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Adsorption of Fatty Acid on Beta-Cyclodextrin Functionalized Cellulose Nanofiber

Author

Listed:
  • Nor Hasmaliana Abdul Manas

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
    Institute of Bioproduct Development, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Nurhidayah Kumar Muhammad Firdaus Kumar

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Nurul Aqilah Mohd Shah

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Guang Yik Ling

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Nur Izyan Wan Azelee

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
    Institute of Bioproduct Development, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Siti Fatimah Zaharah Mohd Fuzi

    (Department of Technology and Natural Resources, Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Campus, Panchor 84600, Johor, Malaysia)

  • Nasratun Masngut

    (Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Khalil Yaakob, Kuantan 26300, Pahang, Malaysia)

  • Muhammad Abd Hadi Bunyamin

    (Faculty of Social Sciences and Humanities, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Rosli Md. Illias

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
    Institute of Bioproduct Development, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Hesham Ali El Enshasy

    (Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
    Institute of Bioproduct Development, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
    City of Scientific Research and Technology Applications (SRTA), New Burg Al Arab, Alexandria 21934, Egypt)

Abstract

Fatty acids in wastewater contribute to high chemical oxygen demand. The use of cellulose nanofiber (CNF) to adsorb the fatty acids is limited by its strong internal hydrogen bonding. This study aims to functionalize CNF with β-cyclodextrin (β-CD) and elucidate the adsorption behaviour which is yet to be explored. β-CD functionalized CNF (CNF/β-CD) was achieved by crosslinking of β-CD and citric acid. Functionalization using 7% ( w / v ) β-CD and 8% ( w / v ) citric acid enhanced mechanical properties by increasing its thermal decomposition. CNF/β-CD was more efficient in removing palmitic acid, showcased by double adsorption capacity of CNF/β-CD (33.14% removal) compared to CNF (15.62% removal). CNF/β-CD maintained its adsorption performance after five cycles compared to CNF, which reduced significantly after two cycles. At 25 °C, the adsorption reached equilibrium after 60 min, following a pseudo-second-order kinetic model. The intraparticle diffusion model suggested chemical adsorption and intraparticle interaction as the controlling steps in the adsorption process. The maximum adsorption capacity was 8349.23 mg g −1 and 10485.38 mg g −1 according to the Sips and Langmuir isotherm model, respectively. The adsorption was described as monolayer and endothermic, and it involved both a physisorption and chemisorption process. This is the first study to describe the adsorption behaviour of palmitic acid onto CNF/β-CD.

Suggested Citation

  • Nor Hasmaliana Abdul Manas & Nurhidayah Kumar Muhammad Firdaus Kumar & Nurul Aqilah Mohd Shah & Guang Yik Ling & Nur Izyan Wan Azelee & Siti Fatimah Zaharah Mohd Fuzi & Nasratun Masngut & Muhammad Abd, 2023. "Adsorption of Fatty Acid on Beta-Cyclodextrin Functionalized Cellulose Nanofiber," Sustainability, MDPI, vol. 15(2), pages 1-17, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1559-:d:1034783
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