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However, its wide bandgap and relatively low conductivity limit its practical application. Modifying TiO<jats:sub>2<\/jats:sub> with carbon species is a promising route to overcome these intrinsic complexities. In this work, we propose a facile method to modify TiO<jats:sub>2<\/jats:sub> nanotubes (NTs) based on the remnant organic electrolyte retained inside the nanotubes after the anodization process, that is, without removing it by immersion in ethanol. Carbon\u2010modified TiO<jats:sub>2<\/jats:sub> NTs (C\u2010TiO<jats:sub>2<\/jats:sub> NTs) showed enhanced H<jats:sub>2<\/jats:sub> evolution in photocatalysis under UV illumination in aqueous solutions. When the C\u2010TiO<jats:sub>2<\/jats:sub> NTs were subjected to UV light illumination, the carbon underwent modification, resulting in higher measured photocurrents in the tube layers. After UV illumination, the IPCE of the C\u2010TiO<jats:sub>2<\/jats:sub> NTs was 4.4\u2010fold higher than that of the carbon\u2010free TiO<jats:sub>2<\/jats:sub> NTs.<\/jats:p>","DOI":"10.1002\/open.202300185","type":"journal-article","created":{"date-parts":[[2023,12,13]],"date-time":"2023-12-13T08:58:55Z","timestamp":1702457935000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Enhanced Photocatalytic H<sub>2<\/sub> Generation by Light\u2010Induced Carbon Modification of TiO<sub>2<\/sub> Nanotubes"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0557-6311","authenticated-orcid":false,"given":"Amara","family":"Nasir","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering WW4-LKO Friedrich-Alexander University Erlangen-Nuremberg  Martensstrasse 7 91058 Erlangen Germany"},{"name":"Pakistan Institute of Engineering and Applied Sciences (PIEAS)  PO Nilore Islamabad 45650 Pakistan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3425-7667","authenticated-orcid":false,"given":"Alexander B.","family":"Tesler","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering WW4-LKO Friedrich-Alexander University Erlangen-Nuremberg  Martensstrasse 7 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0194-0286","authenticated-orcid":false,"given":"Shiva","family":"Mohajernia","sequence":"additional","affiliation":[{"name":"Chemical and Materials Engineering Department University of Alberta  12-237 Donadeo Innovation Centre For Engineering, 9211\u2013116 St Edmonton Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shanshan","family":"Qin","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering WW4-LKO Friedrich-Alexander University Erlangen-Nuremberg  Martensstrasse 7 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrik","family":"Schmuki","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering WW4-LKO Friedrich-Alexander University Erlangen-Nuremberg  Martensstrasse 7 91058 Erlangen Germany"},{"name":"Regional Centre of Advanced Technologies and Materials  \u0160lechtitel u 27 Olomouc 78371 Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4836-946X","authenticated-orcid":false,"given":"Anca","family":"Mazare","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering WW4-LKO Friedrich-Alexander University Erlangen-Nuremberg  Martensstrasse 7 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9121-4041","authenticated-orcid":false,"given":"Tariq","family":"Yasin","sequence":"additional","affiliation":[{"name":"Pakistan Institute of Engineering and Applied Sciences (PIEAS)  PO Nilore Islamabad 45650 Pakistan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,12,13]]},"reference":[{"key":"e_1_2_9_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr500061m"},{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr5001892"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ceja.2022.100262"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.8b04068"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/c4cc02069c"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/catal9020191"},{"key":"e_1_2_9_7_1","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1002\/9783527808175.ch10","volume-title":"in Visible Light. 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