MXene/Activated-Carbon Hybrid Capacitive Deionization for Permselective Ion Removal at Low and High Salinity

2020 ◽  
Vol 12 (23) ◽  
pp. 26013-26025 ◽  
Author(s):  
Mohammad Torkamanzadeh ◽  
Lei Wang ◽  
Yuan Zhang ◽  
Öznil Budak ◽  
Pattarachai Srimuk ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Salinity ◽  
Capacitive Deionization ◽  
Ion Removal

Removal of nitrate using activated carbon-based electrodes for capacitive deionization

2018 ◽  
Vol 18 (6) ◽  
pp. 2028-2034 ◽  
Author(s):  
Shaojie Jiang ◽  
Hongwu Wang ◽  
Guanquan Xiong ◽  
Xinlei Wang ◽  
Siying Tan
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Flow Rate ◽  
Nitrate Removal ◽  
Cell Voltage ◽  
Solution Concentration ◽  
Capacitive Deionization ◽  
Optimal Conditions ◽  
Ion Removal ◽  
Initial Solution Concentration

Abstract The removal performance of nitrate using capacitive deionization (CDI) of activated carbon (AC)-based electrodes were studied. The AC electrode was prepared and the effect of cell voltage, flow rate and initial solution concentration on ion removal were investigated. Furthermore, the AC was modified with phosphoric acid (ACP) and the surface structure of AC and ACP were analyzed. The results showed that the specific surface area of AC increased by 10.71% after the modification. The mesopore ratio and micropore ratio increased by 14.69% and 24.06%, respectively. The optimal conditions of AC electrode was a voltage of 1.4 V and flow rate of 20 mL/min while the ACP electrode was a voltage of 1.4 V and flow rate of 10 mL/min. The electrosorption capacity of ACP electrode was improved and the unit of electrosorption load was high to 19.28 mg/L. For the AC or ACP electrode, the nitrate removal efficiency decreases with the increase in the initial feed solutions, but the unit electrosorption load gradually increased with the improvement of initial feed solutions' concentration and the ACP electrode was superior to the AC electrode. Therefore, the ACP electrode would be suitable for the application of CDI on the nitrate removal.

scholarly journals Capacitive desalination of WO3/carbon cloth supercapacitor and morphology analysis

2018 ◽  
Vol 13 (2) ◽  
pp. 410-413 ◽  
Author(s):  
Y. Gui ◽  
D. J. Blackwood
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Heavy Ions ◽  
Potential Range ◽  
Carbon Cloth ◽  
Capacitive Deionization ◽  
Activated Carbon Cloth ◽  
Ion Removal ◽  
Flaky Morphology ◽  
Anodization Method

Abstract Cathode materials are important in determining the performance of a capacitive deionization cell. In this work activated carbon cloth (ACC) grafted with tungsten oxide was employed as cathode, which was first grown on ACC with a flaky morphology by a self-anodization method. The oxide was uniformly distributed over the surface of the ACC. The desalination capacity of the obtained material is deduced from electrochemical characterization, based on the preliminary stage, in the static 1 M NaCl aqueous solution over a potential range from −1 V to 0.2 V. The modified ACC attained an enhanced ion removal ability, which gives promising potential in the further application on removing heavy ions from the wastewater of industries.

scholarly journals Simplified Prediction of Ion Removal in Capacitive Deionization of Multi-Ion Solutions

Langmuir ◽  
2020 ◽  
Vol 36 (5) ◽  
pp. 1338-1344 ◽  
Author(s):  
Johan Nordstrand ◽  
Joydeep Dutta
Keyword(s):  
Capacitive Deionization ◽  
Ion Removal

High Performance Hybrid Capacitive Deionization with Ag-coated Activated Carbon Electrode

2021 ◽  
Author(s):  
Hongsik Yoon ◽  
Jiho Lee ◽  
Taijin Min ◽  
Gunhee Lee ◽  
Minsub Oh
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Industrial Application ◽  
High Performance ◽  
Treatment System ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Water Treatment System

Capacitive deionization (CDI) has been highlighted as a promising electrochemical water treatment system. However, the low deionization capacity of CDI electrodes has been a major limitation for its industrial application,...

scholarly journals Preparation and characterization of andisol-zeolite-fly ash-activated carbon (AZFC) as potential adsorbent for metal ion removal

2020 ◽  
Author(s):  
Antonius Agus Bambang Haryanto ◽  
Ari Handono Ramelan ◽  
MTh Sri Budiastuti ◽  
Pranoto
Keyword(s):  
Activated Carbon ◽  
Fly Ash ◽  
Metal Ion ◽  
Metal Ion Removal ◽  
Ion Removal

Enhanced capacitive deionization performance of activated carbon derived from coconut shell electrodes with low content carbon nanotubes–graphene synergistic hybrid additive

2021 ◽  
Vol 292 ◽  
pp. 129652
Author(s):  
Thi Thom Nguyen ◽  
Le Thanh Nguyen Huynh ◽  
Thi Nam Pham ◽  
Thanh Nhut Tran ◽  
Thi Thanh Nguyen Ho ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Coconut Shell ◽  
Capacitive Deionization
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