Adsorption Studies of Methylene Blue and Malachite Green From Aqueous Solutions by Pretreated Lignocellulosic Materials

2013 ◽  
Vol 48 (11) ◽  
pp. 1688-1698 ◽  
Author(s):  
Ling Wei Low ◽  
Tjoon Tow Teng ◽  
Mohd. Rafatullah ◽  
Norhashimah Morad ◽  
Baharin Azahari
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Malachite Green ◽  
Lignocellulosic Materials ◽  
Adsorption Studies

Adsorptive removal of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions using graphene oxide (GO)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Raja Babu Chilakapati ◽  
S. Hemanth Kumar ◽  
Suggala V. Satyanarayana ◽  
Dilip Kumar Behara
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Malachite Green ◽  
Electrostatic Interactions ◽  
Dye Molecules ◽  
Solution Ph ◽  
Increase With Increase ◽  
Adsorption Data ◽  
Modified Hummers Method

Abstract Graphene oxide (GO) synthesized via modified Hummers method was studied for adsorption of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions. It is hypothesized that electrostatic interactions between dye molecules and surface of GO will facilitate charge carrier movements and degrade the dye in an efficient way. The as synthesized GO was characterized using various characterization techniques such as XRD, Raman, FTIR, UV–Vis, SEM and EDAX. The experimental results suggest that dye removal percentage will increase with increase in adsorbent dosage, time as well as solution pH and the process was exothermic in nature. The adsorption data at 293 K could be fitted by Langmuir equation with a maximum adsorption amount of 119.04, 102.4 mg/g and Langmuir adsorption equilibrium constant of 1.58, 0.867 L/mg for MB and MG dyes, respectively. The outcomes of present article will help not only to understand the adsorption characteristics of GO on MB and MG dyes but also paves path towards development of highly oxidized GO surface for degradation of complex dyes.

scholarly journals Adsorption Kinetics of Malachite Green and Methylene Blue from Aqueous Solutions Using Surfactant-modified Organoclays

2017 ◽  
Vol 64 (2) ◽  
pp. 449-460 ◽  
Author(s):  
Haseeb Ullah ◽  
Muhammad Nafees ◽  
Farhat Iqbal ◽  
Saifullah Awan ◽  
Afzal Shah ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Malachite Green ◽  
Adsorption Kinetics ◽  
Kinetics Of

scholarly journals Adsorption studies of methylene blue and gentian violet on sugarcane bagasse modified with EDTA dianhydride (EDTAD) in aqueous solutions: Kinetic and equilibrium aspects

2013 ◽  
Vol 118 ◽  
pp. 135-143 ◽  
Author(s):  
Karla Aparecida Guimarães Gusmão ◽  
Leandro Vinícius Alves Gurgel ◽  
Tânia Márcia Sacramento Melo ◽  
Laurent Frédéric Gil
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Sugarcane Bagasse ◽  
Gentian Violet ◽  
Adsorption Studies
Sign in / Sign up

Export Citation Format

Share Document