study on graphene-oxide-based polyacrylamide composite

Study on graphene-oxide-based polyacrylamide composite

Study on graphene-oxide-based polyacrylamide composite hydrogels Article in Composites Part A Applied Science and Manufacturing 43(9):1476–1481 · September 2012 with 115 Reads How we measure

Get Price
graphene oxide–ipdi–ag/zno@hydroxypropyl cellulose

Graphene Oxide–IPDI–Ag/ZnO@Hydroxypropyl Cellulose

Polyacrylamide/reduced graphene oxide-Ag nanocomposite as highly efficient antibacterial transparent film Mahdavi, Hossein; Rahmani, Ozra; Shahverdi, Ahmad Reza Journal of the Iranian Chemical Society ( 2017 ), 14 ( 1 ), 37-46 CODEN: JICSCJ ; ISSN: 1735-207X .

Get Price
graphene oxide–ipdi–ag/zno@hydroxypropyl cellulose

Graphene Oxide–IPDI–Ag/ZnO@Hydroxypropyl Cellulose

In this study, preparation and characterization of polyacrylamide/reduced graphene oxide-Ag (PAM/rGO-Ag) nanocomposites as a new nanocomposite film were investigated.

Get Price
crystals | free full-text | effect of ag/rgo

Crystals | Free Full-Text | Effect of Ag/rGO

A facile hydrothermal method was employed to synthesize silver–reduced graphene oxide (Ag/rGO) plasmon-modified SnO2 composite, by incorporating Ag–reduced graphene oxide (Ag/rGO) into SnO2 nanorods as a photoanode for assembling a self-powered ultraviolet photodetector (UVPD). The as-synthesized samples were investigated in detail by X-ray diffraction (XRD), scanning electron microscopy

Get Price
surprising conversion of nanocomposite hydrogels with high

Surprising conversion of nanocomposite hydrogels with high

Hossein Mahdavi, Ozra Rahmani and Ahmad Reza Shahverdi, Polyacrylamide/reduced graphene oxide-Ag nanocomposite as highly efficient antibacterial transparent film, Journal of the Iranian Chemical Society, 14, 1, (37), (2017).

Get Price
one-step fabrication of highly dispersed ag nanoparticles

One-step fabrication of highly dispersed Ag nanoparticles

The preliminary investigation of the formation of Ag NPs in the resulted samples was carried out by UV–vis adsorption spectra analysis. The UV–vis adsorption spectra of GO, Ag/N-rGO heterogeneous nanostructures and Ag/N-rGO prepared without PVP were depicted in Fig. 2a. In the spectrum of GO, the peak arises from the л-л* transitions of the aromatic C C bonds centered at 229 nm, and the

Get Price
graphene oxide: preparation, functionalization,

Graphene Oxide: Preparation, Functionalization,

Reduced Graphene Oxide-Induced Recrystallization of NiS Nanorods to Nanosheets and the Improved Na-Storage Properties. Inorganic Chemistry 2014, 53 (7) , 3511-3518. DOI: 10.1021/ic402948s. Qingshan Zhao, Chan Bai, Wenfeng Zhang, Yang Li, Guoliang Zhang, Fengbao Zhang, and Xiaobin Fan .

Get Price
photothermally sensitive poly(n‐isopropylacrylamide

Photothermally Sensitive Poly(N‐isopropylacrylamide

Jing Chen, Qing Luo, Xiao Zhen Ma, Poly( N -isopropylacrylamide)@graphene oxide-Ag responsive hydrogels. Characterization and smart tunable catalytic activity , Journal of Macromolecular Science, Part A, 10.1080/10601325.2019.1618192, (1-9), (2019).

Get Price
graphene oxide–ipdi–ag/zno@hydroxypropyl cellulose

Graphene Oxide–IPDI–Ag/ZnO@Hydroxypropyl Cellulose

In this study, preparation and characterization of polyacrylamide/reduced graphene oxide-Ag (PAM/rGO-Ag) nanocomposites as a new nanocomposite film were investigated.

Get Price
colloidal suspensions of highly reduced graphene oxide

Colloidal Suspensions of Highly Reduced Graphene Oxide

Two different sets of solubility parameters are used to rationalize when stable colloidal suspensions of graphene oxide sheets and, separately, of reduced graphene oxide sheets in a given solvent type are possible and when they are not.

Get Price
electrochemical sensor based on polyamide 6/polypyrrole

Electrochemical sensor based on polyamide 6/polypyrrole

Reduced graphene oxide (RGO) falls within this class of materials and present excellent adsorptivity and conductivity, high strength and good flexibility for chemical modification [20–24]. The RGO can be reduced on various substrates and through different processes, including electrochemical and chemical processes [25, 26].

Get Price
graphene/polyaniline nanofiber composites as

Graphene/Polyaniline Nanofiber Composites as

Chemically modified graphene and polyaniline (PANI) nanofiber composites were prepared by in situ polymerization of aniline monomer in the presence of graphene oxide under acid conditions. The obtained graphene oxide/PANI composites with different mass ratios were reduced to graphene using hydrazine followed by reoxidation and reprotonation of the reduced PANI to give the graphene/PANI

Get Price
tuning the mechanical properties of graphene oxide paper

Tuning the Mechanical Properties of Graphene Oxide Paper

No optimal water concentration could be found for the PVA-graphene oxide nanocomposite papers, as dehydration of these structures continually enhances stiffness until a final water content of ∼7 wt % (additional water cannot be removed from the system even after 12 h of annealing).

Get Price
supercapacitors from free-standing polypyrrole/graphene

Supercapacitors from Free-Standing Polypyrrole/Graphene

Interfacial/in situ oxidative polymerization of polypyrrole in the presence of functionalized graphene sheets produces high-quality composites for supercapacitors, as analyzed by electrochemical impedance spectroscopy and cyclic voltammetry analysis. The synergistic interaction induced by the growth of p-type polypyrrole on the surface of negatively charged carboxylate functionalized graphene

Get Price
synthesis of cationic polyacrylamide/silica nanocomposites

Synthesis of cationic polyacrylamide/silica nanocomposites

Polyacrylamide (PAM)-silica microspheres with core-shell structure are synthesized by inverse microemulsion polymerization in this study for the application of water shut-off due to high strength

Get Price
recent advances in antimicrobial hydrogels containing

Recent Advances in Antimicrobial Hydrogels Containing

Recent Advances in Antimicrobial Hydrogels Containing Metal Ions and Metals/Metal Oxide Nanoparticles Article (PDF Available) in Polymers 9(12):636 · November 2017 with 728 Reads

Get Price
recent developments of two-dimensional graphene-based

Recent developments of two-dimensional graphene-based

Along with its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO) are two most common forms of functionalized graphene with oxygen-containing surface groups (i.e., hydroxyl, carboxyl and epoxy groups), which possess poorly defined compositions due to different degrees of oxidation .

Get Price
carbon-based polymer nanocomposite membranes for oily

Carbon-based polymer nanocomposite membranes for oily

A novel reduced graphene oxide-based composite membrane prepared via a facile deposition method for multifunctional applications: oil/water separation and cationic dyes removal. Sep. Purif.

Get Price
hydrogels of polyaniline with graphene oxide for highly

Hydrogels of polyaniline with graphene oxide for highly

The schematic representation for the synthesis of PANI-GO hydrogels is shown in Scheme 1.PANI-GO hydrogels were prepared by in situ polymerization of aniline in presence of GO followed by gelation at 80 °C. We have synthesized three different compositions of PANI-GO hydrogels with different weight ratios of GO to aniline monomer such as 20:80, 50:50 and 80:20 and named as PANI-GO-I, PANI-GO

Get Price
deoxygenation of exfoliated graphite oxide under alkaline

Deoxygenation of Exfoliated Graphite Oxide under Alkaline

Graphene can be directly prepared by the fast deoxygenation of exfoliated graphite oxide in strong alkaline solutions at low temperatures (50–90 °C), in the absence of reducing agents. This study opens an opportunity towards the production of processable graphene on an industrial scale.

Get Price
graphene/polyaniline nanofiber composites as

Graphene/Polyaniline Nanofiber Composites as

Chemically modified graphene and polyaniline (PANI) nanofiber composites were prepared by in situ polymerization of aniline monomer in the presence of graphene oxide under acid conditions. The obtained graphene oxide/PANI composites with different mass ratios were reduced to graphene using hydrazine followed by reoxidation and reprotonation of the reduced PANI to give the graphene/PANI

Get Price
graphene/graphene oxide and carbon nanotube based sensors

Graphene/Graphene Oxide and Carbon Nanotube Based Sensors

Graphene oxide (GO) and carbon nanotubes (CNTs) are promising and novel carbon based materials that have high potential for fabrication of toxic detection sensors due to its high chemical stability, large specific surface area, abundant pore size distribution, ease of functionalization and feasibility of mass production.

Get Price
graphene is hydrophilic, not hydrophobic

Graphene is hydrophilic, not hydrophobic

Engineers looking to leverage graphene's properties will have to think about a totally new starting point; graphene is hydrophilic, not hydrophobic. The new Dutch study comes on the heels of a previous report coming out of Brazil that addressed a raging debate on graphene defects, which can affect its interactions with water.

Get Price
graphene-based heterojunction photocatalysts - sciencedirect

Graphene-based heterojunction photocatalysts - ScienceDirect

1. Introduction. Since the first reported photocatalytic production of H 2 from water in 1972 using TiO 2, a variety of semiconductor materials have been developed for the renewable production of solar fuels , , .The interesting heterogeneous photocatalysis, including the photocatalytic water splitting (i.e., water reduction and oxidation), degradation of pollutants and carbon dioxide

Get Price