and Technology (KAUST)

Funding

Research Grants Council, University Grants Committee · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · NSFC/RGC Joint Research Scheme

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