公开(公告)号：US11351532B2

公开(公告)日：2022-06-07

申请号：US16610028

申请日：2018-07-30

Applicant: SUZHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Zhigang Chen ,  Feng Chen ,  Junchao Qian ,  Chengbao Liu ,  Chencheng Wang

IPC: B01J37/02 ,  C25B11/049 ,  C25B1/55 ,  B01J6/00 ,  B01J21/18 ,  B01J27/051 ,  B01J35/00 ,  C01B3/04 ,  C25B1/04

Abstract: The present invention provides a preparation method of a photocatalytic composite material, and relates to the field of catalyst technologies. The preparation method provided in the present invention includes the following steps: (1) subjecting plant leaves to soaking pretreatment to obtain template biomass; (2) mixing a molybdenum source-sulfur source aqueous solution with the template biomass obtained in step (1) and conducting impregnation to obtain a composite material precursor; and (3) calcining the composite material precursor obtained in step (2) to obtain the photocatalytic composite material. The photocatalytic composite material in the present invention includes acicular molybdenum sulfide and biomass carbon, the acicular molybdenum sulfide is loaded to a surface of the flake carbon, the mass content of the biomass carbon is 70% to 90%, and the mass content of the molybdenum sulfide is 10% to 30%. Performance of photocatalytic hydrogen production of the photocatalytic composite material in the present invention is better than that of a pure molybdenum sulfide material and has excellent photocorrosion resistance, and hydrogen production efficiency is reduced by only approximately 10% after three cycles.