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Cross-linked cellulose beads as an eco-friendly support for ZnO/SnO2/carbon xerogel hybrid photocatalyst: Exploring the synergy between adsorption and photocatalysis under simulated sunlight.
de Moraes, Nicolas Perciani; Pereira, Renan Amarante; da Silva, Thiago Vieira Chicuta; da Silva, Bruno Henrique Baena; de Assis, Gabrielle Policarpo; Campos, Tiago Moreira Bastos; Thim, Gilmar Patrocínio; de Vasconcelos Lanza, Marcos Roberto; de Freitas, Larissa; Rodrigues, Liana Alvares.
Afiliación
  • de Moraes NP; São Carlos Institute of Chemistry, University of São Paulo, Av. Trab. São Carlense, 400 - Parque Arnold Schimidt, São Carlos, SP 13566-590, Brazil.
  • Pereira RA; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil.
  • da Silva TVC; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil.
  • da Silva BHB; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil.
  • de Assis GP; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil.
  • Campos TMB; Aeronautics Institute of Technology - ITA/CTA, Praça Mal. Eduardo Gomes 50, CEP 12228-900, São José dos Campos, São Paulo, Brazil.
  • Thim GP; Aeronautics Institute of Technology - ITA/CTA, Praça Mal. Eduardo Gomes 50, CEP 12228-900, São José dos Campos, São Paulo, Brazil.
  • de Vasconcelos Lanza MR; São Carlos Institute of Chemistry, University of São Paulo, Av. Trab. São Carlense, 400 - Parque Arnold Schimidt, São Carlos, SP 13566-590, Brazil.
  • de Freitas L; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil.
  • Rodrigues LA; Lorena School of Engineering- EEL/USP, Estrada Municipal do Campinho S/N, CEP 12602-810 Lorena, São Paulo, Brazil. Electronic address: liana.r@usp.br.
Int J Biol Macromol ; 254(Pt 2): 127826, 2024 Jan.
Article en En | MEDLINE | ID: mdl-37926324
This paper explores the application of cross-linked cellulose beads as a sustainable and cost-effective support for the ZnO/SnO2/carbon xerogel hybrid photocatalyst. The application of the developed photocatalytic beads, named CB-Cat, was directed at a simultaneous adsorption/photocatalysis process, which was carried out under simulated sunlight. The characterization of the CB-Cat indicated a good dispersion of the photocatalyst of choice throughout the cellulose matrix, confirming its incorporation into the cellulose beads. Furthermore, it is possible to observe the presence of the photocatalyst on the surface of the CB-Cat, confirming its availability for the photonic activation process. The results showed that the simultaneous adsorption/photocatalysis process was optimal for enhancing the efficiency of methylene blue (MB) removal, especially when compared to the isolated adsorption process. Additionally, the regeneration of the CB-Cat between cycles was favorable toward the maintenance of the MB removal efficiency, as the process carried out without regeneration displayed significant efficiency drops between cycles. Finally, the mechanism evaluation evidenced that hydroxyl and superoxide radicals were the main responsible for the MB photocatalytic degradation during illumination with simulated sunlight.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Óxido de Zinc Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Óxido de Zinc Idioma: En Revista: Int J Biol Macromol Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos