{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T23:30:50Z","timestamp":1781739050029,"version":"3.54.5"},"reference-count":76,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,2,29]],"date-time":"2020-02-29T00:00:00Z","timestamp":1582934400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Polyaniline (PANI)-materials have recently been proposed for environmental remediation applications thanks to PANI stability and sorption properties. As an alternative to conventional PANI oxidative syntheses, which involve toxic carcinogenic compounds, an eco-friendly procedure was here adopted starting from benign reactants (aniline-dimer and H2O2) and initiated by ultraviolet (UV)-irradiated TiO2. To unlock the full potential of this procedure, we investigated the roles of TiO2 and H2O2 in the nanocomposites synthesis, with the aim of tailoring the properties of the final material to the desired application. The nanocomposites prepared by varying the TiO2:H2O2:aniline-dimer molar ratios were characterized for their thermal, optical, morphological, structural and surface properties. The reaction mechanism was investigated via mass analyses and X-ray photoelectron spectroscopy. The nanocomposites were tested on both methyl orange and hexavalent chromium removal. A fast dye-sorption was achieved also in the presence of interferents and the recovery of the dye was obtained upon eco-friendly conditions. An efficient Cr(VI) abatement was obtained also after consecutive tests and without any regeneration treatment. The fine understanding of the reaction mechanism allowed us to interpret the pollutant-removal performances of the different materials, leading to tailored nanocomposites in terms of maximum sorption and reduction capability upon consecutive tests even in simulated drinking water.<\/jats:p>","DOI":"10.3390\/nano10030441","type":"journal-article","created":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T06:34:23Z","timestamp":1583130863000},"page":"441","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["Photocatalytic and Oxidative Synthetic Pathways for Highly Efficient PANI-TiO2 Nanocomposites as Organic and Inorganic Pollutant Sorbents"],"prefix":"10.3390","volume":"10","author":[{"given":"Carolina","family":"Cionti","sequence":"first","affiliation":[{"name":"Department of Chemistry, Universit\u00e0 degli Studi di Milano, via Golgi 19, 20133 Milano, Italy"},{"name":"Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5628-0337","authenticated-orcid":false,"given":"Cristina","family":"Della Pina","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Universit\u00e0 degli Studi di Milano, via Golgi 19, 20133 Milano, Italy"},{"name":"ISTM-CNR, via Golgi 19, 20133 Milano, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3386-9293","authenticated-orcid":false,"given":"Daniela","family":"Meroni","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Universit\u00e0 degli Studi di Milano, via Golgi 19, 20133 Milano, Italy"},{"name":"Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3127-8967","authenticated-orcid":false,"given":"Ermelinda","family":"Falletta","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Universit\u00e0 degli Studi di Milano, via Golgi 19, 20133 Milano, Italy"},{"name":"ISTM-CNR, via Golgi 19, 20133 Milano, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Ardizzone","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Universit\u00e0 degli Studi di Milano, via Golgi 19, 20133 Milano, Italy"},{"name":"Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via Giusti 9, 50121 Florence, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"111308","DOI":"10.1039\/C6RA24079H","article-title":"Facile route to a conducting ternary polyaniline@TiO2\/GN nanocomposite for environmentally benign applications: Photocatalytic degradation of pollutants and biological activity","volume":"6","author":"Kumar","year":"2016","journal-title":"RSC Adv."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"444","DOI":"10.1038\/nnano.2015.48","article-title":"A metal-free bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions","volume":"10","author":"Zhang","year":"2015","journal-title":"Nat. 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