Synergistic effects of a novel free-standing reduced graphene oxide film and surface coating fibronectin on morphology, adhesion and proliferation of mesenchymal stem cells

2015 ◽  
Vol 3 (21) ◽  
pp. 4338-4344 ◽  
Author(s):  
Lin Jin ◽  
Zhiping Zeng ◽  
Shreyas Kuddannaya ◽  
Dan Yue ◽  
Jingnan Bao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Coating ◽  
Synergistic Effects ◽  
Chemical Reduction ◽  
Nanofiber Membrane ◽  
Free Standing ◽  
Vacuum Filtration ◽  
Reduced Graphene

Fabrication of free-standing reduced graphene oxide (RGO) films by vacuum filtration of graphene oxide aqueous solution through a nanofiber membrane in combination with chemical reduction.

Fabrication of flexible reduced graphene oxide–TiO2 freestanding films for supercapacitor application

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9904-9911 ◽  
Author(s):  
Jinsu Kim ◽  
Wai-Hwa Khoh ◽  
Boon-Hong Wee ◽  
Jong-Dal Hong
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Properties ◽  
Reduced Graphene Oxide ◽  
Composite Electrode ◽  
Layer Structure ◽  
Free Standing ◽  
Vacuum Filtration ◽  
Supercapacitor Application ◽  
Filtration System ◽  
Reduced Graphene

A rGO/TiO2 free standing film has been fabricated via a simple and facile vacuum filtration system. The composite electrode showed improved electrochemical properties compared to the pure rGO due to the highly expanded layer-structure.

Chemical reduction and removal of Cr(vi) from acidic aqueous solution by ethylenediamine-reduced graphene oxide

2012 ◽  
Vol 22 (13) ◽  
pp. 5914 ◽  
Author(s):  
Hui-Ling Ma ◽  
Youwei Zhang ◽  
Qi-Hui Hu ◽  
Dong Yan ◽  
Zhong-Zhen Yu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Reduction ◽  
Acidic Aqueous Solution ◽  
Reduced Graphene

scholarly journals Synthesis and characterization of free-standing activated carbon/reduced graphene oxide film electrodes for flexible supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (71) ◽  
pp. 45066-45074 ◽  
Author(s):  
Lanshu Xu ◽  
Yue Li ◽  
Mengying Jia ◽  
Qiang Zhao ◽  
Xiaojuan Jin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Activated Carbon ◽  
Reduced Graphene Oxide ◽  
Composite Films ◽  
Free Standing ◽  
Filtration Process ◽  
Vacuum Filtration ◽  
Reduced Graphene ◽  
Binder Free

Free-standing, binder-free and flexible activated carbon/reduced graphene oxide (AC/rGO) composite films with various ratios were fabricated via a facile vacuum-filtration process.

scholarly journals Free-standing reduced graphene oxide (rGO) membrane for salt-rejecting solar desalination via size effect

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4601-4608 ◽  
Author(s):  
Pengyu Zhuang ◽  
Hanyu Fu ◽  
Ning Xu ◽  
Bo Li ◽  
Jun Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Conversion Efficiency ◽  
High Salinity ◽  
Interlayer Spacing ◽  
Structural Instability ◽  
Solar Thermal ◽  
Free Standing ◽  
Solar Desalination ◽  
Reduced Graphene

AbstractInterfacial solar vapor generation has revived the solar-thermal-based desalination due to its high conversion efficiency of solar energy. However, most solar evaporators reported so far suffer from severe salt-clogging problems during solar desalination, leading to performance degradation and structural instability. Here, we demonstrate a free-standing salt-rejecting reduced graphene oxide (rGO) membrane serving as an efficient, stable, and antisalt-fouling solar evaporator. The evaporation rate of the membrane reaches up to 1.27 kg m−2 h−1 (solar–thermal conversion efficiency ∼79%) under one sun, out of 3.5 wt% brine. More strikingly, due to the tailored narrow interlayer spacing, the rGO membrane can effectively reject ions, preventing salt accumulation even for high salinity brine (∼8 wt% concentration). With enabled salt-antifouling capability, flexibility, as well as stability, our rGO membrane serves as a promising solar evaporator for high salinity brine treatment.

scholarly journals A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 594 ◽  
Author(s):  
Mara Serrapede ◽  
Marco Fontana ◽  
Arnaud Gigot ◽  
Marco Armandi ◽  
Glenda Biasotto ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Impedance ◽  
Chemical Reduction ◽  
Low Cost ◽  
Xps Analysis ◽  
3D Scaffold ◽  
Energy Storage Devices ◽  
Reduced Graphene

A simple, low cost, and “green” method of hydrothermal synthesis, based on the addition of l-ascorbic acid (l-AA) as a reducing agent, is presented in order to obtain reduced graphene oxide (rGO) and hybrid rGO-MoO2 aerogels for the fabrication of supercapacitors. The resulting high degree of chemical reduction of graphene oxide (GO), confirmed by X-Ray Photoelectron Spectroscopy (XPS) analysis, is shown to produce a better electrical double layer (EDL) capacitance, as shown by cyclic voltammetric (CV) measurements. Moreover, a good reduction yield of the carbonaceous 3D-scaffold seems to be achievable even when the precursor of molybdenum oxide is added to the pristine slurry in order to get the hybrid rGO-MoO2 compound. The pseudocapacitance contribution from the resulting embedded MoO2 microstructures, was then studied by means of CV and electrochemical impedance spectroscopy (EIS). The oxidation state of the molybdenum in the MoO2 particles embedded in the rGO aerogel was deeply studied by means of XPS analysis and valuable information on the electrochemical behavior, according to the involved redox reactions, was obtained. Finally, the increased stability of the aerogels prepared with l-AA, after charge-discharge cycling, was demonstrated and confirmed by means of Field Emission Scanning Electron Microscopy (FESEM) characterization.

Chemically reduced graphene oxide-coated knitted fabric imparted conductivity and outstanding hydrophobicity

2021 ◽  
pp. 004051752199547
Author(s):  
Min Hou ◽  
Xinghua Hong ◽  
Yanjun Tang ◽  
Zimin Jin ◽  
Chengyan Zhu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Reduction ◽  
Knitted Fabric ◽  
Mesh Structure ◽  
Reduced Graphene ◽  
Chemically Reduced Graphene Oxide ◽  
Modified Hummers Method

Functionalized knitted fabric, as a kind of flexible, wearable, and waterproof material capable of conductivity, sensitivity and outstanding hydrophobicity, is valuable for multi-field applications. Herein, the reduced graphene oxide (RGO)-coated knitted fabric (polyester/spandex blended) is prepared, which involves the use of graphite oxide (GO) by modified Hummers method and in-situ chemical reduction with hydrazine hydrate. The treated fabric exhibits a high electrical conductivity (202.09 S/cm) and an outstanding hydrophobicity (140°). The outstanding hydrophobicity is associated with the morphology of the fabric and fiber with reference to pseudo-infiltration. These properties can withstand repeated bending and washing without serious deterioration, maintaining good electrical conductivity (35.70 S/cm) and contact angle (119.39°) after eight standard washing cycles. The material, which has RGO architecture and continuous loop mesh structure, can find wide use in smart garment applications.

scholarly journals Transformation of hydroquinone to benzoquinone mediated by reduced graphene oxide in aqueous solution

Carbon ◽  
2015 ◽  
Vol 89 ◽  
pp. 74-81 ◽  
Author(s):  
Chunmei Li ◽  
Lingyun Li ◽  
Lixiang Sun ◽  
Zhiguo Pei ◽  
Jieli Xie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene
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