electrosorption of metal ions from aquebous solutions nthu mscl adviser: c. h. liu c. he yeh s....
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Electrosorption of Metal ions
from Aquebous Solutions
NTHU MSCL
Adviser: C. H. Liu
C. He Yeh
S. Yiacoumi , T.-Y. Ying, and K.-L. Yang School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta, GA 30332-0512
Ion exchange Evaporation (thermal) Electrodialysis Reverse osmosis Porous electrodes
ElectrodepositedElectrosorption
Introduction & Background
Principle & Experiment
ElectrosorptionSurface area (monolayer but large area)Regeneration efficiencyLess energy consume, low cost
Requirementhigh surface area low electrical resistancegood polarizabilityno participation
Principle & Experiment
Carbon aerogelHighly porous, High surface area(400~1000m2/g)Low R( ≤40 m Ω)Controllable pore size (Na+,K+<2nm, 2~50nm)
Important electrosorption parameterspore size (available surface area)Capacitance (electrosorption per unit area )
Using carbon aerogel as electrodes
Principle & Experiment Mechanism on porous electrode
ElectricalChemical
Groundwater and Wastewater treatment InorganicRadionuclideMetal ionsAnions
Conclusion
Electrosorption is an ideal process for removing ions from aqueous solutions
Capability increases Increase of the initial solution concentration Increase of applied voltageProperties of the electrodes
Further Application
Capacitive Deionization of NaCl Solution using Four-Series Cells with Carbon Aerogel Composite Electrodes
Further Application
Secondary DEP buffer/de-ion preparation Whole blood DEP preparation Carbon aerogel as a scaffold
Further Application
Secondary DEP buffer/de-ion preparation Whole blood DEP preparation Carbon aerogel as a scaffold
"Carbon Aerogel Electrodes: Adsorption-Desorption and Regeneration Study for Purification of Water" Sanjay Tewari
"ELECTROSORPTION OF METAL IONS FROM AQUEOUS SOLUTIONS" S. Yiacoumi , T.-Y. Ying, and K.-L. Yang School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta, GA 30332-0512
"Removal of Ni and Cu ions from aqueous solutions by means of a hybrid electrosorption/electrodialysis process" VD Grebenyuk1, NA Linkov2 and VM Linkov2* 1 Institute of Colloid and Water Chemistry, Ukranian National Academy of Sciences, Kiev-142, Ukraine2 Department of Chemistry, University of the Western Cape, Bellville 7535, South Africa
Reference
"Separation of Metal Ions from Liquid Waste" Dr. G. Glasgow; [email protected]; 937-766-2020Applied Sciences, Inc.PO Box 579Cedarville, OH 45314E. Kennel: [email protected]; 937-766-2020Applied Sciences, Inc.PO Box 579Cedarville, OH 45314Dr. J. Zondlo; [email protected]; 304-293-2111Department of Chemical EngineeringWest Virginia UniversityMorgantown, WV 26506S. Stover; [email protected]; 304-293-2111Department of Chemical EngineeringWest Virginia UniversityMorgantown, WV 26506
Reference
"Capacitive Deionization of NaCl Solution using Four-Series Cells with Carbon Aerogel Composite Electrodes"Chun-Mo Yang a,*, Gi Taek Lee a, Byung-Ki Na c, Dong Jin Suhb, Byung Won Cho a, and Won Il Cho aa Eco - Nano Research Center, Korea Institute of Science andTechnology, Seoul, 136-791, Koreab Clean Technology Research Center, Korea Institute of Scienceand Technology, Seoul, 136-791, Koreac Division of Chemical Engineering, Chungbuk NationalUniversity, Chungbuk 361-763, Korea
Reference