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The synthesis formed very fine particles, appearing as nanospheres in the 11 nm size range. As for the nanostructured films, they have displayed similar structural characteristics to the nanoparticles, with thickness of 130 nm. These films covered uniformly and homogenously the Whatman paper, while maintaining its flexibility. The materials processed had their photocatalytic activity assessed from rhodamine B degradation under solar radiation (91% degradation after 40 min for the powder material and 68% after 6 h for the nanostructured thin films). Reusability experiments were also carried out, revealing superior performance concerning the Degussa P25, the most common photocatalyst used. The results of the present work can be thought as an option for the existing photocatalysts activated under solar light, namely for water purification, as it simultaneously produces enhanced photocatalytic powders and photocatalytic papers fully disposable and that can be easily recycled.<\/jats:p>","DOI":"10.1088\/2632-959x\/abed40","type":"journal-article","created":{"date-parts":[[2021,3,9]],"date-time":"2021-03-09T17:46:03Z","timestamp":1615311963000},"page":"040002","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":17,"title":["Enhanced solar photocatalysis of TiO<sub>2<\/sub> nanoparticles and nanostructured thin films grown on paper"],"prefix":"10.1088","volume":"2","author":[{"given":"T","family":"Freire","sequence":"first","affiliation":[]},{"given":"A R","family":"Fragoso","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3667-6830","authenticated-orcid":false,"given":"M","family":"Matias","sequence":"additional","affiliation":[]},{"given":"J V","family":"Pinto","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6878-1040","authenticated-orcid":false,"given":"A C","family":"Marques","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1236-9262","authenticated-orcid":false,"given":"A","family":"Pimentel","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5446-2759","authenticated-orcid":false,"given":"P","family":"Barquinha","sequence":"additional","affiliation":[]},{"given":"R","family":"Huertas","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4202-7047","authenticated-orcid":false,"given":"E","family":"Fortunato","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1997-7669","authenticated-orcid":false,"given":"R","family":"Martins","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3115-6588","authenticated-orcid":false,"given":"D","family":"Nunes","sequence":"additional","affiliation":[]}],"member":"266","published-online":{"date-parts":[[2021,10,22]]},"reference":[{"key":"nanoxabed40bib1","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1080\/00139157.2005.10524444","article-title":"What is sustainable development? 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