Skip to Content
MilliporeSigma
  • Metal doped nanosized titania used for the photocatalytic degradation of rhodamine B dye under visible-light.

Metal doped nanosized titania used for the photocatalytic degradation of rhodamine B dye under visible-light.

Journal of nanoscience and nanotechnology (2013-08-02)
Mphilisi M Mahlambi, Ajay K Mishra, Shivani B Mishra, Rui W Krause, Bhekie B Mamba, Ashok M Raichur
PMID23901513
ABSTRACT

Metal-doped anatase nanosized titania photocatalysts were successfully synthesized using a sol-gel process. Different amounts of the dopants (0.2, 0.4, 0.6, 0.8 and 1.0%) of the metals (Ag, Ni, Co and Pd) were utilized. The UV-Vis spectra (solid state diffuse reflectance spectra) of the doped nanoparticles exhibited a red shift in the absorption edge as a result of metal doping. The metal-doped nanoparticles were investigated for their photocatalytic activity under visible-light irradiation using Rhodamine B (Rh B) as a control pollutant. The results obtained indicate that the metal-doped titania had the highest activity at 0.4% metal loading. The kinetic models revealed that the photodegradation of Rh B followed a pseudo first order reaction. From ion chromatography (IC) analysis the degradation by-products Rhodamine B fragments were found to be acetate, chloride, nitrite, carbonate and nitrate ions.

MATERIALS
Product Number
Brand
Product Description
79754
Supelco
Rhodamine B, analytical standard
Pricing and availability is not currently available.
700347
Sigma-Aldrich
Titanium(IV) oxide, mixture of rutile and anatase, nanoparticles, <150 nm particle size (volume distribution, DLS), dispersion, 40 wt. % in H2O, 99.5% trace metals basis
Pricing and availability is not currently available.
369489
Sigma-Aldrich
Titanium, foil, thickness 2.0 mm, 99.7% trace metals basis
Pricing and availability is not currently available.
266035
Sigma-Aldrich
Titanium, wire, diam. 1.0 mm, 99.99% trace metals basis
Pricing and availability is not currently available.
460400
Sigma-Aldrich
Titanium, wire, diam. 0.25 mm, 99.7% trace metals basis
Pricing and availability is not currently available.
305812
Sigma-Aldrich
Titanium, 5-10 mm, ≥99.99% trace metals basis (purity exclusive of Na and K content)
Pricing and availability is not currently available.
IRMM531B
Titanium, IRMM®, certified reference material, 0.5 mm foil
Pricing and availability is not currently available.
83689
Sigma-Aldrich
Rhodamine B, for fluorescence
Pricing and availability is not currently available.
IRMM531C
Titanium, IRMM®, certified reference material, 0.5 mm wire
Pricing and availability is not currently available.
204757
Sigma-Aldrich
Titanium(IV) oxide, rutile, ≥99.98% trace metals basis
Pricing and availability is not currently available.
224227
Sigma-Aldrich
Titanium(IV) oxide, rutile, powder, <5 μm, ≥99.9% trace metals basis
Pricing and availability is not currently available.
204730
Sigma-Aldrich
Titanium(IV) oxide, rutile, 99.995% trace metals basis
Pricing and availability is not currently available.
02558
Supelco
Rhodamine B solution, 0.2% in isopropanol, for TLC derivatization
Pricing and availability is not currently available.
348791
Sigma-Aldrich
Titanium, foil, thickness 0.127 mm, 99.7% trace metals basis
Pricing and availability is not currently available.
348848
Sigma-Aldrich
Titanium, foil, thickness 0.025 mm, 99.98% trace metals basis
Pricing and availability is not currently available.
267902
Sigma-Aldrich
Titanium, wire, diam. 0.81 mm, 99.7% trace metals basis
Pricing and availability is not currently available.
R6626
Sigma-Aldrich
Rhodamine B, ≥95% (HPLC)
Pricing and availability is not currently available.
637262
Sigma-Aldrich
Titanium(IV) oxide, rutile, nanopowder, <100 nm particle size, 99.5% trace metals basis
Pricing and availability is not currently available.
635057
Sigma-Aldrich
Titanium(IV) oxide, rutile, <001>, (single crystal substrate), ≥99.9% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm
Pricing and availability is not currently available.
634662
Sigma-Aldrich
Titanium(IV) oxide, mixture of rutile and anatase, nanopowder, <100 nm particle size (BET), 99.5% trace metals basis
Pricing and availability is not currently available.
718467
Sigma-Aldrich
Titanium(IV) oxide, nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis
Pricing and availability is not currently available.
30-2730
Sigma-Aldrich
Titanium(IV) oxide, JIS special grade, ≥99.0%
Pricing and availability is not currently available.
637254
Sigma-Aldrich
Titanium(IV) oxide, anatase, nanopowder, <25 nm particle size, 99.7% trace metals basis
Pricing and availability is not currently available.
IRMM531A
Titanium, IRMM®, certified reference material, 0.1 mm foil
Pricing and availability is not currently available.
267481
Sigma-Aldrich
Titanium, foil, thickness 0.25 mm, 99.99% trace metals basis
Pricing and availability is not currently available.
460397
Sigma-Aldrich
Titanium, foil, thickness 0.127 mm, ≥99.99% trace metals basis
Pricing and availability is not currently available.
348864
Sigma-Aldrich
Titanium, wire, diam. 0.5 mm, 99.99% trace metals basis
Pricing and availability is not currently available.
268496
Sigma-Aldrich
Titanium, powder, −100 mesh, 99.7% trace metals basis
Pricing and availability is not currently available.
366994
Sigma-Aldrich
Titanium, powder, <45 μm avg. part. size, 99.98% trace metals basis
Pricing and availability is not currently available.
433667
Sigma-Aldrich
Titanium, evaporation slug, diam. × L 6.3 mm × 6.3 mm, ≥99.99% trace metals basis
Pricing and availability is not currently available.