Borges, Shalimar da SilvaXavier, Leandro Pablo dos SantosSilva, Adilson Cândido daAquino, Sergio Francisco de2016-07-292016-07-292016BORGES, S. da S. et al. Imobilização de dióxido de titânio em diferentes materiais suporte para o emprego em fotocatálise heterogênea. Química Nova, v. x, p. 1, 2016. Disponível em: <http://quimicanova.sbq.org.br/imagebank/pdf/AR20160025.pdf>. Acesso em: 16 jun. 2016.1678-7064http://www.repositorio.ufop.br/handle/123456789/6675The technological bottleneck for the application of heterogeneous photocatalysis with titanium dioxide (TiO2) is the retention and reuse of the catalyst, which brings opportunities for studying techniques for its immobilization on solid supports. The main objective of this paper was to test different methods to effectively immobilize TiO2 on granular activated carbon (GAC), crushed ceramic material (CCM) and zeolite (ZEO) in order to use the catalyst for sulfamethoxazole (SMX) removal from aqueous solutions. For this, three TiO2 immobilization methods (1-immersion of the support in TiO2 slurry; 2-covering by sol-gel synthesis using titanium isopropoxide; 3- impregnating the support with white wall paint doped with TiO2) were tested and the resulting catalyst were characterized and evaluated for SMX removal. The results showed that GAC was the best support and that its immersion in a 50% (w/v) TiO2 suspension was the best immobilization method. Photodegradation assays with such catalyst carried out with 10 mg.L-1 of the antibiotic sulfamethoxazole (SMX) led to 90% of removal of this pharmaceutical after 3.5 hours, which was ~38% higher than the UV photolysis at the same contact time.en-USabertoPharmaceuticalsCatalyst immobilizationTitanium dioxideHeterogeneous photocatalysiGranular activated carbonArtigo publicado em periodicoA Sociedade Brasileira de Química dá permissão à UFOP para reproduzir no RI/UFOP, uma cópia em formato eletrônico dos artigos completos, sem nenhuma edição e/ou modificação, publicados na revista Química Nova, que tenham como autores seus alunos e/ou professores. Fonte: Email do editor de 17 set. 2013.http://dx.doi.org/10.5935/0100-4042.20160106