000168376 001__ 168376
000168376 005__ 20260204153543.0
000168376 0247_ $$2doi$$a10.1080/10643389.2025.2560432
000168376 0248_ $$2sideral$$a147837
000168376 037__ $$aART-2025-147837
000168376 041__ $$aeng
000168376 100__ $$0(orcid)0000-0002-3256-2089$$aLeal-Duaso, Alejandro
000168376 245__ $$aChloroaromatics remediation: Insights into the chemical reduction and hydrodechlorination of chlorobenzenes
000168376 260__ $$c2025
000168376 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168376 5203_ $$aChloroaromatic compounds—including not only chlorobenzenes, but alsochloroanilines, chlorophenols and others—are chemicals widely used for decades as industrial solvents, synthetic intermediates, and pesticides. However, many of these compounds are classified as persistent organic pollutants due to their biaccumulative nature, additionally having toxic and neurotoxic effects to humans and animals. Significant stocks of obsolete chloroaromatics, along with numerous heavily contaminated sites worldwide—including air, surface water, groundwater, and soil—underscore the urgent need for efficient remediation strategies. Chemical reduction has emerged as a well-stablished and effective approach for the transformation and/or valorization of chloroaromatics, particularly chlorobenzenes, into less toxic and higher-value compounds, such as cyclohexane and benzene. This approach may also yield other specific products such as methane, polyaromatics, and carbon-based nanomaterials. In this review, we provide the first comprehensive and also critical assessment of all hydrodechlorination and chemical reduction methods applied to the transformation, remediation, and valorization of chlorobenzenes. All the available literature has been analyzed in terms of practical feasibility, limitations, cost-effectiveness, and scalability. Reduction strategies are categorized by the type of reducing agent, distinguishing between stoichiometric and catalytic methods. The performance of various reductants—including metals, metal sulfides, hydrogen gas, hydrides, and water—in combination with a long series of organic and inorganic hydrogen donors (e.g. hydrocarbons, alcohols, formates, silanes, hydrazine) is thoroughly evaluated. Finally, insights into the electrochemical and photochemical reduction of chlorobenzenes in both polluted water and soil are also provided. © 2025 The Author(s). Published with license by Taylor & Francis Group, LLC.
000168376 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E37-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-125762NB-I00
000168376 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000168376 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000168376 700__ $$0(orcid)0000-0002-0136-5138$$aFraile, José M.
000168376 773__ $$g55, 21 (2025), 1628-1656$$pCrit. rev. environ. sci. technol.$$tCRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY$$x1064-3389
000168376 8564_ $$s5208560$$uhttps://zaguan.unizar.es/record/168376/files/texto_completo.pdf$$yVersión publicada
000168376 8564_ $$s1101478$$uhttps://zaguan.unizar.es/record/168376/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000168376 909CO $$ooai:zaguan.unizar.es:168376$$particulos$$pdriver
000168376 951__ $$a2026-02-04-13:14:48
000168376 980__ $$aARTICLE