scholarly journals One-step synthesis of Fe2O3 nano-rod modified reduced graphene oxide composites for effective Cr(vi) removal: removal capability and mechanism

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20582-20592 ◽  
Author(s):  
Chaopei Kong ◽  
Miao Li ◽  
Jiacheng Li ◽  
Xuejiao Ma ◽  
Chuanping Feng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Hexavalent Chromium ◽  
Reduced Graphene ◽  
Aqueous Environments ◽  
One Step ◽  
Oxide Composites

Reduced graphene oxide (rGO) supported Fe2O3 nanorod composites were prepared via a one-step hydrothermal method and further utilized for hexavalent chromium (Cr(vi)) removal from aqueous environments.

Simultaneous Electrochemical Detection of Multiple Heavy-Metal Ions Based on Furfural/Reduced Graphene Oxide Composites

2021 ◽  
Author(s):  
Xiaoyun Xu ◽  
Xiaoyi Lv ◽  
Fei Tan ◽  
Yanping Li ◽  
Chao Geng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Reduced Graphene Oxide ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Reduced Graphene ◽  
The Matrix ◽  
One Step ◽  
Oxide Composites

Abstract An efficient and sensitive electrochemical sensor for simultaneous detection of heavy metal ions was developed based on furfural/reduced graphene oxide composites (FF/RGO). The preparation of FF/RGO were performed through a one-step high-pressure assisted hydrothermal treatment, which is recommended as a green, convenient, and efficient way for the reduction of graphene oxide and the production of FF/RGO composites. RGO not only serves as the skeleton for furfural loading but also improves the conductivity of the composites in the matrix. FF/RGO with large specific surface area and abundant oxygen-containing functional groups was used to provide more binding sites for the effificient adsorption of heavy-metal ions due to the interaction between hydrophilic groups (-COOH, -OH, and -CHO) and metal cations. The developed sensor showed identifiable electrochemical response toward the heavy metal ions separately and simultaneously, exhibiting superior stability, outstanding sensitivity, selectivity and excellent analytical performance. Impressively, the sensor developed in this experiment has been successfully applied to the simultaneous determination of various heavy metal ions in actual samples, which has definitely exhibited a promising prospect in practical application.

scholarly journals Synthesis of novel cyclodextrin-modified reduced graphene oxide composites by a simple hydrothermal method

RSC Advances ◽  
2018 ◽  
Vol 8 (66) ◽  
pp. 37623-37630 ◽  
Author(s):  
Qingli Huang ◽  
MingYan Li ◽  
LiLi Wang ◽  
Honghua Yuan ◽  
Meng Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cancer Therapy ◽  
Drug Release ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Sustained Drug Release ◽  
Simple Hydrothermal Method ◽  
Ph Response ◽  
Reduced Graphene ◽  
Oxide Composites

The rGO@CD@PEG@FA nanocomposite showed the stimulative effect of heat, pH response, and sustained drug release for cancer therapy

Pseudocapacitance and excellent cyclability of 2,5-dimethoxy-1,4-benzoquinone on graphene

2016 ◽  
Vol 9 (8) ◽  
pp. 2586-2594 ◽  
Author(s):  
Muhammad Boota ◽  
Chi Chen ◽  
Matthieu Bécuwe ◽  
Ling Miao ◽  
Yury Gogotsi
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
Covalent Functionalization ◽  
Redox Active ◽  
Reduced Graphene ◽  
One Step ◽  
Volumetric Capacitance ◽  
Graphene Oxide Sheets

Non-covalent functionalization of 2,5-dimethoxy-1,4-benzoquinone and hydroquinone on reduced graphene oxide sheets led to the formation of a redox-active three-dimensional gel architecture via a one-step hydrothermal method, where the former exhibited high gravimetric and volumetric capacitance and 99% capacitance retention after 25 000 cycles at 50 mV s−1.

scholarly journals One-step hydrothermal synthesis of NiS/MoS2-rGO composites and their application as catalysts for hydrogen evolution reaction

2016 ◽  
Vol 09 (05) ◽  
pp. 1650058 ◽  
Author(s):  
Huaping Wu ◽  
Ye Qiu ◽  
Junma Zhang ◽  
Guozhong Chai ◽  
Congda Lu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Layer Structures ◽  
Reduced Graphene ◽  
One Step

The composites of sulphide and reduced graphene oxide (NiS/MoS2-rGO) were synthesized through a facile solvent-assisted hydrothermal method. The introduction of NiS was paramount not only in enhancing the conductivity of whole catalysts but also in modulating the layer structures of MoS2 with additional active sites. Moreover, the NiS and rGO functioned together in controlling the morphology of as-prepared composites, resulting in uniformly distributed NiS/MoS2 nanosheets perpendicular to rGO scaffold. This further contributed to the excellent hydrogen evolution performance of the composites with a small onset overpotential of 80[Formula: see text]mV and Tafel slope as low as 65[Formula: see text]mV/decade.

Hydrothermal synthesis of Fe3O4/RGO composites and investigation of electrochemical performances for energy storage applications

RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44777-44785 ◽  
Author(s):  
Sanjit Saha ◽  
Milan Jana ◽  
Pranab Samanta ◽  
Naresh Chandra Murmu ◽  
Nam Hoon Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Reduced Graphene Oxide ◽  
Electrochemical Performances ◽  
Reduced Graphene ◽  
One Step ◽  
Energy Storage Applications ◽  
Highly Porous

Highly porous nano-structured Fe3O4 particles were successfully prepared on the surface of reduced graphene oxide (RGO) sheets through a one-step hydrothermal method.

Ionic liquid-assisted one-step hydrothermal synthesis of TiO2-reduced graphene oxide composites

Nano Research ◽  
2011 ◽  
Vol 4 (8) ◽  
pp. 795-806 ◽  
Author(s):  
Jianfeng Shen ◽  
Min Shi ◽  
Bo Yan ◽  
Hongwei Ma ◽  
Na Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
One Step ◽  
Oxide Composites

One-step synthesis of hollow porous Fe3O4 beads–reduced graphene oxide composites with superior battery performance

2012 ◽  
Vol 22 (34) ◽  
pp. 17656 ◽  
Author(s):  
Yu Chen ◽  
Bohang Song ◽  
Xiaosheng Tang ◽  
Li Lu ◽  
Junmin Xue
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
One Step ◽  
Oxide Composites
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