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In the present work, With the intention of removal of colour from Coomassie Brilliant Blue R (CBBR), a triphenylmethane azo dye using the synthesized Nickel Calciate nanoparticles (NiCaO 2) in presence of natural sunlight. The nanoparticles were synthesized by using solution combustion method and characterisation was done by Scanning Electron Micro...
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The photocatalytic decolorizing efficiency of two synthesized Calcium Zincate
nanoparticles (CaZnO2 I and CaZnO2 II) against Disperse Blue 2BL dye in aqueous
solution was investigated. The Calcium Zincate nanoparticles were synthesized by simple
solution combustion method using two different fuels- urea and acetamide. The
synthesized nanoparticles...
The photocatalytic degradation has become most efficient process for the degradation of dyes. In the present study, Violet GL2B azo dye was chosen for the degradation under visible light irradiation. The two different nanoparticles, synthesized CaO and commercially available TiO 2 were tested for the photocatalytic degradation. CaO nanoparticle was...
Citations
... Experimental results illustrated that, the percentage of degradation gradually decreases with increase in dye concentration. At higher dye concentration less adsorption of dye molecules on the CaSiO 3 surface which directly affects to lack of availability of active surface area [17], [25]. Above the 2×10 -4 mol/dm 3 dye concentration, the percentage of degradation decreased due to less photons entering into the solution, which results in the decrease in formation of hydroxyl radicals and suppress the degradation reaction [15], [26], [27], [28], [29]. ...
Calcium Silicate nanoparticle was prepared using available calcium nitrate, silica fumes and fuel urea by solution combustion method. The prepared nanoparticles were characterized by XRD, SEM-EDAX, TEM and UV-Vis absorbance spectroscopy. The results of XRD revealed the presence of orthorhombic structure. The average size of prepared nanoparticles was found to be 13nm and the particle size less than 48nm confirmed by TEM. The optical band gap was found to be 4.6eV. The degradation efficacy was successfully examined for acridine orange and victoria blue B dye under sunlight. The degradation efficacy was achieved at 98.33% for acridine orange dye and 97.63% for victoria blue B dye in acidic pH.
Zirconium oxide with the tetragonal phase was prepared from zirconium nitrate and
urea by solution combustion method. Nano-photocatalyst zirconium oxide was investigated by
XRD, SEM-EDAX, TEM, UV absorbance spectroscopy and specific surface area analysis. The
distribution size of ZrO was found to be less than 17nm and was confirmed by XRD and TEM
studies. Further the ZrO nano-photocatalyst confirms the tetragonal phase by XRD. EDAX
reveals the formation of ZrO. The efficiency of ZrO nanoparticles in the photodegradation of
victoria blue B and acridine orange dye under sunlight was investigated. The results reveal that
the degradation efficiency was found to be 95.42% for VBB (at 0.030g/pH 6/1×10-4mol/dm3)
and 92.52% for AO (at 0.035g/pH 4/1×10-4mol/dm3). Further the degradation efficiency shown
highest in VBB dye when compare to AO dye. Therefore, the ZrO nanoparticle has been found
to be suitable for the treatment of textile effluents.
