Reductive Dechlorination of Carbon Tetrachloride in Aqueous Solutions Containing Ferrous and Copper Ions

2004 ◽  
Vol 38 (24) ◽  
pp. 6676-6684 ◽  
Author(s):  
R. A. Maithreepala ◽  
Ruey-an Doong
Keyword(s):  
Carbon Tetrachloride ◽  
Aqueous Solutions ◽  
Reductive Dechlorination ◽  
Copper Ions

scholarly journals An Investigation on Design and Characterization of a Highly Selective LED Optical Sensor for Copper Ions in Aqueous Solutions

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1099
Author(s):  
Sheng-Chun Hung ◽  
Chih-Cheng Lu ◽  
Yu-Ting Wu
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Copper Ions ◽  
Incident Light ◽  
Copper Ion ◽  
Intensity Change ◽  
Optical Absorbance ◽  
Sensing System ◽  
Optic Sensor ◽  
Cu Ions

The optical characteristics of copper ion detection, such as the photometric absorbance of specific wavelengths, exhibit significant intensity change upon incident light into the aqueous solutions with different concentrations of metal ions due to the electron transition in the orbit. In this study, we developed a low-cost, small-size and fast-response photoelectric sensing prototype as an optic sensor for copper (Cu) ions detection by utilizing the principle of optical absorption. We quantified the change of optical absorbance from infra-red (IR) light emitting diodes (LEDs) upon different concentrations of copper ions and the transmitted optical signals were transferred to the corresponding output voltage through a phototransistor and circuit integrated in the photoelectric sensing system. The optic sensor for copper (Cu) ions demonstrated not only excellent specificity with other metal ions such as cadmium (Cd), nickel (Ni), iron (Fe) and chloride (Cl) ions in the same aqueous solution but also satisfactory linearity and reproducibility. The sensitivity of the preliminary sensing system for copper ions was 29 mV/ppm from 0 to 1000 ppm. In addition, significant ion-selective characteristics and anti-interference capability were also observed in the experiments by the proposed approach.

Removal of Copper Ions from Aqueous Solutions via Adsorption on Carbon Nanocomposites

2015 ◽  
Vol 7 (28) ◽  
pp. 15674-15680 ◽  
Author(s):  
Anthony B. Dichiara ◽  
Michael R. Webber ◽  
William R. Gorman ◽  
Reginald E. Rogers
Keyword(s):  
Aqueous Solutions ◽  
Copper Ions ◽  
Carbon Nanocomposites

Biosorption of copper ions from aqueous solutions using the desert treeAcacia raddiana

2010 ◽  
Vol 21 (1-3) ◽  
pp. 323-327 ◽  
Author(s):  
M. F. Talhi ◽  
A. Cheriti ◽  
N. Belboukhari ◽  
L. Agha ◽  
C. Roussel
Keyword(s):  
Aqueous Solutions ◽  
Copper Ions

Fabrication of magnetic iron Oxide@Graphene composites for adsorption of copper ions from aqueous solutions

2018 ◽  
Vol 219 ◽  
pp. 30-39 ◽  
Author(s):  
Zhi-Feng Yang ◽  
Ling-Yun Li ◽  
Chien-Te Hsieh ◽  
Ruey-Shin Juang ◽  
Yasser Ashraf Gandomi
Keyword(s):  
Iron Oxide ◽  
Aqueous Solutions ◽  
Copper Ions ◽  
Magnetic Iron Oxide

scholarly journals Ultrafast reductive dechlorination of carbon tetrachloride by amorphous Fe78Si9B13 alloy

2019 ◽  
Vol 14 ◽  
pp. 102523 ◽  
Author(s):  
Changqin Zhang ◽  
Xiangyang Zhang ◽  
Shan Zhang ◽  
Hongyi Guo
Keyword(s):  
Carbon Tetrachloride ◽  
Reductive Dechlorination

scholarly journals Biosorption of copper ions from aqueous solutions by Spirulina platensis biomass

2014 ◽  
Vol 7 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Ali A. Al-Homaidan ◽  
Hadeel J. Al-Houri ◽  
Amal A. Al-Hazzani ◽  
Gehan Elgaaly ◽  
Nadine M.S. Moubayed
Keyword(s):  
Aqueous Solutions ◽  
Spirulina Platensis ◽  
Copper Ions
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