J. Mater. Sci. Technol. ›› 2024, Vol. 183: 23-31.DOI: 10.1016/j.jmst.2023.09.049

• Research Article • Previous Articles     Next Articles

Flower-like superstructure of boron carbon nitride nanosheets with adjustable band gaps for photocatalytic hydrogen peroxide production

Dehong Yanga,1, Yang Lia,1, Ruihua Chena,b, Xiangjian Wanga, Zhi Lib, Tao Xingb, Lei Weic, Sheng Xuc, Pengcheng Daia,*, Mingbo Wua,*   

  1. aCollege of New Energy, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China;
    bNational Engineering Research Center of Coal Gasification and Coal-based Advanced Materials, Shandong Energy Group Co., Ltd., Jining 273500, China;
    cQinghai Salt Lake Industry Co., Ltd., Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai 850099, China
  • Received:2023-07-05 Revised:2023-09-11 Accepted:2023-09-23 Published:2024-06-01 Online:2023-11-25
  • Contact: * E-mail addresses: dpcapple@upc.edu.cn (P. Dai), wumb@upc.edu.cn (M. Wu).
  • About author:1These authors contributed equally to this work.

Abstract: The self-assembly of two-dimensional (2D) semiconductor nanosheets into three-dimensional (3D) ordered superstructures represents an ingenious way to avoid aggregation, expose massive available active sites and benefit the mass transfer, which maximizes the advantages of the 2D nanostructures in photocatalysis. Herein, a flower-like superstructure of ternary semiconducting boron carbon nitride nanosheets (FS-BCNNSs) was synthesized through the morphology-preserved thermal transformation of a flower-like superstructure of boron-containing metal-organic framework nanosheets (FS-MOFNSs). Taking advantage of this functional superstructure, FS-BCNNSs was employed for the pioneering application in the field of photocatalytic hydrogen peroxide (H2O2) production and exhibited excellent photocatalytic performance, yielding an impressive rate of 1415.9 μmol g-1 h-1 for the production of H2O2. The results of this work offer not just a promising catalyst for photocatalytic H2O2 production but also a facile strategy to fabricate unique superstructures constructed from 2D nanosheets for catalysis, energy conversion, and other related fields.

Key words: Photocatalysis, Boron carbon nitride, Flower-like superstructure, Metal-organic framework, Hydrogen peroxide production