Coated mesh photocatalytic reactor for air treatment applications: comparative study of support materials.
An experimental comparative study of different meshes as support materials for photocatalytic applications in gas phase is presented. The photocatalytic oxidation of dichloromethane in air was addressed employing different coated meshes in a laboratory-scale, continuous reactor. Two fiberglass meshes and a stainless steel mesh were studied regarding the catalyst load, adherence, and catalytic activity. Titanium dioxide photocatalyst was immobilized on the meshes by dip-coating cycles. Results indicate the feasibility of the dichloromethane elimination in the three cases. When the number of coating cycles was doubled, the achieved conversion levels were increased twofold for stainless steel and threefold for the fiberglass meshes. One of the fiberglass meshes (FG2) showed the highest reactivity per mass of catalyst and per catalytic surface area.
Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Ciudad Universitaria, 3000, Santa Fe, Argentina.|Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
Claudio
C
Passalía
Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Ciudad Universitaria, 3000, Santa Fe, Argentina.
Emanuel
E
Nocetti
Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Ciudad Universitaria, 3000, Santa Fe, Argentina.|Instituto de Desarrollo Tecnológico para la Industria Química, INTEC (CONICET-UNL), Güemes, 3450, Santa Fe, Argentina.
Orlando
O
Alfano
Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral (FICH-UNL), Ciudad Universitaria, 3000, Santa Fe, Argentina. rbrandi@santafe-conicet.gov.ar.|Instituto de Desarrollo Tecnológico para la Industria Química, INTEC (CONICET-UNL), Güemes, 3450, Santa Fe, Argentina. rbrandi@santafe-conicet.gov.ar.
Rodolfo
http://orcid.org/0000-0002-5451-7000
R
Brandi
D000393:Air Pollutants / Q000302:isolation & purification*; D002384:Catalysis; D052918:Environmental Restoration and Remediation / Q000295:instrumentation* / Q000379:methods; D005898:Glass / Q000737:chemistry; D008752:Methylene Chloride / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D010777:Photochemistry; D013193:Stainless Steel / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry
D000393:Air Pollutants; C009753:fiberglass; D013193:Stainless Steel; C009495:titanium dioxide; D008752:Methylene Chloride; D014025:Titanium
Dichloromethane; Efficiency; Heterogeneous photocatalysis; Indoor pollution; Mesh reactor