Improved Extraction of Natural Blue dye from Butterfly Pea using Microwave Assisted Methodology to Reduce the Effect of Synthetic Blue Dye

2012 ◽  
Vol 4 (2) ◽  
pp. 57-65 ◽  
Author(s):  
Keka Sinha ◽  
Papita Das Saha ◽  
V. Ramya ◽  
Siddhartha Datta
Keyword(s):  
Blue Dye ◽  
Microwave Assisted ◽  
Butterfly Pea

Sequestration of methylene blue dye from aqueous solution using microwave assisted dragon fruit peel as adsorbent

2021 ◽  
pp. 101917
Author(s):  
Mohd Azmier Ahmad ◽  
Muhammad Aswar Eusoff ◽  
Kayode Adesina Adegoke ◽  
Olugbenga Solomon Bello
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Fruit Peel ◽  
Microwave Assisted ◽  
Dragon Fruit

scholarly journals Structural, Biological and Photocatalytic Properties of Zirconium Oxide Nanoparticles Synthesized by Microwave Assisted Solution Method

2019 ◽  
Vol 31 (8) ◽  
pp. 1729-1732
Author(s):  
S. Vijayalakshmi ◽  
E. Kumar ◽  
S.C. Vella Durai
Keyword(s):  
Methylene Blue ◽  
Antibacterial Activity ◽  
Zirconium Dioxide ◽  
Solution Method ◽  
Zro2 Nanoparticles ◽  
Blue Dye ◽  
Average Crystalline Size ◽  
Methylene Blue Dye ◽  
Bacterial Strains ◽  
Microwave Assisted

Zirconium dioxide nanoparticles have been synthesized by microwave assisted solution method. The prepared nanoparticle have been characterized by powder X-ray diffraction, scanning electron microscope, Fourier transform infrared spectroscopy, ultraviolet- diffuse reflectance spectra, thermo gravimetric-differential thermal analysis and also evaluated for their antibacterial activity against bacterial strains. XRD pattern showed the prepared ZrO2 nanoparticles having monoclinic structure which shows the average crystalline size around 20 nm. SEM image showed the particles are spherical shape with agglomeration due to the intermolecular attraction for small particle size. From the UV-DRS,the energy band gap has found to be 4.9 eV. The results of antibacterial activity showed that the nanocrystalline zirconium dioxide had an important inhibitory activity against pseudomonas arginosa. Photocatalytic degradation of methylene blue dye in the presence of ZrO2 nanoparticle under sunlight has been investigated at various times. The 75 % of methylene blue dye has been degraded at 140 min of sunlight irradiation. The photocatalytic activity of catalyst has been high for 40 mg/50 mL sample concentration.

scholarly journals Synthesis and Characterization of CeO2-SiO2Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
R. M. Mohamed ◽  
E. S. Aazam
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Photocatalytic Oxidation ◽  
Uv Light ◽  
Irradiation Time ◽  
High Surface ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Microwave Assisted ◽  
Small Pore

CeO2-SiO2nanoparticles were synthesized for the first time by a facile microwave-assisted irradiation process. The effect of irradiation time of microwave was studied. The materials were characterized by N2adsorption, XRD, UV-vis/DR, and TEM. All solids showed mesoporous textures with high surface areas, relatively small pore size diameters, and large pore volume. The X-ray diffraction results indicated that the as-synthesized nanoparticles exhibited cubic CeO2without impurities and amorphous silica. The transmission electron microscopy (TEM) images revealed that the particle size of CeO2-SiO2nanoparticles, which were prepared by microwave method for 30 min irradiation times, was around 8 nm. The photocatalytic activities were evaluated by the decomposition of methylene blue dye under UV light irradiations. The results showed that the irradiation under the microwave produced CeO2-SiO2nanoparticles, which have the best crystallinity under a shorter irradiation time. This indicates that the introduction of the microwave really can save energy and time with faster kinetics of crystallization. The sample prepared by 30 min microwave irradiation time exhibited the highest photocatalytic activity. The photocatalytic activity of CeO2-SiO2nanoparticles, which were prepared by 30 min irradiation times was found to have better performance than commercial reference P25.

Adsorption of Turquoise Blue Dye from Aqueous Solution using Microwave Assisted Zinc Chloride Activated Carbon Prepared from Delonix Regia Pods

2017 ◽  
Vol 231 (5) ◽  
Author(s):  
K. Ramesh ◽  
A. Rajappa ◽  
V. Nandhakumar
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Zinc Chloride ◽  
Activated Carbons ◽  
Blue Dye ◽  
Delonix Regia ◽  
Microwave Assisted ◽  
Adsorption Interaction

AbstractAdsorption interaction of Turquoise blue dye onto microwave assisted zinc chloride activated carbon from aqueous solution was investigated. Activated carbons were prepared from pods of

scholarly journals Microwave-assisted activated carbon from passion fruit peel for methylene blue dye removal

2019 ◽  
Author(s):  
Mohd Azmier Ahmad ◽  
Muhammad Aswar Md Eusoff ◽  
Mohamad Nasran Nasehir Khan ◽  
Azduwin Khasri
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Dye Removal ◽  
Passion Fruit ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Fruit Peel ◽  
Microwave Assisted
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