Chinese Journal of Catalysis ›› 2025, Vol. 71: 234-245.DOI: 10.1016/S1872-2067(24)60244-5

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Simultaneous hydrogen production with photo reforming of lactic acid over MXene derived MoS2/TiO2/Ti3C2 nanowires

Seemal Mansoora, Zixu Hub, Yuxin Zhangb, Muhammad Tayyabe, Mazhar Khana, Zeeshan Akmala, Liang Zhoub,c,d,*(), Juying Leib,d, Muhammad Nasirf, Jinlong Zhanga,*()   

  1. aKey Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
    bNational Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
    cState Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
    dShanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
    eInstitute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China
    fCOMSATS Univ Islamabad, Interdisciplinary Res Ctr Biomed Mat IRCBM, Lahore Campus, Lahore 54000, Pakistan
  • Received:2024-11-14 Accepted:2024-12-20 Online:2025-04-18 Published:2025-04-13
  • Contact: * E-mail: zhouliang@ecust.edu.cn (L. Zhou),jlzhang@ecust.edu.cn (J. Zhang).
  • Supported by:
    National Key Research and Development Program of China(2022YFB3803600);National Key Research and Development Program of China(2022YFE0107900);National Natural Science Foundation of China(22476050);National Natural Science Foundation of China(21972040);Innovation Program of Shanghai Municipal Education Commission(2021-01-07-00-02-E00106);Science and Technology Commission of Shanghai Municipality(22230780200);Science and Technology Commission of Shanghai Municipality(20DZ2250400);Fundamental Research Funds for the Central Universities(222201717003);Open Project of State Key Laboratory of Urban Water Resource and Environment(QA202319);Chenguang Program of Shanghai Education Development Foundation, and the Shanghai Municipal Education Commission(23CGA40)

Abstract:

Developing efficient photocatalysts to address collaborative energy and environmental crises still faces significant challenges. In this report, we present a highly efficient MXene-based photocatalyst, which is combined with MoS2 nano patches and TiO2/Ti3C2 (TTC) nanowires through hydrothermal treatment. Of all the composites tested, the optimized photocatalyst gave a remarkable H2 and revolving polylactic acid (PLA) into pyruvic acid (PA). Achieving a remarkable H2 evolution rate of 637.1 and 243.2 μmol g−1 h−1, in the presence of TEOA and PLA as a sacrificial reagent under UV-vis (λ ≥ 365 nm) light irradiation. The improved photocatalytic activity is a result of the combination of dual cocatalyst on the surface of TTC photocatalyst, which create an ideal synergistic effect for the generation of PA and the production of H2 simultaneously. The MoS2TiO2/Ti3C2 (MTT) composite can generate more photoexcited charge carriers, leading to the generation of more active radicals, which may enhance the system's photocatalytic activity. This work aims at demonstrating its future significance and guide the scientific community towards a more efficient approach to commercializing H2 through photocatalysis.

Key words: Photo reforming, Polylactic acid, Hydrogen evolution, Lactic acid, Pyruvic acid