Insight into anti-corrosion mechanism of copper in 0.5 M sulfuric acid solution via microwave-assisted synthesis of carbon quantum dots as novel inhibitors

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI:10.1016/j.susmat.2025.e01305

Bochuan Tan , Yan Liu , Wenting Zhao , Zhili Gong , Xin Li , Wenpo Li , Xianghong Li , Lei Guo , Wenyan Zhang , Shijie Zhao , Riadh Marzouki , Qingwei Dai , Xi Chen

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Abstract

This study presents the development of a domestic, microwave-facilitated method for synthesizing carbon quantum dots (W-CDs), utilizing waste acorn caps and thiourea as dual precursors for nitrogen and sulfur doping. The corrosion inhibiting capability of W-CDs in 0.5 mol/L sulfuric acid solution towards copper was assessed, showcasing remarkable inhibition efficiencies of 98.89 %, 98.71 %, and 98.42 % at 298 K, 308 K, and 318 K respectively, when used at a concentration of 200 mg/L. The thermodynamic data of the adsorption process are discussed using the Arrhenius formula and the transition state equation. The adsorption of W-CDs onto copper was found to stem from a synergistic interplay of physical and chemical forces, consistent with the theoretical framework provided by the Langmuir adsorption model.

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.