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    T-Shaped Fe-Based Multistoichiometry Stereoscopic Composite Catalyst with Ultrahigh Activity toward Fenton-like Water Treatment, Synthesized via Graphene-Controlled Growth

    Dongting Yue1,*, Tianbiao Zeng2,*, Yunzhang Li1,*, Jiahong Lin1, Jiewei Xiao1, Xing Liu1, Youjia Ma1, Mengxiang Zhu1, Tao Ding1 et al.

    Zhengyang Liu1, Xiushen Ye3, Zhongjie Zhu4, Kan Li5, Yihong Ding2,†, and Guosheng Shi1,3,‡

    • 1Shanghai Key Laboratory of Atomic Control and Application of Inorganic 2D Supermaterials, School of Environmental and Chemical Engineering, Shanghai University, NO. 99 Shangda Road, Baoshan District, Shanghai 200444, People’s Republic of China
    • 2Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, People’s Republic of China
    • 3Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, Qinghai 810008, People’s Republic of China
    • 4Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People’s Republic of China
    • 5School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, People’s Republic of China

    • *These authors contributed equally to this work.
    • †Contact author: yhdd@wzu.edu.cn
    • ‡Contact author: gsshi@shu.edu.cn

    Phys. Rev. Lett. 135, 038001 – Published 16 July, 2025

    DOI: https://doi.org/10.1103/vdxk-lvnt

    Abstract

    We report an unusual T-shaped Fe-based multistoichiometry stereoscopic composite catalyst with multifunctional active sites, fabricated via a one-step graphene-controlled all-solid-state synthesis. This tailored catalyst can improve all three catalysis processes of H2O2 adsorption, peroxide bond activation, and HO• desorption, resulting in a novel catalytic framework where the two-dimensional (2D) Fe2O3 nanosheets optimize H2O2 adsorption, and the 2D FeOCl nanosheets vertically grown on the Fe2O3 surface can facilitate both the generation and desorption of HO•.

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