Platinum-3D Graphene Oxide Areogel Nanocomposite for Direct Electrochemistry and Electrocatalysis of Horseradish Peroxidase

2018 ◽  
Vol 165 (14) ◽  
pp. B713-B719 ◽  
Author(s):  
Xueliang Niu ◽  
Hui Xie ◽  
Guiling Luo ◽  
Yongling Men ◽  
Weili Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Horseradish Peroxidase ◽  
Direct Electrochemistry ◽  
3D Graphene

3D Graphene Oxide Hydrogel Derived from Waste Toner as Adsorbent

2021 ◽  
Vol 21 (10) ◽  
pp. 5275-5281
Author(s):  
Zhengshan Tian ◽  
Lijuan Sun ◽  
Hao Tian ◽  
Kesheng Cao ◽  
Suzhen Bai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Removal Efficiency ◽  
Raw Materials ◽  
Three Dimensions ◽  
One Pot ◽  
Adsorptive Property ◽  
3D Graphene ◽  
Hummers Method ◽  
Removal Capacity ◽  
Living Things

Waste toner powders are considered as hazardous materials to human and living things, and should be properly recycled by many effective ways due to their fine particle sizes and complex components. In this paper, waste toner powders were used as raw materials to successfully synthesize three dimensions (3D) graphene oxide (GO) hydrogel by means of a one-pot chemical transformation based on the improved Hummers’ method. The obtained 3D GO hydrogel has porous structure and abundant oxygen-containing functional groups because of the inherent 3D solid structure of waste toner powder and the strong oxidation process of the improved Hummers’ method. Interestingly, the as-prepared 3D GO hydrogel with excellent adsorptive property could quickly remove Pb(II) ions (100 mg/L, removal efficiency of 96% and removal capacity of 144 mg/g) and methylene blue (50 mg/L, removal efficiency of 97% and removal capacity of 48 mg/g) from water, respectively. The preparation process of 3D GO hydrogel was simple and easy to operate, and the output can be moderately mass produced, thus it would provide a new and effective disposal way for the recycling and reusing of waste toner.

One-Pot Transformation of Waste Toner Powder into 3D Graphene Oxide Hydrogel

2018 ◽  
Vol 7 (1) ◽  
pp. 496-501 ◽  
Author(s):  
Zhengshan Tian ◽  
Kesheng Cao ◽  
Suzhen Bai ◽  
Guoxu He ◽  
Jitao Li
Keyword(s):  
Graphene Oxide ◽  
One Pot ◽  
3D Graphene

Three-Dimensional Holey-Graphene Architectures for Highly Sensitive Enzymatic Electrochemical Determination of Hydrogen Peroxide

2019 ◽  
Vol 19 (11) ◽  
pp. 7404-7409 ◽  
Author(s):  
Aihua Jing ◽  
Gaofeng Liang ◽  
Hao Shi ◽  
Yixin Yuan ◽  
Quanxing Zhan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Three Dimensional ◽  
Electrochemical Determination ◽  
High Specific Surface Area ◽  
3D Graphene ◽  
Practical Applications ◽  
Transmission Electron ◽  
Mild Defect

Three-dimensional (3D) graphene with high specific surface area, excellent conductivity and designed porosity is essential for many practical applications. Herein, holey graphene oxide with nano pores was facilely prepared via a convenient mild defect-etching reaction and then fabricated to 3D nanostructures via a reduction method. Based on the 3D architectures, a novel enzymatic hydrogen peroxide sensor was successfully fabricated. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) were used to characterize the 3D holey graphene oxide architectures (3DHGO). Cyclic voltammetry (CV) was used to evaluate the electrochemical performance of 3DHGO at glassy carbon electrode (GCE). Excellent electrocatalytic activity to the reduction of H2O2 was observed, and a linear range of 5.0×10-8~5.0×10-5 M with a detection limit of 3.8×10-9 M was obtained. These results indicated that 3DHGO have potential as electrochemical biosensors.

Accurate Identification and Selective Removal of Rotavirus Using a Plasmonic–Magnetic 3D Graphene Oxide Architecture

2014 ◽  
Vol 5 (18) ◽  
pp. 3216-3221 ◽  
Author(s):  
Zhen Fan ◽  
Brian Yust ◽  
Bhanu Priya Viraka Nellore ◽  
Sudarson Sekhar Sinha ◽  
Rajashekhar Kanchanapally ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Selective Removal ◽  
Accurate Identification ◽  
3D Graphene

Mimicking Horseradish Peroxidase and NADH Peroxidase by Heterogeneous Cu2+-Modified Graphene Oxide Nanoparticles

Nano Letters ◽  
2017 ◽  
Vol 17 (3) ◽  
pp. 2043-2048 ◽  
Author(s):  
Shan Wang ◽  
Rémi Cazelles ◽  
Wei-Ching Liao ◽  
Margarita Vázquez-González ◽  
Amani Zoabi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Horseradish Peroxidase ◽  
Oxide Nanoparticles ◽  
Modified Graphene Oxide ◽  
Nadh Peroxidase ◽  
Modified Graphene
Sign in / Sign up

Export Citation Format

Share Document