A NiCo2O4 nanowire arrays decorated carbon felt cathode for synergistic treatment of complex uranium-organic wastewater in a self-driven solar coupling system

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-02-24 DOI:10.1016/j.seppur.2025.132257

Guolong Tang, Qingyan Zhang, Yuhan Cao, Jiachen Wang, Yaqian Zhang, Qingyi Zeng

{"title":"A NiCo2O4 nanowire arrays decorated carbon felt cathode for synergistic treatment of complex uranium-organic wastewater in a self-driven solar coupling system","authors":"Guolong Tang, Qingyan Zhang, Yuhan Cao, Jiachen Wang, Yaqian Zhang, Qingyi Zeng","doi":"10.1016/j.seppur.2025.132257","DOIUrl":null,"url":null,"abstract":"The expansion of nuclear energy necessitates advances uranium recovery from radioactive wastewater containing persistent UO22+-organic complexes. We present a solar-driven coupling system (SSCS) integrating the TiO2 nanorod (TNR) photoanodes with the NiCo2O4 nanowire-decorated carbon felt cathode (NiCo2O4-CF), enabling simultaneous uranium removal and organic pollutant degradation. The SSCS enhances photo-generated charge excitation with providing a bias potential, which drives rapid electron transfer from organics to UO22+ adsorption and reduction sites. The NiCo2O4-CF cathode maintains excellent efficiency of 97.8 % and 98.0 % for uranium reduction and Rhodamine B (RhB) degradation, respectively, through 20 cycles in complex wastewater matrices. This study proposes a nanostructure-engineered electrode with excellent electrochemical performance, offering a straightforward, resourceful and sustainable solution for uranium-laden radioactive wastewater remediation that synergizes environmental decontamination with nuclear resource recovery within circular economy frameworks.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"174 1","pages":""},"PeriodicalIF":8.1000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2025.132257","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The expansion of nuclear energy necessitates advances uranium recovery from radioactive wastewater containing persistent UO₂²⁺-organic complexes. We present a solar-driven coupling system (SSCS) integrating the TiO₂ nanorod (TNR) photoanodes with the NiCo₂O₄ nanowire-decorated carbon felt cathode (NiCo₂O₄-CF), enabling simultaneous uranium removal and organic pollutant degradation. The SSCS enhances photo-generated charge excitation with providing a bias potential, which drives rapid electron transfer from organics to UO₂²⁺ adsorption and reduction sites. The NiCo₂O₄-CF cathode maintains excellent efficiency of 97.8 % and 98.0 % for uranium reduction and Rhodamine B (RhB) degradation, respectively, through 20 cycles in complex wastewater matrices. This study proposes a nanostructure-engineered electrode with excellent electrochemical performance, offering a straightforward, resourceful and sustainable solution for uranium-laden radioactive wastewater remediation that synergizes environmental decontamination with nuclear resource recovery within circular economy frameworks.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.