Chitin-Based Magnesium Oxide Biocomposite for the Removal of Methyl Orange from Water

Hicham Majdoubi, Ayoub Abdullah Alqadami, Rachid EL Kaim Billah, Marta Otero, Byong-Hun Jeon, Hassan Hannache, Youssef Tamraoui and Moonis Ali Khan ()
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Hicham Majdoubi: Materials Science Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, Benguerir 43150, Morocco
Ayoub Abdullah Alqadami: Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Rachid EL Kaim Billah: Laboratory of Coordination and Analytical Chemistry, Department of Chemistry, Faculty of Sciences, University of Chouaib Doukkali, Avenue Jabran Khalil Jabran, B.P 299, El Jadida 24000, Morocco
Marta Otero: Departmento de Química y Física Aplicadas, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain
Byong-Hun Jeon: Department of Earth Resources & Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
Hassan Hannache: Materials Science Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, Benguerir 43150, Morocco
Youssef Tamraoui: Materials Science Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, Benguerir 43150, Morocco
Moonis Ali Khan: Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia

IJERPH, 2023, vol. 20, issue 1, 1-16

Abstract: In this work, a cost-effective chitin-based magnesium oxide (CHt@MgO) biocomposite with excellent anionic methyl orange (MO) dye removal efficiency from water was developed. The CHt@MgO biocomposite was characterized by FT-IR, XRD, SEM-EDX, and TGA/DTG. Results proved the successful synthesis of CHt@MgO biocomposite. Adsorption of MO on the CHt@MgO biocomposite was optimized by varying experimental conditions such as pH, amount of adsorbent (m), contact time (t), temperature (T), and initial MO concentration ( C o ). The optimized parameters for MO removal by CHt@MgO biocomposite were as follows: pH, 6; m, 2 g/L; t, 120 min. Two common isotherm models (Langmuir and Freundlich) and three kinetic models (pseudo-first-order (PFO), pseudo-second-order (PSO), and intraparticle diffusion (IPD)) were tested for experimental data fitting. Results showed that Langmuir and PFO were the most suitable to respectively describe equilibrium and kinetic results on the adsorption of MO adsorption on CHt@MgO biocomposite. The maximum Langmuir monolayer adsorption capacity ( q m ) on CHt@MgO biocomposite toward MO dye was 252 mg/g at 60 °C. The reusability tests revealed that CHt@MgO biocomposite possessed high (90.7%) removal efficiency after the fifth regeneration cycle.

Keywords: sea food waste; waste management; anionic dye; adsorption; regeneration (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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