Synthesis and Application of Magnetic Graphene Oxide Modified with 8-Hydroxyquinoline for Extraction and Preconcentration of Trace Heavy Metal Ions

2017 ◽  
Vol 2 (3) ◽  
pp. 1282-1289 ◽  
Author(s):  
Zohreh Dahaghin ◽  
Hassan Zavvar Mousavi ◽  
S. Maryam Sajjadi
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene

Fabrication of poly(β-cyclodextrin)-conjugated magnetic graphene oxide by surface-initiated RAFT polymerization for synergetic adsorption of heavy metal ions and organic pollutants

2019 ◽  
Vol 7 (5) ◽  
pp. 2055-2065 ◽  
Author(s):  
Jingjing Wang ◽  
Wenhui Zhang ◽  
Jun Wei
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Organic Pollutants ◽  
Heavy Metal Ions ◽  
Raft Polymerization ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene

Synergetic adsorption of Cd2+ and SMT was realized on poly(β-cyclodextrin)-conjugated magnetic graphene oxide, which was fabricated by surface-initiated RAFT polymerization.

Graphene oxide modified thiosemicarbazide nanocomposite as an effective eliminator for heavy metal ions

2020 ◽  
pp. 114790
Author(s):  
Haya A. Abubshait ◽  
Ahmed A. Farag ◽  
Mohamed A. El-Raouf ◽  
Nabel A. Negm ◽  
Eslam A. Mohamed
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Heavy Metal Ions

Graphene oxide-based electrochemical sensor: a platform for ultrasensitive detection of heavy metal ions

RSC Advances ◽  
2014 ◽  
Vol 4 (47) ◽  
pp. 24653-24657 ◽  
Author(s):  
Xuezhong Gong ◽  
Yunlong Bi ◽  
Yihua Zhao ◽  
Guozhen Liu ◽  
Wey Yang Teoh
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Gold Surface ◽  
Ultrasensitive Detection ◽  
Control Electrode ◽  
Graphene Oxide Sheets

Facile functionalization of graphene oxide sheets on gold surface results in complexation-enhanced electrochemical detection of heavy metal ions, shown here for Pb2+, Cu2+ and Hg2+, with improved detection limits by two orders of magnitude relative to the control electrode.

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.

Polymer brushes on graphene oxide for efficient adsorption of heavy metal ions from water

2019 ◽  
Vol 136 (43) ◽  
pp. 48156 ◽  
Author(s):  
Dejian Liu ◽  
Congcong Ding ◽  
Fangting Chi ◽  
Ning Pan ◽  
Jun Wen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Polymer Brushes ◽  
Heavy Metal Ions
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