ADSORPTION BEHAVIOUR OF P-NITROPHENOL IN AQUEOUS MEDIUM ON NON-TREATED SABA AND LADY FINGER BANANA PEELS

  • Norlaili Abu Bakar Department of chemistry, Universiti Pendidikan Sultan Idris Tanjong Malim Perak
  • Wan Rusmawati Wan Mahamod Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris Tanjong Malim Perak
  • Norhayati Hashim Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris Tanjong Malim Perak
  • Yusnita Juahir Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris Tanjong Malim Perak
  • Aiza Harun Faculty of Applied Sciences, Universiti Teknologi Mara, 26400 Bandar Jengka, Pahang, Malaysia.
  • Alizar Ulianas Department of Chemistry, Faculty of Mathematics and Science, Universitas Negeri Padang, Sumatera Barat 25131, Indonesia
Keywords: phenolic compound, plant waste, banana peel, langmuir, freundlich, porous

Abstract

The adsorption behavior of p-nitrophenol (pNP) was studied on two types of banana peels (Saba banana and Lady Finger banana) in aqueous medium. The results showed that, the optimum mass of banana peels to adsorb p-NP were 0.1 g (Saba banana) and 0.02 g (Lady Finger banana). The adsorption exhibits higher uptake of p-NP onto Saba and Lady Finger banana peels in pH 7. The adsorption of p-NP onto both type of banana peels achieved equilibrium at 480 minutes contact time. The adsorptions of p-NP onto banana peel well fitted with Freundlich isotherm (R2 > 0.9). The FESEM micrographs showed that both peels have an irregular shape and porous texture which contributed to the adsorption behavior of p-NP in aqueous medium onto banana peels.

Published
2021-12-20
Section
Original Research Articles