Enhanced photocatalytic efficacy of hetropolyacid pillared TiO2 nanocomposites.

Enhanced photocatalytic efficacy of hetropolyacid pillared TiO2 nanocomposites.

Journal of nanoscience and nanotechnology (2014-04-18)

R Nivea, V Gunasekaran, R Kannan, T Sakthivel, K Govindan

초록

The removal of dye from industrial effluents is prime important, photo-catalysis is a finest method to combat dye from effluents. This study concerns about the investigation of photocatalytic activity of TiO2-HPAs (Hetropolyacids) nanocomposite namely TiO2-Phosphomolybdic nanocomposite [TiO2-HMA] and TiO2-Phosphotungstic nanocomposite [TiO2-HWA] which were prepared by Sol-gel method and the same were characterized by using XRD, SEM-EDAX. The photocatalytic activity of prepared photo-catalysts were evaluated and compared by the degradation of Methylene Blue dye in water solution under UV irradiation. In that TiO2-HMA nanocomposite showed superior photocatalytic activity than TiO2-HWA.

MATERIALS

제품 번호

브랜드

제품 설명

718467

Sigma-Aldrich

Titanium(IV) oxide, nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis

77515

Sigma-Aldrich

Methylene Blue solution, for microscopy

268526

Sigma-Aldrich

Titanium, sponge, 1-20 mm, 99.5% trace metals basis

433667

Sigma-Aldrich

Titanium, evaporation slug, diam. × L 6.3 mm × 6.3 mm, ≥99.99% trace metals basis

IRMM531A

Titanium, IRMM^®, certified reference material, 0.1 mm foil

677469

Sigma-Aldrich

Titanium(IV) oxide, contains 1% Mn as dopant, nanopowder, <100 nm particle size (BET), ≥97%

348864

Sigma-Aldrich

Titanium, wire, diam. 0.5 mm, 99.99% trace metals basis

248576

Sigma-Aldrich

Titanium(IV) oxide, anatase, powder, −325 mesh, ≥99% trace metals basis

348805

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Titanium, foil, thickness 0.5 mm, 99.99% trace metals basis

366994

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Titanium, powder, <45 μm avg. part. size, 99.98% trace metals basis

267481

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Titanium, foil, thickness 0.25 mm, 99.99% trace metals basis

267503

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Titanium, foil, thickness 0.25 mm, 99.7% trace metals basis

460397

Sigma-Aldrich

Titanium, foil, thickness 0.127 mm, ≥99.99% trace metals basis

774510

Sigma-Aldrich

Titanium(IV) oxide, nanowires, diam. × L ~100 nm × 10 μm

03978

Sigma-Aldrich

Methylene Blue solution, for microscopy, concentrate according to Ehrlich, concentrated, aqueous solution

268496

Sigma-Aldrich

Titanium, powder, −100 mesh, 99.7% trace metals basis

232033

Sigma-Aldrich

Titanium(IV) oxide, anatase, powder, 99.8% trace metals basis

637254

Sigma-Aldrich

Titanium(IV) oxide, anatase, nanopowder, <25 nm particle size, 99.7% trace metals basis

14027

Sigma-Aldrich

Titanium(IV) oxide, puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5%

50484

Sigma-Aldrich

Methylene Blue solution, suitable for microbiology

14021

Sigma-Aldrich

Titanium(IV) oxide, ReagentPlus^®, ≥99%

GF35683218

Titanium, microfoil, disks, 25mm, thinness 1.0μm, specific density 429μg/cm², permanent mylar 3.5μm support, 99.6+%

GF99390134

Titanium, rod, 100mm, diameter 3.0mm, annealed, 99.6+%

GF96834493

Titanium, rod, 1000mm, diameter 5mm, annealed, 99.6+%

GF21200746

Titanium, tube, 100mm, outside diameter 0.81mm, inside diameter 0.61mm, wall thickness 0.1mm, as drawn, 99.6+%

GF39390880

Titanium, tube, 200mm, outside diameter 6.35mm, inside diameter 4.57mm, wall thickness 0.89mm, annealed, 99.6+%

GF45586985

Titanium, rod, 200mm, diameter 1.5mm, annealed, 99.6+%

GF17395375

Titanium, tube, 1000mm, outside diameter 2.03mm, inside diameter 1.63mm, wall thickness 0.2mm, annealed, 99.6+%

GF57414179

Titanium, rod, 1000mm, diameter 6mm, annealed, 99.6+%

GF14423633

Titanium, rod, 1000mm, diameter 4mm, annealed, 99.6+%