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.

A self-supported electrochemical sensor for simultaneous sensitive detection of trace heavy metal ions based on PtAu alloy/carbon nanofibers

2017 ◽  
Vol 9 (48) ◽  
pp. 6801-6807 ◽  
Author(s):  
SongGe Zhang ◽  
Han Zhu ◽  
PiMing Ma ◽  
Fang Duan ◽  
WeiFu Dong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Carbon Nanofibers ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
High Sensitivity ◽  
Sensitive Detection ◽  
Alloy Carbon

The key issue in efficient electrochemical detection of trace heavy metal ions (HMIs) is to design hierarchical nanostructure electrodes with high sensitivity and low detection limit.

scholarly journals Nickel tungstate–graphene nanocomposite for simultaneous electrochemical detection of heavy metal ions with application to complex aqueous media

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42146-42158 ◽  
Author(s):  
Rudra Kumar ◽  
Thiruvelu Bhuvana ◽  
Ashutosh Sharma
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Transition Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Aqueous Media ◽  
Reduced Graphene ◽  
Graphene Nanocomposite ◽  
First Time

We show for the first time, a composite of carbon and binary transition metal oxide, in the form of reduced graphene oxide and nickel tungstate (RGO/NiWO4) nanocomposite, is an effective material for electrochemical detection of heavy metal ions.

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
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