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Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater. / Mukhopadhyay, Raj; Adhikari, Tapan; Sarkar, Binoy et al.
In: Journal of Hazardous Materials, Vol. 376, 15.08.2019, p. 141-152.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Mukhopadhyay, R, Adhikari, T, Sarkar, B, Barman, A, Paul, R, Patra, AK, Sharma, PC & Kumar, P 2019, 'Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater', Journal of Hazardous Materials, vol. 376, pp. 141-152. https://doi.org/10.1016/j.jhazmat.2019.05.025

APA

Mukhopadhyay, R., Adhikari, T., Sarkar, B., Barman, A., Paul, R., Patra, A. K., Sharma, P. C., & Kumar, P. (2019). Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater. Journal of Hazardous Materials, 376, 141-152. https://doi.org/10.1016/j.jhazmat.2019.05.025

Vancouver

Mukhopadhyay R, Adhikari T, Sarkar B, Barman A, Paul R, Patra AK et al. Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater. Journal of Hazardous Materials. 2019 Aug 15;376:141-152. doi: 10.1016/j.jhazmat.2019.05.025

Author

Mukhopadhyay, Raj ; Adhikari, Tapan ; Sarkar, Binoy et al. / Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater. In: Journal of Hazardous Materials. 2019 ; Vol. 376. pp. 141-152.

Bibtex

@article{7cd6a20902394b01a17637d520ef166c,
title = "Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater",
abstract = "Nitrate (NO3−) and bicarbonate (HCO3−) are harmful for the water quality and can potentially create negative impacts to aquatic organisms, crops and humans. This study deals with the removal of NO3− and HCO3− from contaminated wastewater using Fe-exchanged nano-bentonite and Fe3O4 nanoparticles. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, surface area measurement and particle size analysis revealed that the adsorbents fall under the nano-scale size range with high specific surface area, and Fe was successfully exchanged in the nano-bentonite clay. The kinetics of adsorption was well defined by pseudo-first order and pseudo-second order kinetic models for both NO3− and HCO3−. The Fe-exchanged nano-bentonite was a better performing adsorbent of the oxyanions than Fe3O4 nanoparticles. According to the Sips isothermal model, the Fe-exchanged nano-bentonite exhibited the highest NO3− and HCO3− adsorption potential of 64.76 mg g-1 and 9.73 meq g-1, respectively, while the respective values for Fe3O4 nanoparticles were 49.90 mg g-1 and 3.07 meq g-1. Thus, inexpensiveness and easy preparation process of Fe-exchanged nano-bentonite make it attractive for NO3− and HCO3− removal from contaminated wastewater with significant environmental and economic benefits.",
keywords = "Nano-bentonite, Nitrate pollution, Oxyanion adsorption, Wastewater treatment, Water alkalinity",
author = "Raj Mukhopadhyay and Tapan Adhikari and Binoy Sarkar and Arijit Barman and Ranjan Paul and Patra, {Ashok K.} and Sharma, {Parbodh C.} and Parveen Kumar",
year = "2019",
month = aug,
day = "15",
doi = "10.1016/j.jhazmat.2019.05.025",
language = "English",
volume = "376",
pages = "141--152",
journal = "Journal of Hazardous Materials",
issn = "0304-3894",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Fe-exchanged nano-bentonite outperforms Fe3O4 nanoparticles in removing nitrate and bicarbonate from wastewater

AU - Mukhopadhyay, Raj

AU - Adhikari, Tapan

AU - Sarkar, Binoy

AU - Barman, Arijit

AU - Paul, Ranjan

AU - Patra, Ashok K.

AU - Sharma, Parbodh C.

AU - Kumar, Parveen

PY - 2019/8/15

Y1 - 2019/8/15

N2 - Nitrate (NO3−) and bicarbonate (HCO3−) are harmful for the water quality and can potentially create negative impacts to aquatic organisms, crops and humans. This study deals with the removal of NO3− and HCO3− from contaminated wastewater using Fe-exchanged nano-bentonite and Fe3O4 nanoparticles. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, surface area measurement and particle size analysis revealed that the adsorbents fall under the nano-scale size range with high specific surface area, and Fe was successfully exchanged in the nano-bentonite clay. The kinetics of adsorption was well defined by pseudo-first order and pseudo-second order kinetic models for both NO3− and HCO3−. The Fe-exchanged nano-bentonite was a better performing adsorbent of the oxyanions than Fe3O4 nanoparticles. According to the Sips isothermal model, the Fe-exchanged nano-bentonite exhibited the highest NO3− and HCO3− adsorption potential of 64.76 mg g-1 and 9.73 meq g-1, respectively, while the respective values for Fe3O4 nanoparticles were 49.90 mg g-1 and 3.07 meq g-1. Thus, inexpensiveness and easy preparation process of Fe-exchanged nano-bentonite make it attractive for NO3− and HCO3− removal from contaminated wastewater with significant environmental and economic benefits.

AB - Nitrate (NO3−) and bicarbonate (HCO3−) are harmful for the water quality and can potentially create negative impacts to aquatic organisms, crops and humans. This study deals with the removal of NO3− and HCO3− from contaminated wastewater using Fe-exchanged nano-bentonite and Fe3O4 nanoparticles. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, surface area measurement and particle size analysis revealed that the adsorbents fall under the nano-scale size range with high specific surface area, and Fe was successfully exchanged in the nano-bentonite clay. The kinetics of adsorption was well defined by pseudo-first order and pseudo-second order kinetic models for both NO3− and HCO3−. The Fe-exchanged nano-bentonite was a better performing adsorbent of the oxyanions than Fe3O4 nanoparticles. According to the Sips isothermal model, the Fe-exchanged nano-bentonite exhibited the highest NO3− and HCO3− adsorption potential of 64.76 mg g-1 and 9.73 meq g-1, respectively, while the respective values for Fe3O4 nanoparticles were 49.90 mg g-1 and 3.07 meq g-1. Thus, inexpensiveness and easy preparation process of Fe-exchanged nano-bentonite make it attractive for NO3− and HCO3− removal from contaminated wastewater with significant environmental and economic benefits.

KW - Nano-bentonite

KW - Nitrate pollution

KW - Oxyanion adsorption

KW - Wastewater treatment

KW - Water alkalinity

U2 - 10.1016/j.jhazmat.2019.05.025

DO - 10.1016/j.jhazmat.2019.05.025

M3 - Journal article

C2 - 31128393

AN - SCOPUS:85066039871

VL - 376

SP - 141

EP - 152

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -