Noble-Metal-Free NiS/C3N4 for Efficient Photocatalytic Hydrogen Evolution from Water

Authors

  • Jindui Hong,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
    Search for more papers by this author
  • Dr. Yongsheng Wang,

    1. School of Mechanical & Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 (Singapore)
    Search for more papers by this author
  • Dr. Yabo Wang,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
    Search for more papers by this author
  • Dr. Wei Zhang,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
    Search for more papers by this author
  • Prof. Rong Xu

    Corresponding author
    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
    • School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553

    Search for more papers by this author

Abstract

A NiS/C3N4 photocatalyst containing earth-abundant elements only was constructed by means of a simple hydrothermal method. This photocatalyst shows efficient hydrogen evolution (48.2 μmol h−1) under visible light when using triethanolamine as a sacrificial reagent. The optimal loading of 1.1 wt % NiS on C3N4 as a cocatalyst can enhance the H2 production by about 250 times compared with the native C3N4. The highest apparent quantum efficiency of 1.9 % was recorded at 440 nm.

Ancillary