Sonochemical synthesis and characterization of zinc tungstate nanoparticles and investigation of its photocatalyst application

Synthesis of Photoactive Materials by Sonication: Application in Photocatalysis and Solar Cells

“…Furthermore, application of ultrasound irradiation to a photocatalytic system might enhance both the bulk and localized mass transport and consequently expedite the molecular contact and the photocatalytic activity [ 1 , 2 , 4 – 6 ]. A considerable number of novel photocatalysts with novel nano-/microstructures (e.g., ZnWO 4 [ 7 ], CdMoO 4 [ 8 ], V 2 O 5 [ 9 ], CuMoO 4 [ 10 ], TiO 2 /Bi 2 O 3 [ 11 ]) have been prepared by means of ultrasound-assisted methodology. In this subsection, we would like to focus the readers’ attention on ultrasound-promoted procedures for the preparation of photocatalysts, and the potential application of these materials in the photocatalytic degradation and selective oxidation of organic compounds.…”

Synthesis of Photoactive Materials by Sonication: Application in Photocatalysis and Solar Cells

“…Furthermore, application of ultrasound irradiation to a photocatalytic system might enhance both the bulk and localized mass transport and consequently expedite the molecular contact and the photocatalytic activity [1,2,[4][5][6]. A considerable number of novel photocatalysts with novel nano-/ microstructures (e.g., ZnWO 4 [7], CdMoO 4 [8], V 2 O 5 [9], CuMoO 4 [10], TiO 2 / Bi 2 O 3 [11]) have been prepared by means of ultrasound-assisted methodology. In this subsection, we would like to focus the readers' attention on ultrasoundpromoted procedures for the preparation of photocatalysts, and the potential application of these materials in the photocatalytic degradation and selective oxidation of organic compounds.…”

Photocatalytic degradation of methylene blue dye using ZnWO4 catalyst prepared by a simple co-precipitation technique

“…Among them, wolframite type of zinc tungstate (ZnWO 4 ) is an interesting inorganic material because of its mostly structure-delicate multi-purpose such as ionic conductivity and luminescence. ZnWO 4 has commercial applications in particular laser-active hosts, photo anodes, humidity sensors, optical hole burning lattice materials (OHB), light emitting diodes and photocatalysis applications [1,2].…”

“…The photocatalytic activity (for the degradation of aqueous RhB) of nanosized ZnWO 4 photocatalyst prepared by sol-gel method in the temperature range of 450-800°C was reported by Wu et al [8] and they observed that the grain size of ZnWO 4 nanoparticles was difficult to control. In addition, the photodegradation of methyl orange was reported to examine the photocatalytic activities of ZnWO 4 nanoparticles synthesized by sonochemical technique [2]. Further, Gao et al have observed a great decline in photocatalytic efficiency with increasing crystallinity of ZnWO 4 nanorods for the decomposition of methylene blue [3].…”