Tuning the synthetic conditions of graphene oxide/magnetite/ hydroxyapatite/cellulose acetate nanofibrous membranes for removing Cr(VI), Se(IV) and methylene blue from aqueous solutions

2020 ◽  
Vol 38 ◽  
pp. 101543 ◽  
Author(s):  
Reem Al-Wafi ◽  
M.K. Ahmed ◽  
S.F. Mansour
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Cellulose Acetate ◽  
Nanofibrous Membranes

Electrospun nanofibrous membranes of cellulose acetate containing hydroxyapatite co-doped with Ag/Fe: morphological features, antibacterial and degradation of methylene blue from aqueous solutions

2021 ◽  
Author(s):  
Ahmed Esmail Shalan ◽  
M. Afifi ◽  
M.M. El-Desoky ◽  
M.k Ahmed
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Cellulose Acetate ◽  
Morphological Features ◽  
Molar Ratio ◽  
Electrospinning Technique ◽  
Nanofiber Membranes ◽  
Nanofibrous Membranes ◽  
Co Doped

Cellulose acetate nanofiber membranes containing hydroxyapatite co-doped with Ag/Fe were efficaciously attained through the electrospinning technique. Different molar ratio compositions of hydroxyapatite co-doped with Ag/Fe in the structure of the...

Highly Monodisperse Pt/Rh Nanoparticles Confined in the Graphene Oxide for Highly Efficient and Reusable Sorbents for Methylene Blue Removal from Aqueous Solutions

2017 ◽  
Vol 2 (2) ◽  
pp. 697-701 ◽  
Author(s):  
Yunus Yildiz ◽  
Tugba Onal Okyay ◽  
Betül Sen ◽  
Bahdisen Gezer ◽  
Sultan Kuzu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Highly Efficient ◽  
Methylene Blue Removal

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.

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