Green and one-pot synthesis of Co(II) citrate complex nanoparticles/graphene oxide nanocomposites towards photocatalytic hydrogen evolution

被引：4

作者：

Asghari, Alireza ^{[1
]}

Keshipour, Sajjad ^{[1
]}

机构：

[1] Urmia Univ, Fac Chem, Dept Nanotechnol, Orumiyeh, Iran

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 89期

关键词：

Water splitting; Cobalt -citrate complex; Graphene oxide; Photocatalysis; Hydrogen generation; REDUCED GRAPHENE OXIDE; CITRIC-ACID; HOMOGENEOUS CATALYSTS; COBALT COMPLEXES; METAL-COMPLEX; SURFACE-AREA; QUANTUM DOTS; EFFICIENT; GENERATION; POROSITY;

D O I：

10.1016/j.ijhydene.2023.05.291

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herein, Co(II) citrate complex nanoparticles (CoC NPs) were synthesized by a simple protocol and were subsequently immobilized on GO sheets to provide a binary nanocomposite termed as CoC/GO. By conducting direct pyrolysis of citric acid (CA) in the presence of CoC NPs, the self-condensation reaction of CA facilitated in situ construction of the GO support and concurrent grafting of complex NPs onto its as-developing surface. The last step was to investigate the feasibility of using the resulting CoC/GO nanocomposites for visible light-induced water splitting, with the end goal of producing hydrogen gas. At room temperature and without the addition of any exogenous chemicals, the catalytic activity of CoC/GO was boosted to a maximum turnover frequency of 173.99 h-1. This study presents an innovative, simple, cost-efficient, and eco-friendly method for surface modification of GO sheets, which may open up new avenues for the development of versatile GO-based nanomaterials capable of performing optimally in every given scenario.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：34750 / 34765

页数：16

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