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Electrochemistry in Sustainable Resource Recycling

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Energy Sustainability".

Deadline for manuscript submissions: closed (31 October 2025) | Viewed by 1133

Special Issue Editors


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Guest Editor
Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
Interests: electrocatalysis energy conversion; pollution control chemistry; catalytic elimination of industrial nitrogen-containing wastewater; nanomaterials
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Guest Editor
College of Architecture and Environment, Sichuan University, Chengdu 610065, China
Interests: photocatalysis; advanced oxidation process; recycling of industrial nitrogen-containing wastewater

Special Issue Information

Dear Colleagues,

Electrochemistry plays a crucial role in the sustainable recycling of resources, providing energy-efficient and environmentally friendly methods for the extraction, recovery, and reuse of valuable materials. In comparison to conventional chemical and mechanical recycling methods, electrochemical recycling powered by renewable solar or wind energy is more selective and efficient, significantly minimizing the reliance on chemical reagents and reducing hazardous waste generation. This approach has garnered considerable attention in metal recycling, wastewater treatment, and electronic waste processing through methods such as electrorefining, electrowinning, and electroplating. Therefore, electrochemistry emerges as a pivotal issue for sustainable development.

The aim of this Research Topic is to publish the most recent findings and high-quality works on electrochemistry recycling of metals, inorganic nitrite/phosphorous/sulfur-containing species, organic compounds, plastics, and biomass waste, with a special focus on energy efficiency, reaction mechanisms, and practical application potential.

Topics include, but are not limited to, the following:

  • Electrochemistry recycling of metals;
  • Dynamics and thermodynamics of pyrolysis reaction in biomass boiler;
  • Electrochemistry recycling of inorganic nitrite/phosphorous/sulfur-containing species;
  • Electrochemistry recycling of organic compounds;
  • Lithium-ion battery thermal management;
  • Electrochemistry recycling of plastics and biomass waste;
  • Advanced electrocatalysts for electrocatalytic recycling.

Prof. Dr. Yi Huang
Dr. Yanbiao Shi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electrochemistry
  • resource recycling
  • sustainable development
  • electrocatalyst
  • electrocatalysis
  • metal recycling

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Published Papers (1 paper)

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Research

22 pages, 6343 KB  
Article
Sustainable Wastewater Treatment and Water Reuse via Electrochemical Advanced Oxidation of Trypan Blue Using Boron-Doped Diamond Anode: XGBoost-Based Performance Prediction
by Sevtap Tırınk
Sustainability 2025, 17(20), 9134; https://doi.org/10.3390/su17209134 - 15 Oct 2025
Viewed by 721
Abstract
Azo dyes are widely used in the textile industry due to their vibrant colors and chemical stability; however, wastewater containing these dyes poses significant environmental and health risks due to their toxic, persistent, and potentially carcinogenic properties. In this study, the treatment of [...] Read more.
Azo dyes are widely used in the textile industry due to their vibrant colors and chemical stability; however, wastewater containing these dyes poses significant environmental and health risks due to their toxic, persistent, and potentially carcinogenic properties. In this study, the treatment of wastewater containing trypan blue dye was investigated using the electrooxidation process with boron-doped diamond electrodes, and the efficiency of the process was modeled through the Extreme Gradient Boosting (XGBoost) algorithm. In the experimental phase, the effects of key operational parameters, including current density, pH, electrolysis time, and supporting electrolyte concentration, on TB dye removal efficiency were systematically evaluated. Based on the experimental data obtained, a machine learning-based XGBoost prediction model was developed, and hyperparameter optimization was performed to enhance its predictive performance. The model achieved high accuracy (R2 = 0.996 for training and 0.954 for testing) and yielded low error metrics (RMSE and MAE), confirming its reliability in predicting removal efficiency. This study presents an integrated and data-driven approach for improving the efficiency and sustainability of electrooxidation processes and offers an environmentally friendly and effective method for the treatment of azo dye-contaminated wastewater. Full article
(This article belongs to the Special Issue Electrochemistry in Sustainable Resource Recycling)
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