Gel-like Ag-Dicyandiamide Metal-Organic Supramolecular Network-Derived g-C3N4for Photocatalytic Hydrogen Generation
Journal
ACS Sustainable Chemistry and Engineering
Journal Volume
10
Journal Issue
26
Date Issued
2022-07-04
Author(s)
Abstract
H2could be the most promising, sustainable, and alternative energy source in the foreseeable future. In this study, a gel-like Ag-containing dicyandiamide metal-organic supramolecular network (MOSN) has been prepared as a precursor to synthesize g-C3N4for photocatalytic H2evolution under light irradiation. Ag can be well incorporated into the g-C3N4structure by using Ag-containing dicyandiamide MOSN as a precursor to produce a metal-semiconductor interface, thereby promoting the charge separation (evidenced by electrochemical impedance spectroscopy and photocurrent density measurement) and ultraviolet-visible light absorption (UV-vis absorption spectroscopy) and photocatalytic activity for H2evolution. g-C3N4derived from the Ag-containing dicyandiamide MOSN exhibits high H2evolution after Pt loadings under light irradiation (λ > 400, 450, and 550 nm) in the presence of triethanolamine. In summary, g-C3N4synthesized from Ag-containing dicyandiamide supramolecules can be used as an effective photocatalyst for H2production.
Subjects
graphitic carbon nitride | hydrogen evolution | metal-organic supramolecular structure | photocatalysis | visible light
Publisher
AMER CHEMICAL SOC
Type
journal article