Enhanced Pseudocapacitive Performance of Chemically Deposited β-Ni(OH)2 Nanoflakes on 3D Graphene Oxide Framework

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.

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

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.8b03997 ◽

2018 ◽

Vol 7 (1) ◽

pp. 496-501 ◽

Cited By ~ 2

Author(s):

Zhengshan Tian ◽

Kesheng Cao ◽

Suzhen Bai ◽

Guoxu He ◽

Jitao Li

Keyword(s):

Graphene Oxide ◽

One Pot ◽

3D Graphene

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

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2019.16613 ◽

2019 ◽

Vol 19 (11) ◽

pp. 7404-7409 ◽

Cited By ~ 4

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.

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

The Journal of Physical Chemistry Letters ◽

10.1021/jz501402b ◽

2014 ◽

Vol 5 (18) ◽

pp. 3216-3221 ◽

Cited By ~ 21

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

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The efficient profiling of serum N-linked glycans by a highly porous 3D graphene composite

The Analyst ◽

10.1039/c9an01119f ◽

2019 ◽

Vol 144 (17) ◽

pp. 5261-5270 ◽

Cited By ~ 2

Author(s):

Huan Niu ◽

Xin Li ◽

Jiaxi Peng ◽

Hongyan Zhang ◽

Xingyun Zhao ◽

...

Keyword(s):

Graphene Oxide ◽

Phenol Formaldehyde ◽

Koh Activation ◽

Activation Process ◽

Graphene Oxide Nanosheets ◽

3D Graphene ◽

Graphene Composite ◽

Highly Porous

In this work, an enrichment approach to profile N-linked glycans was developed by utilizing a highly porous 3D graphene composite fabricated from the graphene oxide nanosheets and the phenol-formaldehyde polymer via a KOH activation process.

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Metal–organic framework derived 3D graphene decorated NaTi2(PO4)3 for fast Na-ion storage

Nanoscale ◽

10.1039/c9nr00610a ◽

2019 ◽

Vol 11 (15) ◽

pp. 7347-7357 ◽

Cited By ~ 8

Author(s):

Lei Wang ◽

Zhennan Huang ◽

Bo Wang ◽

Hao Luo ◽

Meng Cheng ◽

...

Keyword(s):

Graphene Oxide ◽

Self Assembly ◽

Metal Organic Framework ◽

Metal Organic Frameworks ◽

The Self ◽

3D Graphene ◽

Ion Storage ◽

Metal Organic ◽

Organic Framework

Titanium-based metal–organic frameworks have been used as an in situ etching template for the self-assembly of graphene oxide to construct NaTi2(PO4)3-rGO composite.

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Three-Dimensional Graphene Oxide-Supported Zinc Oxide Scaffold as a High-Efficiency Adsorbent for Desulfurization

NANO ◽

10.1142/s1793292020500599 ◽

2020 ◽

Vol 15 (05) ◽

pp. 2050059

Author(s):

Yan Liu ◽

Xiaojun Zhang ◽

Meiyan Yang ◽

Bowen Guo ◽

Jixiang Guo ◽

...

Keyword(s):

Zinc Oxide ◽

Graphene Oxide ◽

High Efficiency ◽

Porous Scaffold ◽

Specific Binding ◽

Three Dimensional ◽

3D Graphene ◽

Fcc Gasoline ◽

And Control ◽

Aryl Sulfides

Sulfur oxides are air pollutants derived mainly from the combustion of gasoline. Reducing the sulfur content of fluid catalytic cracking (FCC) gasoline is of key importance for the prevention and control of atmospheric pollution. We describe herein the fabrication and characterization of a porous, three-dimensional (3D) graphene oxide-supported zinc oxide (GO/ZnO) scaffold as an adsorbent for desulfurization with various model compounds and real FCC gasoline. The uniform and stable dispersion of ZnO nanoparticles on the surface of GO facilitates the specific binding of sulfides. Moreover, GO synergistically adsorbs aryl sulfides via [Formula: see text]–[Formula: see text] stacking interactions. The GO/ZnO nanosheets were further self-assembled into a 3D porous scaffold that effectively trapped sulfides and inhibited desorption. These scaffolds exhibited excellent desulfurization performance with maximum sulfur capacity up to 29.73[Formula: see text]mg S/g. This work provides a novel perspective on the fabrication of high-efficiency adsorbents for gasoline pretreatment.

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Facile fabrication of 3D ferrous ion crosslinked graphene oxide hydrogel membranes for excellent water purification

Environmental Science Nano ◽

10.1039/c9en00638a ◽

2019 ◽

Vol 6 (10) ◽

pp. 3060-3071 ◽

Cited By ~ 3

Author(s):

Zhangjingzhi Chen ◽

Jun Wang ◽

Xiaoguang Duan ◽

Yuanyuan Chu ◽

Xiaoyao Tan ◽

...

Keyword(s):

Graphene Oxide ◽

Water Purification ◽

High Surface ◽

Ferrous Ion ◽

Porous Structures ◽

Water Pollutants ◽

3D Graphene ◽

Surface Areas ◽

Hydrogel Membranes ◽

Facile Fabrication

3D graphene-based macrostructures have been recognized as promising candidates for adsorption and separation of water pollutants due to their well-defined porous structures and high surface areas.

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Patching laser-reduced graphene oxide with carbon nanodots

Nanoscale ◽

10.1039/c9nr01719d ◽

2019 ◽

Vol 11 (26) ◽

pp. 12712-12719 ◽

Cited By ~ 4

Author(s):

Volker Strauss ◽

Mit Muni ◽

Arie Borenstein ◽

Bolortuya Badamdorj ◽

Tobias Heil ◽

...

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Double Layer ◽

Electric Double Layer ◽

Carbon Nanodots ◽

Electric Double Layer Capacitor ◽

3D Graphene ◽

Precursor Material ◽

Double Layer Capacitor ◽

Reduced Graphene

The performance of electric double layer capacitor (EDLC) electrodes based on 3D-graphene obtained by laser-assisted reduction of graphene oxide (GO) is improved by addition of carbon nanodots (CND) to the GO precursor material.

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