Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases
This investigation presents a novel procedure for synthesizing titanium dioxide (TiO2) using cassava starch (tapioca) as an additive. Two samples were prepared for comparison: one synthesized with tapioca (TiO2-T) and the other without it (TiO2). Both were calcined at temperatures ranging from 500 °...
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825003156 |
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| author | Willians Lopes de Almeida Felipe Antônio Lucca Sanchéz Fabiano Severo Rodembusch Vânia Caldas de Sousa |
| author_facet | Willians Lopes de Almeida Felipe Antônio Lucca Sanchéz Fabiano Severo Rodembusch Vânia Caldas de Sousa |
| author_sort | Willians Lopes de Almeida |
| collection | DOAJ |
| description | This investigation presents a novel procedure for synthesizing titanium dioxide (TiO2) using cassava starch (tapioca) as an additive. Two samples were prepared for comparison: one synthesized with tapioca (TiO2-T) and the other without it (TiO2). Both were calcined at temperatures ranging from 500 °C to 800 °C. X-ray diffraction (XRD) analysis revealed that tapioca inhibited the formation of the rutile phase in TiO2-T at 600 °C, while the anatase phase persisted at all temperatures in TiO2-T, with varying percentages (10–100 %). In contrast, anatase was only present up to 600 °C in the TiO2 sample, accounting for 90 % at that temperature. UVVis diffuse reflectance spectroscopy (DRUV) data showed a decrease in bandgap values in both samples with increasing calcination temperature. Photoluminescence (PL) analysis, performed on samples calcined at 600 °C, suggested that TiO2-T exhibited a lower charge carrier recombination rate, indicating better photocatalytic potential. This study underscores the use of tapioca as a natural, renewable additive and suggests this environmentally friendly approach could inspire further research in sustainable material development. |
| format | Article |
| id | doaj-art-57afa84aa4284906aa0697db3a0ede73 |
| institution | OA Journals |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-57afa84aa4284906aa0697db3a0ede732025-08-20T02:05:11ZengElsevierNext Materials2949-82282025-07-01810079710.1016/j.nxmate.2025.100797Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phasesWillians Lopes de Almeida0Felipe Antônio Lucca Sanchéz1Fabiano Severo Rodembusch2Vânia Caldas de Sousa3Laboratório de Materiais Avançados da Amazônia, Instituto Federal de Educação, Ciência e Tecnologia do Amapá, Macapá, AP 68909-398, Brazil; Corresponding author.Laboratório de Cerâmicas Avançadas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, BrazilGrupo de Pesquisa em Fotoquímica Orgânica Aplicada, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, BrazilLaboratório de Cerâmicas Avançadas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, BrazilThis investigation presents a novel procedure for synthesizing titanium dioxide (TiO2) using cassava starch (tapioca) as an additive. Two samples were prepared for comparison: one synthesized with tapioca (TiO2-T) and the other without it (TiO2). Both were calcined at temperatures ranging from 500 °C to 800 °C. X-ray diffraction (XRD) analysis revealed that tapioca inhibited the formation of the rutile phase in TiO2-T at 600 °C, while the anatase phase persisted at all temperatures in TiO2-T, with varying percentages (10–100 %). In contrast, anatase was only present up to 600 °C in the TiO2 sample, accounting for 90 % at that temperature. UVVis diffuse reflectance spectroscopy (DRUV) data showed a decrease in bandgap values in both samples with increasing calcination temperature. Photoluminescence (PL) analysis, performed on samples calcined at 600 °C, suggested that TiO2-T exhibited a lower charge carrier recombination rate, indicating better photocatalytic potential. This study underscores the use of tapioca as a natural, renewable additive and suggests this environmentally friendly approach could inspire further research in sustainable material development.http://www.sciencedirect.com/science/article/pii/S2949822825003156Cassava starchNanoparticlesSol-gelTapiocaTitanium dioxide |
| spellingShingle | Willians Lopes de Almeida Felipe Antônio Lucca Sanchéz Fabiano Severo Rodembusch Vânia Caldas de Sousa Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases Next Materials Cassava starch Nanoparticles Sol-gel Tapioca Titanium dioxide |
| title | Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases |
| title_full | Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases |
| title_fullStr | Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases |
| title_full_unstemmed | Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases |
| title_short | Use of cassava starch (tapioca) in the synthesis of nanosized titanium dioxide: Evidence for the stabilization of anatase and rutile phases |
| title_sort | use of cassava starch tapioca in the synthesis of nanosized titanium dioxide evidence for the stabilization of anatase and rutile phases |
| topic | Cassava starch Nanoparticles Sol-gel Tapioca Titanium dioxide |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825003156 |
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