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http://hdl.handle.net/10773/24934
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DC Field | Value | Language |
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dc.contributor.author | Ovodok, Evgeni | pt_PT |
dc.contributor.author | Maltanava, Hanna | pt_PT |
dc.contributor.author | Poznyak, Sergey | pt_PT |
dc.contributor.author | Ivanovskaya, Maria | pt_PT |
dc.contributor.author | Kudlash, Alexander | pt_PT |
dc.contributor.author | Scharnagl, Nico | pt_PT |
dc.contributor.author | Tedim, João | pt_PT |
dc.date.accessioned | 2018-12-18T12:29:57Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | http://hdl.handle.net/10773/24934 | - |
dc.description.abstract | Mesoporous TiO2 powders with an anatase framework were synthesized through surfactant-assisted template method. The concentrated titania sol (7-8 wt.%) prepared from TiCl4 as a precursor was used in this synthesis. The soluble triblock copolymer Pluronic F127 was employed as a structure-directing agent and a carbon precursor to fabricate the carbon-doped mesoporous titania. The synthesized powders were characterized by XRD, HRTEM, Raman spectroscopy, UV-Vis reflectance spectroscopy, N2 adsorption/desorption and TG/DSC methods. The mesoporous titania annealed at 350° C was shown to have a high specific surface area up to 192 m2/g and a narrow pore size distribution. After annealing, carbon species in graphitic form were detected in the template-prepared TiO2 samples using Raman spectroscopy measurements. The photocatalytic performance of the samples was characterized in the process of Rhodamine B decomposition under visible light irradiation. The enhanced visible light photocatalytic efficiency of the template-prepared TiO2 powders as compared with that of Degussa P25 can be attributed to the associated effects of high specific surface area, pure anatase crystalline structure and carbon doping. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Elsevier | pt_PT |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/645662/EU | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Titanium dioxide | pt_PT |
dc.subject | Mesoporous materials | pt_PT |
dc.subject | Sol-gel | pt_PT |
dc.subject | Carbon-doped | pt_PT |
dc.subject | Photocatalysis | pt_PT |
dc.title | Sol-gel template synthesis of mesoporous carbon-doped TiO2 with photocatalytic activity under visible light | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.firstPage | 17422 | pt_PT |
degois.publication.issue | 9 | pt_PT |
degois.publication.lastPage | 17430 | pt_PT |
degois.publication.title | Materials Today: Proceedings | pt_PT |
degois.publication.volume | 5 | pt_PT |
dc.date.embargo | 2019-08-29 | - |
dc.identifier.doi | 10.1016/j.matpr.2018.06.044 | pt_PT |
dc.identifier.essn | 2214-7853 | pt_PT |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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manuscript ID4- 2017Materials Today Proceedings.pdf | 695.54 kB | Adobe PDF | View/Open |
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