Effect of Graphene Oxide Synthesis Method on The Adsorption Performance of Pharmaceutical Contaminants

2021 ◽  
Vol 7 ◽  
pp. 232-239
Author(s):  
Mohd Faizul Idham ◽  
Omar Falyouna ◽  
Osama Eljamal
Keyword(s):  
Graphene Oxide ◽  
Synthesis Method ◽  
Adsorption Performance ◽  
Pharmaceutical Contaminants

Reduced Graphene Oxide Paper: Fabrication by a Green Thermal Reduction Method and Preliminary Study of its In Vitro Cytotoxicity

2017 ◽  
Vol 45 ◽  
pp. 199-207 ◽  
Author(s):  
Xin Wang ◽  
Peng Li ◽  
Claudia Luedecke ◽  
Qiang Zhang ◽  
Zan Wang ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Mammalian Cells ◽  
Reduction Method ◽  
Heating Temperature ◽  
Synthesis Method ◽  
Thermal Reduction ◽  
Graphene Films ◽  
Reduced Graphene

Graphene films have been intensively explored because of their unique mechanical and physicochemical properties for potential applications in field of tissue engineering and implants. However, for biomedical applications, it is necessary to fully understand the toxicity and biocompatibility of the prepared graphene films since different synthesis method might lead to different biological properties. Here we report a step-by-step thermal reduction method of preparing reduced graphene oxide (rGO) film directly on various substrates at low heating temperature (below about 200 °C) without requiring any chemical reduction agent like hydrazine or other reductants (therefore we call it green method). Slowly heating GO hydrosol that was coated on the surface of a glass cell-culture dish or inside of a polypropylene tube from room temperature to 60, 100, and 160 °C for 12 h, respectively, a shiny and flat surface without crumpled structure or tiny pores was formed. We peeled it off from the substrate to explore its cytotoxicity. The results exhibited that the rGO film was biocompatible with Cal-72 cell but against Escherichia coli bacteria. Our work confirmed that rGO film produced by the green reduction method is cytocompatible with mammalian cells, which makes this rGO film a promising material for tissue engineering scaffold or as a surface-modification coating of an implant.

Graphene Oxide Multilayers Obtained from Bamboo: New Synthesis Method, Basic Properties, and Future Electronic Applications

2019 ◽  
pp. 191-236
Author(s):  
J. J. Prías‐Barragán ◽  
J. J. Prías‐Barragán ◽  
K. Gross ◽  
H. Ariza‐Calderón ◽  
P. Prieto
Keyword(s):  
Graphene Oxide ◽  
Synthesis Method ◽  
Basic Properties ◽  
New Synthesis

scholarly journals Room temperature production of graphene oxide with thermally labile oxygen functional groups for improved lithium ion battery fabrication and performance

2019 ◽  
Vol 7 (16) ◽  
pp. 9646-9655 ◽  
Author(s):  
Jiadong Qin ◽  
Yubai Zhang ◽  
Sean E. Lowe ◽  
Lixue Jiang ◽  
Han Yeu Ling ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Battery ◽  
Functional Groups ◽  
Room Temperature ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Oxygen Functional Groups ◽  
And Performance

We report a room-temperature synthesis method to produce graphene oxide with thermally-labile oxygen functional groups.

scholarly journals Enhanced synthesis method of graphene oxide

2021 ◽  
Vol 3 (1) ◽  
pp. 223-230
Author(s):  
Zineb Benzait ◽  
Pengwan Chen ◽  
Levent Trabzon
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
Synthesis Method ◽  
Environmentally Friendly ◽  
Mechanical And Electrical Properties ◽  
Pre Treatment ◽  
Treatment Step

A simple and environmentally friendly pre-treatment step allows the production of graphene oxide with few defects and high mechanical and electrical properties.

scholarly journals Synthesis of Graphene Oxide/Corn Cob Composites and investigation of their adsorption performance of Dye

2020 ◽  
Vol 1676 ◽  
pp. 012065
Author(s):  
Yanping Qu ◽  
Song Kang ◽  
Jingjing Sun ◽  
Ling Zhang ◽  
Junqing Sun ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Corn Cob ◽  
Adsorption Performance

scholarly journals Removal of Sulfadiazine Using 3D Interconnected Petal-Like Magnetic Reduced Graphene Oxide (MrGO) Nanocomposites

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1933
Author(s):  
Jie Zhong ◽  
Yong Feng ◽  
Jin-Ling Li ◽  
Bin Yang ◽  
Guang-Guo Ying
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Removal Rate ◽  
Physical Adsorption ◽  
Polluted Water ◽  
Adsorption Performance ◽  
Economic Methods ◽  
Reduced Graphene ◽  
Pure Fe3o4 ◽  
Magnetic Reduced Graphene Oxide

Adsorption has been regarded as one of the most efficient and economic methods for the removal of antibiotics from aqueous solutions. In this work, different graphene-based magnetic nanocomposites using a modified solvothermal method were synthesized and employed to remove sulfadiazine (SDZ) from water. The adsorption capacity of the optimal magnetic reduced graphene oxide (MrGO) was approximately 3.24 times that of pure Fe3O4. After five repeated adsorption cycles, the removal rate of SDZ (100 μg/L) by MrGO nanocomposites was still around 89.3%, which was only about a 3% decrease compared to that in the first cycle. Mechanism investigations showed that both chemical and physical adsorption contributed to the removal of SDZ. The excellent adsorption performance and recyclability of MrGO nanocomposites could be attributed to their wonderful 3D interconnected petal-like structures. The MrGO with SDZ could be easily recollected by magnetic separation. The MrGO also exhibited excellent adsorption performance in the purification of real polluted water.

Sign in / Sign up

Export Citation Format

Share Document