Sulfhydryl-Functionalized Reduced Graphene Oxide and Adsorption of Methylene Blue

2019 ◽  
Vol 36 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Hui Guo ◽  
Xinfeng Ma ◽  
Chubei Wang ◽  
Jianwei Zhou ◽  
Jianxin Huang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene

scholarly journals Simultaneous Determination of Uric Acid and Xanthine Using a Poly(Methylene Blue) and Electrochemically Reduced Graphene Oxide Composite Film Modified Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao
Keyword(s):  
Methylene Blue ◽  
Uric Acid ◽  
Graphene Oxide ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.

Reduction-Induced Synthesis of Reduced Graphene Oxide-Wrapped Cu2O/Cu Nanoparticles for Photodegradation of Methylene Blue

2021 ◽  
Author(s):  
K. D. R. N. Kalubowila ◽  
M. Siyath Gunewardene ◽  
J. Lakmini Kaushalya Jayasingha ◽  
Dhammike Dissanayake ◽  
Charith Jayathilaka ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cu Nanoparticles ◽  
Reduced Graphene

scholarly journals Magnetically separable reduced graphene oxide/iron oxide nanocomposite materials for environmental remediation

2014 ◽  
Vol 4 (12) ◽  
pp. 4396-4405 ◽  
Author(s):  
Teo Peik-See ◽  
Alagarsamy Pandikumar ◽  
Lim Hong Ngee ◽  
Huang Nay Ming ◽  
Chia Chin Hua
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Iron Oxide ◽  
Photocatalytic Degradation ◽  
Reduced Graphene Oxide ◽  
Environmental Remediation ◽  
Nanocomposite Materials ◽  
Reduced Graphene ◽  
Magnetically Separable

Synthesis of magnetically separable rGO/Fe3O4nanocomposite materials for environmental remediationviathe photocatalytic degradation of methylene blue.

Fe3O4/TiO2/reduced graphene oxide composites as highly efficient Fenton-like catalyst for the decoloration of methylene blue

2019 ◽  
Vol 223 ◽  
pp. 751-757 ◽  
Author(s):  
Chao Sun ◽  
Sheng-Tao Yang ◽  
Zhenjie Gao ◽  
Shengnan Yang ◽  
Ailimire Yilihamu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Oxide Composites

Preparation, characterization and adsorption kinetics of methylene blue dye in reduced-graphene oxide supported nanoadsorbents

2020 ◽  
Vol 309 ◽  
pp. 113171 ◽  
Author(s):  
Mehmet Harbi Calimli ◽  
Mehmet Salih Nas ◽  
Hakan Burhan ◽  
Sibel Demiroglu Mustafov ◽  
Özkan Demirbas ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Adsorption Kinetics ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Reduced Graphene ◽  
Kinetics Of

scholarly journals Real-time monitored photocatalytic activity and electrochemical performance of an rGO/Pt nanocomposite synthesized via a green approach

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13722-13731 ◽  
Author(s):  
Satish Kasturi ◽  
Sri Ramulu Torati ◽  
Yun Ji Eom ◽  
Syafiq Ahmad ◽  
Byong-June Lee ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Ambient Temperature ◽  
Real Time ◽  
Reduced Graphene Oxide ◽  
Organic Pollutant ◽  
Green Approach ◽  
Reduced Graphene

Herein, we have reported the real-time photodegradation of methylene blue, an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite.

scholarly journals The Adsorption of Methylene Blue on Eco-Friendly Reduced Graphene Oxide

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 681 ◽  
Author(s):  
Fabian Arias Arias ◽  
Marco Guevara ◽  
Talia Tene ◽  
Paola Angamarca ◽  
Raul Molina ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Maximum Adsorption Capacity ◽  
Green Protocol ◽  
Reduced Graphene ◽  
Wastewater Systems ◽  
Pseudo Second Order ◽  
Kinetics Of ◽  
Potential Use

Recently, green-prepared oxidized graphenes have attracted huge interest in water purification and wastewater treatment. Herein, reduced graphene oxide (rGO) was prepared by a scalable and eco-friendly method, and its potential use for the removal of methylene blue (MB) from water systems, was explored. The present work includes the green protocol to produce rGO and respective spectroscopical and morphological characterizations, as well as several kinetics, isotherms, and thermodynamic analyses to successfully demonstrate the adsorption of MB. The pseudo-second-order model was appropriated to describe the adsorption kinetics of MB onto rGO, suggesting an equilibrium time of 30 min. Otherwise, the Langmuir model was more suitable to describe the adsorption isotherms, indicating a maximum adsorption capacity of 121.95 mg g−1 at 298 K. In addition, kinetics and thermodynamic analyses demonstrated that the adsorption of MB onto rGO can be treated as a mixed physisorption–chemisorption process described by H-bonding, electrostatic, and π − π interactions. These results show the potential of green-prepared rGO to remove cationic dyes from wastewater systems.

α-Fe2O3/reduced graphene oxide nanorod as efficient photocatalyst for methylene blue degradation

2014 ◽  
Vol 19 (4) ◽  
pp. 258-264 ◽  
Author(s):  
A. Muthukrishnaraj ◽  
S. Vadivel ◽  
V. P. Kamalakannan ◽  
N. Balasubramanian
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methylene Blue Degradation ◽  
Reduced Graphene
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