Capacitive Deionization for Desalination Using Nanostructured Electrodes

Gaikwad, Mahendra S.; Balomajumder, Chandrajit

doi:10.1080/00032719.2015.1118485

Cited by 32 publications

(11 citation statements)

References 78 publications

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“…However, the cost of this electrode may be a challenge due to the materials used. Nanomaterials including nanofibers could be promising materials for use as CDI electrodes due to their many interesting properties and functionalities that can lead to improved desalination performance (Gaikwad and Balomajumder 2016).…”

Section: Nanofibers For Desalination and Water Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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Materials of nanofibrous morphology and structure are attractive for solving environmental problems including water-related issues. In recent years, increasing interest is geared on the use of specially designed electrospun nanofibers for water/wastewater treatment applications. The nanofibers can be used in the form of nonwoven structures, as stand-alone membranes, as support layer or as a surface modification layer that enables added functionality to a composite material. Continuous research has been carried out in optimizing the nanofiber membrane design and structure by manipulating material, process and surrounding parameters in the electrospinning process. This chapter highlights the recent advances and developments on the potential and application of electrospun nanofibers for water/ wastewater treatment. Comprehensive discussion is presented here on various designs and structures of nanofibers and their applications to water-related treatment and the future prospects of such materials.

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Section: Nanofibers For Desalination and Water Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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“…The analysis was carried out using standard diphenyl carbazide method using UV visible spectrophotometer. [ 26 ]…”

Section: Materials and Methodologymentioning

confidence: 99%

Multiwalled CNTs for Cr(VI) removal from industrial wastewater: An advanced study on adsorption, kinetics, thermodynamics for the comparison between the embedded and non‐embedded carboxyl group

Verma

Goel²,

Balomajumder

2020

Can J Chem Eng

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The adsorption capabilities of multiwalled carbon nanotubes (MWCNTs) with and without the embedded carboxyl group for the removal of parts per million levels of hexavalent chromium were examined as a function of several parameters, namely contact time, pH of initial solution, initial concentration of Cr(VI), adsorbent dosage as well as temperature of solution. Adsorption isotherms have been utilized to explain the adsorption mechanism. Ion exchange, intra-particle diffusion, and electrostatic interactions are found to be the fundamental mechanisms describing the adsorption of Cr(VI). The maximum adsorption capacities of Cr(VI) ion by raw MWCNTs and functionalized MWCNTs were found to be 84.75 and 78.13 mg Á g −1 , respectively, as calculated by the Langmuir adsorption isotherm model. This is with regard to the electron-rich atoms inside the functional group which repels the negatively charged dichromate ions. Kinetic studies were performed, and the data was found in good agreement with the pseudo-second-order.

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“…The wavelength was kept at 540 nm. [ 20 ] The zeta potential of the adsorbents was measured in a zeta potential and nano size particle analyzer in the chemical engineering department at IIT Roorkee. The surface micromorphology of the adsorbents before and after adsorption were investigated using a high‐resolution field emission scanning electron microscope (Carl Zeiss) Ultra plus model.…”

Section: Methodsmentioning

confidence: 99%

Red mud (aluminum industrial waste): An eco‐friendly treatment of electroplating effluent

Verma

Balomajumder

2020

Can J Chem Eng

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In this work, aluminum industrial waste, red mud (RM), was activated to verify its potential in the management of electroplating wastewater containing hexavalent chromium (Cr(VI)). A comparison between the adsorption capabilities of RM and activated red mud (ARM) towards Cr(VI) from aqueous solutions was made. The effects of several parameters were evaluated. The adsorbents were characterized by field emission scanning electron microscopy (FESEM), Fourier transmission infrared spectroscopy (FTIR), x-ray diffraction (XRD), zeta potential, and thermogravimetric analysis (TGA). The particle size was observed as 23.59 nm. The ARM demonstrated an acceptable adsorption capacity of 25.641 mg/g at a pH of 2, adsorbent dosage of 2 g/L, initial Cr(VI) concentration of 100 mg/L, at 25 C. The experimental data is in good agreement with Langmuir adsorption isotherm. The kinetic study was performed to verify that the adsorption follows pseudo-second-order kinetics. In addition, the ARM showed decent recyclability for adsorbing Cr(VI) as even after three adsorption cycles, and the adsorption capacity was reduced by 30%. The results recommend ARM to be an efficient and cost-effective adsorbent for Cr(VI) removal from industrial wastewater.

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Capacitive Deionization for Desalination Using Nanostructured Electrodes

Cited by 32 publications

References 78 publications

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Multiwalled CNTs for Cr(VI) removal from industrial wastewater: An advanced study on adsorption, kinetics, thermodynamics for the comparison between the embedded and non‐embedded carboxyl group

Red mud (aluminum industrial waste): An eco‐friendly treatment of electroplating effluent

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