Development of ZnC2O4/carbon xerogel composites for photocatalytic degradation of methylene blue under solar radiation

Author(s)

Nicolas Perciani de Moraes ^[1] ; Leticia Araújo Bacetto ^[2] ; Clarice Moreira Goes ^[3] ; Gustavo Viégas Jucá Dantas ^[4] ; Maria Lucia Caetano Pinto da Silva ^[5] ; Liana Alvares Rodrigues ^[6]

Affiliation

^[1] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

^[2] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

^[3] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

^[4] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

^[5] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

^[6] Escola de Engenharia de Lorena (EEL-USP). Departamento de Engenharia Química. Estrada Municipal do Campinho - Brasil

• Document type: Journal article
• Source: MATERIA-RIO DE JANEIRO; v. 26, n. 2 2021-05-24.

Abstract

ABSTRACT The development of new ZnC2O4/carbon xerogel composites for photocatalytic applications has been evaluated. The use of carbon xerogel is justified by its high conductivity, which facilitates the separation of charges generated in the structure of zinc oxalate. The photocatalytic efficiency of the materials was evaluated by the decomposition of methylene blue. The materials were produced by dispersing zinc oxalate in carbon gel during its polycondensation in acidic medium. X-ray diffractograms show the existence of the ?-ZnC2O4 phase in the developed composite. The material has significant radiation absorption in the visible wavelength range. The composite showed complete degradation of methylene blue (10 mg L-1, 0.5 L) in the system after 3 h under simulated sunlight, with 50 mg L-1 catalyst dosage, showing the potential use of this material in treatment processes. of effluents. (AU)

• FAPESP's process: 19/03641-3 - Photodegradation of 4-chlorophenol using ZnO/SnO2/carbon xerogel composite as catalyst
• Grantee: Clarice Moreira Goes
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 18/10492-1 - Photocatalytic evaluation of heterojunctions semiconductor/ZnO/carbon xerogel in the photodegradation of 4-chlorophenol in both fluidized bed and batch reactors
• Grantee: Liana Alvares Rodrigues
• Support Opportunities: Regular Research Grants
• FAPESP's process: 18/16360-0 - Development of ZnO/Bi2O3/Carbon xerogel ternary composites as photocatalysts for the degradation of persistent organic pollutants
• Grantee: Nicolas Perciani de Moraes
• Support Opportunities: Scholarships in Brazil - Doctorate