scholarly journals TiO<sub>2</sub> Nanoparticles for Removal of Malachite Green Dye from Waste Water

2015 ◽  
Vol 05 (03) ◽  
pp. 373-388 ◽  
Author(s):  
Zeinab M. Abou-Gamra ◽  
Mohamed A. Ahmed
Keyword(s):  
Waste Water ◽  
Malachite Green ◽  
Malachite Green Dye

Synthesis of a Gum rosin alcohol-poly(acrylamide) based adsorbent and its application in removal of malachite green dye from waste water

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43092-43104 ◽  
Author(s):  
B. S. Kaith ◽  
Rajeev Jindal ◽  
Rachna Sharma
Keyword(s):  
Waste Water ◽  
Malachite Green ◽  
Potassium Persulphate ◽  
Malachite Green Dye ◽  
Gum Rosin ◽  
System P ◽  
Initiator System ◽  
Poly Acrylamide

The present paper is focused on the synthesis of a green GrA-cl-poly(AAm) adsorbent using N,N′-methylene-bis-acrylamide and potassium persulphate as a crosslinker–initiator system.

Malachite green dye, removal from waste water by adsorption

2008 ◽  
Vol 3 (2) ◽  
pp. 279-282
Author(s):  
N. Buvaneswari ◽  
C. Kannan
Keyword(s):  
Waste Water ◽  
Malachite Green ◽  
Dye Removal ◽  
Malachite Green Dye

scholarly journals Biosorption of Malachite Green Dye from Wastewater with Henfeathers -Analysis of Various Mathematical Models Wrt Continuous Adsorption

2021 ◽  
Vol 10 (10) ◽  
pp. 15-23
Author(s):  
K.S.G.V. Manikrishna* ◽  
◽  
Veluru Sridevi ◽  
Sri Himaja Pamu ◽  
M.Tukaram Bai ◽  
...  
Keyword(s):  
Waste Water ◽  
Malachite Green ◽  
Fixed Bed ◽  
Water Soluble ◽  
Input Concentration ◽  
Continuous Adsorption ◽  
Malachite Green Dye ◽  
Column System ◽  
Bed Height ◽  
Hen Feathers

In recent years, the remediation of hazardous organic dye-contaminated aquatic habitats has been a key research priority for environmental and chemical engineers. The goal of this research was to see how well malachite green adsorbs from waste water in a continuous column system having fixed bed. A biosorbent made from waste materials such as hen feathers has been shown to extract the water-soluble malachite green colour from waste water. The adsorption potential of malachite green dye ions in a continuous flow adsorption column is investigated in this work. The hen feathers' performance in the fixed bed column was assessed under a variety of operating circumstances, including bed height in the range 6-10cm; flow in the range 4-12ml/min, and starting concentration (10-30 mg/l). In comparison to other testing settings, the bed height (8cm), flowrate (12ml/min), and maximum input concentration (20mg/l) resulted in the highest malachite green absorption of 2.829mg/g. The column experimental data collected under various conditions was evaluated using three distinct models namely 1. Bohart-Adams model, 2 Yoon-Nelsons model, and 3 BDST model, all of which produced a decent estimation of the breakthrough curve. The findings from the Yoon-nelson and BDST models, on the other hand, were more favourable. The several characteristics of the hen feathers were studied using FTIR studies. The activated hen feather powder was a successful potential bio sorbent for the malachite green from aqueous phase.

Photo-catalytic Study of Malachite Green Dye Degradation Using Rice Straw Extracted Activated Carbon Supported ZnO Nano-particles

2020 ◽  
Vol 10 (6) ◽  
pp. 849-859
Author(s):  
Radwa A. El-Salamony ◽  
Abeer A. Emam ◽  
Nagwa A. Badawy ◽  
Sara F. El-Morsi
Keyword(s):  
Activated Carbon ◽  
Visible Light ◽  
Rice Straw ◽  
Malachite Green ◽  
Dye Degradation ◽  
Nano Particles ◽  
Oh Radicals ◽  
Impregnation Method ◽  
Photo Degradation ◽  
Malachite Green Dye

Objective: ZnO nanoparticles were synthesized using wet impregnation method, and activated carbon from rice straw (RS) prepared through chemical route. Methods: The nano-composites ZnO-AC series were prepared with different ZnO:AC ratio of 10, 20, 50, and 70% to optimize the zinc oxide nanoparticles used. The obtained composites were characterized by FE-SEM, XRD, SBET, and optical techniques then used for the photo-degradation of Malachite green dye (MG) under visible light. Results: It was found that 10ZnO-AC exhibited excellent visible light photo-catalytic performance. The ·OH radicals’ formation is matching with photo-activity of the prepared composites. The photo-degradation efficiency of MG increased from 63% to 93%, when the 10ZnO-AC photocatalyst amount was increased from 0.5 to 6 g/L. Conclusion: The GC-MS technique was used to analyze the intermediates formed; up to 15 kinds of chemicals were identified as the degradation products.

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