J. Mater. Sci. Technol. ›› 2026, Vol. 251: 135-148.DOI: 10.1016/j.jmst.2025.07.005

• Research Article • Previous Articles     Next Articles

Atomic-coherent covalent heterointerface enables full-spectrum photocatalytic H2 evolution coupled with selective organic oxidation

Yuxin Wanga,1, Shuhan Suna,1, Qianmin Fana, Nikolay Sirotkinb, Alexander Agafonovb, Huayue Zhuc, Yuan Tengd, Binbin Yua,*, Guijie Liange,*, Xianqiang Xionga,*   

  1. aZhejiang Key Laboratory for Island Green Energy and New Materials, Taizhou University, Taizhou 318000, China;
    bG. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo 153045, Russia;
    cInstitute of Environmental Engineering Technology, Taizhou University, Taizhou 318000, China;
    dCollege of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
    eHubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441000, China
  • Received:2025-05-08 Revised:2025-07-06 Accepted:2025-07-06 Published:2026-04-20 Online:2026-04-16
  • Contact: * E-mail addresses: yubinbin2004@126.com (B. Yu), Guijie-liang@hbuas.edu.cn (G. Liang), 11337061@zju.edu.cn (X. Xiong).
  • About author:1These authors contributed equally to this work.

Abstract: Photocatalytic H2 evolution coupled with selective benzyl alcohol oxidation represents a sustainable strategy for simultaneous energy storage and chemical production, yet its efficiency is fundamentally limited by interfacial charge dynamics and insufficient light utilization. We report a breakthrough in dual-functional photocatalysis through an atomic-function level engineered ZnIn2S4/ZnCo2O4 heterojunction with three key innovations: (1) atomically coherent interface (1.64 % lattice mismatch) via Zn-S-Zn covalent bridges, (2) strong built-in electric field for charge separation, and (3) ZnCo2O4-mediated photothermal NIR harvesting. This synergistic design achieves record-breaking performance (92.7 mmol g-1 h-1 H2 + 72.9 mmol g-1 h-1 benzaldehyde) by simultaneously solving three fundamental limitations in conventional systems: charge recombination, narrow light absorption, and slow kinetics. Our work establishes new principles for solar-driven chemical synthesis through interfacial atomic control coupled with photothermal engineering.

Key words: Lattice-matched heterojunction, Photothermal photocatalysis, ZnIn2S4, ZnCo2O4, Solar-to-chemical conversion