Evaluating the efficiency of different natural clay sediments for the removal of chlortetracycline from aqueous solutions

Mohammad I. Al-Wabel, Munir Ahmad, Adel R.A. Usman, Abdulazeem S. Sallam, Qaiser Hussain, Ridwan B. Binyameen, Muhammed R. Shehu, Yong Sik Ok

Research output: Contribution to journalArticle

Abstract

Natural clay sediments were collected from ten different localities in Saudi Arabia (S-1 from eastern, S-2 to S-4 from middle and S-5 to S-10 from western regions), characterized and evaluated for their efficiency towards chlortetracycline (CTC) removal from aqueous solutions. Sediment S-4 exhibited highest surface area (288.5 m2 g−1), followed by S-5, S-9, and S-1 (252.1, 249.6, and 110.4 m2 g−1, respectively). Sediments S-5, S-9, S-2, and S-4 showed the highest cation exchange capacities (CEC) (62.33, 56.54, 52.72, and 46.85 cmol kg−1, respectively). The pH range of 3.5–5.5 was optimum for the highest CTC removal. Freundlich model was best fitted to CTC sorption data (R2 = 0.96–0.99), followed by Dubinin-Radushkevich model (R2 = 0.89–0.97). The sediments S-4, S-5, and S-9 exhibited the highest CTC removal efficiency (98.80–99.05%), which could be due to higher smectite and kaolinite contents, CEC, surface area and layered structure. Post-sorption XRD patterns shown new peaks and peak shifts confirming the sorption of CTC. Electrostatic interactions, interlayer sorption and H–π bonding were the potential CTC sorption mechanisms. Therefore, natural clay sediments with high sorption capacities could efficiently remove CTC from contaminated aqueous media.

Original languageEnglish
Article number121500
JournalJournal of hazardous materials
Volume384
DOIs
Publication statusPublished - 2020 Feb 15

Fingerprint

Chlortetracycline
Sorption
Sediments
Clay
aqueous solution
sorption
clay
sediment
cation exchange capacity
Ion exchange
surface area
Positive ions
Cations
S 10
Kaolinite
Kaolin
Coulomb interactions
Saudi Arabia
smectite
kaolinite

Keywords

  • Adsorption
  • Antibiotics
  • Intercalation
  • Isotherms
  • Minerals

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Evaluating the efficiency of different natural clay sediments for the removal of chlortetracycline from aqueous solutions. / Al-Wabel, Mohammad I.; Ahmad, Munir; Usman, Adel R.A.; Sallam, Abdulazeem S.; Hussain, Qaiser; Binyameen, Ridwan B.; Shehu, Muhammed R.; Ok, Yong Sik.

In: Journal of hazardous materials, Vol. 384, 121500, 15.02.2020.

Research output: Contribution to journalArticle

Al-Wabel, Mohammad I. ; Ahmad, Munir ; Usman, Adel R.A. ; Sallam, Abdulazeem S. ; Hussain, Qaiser ; Binyameen, Ridwan B. ; Shehu, Muhammed R. ; Ok, Yong Sik. / Evaluating the efficiency of different natural clay sediments for the removal of chlortetracycline from aqueous solutions. In: Journal of hazardous materials. 2020 ; Vol. 384.
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abstract = "Natural clay sediments were collected from ten different localities in Saudi Arabia (S-1 from eastern, S-2 to S-4 from middle and S-5 to S-10 from western regions), characterized and evaluated for their efficiency towards chlortetracycline (CTC) removal from aqueous solutions. Sediment S-4 exhibited highest surface area (288.5 m2 g−1), followed by S-5, S-9, and S-1 (252.1, 249.6, and 110.4 m2 g−1, respectively). Sediments S-5, S-9, S-2, and S-4 showed the highest cation exchange capacities (CEC) (62.33, 56.54, 52.72, and 46.85 cmol kg−1, respectively). The pH range of 3.5–5.5 was optimum for the highest CTC removal. Freundlich model was best fitted to CTC sorption data (R2 = 0.96–0.99), followed by Dubinin-Radushkevich model (R2 = 0.89–0.97). The sediments S-4, S-5, and S-9 exhibited the highest CTC removal efficiency (98.80–99.05{\%}), which could be due to higher smectite and kaolinite contents, CEC, surface area and layered structure. Post-sorption XRD patterns shown new peaks and peak shifts confirming the sorption of CTC. Electrostatic interactions, interlayer sorption and H–π bonding were the potential CTC sorption mechanisms. Therefore, natural clay sediments with high sorption capacities could efficiently remove CTC from contaminated aqueous media.",
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AU - Ahmad, Munir

AU - Usman, Adel R.A.

AU - Sallam, Abdulazeem S.

AU - Hussain, Qaiser

AU - Binyameen, Ridwan B.

AU - Shehu, Muhammed R.

AU - Ok, Yong Sik

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AB - Natural clay sediments were collected from ten different localities in Saudi Arabia (S-1 from eastern, S-2 to S-4 from middle and S-5 to S-10 from western regions), characterized and evaluated for their efficiency towards chlortetracycline (CTC) removal from aqueous solutions. Sediment S-4 exhibited highest surface area (288.5 m2 g−1), followed by S-5, S-9, and S-1 (252.1, 249.6, and 110.4 m2 g−1, respectively). Sediments S-5, S-9, S-2, and S-4 showed the highest cation exchange capacities (CEC) (62.33, 56.54, 52.72, and 46.85 cmol kg−1, respectively). The pH range of 3.5–5.5 was optimum for the highest CTC removal. Freundlich model was best fitted to CTC sorption data (R2 = 0.96–0.99), followed by Dubinin-Radushkevich model (R2 = 0.89–0.97). The sediments S-4, S-5, and S-9 exhibited the highest CTC removal efficiency (98.80–99.05%), which could be due to higher smectite and kaolinite contents, CEC, surface area and layered structure. Post-sorption XRD patterns shown new peaks and peak shifts confirming the sorption of CTC. Electrostatic interactions, interlayer sorption and H–π bonding were the potential CTC sorption mechanisms. Therefore, natural clay sediments with high sorption capacities could efficiently remove CTC from contaminated aqueous media.

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KW - Isotherms

KW - Minerals

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