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STO and CTO materials were produced through hydrothermal approaches, adjusting parameters such as temperature and pressure to optimise material purity. Among the perovskite photocatalysts, two stand out for their exceptional photocatalytic capacity and crystalline purity: CaTiO<jats:sub>3<\/jats:sub>, prepared at 180\u2009\u00b0C for 36\u2005h, and SrTiO<jats:sub>3<\/jats:sub>, synthesised at 200\u2009\u00b0C for 24\u2005h. Notably, we explore the selective ability of these materials for the photocatalytic oxidative self\u2010coupling of benzylamine (BZA) to produce N\u2010benzylidenebenzylamine (BZI), with CaTiO<jats:sub>3<\/jats:sub> emerging as the most efficient catalyst for this reaction. The CTO material prepared at 180\u2009\u00b0C for 36\u2005h (CTO180T\u201036) achieved a peak BZI production of 0.5\u2005mM, with a total conversion of BZA after 7\u2005h of irradiation. This study also emphasises the crucial role of reaction conditions and perovskite morphologies in fine\u2010tuning photocatalytic performance. These findings highlight opportunities for developing efficient and selective photocatalytic processes, holding the compromise for applications in organic synthesis and sustainable green chemistry.<\/jats:p>","DOI":"10.1002\/chem.202402422","type":"journal-article","created":{"date-parts":[[2024,10,9]],"date-time":"2024-10-09T15:44:20Z","timestamp":1728488660000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Exploring the Role of Titanate Perovskites in the Oxidation of Amines via Photocatalysis"],"prefix":"10.1002","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4254-7074","authenticated-orcid":false,"given":"Joana C.","family":"Lopes","sequence":"first","affiliation":[{"name":"LSRE-LCM\u2013Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"},{"name":"ALiCE\u2013Associate Laboratory in Chemical Engineering Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5206-5146","authenticated-orcid":false,"given":"Maria J.","family":"Sampaio","sequence":"additional","affiliation":[{"name":"LSRE-LCM\u2013Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"},{"name":"ALiCE\u2013Associate Laboratory in Chemical Engineering Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6469-4871","authenticated-orcid":false,"given":"Cl\u00e1udia G.","family":"Silva","sequence":"additional","affiliation":[{"name":"LSRE-LCM\u2013Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"},{"name":"ALiCE\u2013Associate Laboratory in Chemical Engineering Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6531-3978","authenticated-orcid":false,"given":"Joaquim L.","family":"Faria","sequence":"additional","affiliation":[{"name":"LSRE-LCM\u2013Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"},{"name":"ALiCE\u2013Associate Laboratory in Chemical Engineering Faculty of Engineering University of Porto  Rua Dr. Roberto Frias 4200-465 Porto Portugal"}]}],"member":"311","published-online":{"date-parts":[[2024,11,11]]},"reference":[{"key":"e_1_2_8_1_1","unstructured":"\u00a0"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1039\/C9SE01265F"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcis.2021.01.066"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2021.130613"},{"key":"e_1_2_8_5_1","unstructured":"\u00a0"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.3390\/catal8020070"},{"key":"e_1_2_8_7_2","first-page":"112","volume":"341","author":"Abdi Z.","year":"2021","journal-title":"J. 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