One-step microwave synthesis of carbon dots for highly sensitive and selective detection of copper ions in aqueous solution

2018 ◽  
Vol 42 (4) ◽  
pp. 3097-3101 ◽  
Author(s):  
Qiaoling Liu ◽  
Nan Zhang ◽  
Haoying Shi ◽  
Wenyan Ji ◽  
Xiaoqian Guo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Microwave Synthesis ◽  
Carbon Dots ◽  
Copper Ions ◽  
Selective Detection ◽  
Recognition Process ◽  
Highly Sensitive ◽  
One Step

Schematic illustration of the synthesis of CDs and the recognition process for Cu2+.

A novel turn-on fluorescent sensor for highly selective detection of Al(iii) in an aqueous solution based on simple electrochemically synthesized carbon dots

2017 ◽  
Vol 9 (26) ◽  
pp. 3941-3948 ◽  
Author(s):  
Xu-Cheng Fu ◽  
Jiang-Zhou Jin ◽  
Ju Wu ◽  
Jun-Cheng Jin ◽  
Cheng-Gen Xie
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Carbon Dots ◽  
Fluorescent Sensor ◽  
Selective Detection ◽  
Turn On ◽  
One Step ◽  
Electrolysis Method

Photoluminescent C-dots made by a one-step electrolysis method make a selective fluorescent sensor for Al3+ over other metal ions.

A Bright Nitrogen-doped-Carbon-Dots based Fluorescent Biosensor for Selective Detection of Copper Ions

2021 ◽  
Vol 5 (1) ◽  
pp. 84-92
Author(s):  
Shuting Chen ◽  
Chaoqun Chen ◽  
Jian Wang ◽  
Fang Luo ◽  
Longhua Guo ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Copper Ions ◽  
Selective Detection ◽  
Nitrogen Doped ◽  
Fluorescent Biosensor ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

scholarly journals Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions

The Analyst ◽  
2021 ◽  
Vol 146 (20) ◽  
pp. 6297-6305
Author(s):  
Qinglan Miao ◽  
Ji Qi ◽  
Yuanyuan Li ◽  
Xinxia Fan ◽  
Dongmei Deng ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Carbon Dots ◽  
Active Sites ◽  
Copper Ions ◽  
Fluorescent Detection ◽  
Zn Doping ◽  
Highly Sensitive ◽  
Doped Carbon Dots

A novel paper-based chip that anchored zinc-doped carbon dots was constructed for sensitive and stable fluorescent detection of Cu2+. Zn doping increased the active sites for simplifying the modification of carbon dots.

Target induced aggregation of modified Au@Ag nanoparticles for surface enhanced Raman scattering and its ultrasensitive detection of arsenic(iii) in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 77755-77759 ◽  
Author(s):  
Bo Yang ◽  
Xiaochun Chen ◽  
Renyong Liu ◽  
Bianhua Liu ◽  
Changlong Jiang
Keyword(s):  
Aqueous Solution ◽  
Spectroscopic Technique ◽  
Ultrasensitive Detection ◽  
Selective Detection ◽  
Raman Spectroscopic ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Induced Aggregation

A highly sensitive and selective detection of As(iii) was reported by target induced aggregation of nanoparticles enhanced Raman spectroscopic technique.

Highly sensitive and selective detection of silver(i) in aqueous solution with silver(i)-specific DNA and Sybr green I

The Analyst ◽  
2013 ◽  
Vol 138 (7) ◽  
pp. 2057 ◽  
Author(s):  
Qing Yang ◽  
Fan Li ◽  
Yan Huang ◽  
Hui Xu ◽  
Linsheng Tang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Sybr Green ◽  
Sybr Green I ◽  
Selective Detection ◽  
Highly Sensitive

An electrochemical sensor for highly sensitive detection of copper ions based on a new molecular probe Pi-A decorated on graphene

2017 ◽  
Vol 9 (4) ◽  
pp. 618-624 ◽  
Author(s):  
Liuqing Yang ◽  
Na Huang ◽  
Liyan Huang ◽  
Meiling Liu ◽  
Haitao Li ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Electrochemical Method ◽  
Copper Ions ◽  
Molecular Probe ◽  
Selective Detection ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

In this paper, a new electrochemical sensor based on a new fluorescent probe N-(2-(1-(p-tolyl)-1H-phenanthro[9,10-d]imidazol-2-yl)phenyl)picolinamide (Pi-A) decorated reduced graphene oxide (RGO) modified glassy carbon electrode (GCE) was developed for highly selective detection of copper ions using the electrochemical method.

scholarly journals One-Step Synthesis of the Nitrogen and Sulfur Codoped Carbon Dots for Detection of Lead and Copper Ions in Aqueous Solution

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Hui Gao ◽  
Yuqian Pang ◽  
Lei Li ◽  
Chun Zhu ◽  
Chaoqun Ma ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Carbon Dots ◽  
Copper Ions ◽  
Size Distributions ◽  
Colorimetric Sensing ◽  
Emission Activity ◽  
One Step ◽  
Ft Ir ◽  
The Fourier Transform ◽  
Metal Ions Detection

Herein, by using the green and cheap L-cysteine as the precursor, nitrogen and sulfur codoped carbon dots (NS-CDs) were synthesized via a facile one-step hydrothermal method. The obtained NS-CDs showed the relatively narrow size distributions (2.1~3.9 nm) with the lattice spacing of 0.29 nm, as well as the excitation-dependent photoluminescence (PL) emission activity with the quantum yield (QY) of 18%. More interestingly, the PL intensity of NS-CDs was quenched by the addition of copper or lead ions (Cu2+ or Pb2+), which was shown in the tradition detection method by PL spectra. The NS-CDs exhibited ultrasensitive colorimetric sensing capability for both Cu2+ and Pb2+ by the color variance using naked eyes without any further treating. Two different coupling ways for detecting Pb2+ and Cu2+ were induced by the analysis of the Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). And the as-prepared NS-CDs showed their potential application in the heavy metal ions detection for the wastewater determination.

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