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Kyaw HH, Myint MTZ, Al-Belushi MA, Dobretsov S, Al-Abri M. Nanomaterial grafted polymorphous activated carbon cloth surface for antibacterial, capacitive deionization and oil spill cleaning applications. CHEMOSPHERE 2024; 350:141053. [PMID: 38154669 DOI: 10.1016/j.chemosphere.2023.141053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/14/2023] [Accepted: 12/26/2023] [Indexed: 12/30/2023]
Abstract
This work reports the development of multifunctional or polymorphous surfaces using zinc oxide (ZnO) nanorods, silica (SiO2), and fluoropolymer functionalization in a sequential process. Firstly, zinc oxide nanorods were grown on activated carbon cloth (ACC) using a simple low-temperature synthesis process. ZnO nanorods-coated ACC substrate was applied to investigate the antimicrobial properties, and the results showed inhibition of 50% for Escherichia coli (E.coli) and 55% for Bacillus subtilis (B.subtilis) over 48 h of incubation time. Subsequent in-situ modification of silica nanoparticles like layer on ZnO nanorods-coated ACC surface was developed and used as an electrode for brackish water desalination in a capacitive deionization system. ZnO-SiO2 modified ACC surface enhanced the desalination efficiency by 1.6 times, the salt removal rate (SRR) by threefold, and the durability (fouling prevention) for long-term usage compared to pristine ACC. Further modification of the ZnO-SiO2-ACC surface using fluoropolymer rendered the surface superhydrophobic and oleophilic. Vegetable (1.4 g/g) and crude oil (1.6 g/g) adsorption capacities were achieved for modified surface which was 70% enhancement compared with pristine ACC. The dynamic oil spill adsorption test exhibited the complete removal of oil spills on water surfaces within a few seconds, suggesting a potential application in oil spill cleaning.
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Affiliation(s)
- Htet Htet Kyaw
- Nanotechnology Research Center, Sultan Qaboos University, PO Box 33, Al-Khoudh, 123, Muscat, Oman
| | - Myo Tay Zar Myint
- Department of Physics, College of Science, Sultan Qaboos University, PO Box 36, Al-Khoudh, 123, Muscat, Oman.
| | - Mohammed A Al-Belushi
- Department of Marine Science and Fisheries, College of Agriculture and Marine Sciences, Sultan Qaboos University, PO Box 34, Al-Khoudh, 123, Muscat, Oman; Central Laboratory for Food Safety, Food Safety and Quality Center, Ministry of Agriculture, Fisheries Wealth & Water Resources, PO Box 3094, Airport Central Post,111, Muscat, Oman
| | - Sergey Dobretsov
- Department of Marine Science and Fisheries, College of Agriculture and Marine Sciences, Sultan Qaboos University, PO Box 34, Al-Khoudh, 123, Muscat, Oman
| | - Mohammed Al-Abri
- Nanotechnology Research Center, Sultan Qaboos University, PO Box 33, Al-Khoudh, 123, Muscat, Oman; Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, PO Box 33, Al-Khoudh, 123, Muscat, Oman.
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Nordstrand J, Dutta J. Langmuir-Based Modeling Produces Steady Two-Dimensional Simulations of Capacitive Deionization via Relaxed Adsorption-Flow Coupling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3350-3359. [PMID: 35257585 PMCID: PMC8945368 DOI: 10.1021/acs.langmuir.1c02806] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 02/24/2022] [Indexed: 06/14/2023]
Abstract
The growing world population creates an ever-increasing demand for fresh drinkable water, and many researchers have discovered the emerging capacitive deionization (CDI) technique to be highly promising for desalination. Traditional modeling of CDI has focused on charge storage in electrical double layers, but recent studies have presented a dynamic Langmuir (DL) approach as a simple and stable alternative. We here demonstrate, for the first time, that a Langmuir-based approach can simulate CDI in multiple dimensions. This provides a new perspective of different physical pictures that could be used to describe the detailed CDI processes. As CDI emerges, effective modeling of large-scale and pilot CDI modules is becoming increasingly important, but such a modeling could also be especially complex. Leveraging the stability of the DL model, we propose an alternative fundamental approach based on relaxed adsorption-flow computations that can dissolve these complexity barriers. Literature data extensively validate the findings, which show how the Langmuir-based approach can simulate and predict how key changes in operational and structural conditions affect the CDI performance. Crucially, the method is tractable for simple simulations of large-scale and structurally complex systems. Put together, this work presents new avenues for approaching the challenges in modeling CDI.
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Affiliation(s)
- Johan Nordstrand
- Functional
Materials Group, Applied Physics Department, School of Engineering
Sciences, KTH Royal Institute of Technology, AlbaNova Universitetscentrum, 106 91 Stockholm, Sweden
| | - Joydeep Dutta
- Functional
Materials Group, Applied Physics Department, School of Engineering
Sciences, KTH Royal Institute of Technology, AlbaNova Universitetscentrum, 106 91 Stockholm, Sweden
- Center
of Nanotechnology, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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Kyaw HH, Myint MTZ, Al-Harthi S, Al-Muhtaseb AH, Al-Abri M. Electric field enhanced in situ silica nanoparticles grafted activated carbon cloth electrodes for capacitive deionization. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119888] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Nordstrand J, Kloo L. Electrostatic interactions and physisorption: mechanisms of passive cesium adsorption on Prussian blue. Phys Chem Chem Phys 2022; 24:25452-25461. [DOI: 10.1039/d2cp04317c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The study finds atomic-level physisorption interactions that leads to electrostatic Langmuir adsorption.
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Affiliation(s)
- Johan Nordstrand
- Functional Materials, Applied Physics Department, School of Engineering Sciences, KTH Royal Institute of Technology, AlbaNova universitetscentrum, SE-106 91 Stockholm, Sweden
| | - Lars Kloo
- Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
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Nordstrand J, Dutta J. A new automated model brings stability to finite‐element simulations of capacitive deionization. NANO SELECT 2021. [DOI: 10.1002/nano.202100270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Johan Nordstrand
- Functional Materials, Applied Physics Department, School of Engineering Sciences KTH Royal Institute of Technology AlbaNova universitetscentrum Stockholm 106 91 Sweden
| | - Joydeep Dutta
- Functional Materials, Applied Physics Department, School of Engineering Sciences KTH Royal Institute of Technology AlbaNova universitetscentrum Stockholm 106 91 Sweden
- Center of Nanotechnology King Abdulaziz University Jeddah 21589 Saudi Arabia
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Laxman K, Sathe P, Al Abri M, Dobretsov S, Dutta J. Disinfection of Bacteria in Water by Capacitive Deionization. Front Chem 2020; 8:774. [PMID: 33110910 PMCID: PMC7489198 DOI: 10.3389/fchem.2020.00774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/24/2020] [Indexed: 11/27/2022] Open
Abstract
Clean water is one of the primary UN sustainable development goals for 2,030 and sustainable water deionization and disinfection is the backbone of that goal. Capacitive deionization (CDI) is an upcoming technique for water deionization and has shown substantial promise for large scale commercialization. In this study, activated carbon cloth (ACC) electrode based CDI devices are used to study the removal of ionic contaminants in water and the effect of ion concentrations on the electrosorption and disinfection functions of the CDI device for mixed microbial communities in groundwater and a model bacterial strain Escherichia coli. Up to 75 % of microbial cells could be removed in a single pass through the CDI unit for both synthetic and groundwater, while maintaining the salt removal activity. Mortality of the microbial cells were also observed during the CDI cell regeneration and correlated with the chloride ion concentrations. The power consumption and salt removal capacity in the presence and absence of salt were mapped and shown to be as low as 0.1 kWh m−3 and 9.5 mg g−1, respectively. The results indicate that CDI could be a viable option for single step deionization and microbial disinfection of brackish water.
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Affiliation(s)
- Karthik Laxman
- Functional Materials Group, Department of Applied Physics, School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Priyanka Sathe
- Nanotechnology Research Centre, Sultan Qaboos University, Muscat, Oman.,Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammed Al Abri
- Nanotechnology Research Centre, Sultan Qaboos University, Muscat, Oman.,Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
| | - Sergey Dobretsov
- Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman.,Center of Excellence in Marine Biotechnology, Sultan Qaboos University, Muscat, Oman
| | - Joydeep Dutta
- Functional Materials Group, Department of Applied Physics, School of Engineering Sciences (SCI), KTH Royal Institute of Technology, Stockholm, Sweden
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Kyaw HH, Myint MTZ, Al-Harthi S, Al-Abri M. Removal of heavy metal ions by capacitive deionization: Effect of surface modification on ions adsorption. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121565. [PMID: 31732340 DOI: 10.1016/j.jhazmat.2019.121565] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 10/09/2019] [Accepted: 10/28/2019] [Indexed: 05/17/2023]
Abstract
Activated carbon cloth (ACC) coated with zinc oxide (ZnO) nanoparticles (NPs) have been used as electrodes in flow-by capacitive deionization (CDI) system. Aqueous solution of individual Pb2+ and Cd2+ ions and mixed Pb2+ and Cd2+ ions were used as test contaminant in CDI system to study the effect of surface modification upon ions removal efficiency. Due to the aggregated structure of ZnO NPs on ACC surface, the modified ACC electrodes develop the additional surface area as well as dielectric barrier therefore resulting in higher specific capacitance. In addition, coating with ZnO NPs effectively reduced physical adsorption whereby enhanced the ions adsorption rate and capacity during electrosorption process. Upon incorporating with ZnO NPs, the electrosorption efficiency was enhanced from 17% to 33% for Pb2+, from 21% to 29% for Cd2+ and from 21% to 35% for mixed Pb2+ and Cd2+ ions. The power consumption of individual ions and mixed ions removal process for ACC and ZnO NPs modified ACC were also discussed. Furthermore, used ACC electrodes surfaces were examined using photoelectron spectroscopy (XPS) and results were also conferred. The CDI ACC electrodes with ZnO NPs showed a promising and an effective way for heavy metal removal applications.
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Affiliation(s)
- Htet Htet Kyaw
- Nanotechnology Research Center, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, Muscat 123, Oman
| | - Myo Tay Zar Myint
- Department of Physics, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, Muscat 123, Oman
| | - Salim Al-Harthi
- Department of Physics, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khoudh, Muscat 123, Oman
| | - Mohammed Al-Abri
- Nanotechnology Research Center, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, Muscat 123, Oman; Petroleum and Chemical Engineering Department, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, Muscat 123, Oman.
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Ren L, Xu B, Wang G, Yin X, Liu Y, Yang W, Chen Y. Fabrication of an antimony doped tin oxide–graphene nanocomposite for highly effective capacitive deionization of saline water. RSC Adv 2020; 10:39130-39136. [PMID: 35518392 PMCID: PMC9057354 DOI: 10.1039/d0ra08339a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/19/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, antimony doped tin oxide loaded reduced graphene oxide (ATO–RGO) nanocomposites were synthesized via a facile hydrothermal approach. As a typical N-type semiconductor, the ATO in the composite can enhance the conductivity between graphene sheets, thus improving the specific capacitance and electrosorption performance. Under the optimal conditions, the largest surface area was 445.2 m2 g−1 when the mass content of ATO in the nanocomposite was 20 wt%. The synthesized optimal ATO–RGO electrode displayed excellent specific capacity (158.2 F g−1) and outstanding electrosorptive capacity (8.63 mg g−1) in sodium chloride solution, which were much higher than the corresponding results of pristine graphene (74.3 F g−1 and 3.98 mg g−1). At the same applied voltage, electrosorption capacity and charge efficiency of the ATO–RGO (20 wt%) material were better than those of reported carbon materials in recent years. Antimony doped tin oxide–graphene nanocomposites synthesized via a facile hydrothermal approach displayed good specific capacity and electrosorptive capacity.![]()
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Affiliation(s)
- Long Ren
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Bin Xu
- Nanjing Institute of Environmental Sciences
- Ministry of Ecology and Environmental of the People's Republic of China
- Nanjing 210042
- China
| | - Guodong Wang
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xiaoshuang Yin
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Ying Liu
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Wenzhong Yang
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yun Chen
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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Nordstrand J, Laxman K, Myint MTZ, Dutta J. An Easy-to-Use Tool for Modeling the Dynamics of Capacitive Deionization. J Phys Chem A 2019; 123:6628-6634. [DOI: 10.1021/acs.jpca.9b05503] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johan Nordstrand
- Functional Materials, Applied Physics Department, SCI School, KTH Royal Institute of Technology, Isafjordsgatan 22, Kista, SE-16440 Stockholm, Sweden
| | - Karthik Laxman
- Functional Materials, Applied Physics Department, SCI School, KTH Royal Institute of Technology, Isafjordsgatan 22, Kista, SE-16440 Stockholm, Sweden
| | - Myo Tay Zar Myint
- Department of Physics, Sultan Qaboos University, P.O. Box 17, Al Khoud, 123 Muscat, Oman
| | - Joydeep Dutta
- Functional Materials, Applied Physics Department, SCI School, KTH Royal Institute of Technology, Isafjordsgatan 22, Kista, SE-16440 Stockholm, Sweden
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10
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Ma D, Wang Y, Han X, Xu S, Wang J. Applicable tolerance evaluations of ion-doped carbon nanotube/polypyrrole electrode under adverse solution conditions for capacitive deionization process. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.02.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Laxman K, Kimoto D, Sahakyan A, Dutta J. Nanoparticulate Dielectric Overlayer for Enhanced Electric Fields in a Capacitive Deionization Device. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5941-5948. [PMID: 29369615 DOI: 10.1021/acsami.7b16540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The magnitude and distribution of the electric field between two conducting electrodes of a capacitive deionization (CDI) device plays an important role in governing the desalting capacity. A dielectric coating on these electrodes can polarize under an applied potential to modulate the net electric field and hence the salt adsorption capacity of the device. Using finite element models, we show the extent and nature of electric field modulation, associated with changes in the size, thickness, and permittivity of commonly used nanostructured dielectric coatings such as zinc oxide (ZnO) and titanium dioxide (TiO2). Experimental data pertaining to the simulation are obtained by coating activated carbon cloth (ACC) with nanoparticles of ZnO and TiO2 and using them as electrodes in a CDI device. The dielectric-coated electrodes displayed faster desalting kinetics of 1.7 and 1.55 mg g-1 min-1 and higher unsaturated specific salt adsorption capacities of 5.72 and 5.3 mg g-1 for ZnO and TiO2, respectively. In contrast, uncoated ACC had a salt adsorption rate and capacity of 1.05 mg g-1 min-1 and 3.95 mg g-1, respectively. The desalting data is analyzed with respect to the electrical parameters of the electrodes extracted from cyclic voltammetry and impedance measurements. Additionally, the obtained results are correlated with the simulation data to ascertain the governing principles for the changes observed and advances that can be achieved through dielectric-based electrode modifications for enhancing the CDI device performance.
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Affiliation(s)
- Karthik Laxman
- Functional Materials Division, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology , Isafjordsgatan 22, Kista, SE-164 40 Stockholm, Sweden
| | - Daiki Kimoto
- Functional Materials Division, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology , Isafjordsgatan 22, Kista, SE-164 40 Stockholm, Sweden
| | - Armen Sahakyan
- Thomas Johann Seebeck Department of Electronics, Tallinn University of Technology , Ehitajate tee 5, 19086 Tallinn, Estonia
| | - Joydeep Dutta
- Functional Materials Division, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology , Isafjordsgatan 22, Kista, SE-164 40 Stockholm, Sweden
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Li H, Leong ZY, Shi W, Zhang J, Chen T, Yang HY. Hydrothermally synthesized graphene and Fe3O4 nanocomposites for high performance capacitive deionization. RSC Adv 2016. [DOI: 10.1039/c5ra23151e] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Capacitive deionization (CDI) devices with low energy consumption and high salt removal efficiencies have attracted much attention.
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Affiliation(s)
- Haibo Li
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
| | - Zhi Yi Leong
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
| | - Wenhui Shi
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
| | - Jun Zhang
- School of Electrical and Electronics Engineering
- Nanyang Technological University
- Singapore 639798
| | - Tupei Chen
- School of Electrical and Electronics Engineering
- Nanyang Technological University
- Singapore 639798
| | - Hui Ying Yang
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
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Capacitive deionization with asymmetric electrodes: Electrode capacitance vs electrode surface area. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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