{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T19:05:03Z","timestamp":1789412703821,"version":"build-2803163510"},"reference-count":64,"publisher":"Wiley","issue":"17","license":[{"start":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T00:00:00Z","timestamp":1787961600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T00:00:00Z","timestamp":1787961600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["aces.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry \u0097 An Asian Journal"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Novel Cu\/Cu\n                    <jats:sub>2<\/jats:sub>\n                    O\u2010nanoparticles have been synthesized by the most economical electrochemical method utilizing metallic waste. 4\u2010NP is a toxic pollutant affecting both animal and plant kingdom, necessitating its elimination from environment. This study demonstrates that the prepared nano\u2010catalysts efficiently catalyse the reduction of 4\u2010nitrophenol (4\u2010NP) to 4\u2010aminophenol (4\u2010AP) at room temperature under light condition. Further, the reduction process generates amine derivatives, which are intermediates in many industrial processes. This manuscript adheres to the principles of the circular economy by generating nanoparticles through the repurposing of metallic waste discarded by both industry and domestic users. Using scrapped copper from discarded air conditioner (AC) copper tubes as electrodes, we employed an electrochemical technique to develop Cu\/Cu\n                    <jats:sub>2<\/jats:sub>\n                    O nanoparticles. The synthesized nanoparticles were characterized using field emission scanning electron microscopy (FE\u2010SEM), transmission electron (TEM), EDX spectroscopy, powder x\u2010ray diffraction (P\u2010XRD), Fourier transformation infrared (FTIR) spectroscopy, x\u2010ray photoelectron spectroscopy (XPS), Raman spectroscopy, cyclic voltammetry (CV), and Brunauer\u2013Emmett\u2013Teller (BET) analysis. Our study confirms 99% conversion of harmful 4\u2010NP to 4\u2010AP in a rapid reaction time of 5 min. Synthesized nanoparticles can be reused up to four times without losing catalytic activity. UV\u2013vis spectroscopy demonstrated that reduction follows pseudo\u2010second\u2010order kinetics and adsorption follows Freundlich isotherm model.\n                  <\/jats:p>","DOI":"10.1002\/asia.70970","type":"journal-article","created":{"date-parts":[[2026,8,30]],"date-time":"2026-08-30T03:46:45Z","timestamp":1788061605000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Rapid Transformation of Carcinogenic 4\u2010Nitrophenol by Nanoparticles Synthesized Using Recycled Copper Waste: A Sustainable Circular Economic Approach"],"prefix":"10.1002","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-3589-707X","authenticated-orcid":false,"given":"Virender","family":"Kumar","sequence":"first","affiliation":[{"name":"School of Physical Sciences Jawaharlal Nehru University  Delhi 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