Methylene Blue Adsorption from Aqueous Solution by Magnetic Cellulose/Graphene Oxide Composite: Equilibrium, Kinetics, and Thermodynamics

2014 ◽  
Vol 53 (3) ◽  
pp. 1108-1118 ◽  
Author(s):  
Haochun Shi ◽  
Weisong Li ◽  
Lei Zhong ◽  
Chunjian Xu
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Graphene Oxide ◽  
Methylene Blue Adsorption ◽  
Kinetics And Thermodynamics ◽  
Oxide Composite

Preparation of High Stability Graphene Oxide/Zinc Oxide Composite Membrane via Vacuum Filtration for Separation of Methylene Blue from Aqueous Solution

2020 ◽  
Vol 5 (35) ◽  
pp. 10887-10896 ◽  
Author(s):  
Hongwei Liu ◽  
Qinya Huang ◽  
Qiaoe Wang ◽  
Jun Li ◽  
Zhanchao Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Zinc Oxide ◽  
Graphene Oxide ◽  
Composite Membrane ◽  
High Stability ◽  
Vacuum Filtration ◽  
Oxide Composite

Methylene blue adsorption on graphene oxide/calcium alginate composites

2013 ◽  
Vol 95 (1) ◽  
pp. 501-507 ◽  
Author(s):  
Yanhui Li ◽  
Qiuju Du ◽  
Tonghao Liu ◽  
Jiankun Sun ◽  
Yonghao Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Calcium Alginate ◽  
Methylene Blue Adsorption

scholarly journals Study on the adsorption of methylene blue from aqueous solution using hydrogel glucomannan/graphene oxide

2021 ◽  
Vol 10 (1) ◽  
pp. 59-66
Author(s):  
Son Le Lam ◽  
Phu Nguyen Vinh ◽  
Hieu Le Trung ◽  
Tan Le Thua ◽  
Nhan Dang Thi Thanh ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Graphene Oxide ◽  
Adsorption Capacity ◽  
Organic Dyes ◽  
Dye Adsorption ◽  
Order Kinetic ◽  
Equilibrium Data ◽  
Order Kinetic Model ◽  
Pseudo Second Order

Glucomannan/graphene oxide (GM/GO) hydrogel was synthesized by using calcium hydroxide as the crosslinker. The synthesized material was characterized by using IR, XRD, SEM, EDX and RAMAN technology. The composite hydrogel was used for removal of organic dyes from aqueous solution. The results showed that the GM/GO hydrogel had a porous structure and a high adsorption capacity toward methylene blue (MB). The pseudo-second-order kinetic model could fit the rate equation of MB adsorption onto the GM/GO hydrogel. The adsorption of MB onto GM/GO hydrogel was a spontaneous process. In addition, the equilibrium adsorption isotherm data indicated that equilibrium data were fitted to the Langmuir isotherm and the maximum dye adsorption capacity was 198,69 mg.g-1. Moreover, the hydrogel was stable and easily recovered and adsorption capacity was around 97% of the initial saturation adsorption capacity after being used five times.

scholarly journals Synthesis of Polyaniline coated Graphene Oxide @ SrTiO3 Nanocube Nanocomposites for Enhanced Removal of Carcinogenic Dyes from Aqueous Solution

2016 ◽  
Author(s):  
Syed Shahabuddin ◽  
Norazilawati Muhamad Sarih ◽  
Muhammad Afzal Kamboh ◽  
Hamid Rashidi Nodeh ◽  
Sharifah Mohamad
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Graphene Oxide ◽  
Methyl Orange ◽  
Oxidative Polymerization ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Polymerization Method

The present investigation highlights the synthesis of polyaniline (PANI) coated graphene oxide doped with SrTiO3 nanocube nanocomposites through facile in-situ oxidative polymerization method for the efficient removal of carcinogenic dyes, namely, the cationic dye methylene blue (MB) and the anionic dye methyl orange (MO). The synthesised nanocomposites were characterised by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The adsorption efficiencies of graphene oxide (GO), PANI homopolymer and SrTiO3 nanocubes-doped nanocomposites were assessed by monitoring the adsorption of methylene blue and methyl orange dyes from aqueous solution. The adsorption efficiency of nanocomposites doped with SrTiO3 nanocubes were found to be of higher magnitude as compared with undoped nanocomposite. Moreover, the nanocomposite with 2 wt% SrTiO3 with respect to graphene oxide demonstrated excellent adsorption behaviour with 99% and 91% removal of MB and MO respectively, in a very short duration of time.

Synthesis and characterization of metallic sulfide NPs doped graphene oxide for methylene blue adsorption to leuco methylene blue in aqueous mixture

2019 ◽  
Vol 04 ◽  
Author(s):  
Sachin Dev ◽  
Man Singh
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Graphite Oxide ◽  
Metal Sulfide ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Adsorption Effect ◽  
Xps Spectra ◽  
Methylene Blue Adsorption ◽  
Doped Graphene

Introduction: The Metal Sulfide Nanoparticles Doped Graphene Oxide Sheets Have Been Studied And Were Used To Adsorb Fluorescent Methylene Blue Dye. Such Mechanism Efficiently Reduces The Dyes And Their Fluorescent Pollutants Through The Positive And Negative Holes. The Metal Sulfide Doped Graphene Oxide Could Be A Most Potential Route To Reduce From Fluorescent To Non-Fluorescent Species To Prevent The Global Warming And Other Pollution Being Caused By Them. Objectives: This Study Has Been To Strengthen And Widen The Applications Of Negative And Positive Holes Quick Formation At A Negligible Energy Barrier. Metal Sulfide Nanoparticles Were Doped With Graphene Oxide To Further Strengthen The Semiconducting And To Fastened The Rate Of Adsorption Of Methylene Blue Dye. Methods: Graphite Flakes Were Oxidized To Graphite Oxide With High Yield. The Graphite Oxide Was Sonicated In Water To Obtain Graphene Oxide And Doped With Metal Sulfide Nanoparticles In Situ. The Samples Were Characterized With High End Instruments And Used For Adsorption. Results: The Metal Sulfide Nanoparticles Were Successfully Doped With Graphene Oxide. The Ftir And Xps Spectra Infer Doping Of Metal Sulfide Nanoparticle In Graphene Oxide. That Enhanced Methylene Blue Adsorption Upto 97%. Conclusion: The Common Adsorption Effect Of Methylene Blue With Bare Graphene Oxide And Metal Sulfide Nanoparticles Doped Graphene Oxide Were Studied In This Paper. The Methylene Blue Adsorption Was Maximum (97%) By Cadmium Sulfide Doped Graphene Oxide Compared To Bare Graphene Oxide (87%), Nickel Sulfide Doped Graphene Oxide (79%), And Zinc Sulfide Doped Graphene Oxide (89%). The Metal Sulfide Nanoparticles Have Successfully Enhanced A Semiconductor Mechanism Of Graphene Oxide Especially With 3d And 4d10 Of Cds.

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