The performance of MCDI: the effect of sulfosuccinic acid ratio in the PVA-based cation exchange membrane

Ngo, Hoang Long; Nguyen, Ngan Tuan; Ho, Thi Thanh Nguyen; Pham, Hoang Vinh; Le, Trong Nhan; Tran, Tri; Huynh, Lam K.; Pham, Thi Nam; Nguyễn, Thanh Tùng; Nguyen, Thai Hoang; Le, Viet Hai; Tran, Dai Lam

doi:10.1007/s11581-022-04661-w

Cited by 3 publications

(3 citation statements)

References 51 publications

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“…The addition of CNT to the TiO 2 samples helped reduce their charge transfer resistance and enhance their electron conductivity, as shown via narrower semicircle and bigger slope more than the Warburg diffusion at 45°. [ 30,43,44 ] Obviously increasing the CNT content also resulted in smaller diameter of the semicircle and a large slope. Among the synthesized electrodes, sample T1 (1% CNT loading) possessed the lowest surface charge resistance and the best electron diffusion capacity.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization

Nguyen,

Nguyen

et al. 2023

CLEAN Soil Air Water

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Many studies have shown that capacitance deionization (CDI) has great potential in salt‐water treatment, one of the issues of great concern in many countries, especially Vietnam. The electrode material in CDI is one of the essential factors contributing to the desalination efficiency of this technology, so it is of research interest. In this study, TiO2 and TiO2/carbon nanotubes (CNTs) were synthesized from the sol‐gel process and utilized as an electrode for desalination. The composite materials were intensively characterized by X‐ray diffraction, Raman spectroscopy, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Brunauer–Emmett–Teller and thermal analysis. The electrochemical properties were investigated using electrochemical impedance spectroscopy, cyclic voltammetry, and galvanostatic charge/discharge. The fabricated TiO2/CNTs nanocomposite electrode consisting of 1% CNTs (electrode T1) exhibited remarkable capacitance, conductivity, and durability; thus, it was employed as an electrode for desalination. With this electrode T1, the maximum salt adsorption capacity of 17.5 mg g−1, together with the highest charge efficiency of 90%, was achieved. Therefore, TiO2/CNTs can be considered a suitable electrode candidate for CDI technology.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Properties Of the Materialsmentioning

confidence: 98%

Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization

Nguyen,

Nguyen

et al. 2023

CLEAN Soil Air Water

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“…A popular way of performing sulfonation and crosslinking of PVA backbones together is with the use of sulfosuccinic acid. Ngo et al [ 68 ] used sulfosuccinic acid together with glutaric anhydride to crosslink PVA backbones. They used water as a solvent and synthesized green cation exchange membranes with high ion exchange capacities.…”

Section: Green Sulfonationmentioning

confidence: 99%

Green Synthesis of Cation Exchange Membranes: A Review

Depuydt,

Van der Bruggen

2024

Membranes

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Cation exchange membranes (CEMs) play a significant role in the transition to a more sustainable/green society. They are important components for applications such as water electrolysis, artificial photosynthesis, electrodialysis and fuel cells. Their synthesis, however, is far from being sustainable, affecting safety, health and the environment. This review discusses and evaluates the possibilities of synthesizing CEMs that are more sustainable and green. First, the concepts of green and sustainable chemistry are discussed. Subsequently, this review discusses the fabrication of conventional perfluorinated CEMs and how they violate the green/sustainability principles, eventually leading to environmental and health incidents. Furthermore, the synthesis of green CEMs is presented by dividing the synthesis into three parts: sulfonation, material selection and solvent selection. Innovations in using gaseous SO3 or gas–liquid interfacial plasma technology can make the sulfonation process more sustainable. Regarding the selection of polymers, chitosan, cellulose, polylactic acid, alginate, carrageenan and cellulose are promising alternatives to fossil fuel-based polymers. Finally, water is the most sustainable solvent and many biopolymers are soluble in it. For other polymers, there are a limited number of studies using green solvents. Promising solvents are found back in other membrane, such as dimethyl sulfoxide, Cyrene™, Rhodiasolv® PolarClean, TamiSolve NxG and γ-valerolactone.

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A preliminary attempt at capacitive deionization with PVA/PSS gel coating as an alternative to ion exchange membrane

Ming,

Zhang,

Yue

et al. 2024

Environmental Technology

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The performance of MCDI: the effect of sulfosuccinic acid ratio in the PVA-based cation exchange membrane

Cited by 3 publications

References 51 publications

Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization

Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization

Green Synthesis of Cation Exchange Membranes: A Review

A preliminary attempt at capacitive deionization with PVA/PSS gel coating as an alternative to ion exchange membrane

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The performance of MCDI: the effect of sulfosuccinic acid ratio in the PVA-based cation exchange membrane

Cited by 3 publications

References 51 publications

Fabrication of TiO2/CNTs composite electrode with improved performance in capacitive deionization

Fabrication of TiO2/CNTs composite electrode with improved performance in capacitive deionization

Green Synthesis of Cation Exchange Membranes: A Review

A preliminary attempt at capacitive deionization with PVA/PSS gel coating as an alternative to ion exchange membrane

Contact Info

Product

Resources

About

Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization

Fabrication of TiO₂/CNTs composite electrode with improved performance in capacitive deionization