Constructing Schottky junctions via Pd nanosheets on DUT-67 surfaces to accelerate charge transfer

The separation, transfer and recombination of charge often affect the rate of photocatalytic reduction of CO2. Schottky junctions can promote the rapid separation of space charge. Therefore, in this paper, Pd nanosheets were grown on the surface of DUT-67 by a hydrothermal method, and a Schottky junction was constructed between DUT-67 and Pd. Under the action of the Schottky junction, the CO yield of 0.3-Pd/DUT-67 reached 12.15 lmol/g/h, which was 17 times higher than that of DUT-67. Efficient charge transfer was demonstrated in photochemical experiments. The large specific surface area and the increased light utilization rate also contributed to the increase in the CO2 reduction efficiency. In addition, the mechanism of Pd/DUT-67 photocatalytic reduction of CO2 was proposed. (C) 2021 Elsevier Inc. All rights reserved.

Automated summary

This paper investigates the photocatalytic reduction of CO2 using Pd nanosheets grown on the surface of DUT-67 to form a Schottky junction. The Schottky junction promotes efficient charge transfer, leading to a significantly higher CO yield compared to DUT-67. Additionally, the large specific surface area and improved light utilization rate contribute to the enhanced CO2 reduction efficiency.