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

K. S.D. Premarathna; Anushka Upamali Rajapaksha; Nadeesh Adassoriya; Binoy Sarkar; Narayana M.S. Sirimuthu; Asitha Cooray; Yong Sik Ok; Meththika Vithanage

doi:10.1016/j.jenvman.2019.02.069

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

K. S.D. Premarathna, Anushka Upamali Rajapaksha, Nadeesh Adassoriya, Binoy Sarkar, Narayana M.S. Sirimuthu, Asitha Cooray, Yong Sik Ok, Meththika Vithanage

Research output: Contribution to journal › Article › peer-review

207 Citations (Scopus)

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.

Original language	English
Pages (from-to)	315-322
Number of pages	8
Journal	Journal of Environmental Management
Volume	238
DOIs	https://doi.org/10.1016/j.jenvman.2019.02.069
Publication status	Published - 15 May 2019
Externally published	Yes

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10.1016/j.jenvman.2019.02.069

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@article{07ab3cddb03d467896454f9939d375fe,

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",

note = "Funding Information: Financial support as the grant ASP/01/RE/SCI/2017/83 from the Research Council , University of Sri Jayewardenepura, Sri Lanka, and the analytical support from the Instrument Center , Faculty of Applied Sciences , University of Sri Jayewardenepura, Sri Lanka, are acknowledged. Funding Information: Financial support as the grant ASP/01/RE/SCI/2017/83 from the Research Council, University of Sri Jayewardenepura, Sri Lanka, and the analytical support from the Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Lanka, are acknowledged. Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

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",

}

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

N1 - Funding Information: Financial support as the grant ASP/01/RE/SCI/2017/83 from the Research Council , University of Sri Jayewardenepura, Sri Lanka, and the analytical support from the Instrument Center , Faculty of Applied Sciences , University of Sri Jayewardenepura, Sri Lanka, are acknowledged. Funding Information: Financial support as the grant ASP/01/RE/SCI/2017/83 from the Research Council, University of Sri Jayewardenepura, Sri Lanka, and the analytical support from the Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Lanka, are acknowledged. Publisher Copyright: © 2019 Elsevier Ltd

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

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DO - 10.1016/j.jenvman.2019.02.069

M3 - Article

C2 - 30852408

AN - SCOPUS:85063113300

SN - 0301-4797

VL - 238

SP - 315

EP - 322

JO - Journal of Environmental Management

JF - Journal of Environmental Management

ER -

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

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