Bentonite SDBS-loaded composite for methylene blue removal from wastewater: An experimental and theoretical investigation

Abdenacer Flilissa; Khaoula Laouameur; Nour-Elhouda HammoudI; Nissren Tamam; Krishna Kumar Yadav; Boutheina Achouri; Abeer Yousef Alyami; Ouiem Flilissa; Jari S Algethami; Mohamed Abbas; Byong-Hun Jeon; Sabah Benboudiaf; Yacine Benguerba

doi:10.1016/j.envres.2023.117544

Bentonite SDBS-loaded composite for methylene blue removal from wastewater: An experimental and theoretical investigation

Environ Res. 2024 Jan 15:241:117544. doi: 10.1016/j.envres.2023.117544. Epub 2023 Nov 8.

Affiliations

¹ Laboratoire MCGN, Département de Pharmacie, Faculté de Médecine, Université Ferhat Abbas, Sétif-1, 19000, Algeria.
² Laboratoire MCGN, Département de Pharmacie, Faculté de Médecine, Université Ferhat Abbas, Sétif-1, 19000, Algeria; Faculté de Technologie, Département de Génie des procédés, Université Badji Mokhtar Annaba, 23000, Algeria.
³ Laboratoire de Biopharmacie Et Pharmacotechnie (LBPT), Ferhat Abbas Setif 1 University, Setif, Algeria.
⁴ Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
⁵ Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah, 64001, Iraq. Electronic address: envirokrishna@gmail.com.
⁶ Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif-1, 19000, Algeria.
⁷ Department of Chemistry, College of Science and Arts, Najran University, PO Box, 1988, Najran, 11001, Saudi Arabia.
⁸ Department of Chemistry, College of Science and Arts, Najran University, PO Box, 1988, Najran, 11001, Saudi Arabia; Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran 11001, Saudi Arabia.
⁹ Electrical Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia.
¹⁰ Department of Earth Resources & Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.

PMID: 37944689
DOI: 10.1016/j.envres.2023.117544

Abstract

This study addresses the urgent need for practical solutions to industrial water contamination. Utilizing Algerian Bentonite as an adsorbent due to its regional prevalence, we focused on the efficiency of the Bentonite/Sodium dodecylbenzene sulfonate (SDBS) matrix in Methylene Blue (MB) removal. The zero-charge point and IR spectroscopy characterized the adsorbent. Acidic pH facilitated SDBS adsorption on Bentonite, achieving equilibrium in 30 min with a pseudo-second-order model. The UPAC and Freundlich model indicated a q_max of 25.97 mg/g. SDBS adsorption was exothermic at elevated temperatures. The loaded Bentonite exhibited excellent MB adsorption (pH 3-9) with PSOM kinetics. Maximum adsorption capacity using IUPAC and GILES-recommended isotherms was q_max = 23.54 mg/g. The loaded Bentonite's specific surface area was 70.01 m²/g, and the Sips model correlated well with experimental data (R² = 0.98). This study highlights adsorption, mainly Bentonite/SDBS matrices, as a promising approach for remediating polluted areas by efficiently capturing and removing surfactants and dyes, contributing valuable insights to address industrial water contamination challenges.

Keywords: Adsorption; Bentonite; Methylene blue; Sodium dodecylbenzene sulfonate.

MeSH terms

Adsorption
Bentonite* / chemistry
Hydrogen-Ion Concentration
Kinetics
Methylene Blue
Wastewater
Water
Water Pollutants, Chemical* / analysis

Substances

Bentonite
Methylene Blue
Wastewater
Water Pollutants, Chemical
Water