Get access

Tethering Metal Ions to Photocatalyst Particulate Surfaces by Bifunctional Molecular Linkers for Efficient Hydrogen Evolution

Authors

  • Dr. Weili Yu,

    1. Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    2. School of Materials Science and Engineering, Changchun University of Science and Technology, 7989 Weixing Rd, Chaoyang, Changchun, Jilin, 130022 (PR China)
    Search for more papers by this author
  • Dr. Tayirjan Isimjan,

    Corresponding author
    1. Solar and Photovoltaics Engineering Research Center, KAUST, 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    • Tayirjan Isimjan, Solar and Photovoltaics Engineering Research Center, KAUST, 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)

      Kazuhiro Takanabe, Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)

    Search for more papers by this author
  • Dr. Silvano Del Gobbo,

    1. Solar and Photovoltaics Engineering Research Center, KAUST, 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Dr. Dalaver H. Anjum,

    1. Advanced Nanofabrication, Imaging and Characterization core lab (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Dr. Safwat Abdel-Azeim,

    1. Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Prof. Luigi Cavallo,

    1. Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Angel T. Garcia-Esparza,

    1. Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Prof. Kazunari Domen,

    1. Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
    Search for more papers by this author
  • Dr. Wei Xu,

    1. Saudi Aramco Chemicals R&D Center at KAUST, Innovation Cluster III, Thuwal, 23955-6900 (Saudi Arabia)
    Search for more papers by this author
  • Prof. Kazuhiro Takanabe

    Corresponding author
    1. Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)
    • Tayirjan Isimjan, Solar and Photovoltaics Engineering Research Center, KAUST, 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)

      Kazuhiro Takanabe, Division of Physical Sciences and Engineering, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal, 23955-6900 (Saudi Arabia)

    Search for more papers by this author

Abstract

A simple and versatile method for the preparation of photocatalyst particulates modified with effective cocatalysts is presented; the method involves the sequential soaking of photocatalyst particulates in solutions containing bifunctional organic linkers and metal ions. The modification of the particulate surfaces is a universal and reproducible method because the molecular linkers utilize strong covalent bonds, which in turn result in modified monolayer with a small but controlled quantity of metals. The photocatalysis results indicated that the CdS with likely photochemically reduced Pd and Ni, which were initially immobilized via ethanedithiol (EDT) as a linker, were highly efficient for photocatalytic hydrogen evolution from Na2S-Na2SO3-containing aqueous solutions. The method developed in this study opens a new synthesis route for the preparation of effective photocatalysts with various combinations of bifunctional linkers, metals, and photocatalyst particulate materials.

Get access to the full text of this article

Ancillary