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Low energy consumption synthesis of nanostructured TiO2 particles by combining oxidant peroxide method and microwave-assisted hydrothermal treatment

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Low energy consumption synthesis of nanostructured TiO2 particles by combining oxidant peroxide method and microwave-assisted hydrothermal treatment

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Título Low energy consumption synthesis of nanostructured TiO2 particles by combining oxidant peroxide method and microwave-assisted hydrothermal treatment
Outro título Low energy consumption synthesis of nanostructured Titanium dioxide particles by combining oxidant peroxide method and microwave-assisted hydrothermal treatment
Autor Garcia, Ana Paula
Rocha, Iasmin Cáceres Leite
Santos, Paulo Henrique Foschiera dos
Basegio, Tania Maria
Pereira, Marcelo Barbalho
Clemens, Frank
Alves, Annelise Kopp
Bergmann, Carlos Perez
Abstract Titanium dioxide with high specific surface area in the crystalline anatase phase is a promising material for environmental applications. In this work, TiO2 with good applicability for photocatalytic processes has been obtained using the low energy consumption synthesis based on oxidant peroxide method combined with microwave-assisted low temperature hydrothermal treatment. To prepare the material, titaniumpropoxide, hydrogen peroxide, and isopropyl alcohol were used.The influence of time and temperature during the hydrothermal step on properties likemorphology, crystallinity, phase composition, specific surface area, and photocatalytic behavior were investigated. Photoactivity was measured using the methyl orange decompositionmethod inUVA light. Increasing temperature during hydrothermal step, photocatalytic properties could be improved.The nanostructured TiO2 particles synthesized at 200∘C and 30 min with this method showed photocatalytic activity comparable to commercial Aeroxide TiO2 P25.
Contido em Journal of nanomaterials [recurso eletrônico]. New York. Vol. 2016 (2016), Article ID 4910536, 9 p.
Assunto Dióxido de titânio
Fotocatálise
Nanoestruturas
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/141345
Arquivos Descrição Formato
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