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Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media. / Premarathna, K. S.D.; Rajapaksha, Anushka Upamali; Adassoriya, Nadeesh et al.
In: Journal of Environmental Management, Vol. 238, 15.05.2019, p. 315-322.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Premarathna, KSD, Rajapaksha, AU, Adassoriya, N, Sarkar, B, Sirimuthu, NMS, Cooray, A, Ok, YS & Vithanage, M 2019, 'Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media', Journal of Environmental Management, vol. 238, pp. 315-322. https://doi.org/10.1016/j.jenvman.2019.02.069

APA

Premarathna, K. S. D., Rajapaksha, A. U., Adassoriya, N., Sarkar, B., Sirimuthu, N. M. S., Cooray, A., Ok, Y. S., & Vithanage, M. (2019). Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media. Journal of Environmental Management, 238, 315-322. https://doi.org/10.1016/j.jenvman.2019.02.069

Vancouver

Premarathna KSD, Rajapaksha AU, Adassoriya N, Sarkar B, Sirimuthu NMS, Cooray A et al. Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media. Journal of Environmental Management. 2019 May 15;238:315-322. doi: 10.1016/j.jenvman.2019.02.069

Author

Premarathna, K. S.D. ; Rajapaksha, Anushka Upamali ; Adassoriya, Nadeesh et al. / Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media. In: Journal of Environmental Management. 2019 ; Vol. 238. pp. 315-322.

Bibtex

@article{49b2a38221794e5782d0a47bcdc0f85a,
title = "Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media",
abstract = "The focus of this research was to synthesize novel clay-biochar composites by incorporating montmorillonite (MMT) and red earth (RE) clay materials in a municipal solid waste (MSW) biochar for the adsorptive removal of tetracycline (TC) from aqueous media. X-ray Fluorescence Analysis (XRF), Fourier Transform Infrared Spectroscopy (FTIR), Powder X-ray Diffraction (PXRD) and Scanning Electron Microscopy (SEM) were used for the characterization of the synthesized raw biochar (MSW-BC) and clay-biochar composites (MSW-MMT and MSW-RE). Results showed that minute clay particles were dispersed on biochar surfaces. The FTIR bands due to Si-O functional group vibrations in the spectra of the clay-biochar composites provided further evidence for successful composite formation. The kinetic TC adsorption data of MSW-MMT were well fitted to the Elovich model expressing high surface activity of biochar and involvement of multiple mechanisms in the adsorption. The kinetic TC adsorption data of MSW-BC and MSW-RE were fitted to the pseudo second order model indicating dominant contribution of chemisorption mechanism during the adsorption. The adsorption differentiation obtained in the kinetic studies was mainly due to the structure of the combined clay material. The adsorption isotherm data of all the adsorbents were well fitted to the Freundlich model suggesting that the adsorption of TC onto the materials occurred via both physisorption and chemisorption mechanisms. In comparison to the raw biochar and MSW-RE, MSW-MMT exhibited higher TC adsorption capacity. Therefore, MSW-MMT clay-biochar composite could be applied in the remediation of TC antibiotic residues in contaminated aqueous media.",
keywords = "Antibiotics, Composite, Intercalation, Montmorillonite, Natural red earth, Water treatment",
author = "Premarathna, {K. S.D.} and Rajapaksha, {Anushka Upamali} and Nadeesh Adassoriya and Binoy Sarkar and Sirimuthu, {Narayana M.S.} and Asitha Cooray and Ok, {Yong Sik} and Meththika Vithanage",
year = "2019",
month = may,
day = "15",
doi = "10.1016/j.jenvman.2019.02.069",
language = "English",
volume = "238",
pages = "315--322",
journal = "Journal of Environmental Management",
issn = "0301-4797",
publisher = "Academic Press",

}

RIS

TY - JOUR

T1 - Clay-biochar composites for sorptive removal of tetracycline antibiotic in aqueous media

AU - Premarathna, K. S.D.

AU - Rajapaksha, Anushka Upamali

AU - Adassoriya, Nadeesh

AU - Sarkar, Binoy

AU - Sirimuthu, Narayana M.S.

AU - Cooray, Asitha

AU - Ok, Yong Sik

AU - Vithanage, Meththika

PY - 2019/5/15

Y1 - 2019/5/15

N2 - The focus of this research was to synthesize novel clay-biochar composites by incorporating montmorillonite (MMT) and red earth (RE) clay materials in a municipal solid waste (MSW) biochar for the adsorptive removal of tetracycline (TC) from aqueous media. X-ray Fluorescence Analysis (XRF), Fourier Transform Infrared Spectroscopy (FTIR), Powder X-ray Diffraction (PXRD) and Scanning Electron Microscopy (SEM) were used for the characterization of the synthesized raw biochar (MSW-BC) and clay-biochar composites (MSW-MMT and MSW-RE). Results showed that minute clay particles were dispersed on biochar surfaces. The FTIR bands due to Si-O functional group vibrations in the spectra of the clay-biochar composites provided further evidence for successful composite formation. The kinetic TC adsorption data of MSW-MMT were well fitted to the Elovich model expressing high surface activity of biochar and involvement of multiple mechanisms in the adsorption. The kinetic TC adsorption data of MSW-BC and MSW-RE were fitted to the pseudo second order model indicating dominant contribution of chemisorption mechanism during the adsorption. The adsorption differentiation obtained in the kinetic studies was mainly due to the structure of the combined clay material. The adsorption isotherm data of all the adsorbents were well fitted to the Freundlich model suggesting that the adsorption of TC onto the materials occurred via both physisorption and chemisorption mechanisms. In comparison to the raw biochar and MSW-RE, MSW-MMT exhibited higher TC adsorption capacity. Therefore, MSW-MMT clay-biochar composite could be applied in the remediation of TC antibiotic residues in contaminated aqueous media.

AB - The focus of this research was to synthesize novel clay-biochar composites by incorporating montmorillonite (MMT) and red earth (RE) clay materials in a municipal solid waste (MSW) biochar for the adsorptive removal of tetracycline (TC) from aqueous media. X-ray Fluorescence Analysis (XRF), Fourier Transform Infrared Spectroscopy (FTIR), Powder X-ray Diffraction (PXRD) and Scanning Electron Microscopy (SEM) were used for the characterization of the synthesized raw biochar (MSW-BC) and clay-biochar composites (MSW-MMT and MSW-RE). Results showed that minute clay particles were dispersed on biochar surfaces. The FTIR bands due to Si-O functional group vibrations in the spectra of the clay-biochar composites provided further evidence for successful composite formation. The kinetic TC adsorption data of MSW-MMT were well fitted to the Elovich model expressing high surface activity of biochar and involvement of multiple mechanisms in the adsorption. The kinetic TC adsorption data of MSW-BC and MSW-RE were fitted to the pseudo second order model indicating dominant contribution of chemisorption mechanism during the adsorption. The adsorption differentiation obtained in the kinetic studies was mainly due to the structure of the combined clay material. The adsorption isotherm data of all the adsorbents were well fitted to the Freundlich model suggesting that the adsorption of TC onto the materials occurred via both physisorption and chemisorption mechanisms. In comparison to the raw biochar and MSW-RE, MSW-MMT exhibited higher TC adsorption capacity. Therefore, MSW-MMT clay-biochar composite could be applied in the remediation of TC antibiotic residues in contaminated aqueous media.

KW - Antibiotics

KW - Composite

KW - Intercalation

KW - Montmorillonite

KW - Natural red earth

KW - Water treatment

U2 - 10.1016/j.jenvman.2019.02.069

DO - 10.1016/j.jenvman.2019.02.069

M3 - Journal article

C2 - 30852408

AN - SCOPUS:85063113300

VL - 238

SP - 315

EP - 322

JO - Journal of Environmental Management

JF - Journal of Environmental Management

SN - 0301-4797

ER -