Perovskite-type titanate zirconate as photocatalyst for textile wastewater treatment.
Calcium titanate zirconate, Ca(Ti(1-x)Zrx)O3(CZT), powders have been synthesised by the polymeric precursor method. The structural analysis of the CZT powders was monitored by X-ray diffraction (XRD), photoacoustic spectroscopy (PAS) and textural analysis. The photocatalytic properties were evaluated by methylene blue (MB) decomposition and real textile wastewater (RTW) combined treatment (coagulation/flocculation/photocatalysis). Chemical oxygen demand (COD) of RTW was successfully reduced from 6195 mg L-1(untreated) to 662 mg L-1after coagulation/flocculation with a tannin-based coagulant (Tanfloc®) and finally to 471 mg L-1after combined treatment (coagulation/flocculation/photocatalysis) applying ultraviolet radiation and CaTiO3as photocatalyst.
Universidade Tecnológica Federal do Paraná, Rua Marcílio Dias, 635, Apucarana, Paraná, Brazil. analima@utfpr.edu.br.
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Ferrari-Lima
Universidade Tecnológica Federal do Paraná, Rua Marcílio Dias, 635, Apucarana, Paraná, Brazil.
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Ueda
Universidade Tecnológica Federal do Paraná, Rua Marcílio Dias, 635, Apucarana, Paraná, Brazil.
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EA
Bergamo
Universidade Tecnológica Federal do Paraná, Via do Conhecimento, Pato Branco, Paraná, Brazil.
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Marques
Universidade Tecnológica Federal do Paraná, Via do Conhecimento, Pato Branco, Paraná, Brazil.
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Ferri
Universidade Tecnológica Federal do Paraná, Via do Conhecimento, Pato Branco, Paraná, Brazil.
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Pinto
Universidade Tecnológica Federal do Paraná, Via do Conhecimento, Pato Branco, Paraná, Brazil.
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CAA
Pereira
Universidade Estadual de Maringá, Avenida Colombo, 5790, Maringá, Paraná, Brazil.
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PH
Yassue-Cordeiro
Universidade Tecnológica Federal do Paraná, Estrada para Boa Esperança Km 04, Dois Vizinhos, PR, Brazil.
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RP
Souza
D017610:Calcium Compounds; D010087:Oxides; D013783:Textile Industry; D013784:Textiles; D014025:Titanium; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry*
D017610:Calcium Compounds; D010087:Oxides; D014025:Titanium; D062065:Wastewater; C059910:perovskite
Perovskites; Photocatalysis; Photocatalyst; Textile wastewater; Titanate Zirconate