Browsing by Author "Ismaila Olalekan Saheed"
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- ItemAdsorption of sulfamethoxazole in an aqueous environment onto a novel magnetic sporopollenin–cellulose triacetate(2025) Ismaila Olalekan Saheed; Lee Ruo Ying; Syed Fariq Fathullah Syed Yaacob; Megat Ahmad Kamal Megat Hanafiah; Ahmad Faiz Abdul Latip; Faiz Bukhari Mohd Suah
- ItemAdsorption potential of CuO-embedded chitosan bead for the removal of acid blue 25 dye(2024) Ismaila Olalekan Saheed; Nuraliah Irdina Zairuddin; Syaza Atikah Nizar; Megat Ahmad Kamal Megat Hanafiah; Ahmad Faiz Abdul Latip; Faiz Bukhari Mohd Suah
- ItemChitosan modifications for adsorption of pollutants – A review(2021) Ismaila Olalekan Saheed; Wen Da Oh; Faiz Bukhari Mohd Suah
- ItemDeveloping nano-micro size chitosan beads using imidazolium-based ionic liquid: A perspective(2023) Ismaila Olalekan Saheed; Faiz Bukhari Mohd Suah
- ItemEnhanced adsorption of acid Blue-25 dye onto chitosan/porous carbon composite modified in 1-allyl-3-methyl imidazolium bromide ionic liquid(2021) Ismaila Olalekan Saheed; Wen-Da Oh; Faiz Bukhari Mohd Suah
- ItemFabrication of chitosan@activated carbon composites in EmimAc for Cd(II) adsorption from aqueous solution: Experimental, optimization and DFT study(2023) Ismaila Olalekan Saheed; Enis Nadia Md Yusof; Wen-Da Oh; Megat Ahmad Kamal Megat Hanafiah; Faiz Bukhari Mohd Suah
- ItemImidazolium based ionic liquids modified polysaccharides for adsorption and solid-phase extraction applications: A review(2022) Ismaila Olalekan Saheed; Samsudeen Olanrewaju Azeez; Faiz Bukhari Mohd Suah
- ItemIsotherms, kinetics and thermodynamic sorption of paranitroaniline on Cocos nucifera shell activated carbon@TiO2 composite(Vietnam J. Chem., 2024-10-14) Samsudeen Olanrewaju Azeez; Muhammed Hatim Garuba; Ismaila Olalekan Saheed; Akeem Adebayo Jimoh; Musa Alfanla Kamaldeen; Damilola Tope OgundeleA comparative study was conducted on the adsorption capacity of Cocos nucifera shell-activated carbon (CNSA) and Cocos nucifera shell-activated carbon@TiO2 composite (CNSA-TiO2) for para-nitroaniline in an aqueous medium. The CNSA was carbonized at 500 ◦C and activated with 1 M HNO3 while the CNSA-TiO2 composite was prepared by wet impregnation method. The prepared adsorbents were characterized through Brunauer–Emmett–Teller (BET), energy dispersive X-ray (EDX) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). The BET-surface area of CNSA-TiO2 (748.96 m2/g) was established to be larger than CNSA (574.21 m2/g), however both materials are mesoporous. The effects of initial p-NA concentration, pH, adsorbent dosage, contact time, and temperature, were explored for both adsorbents. The results showed that the adsorption operating parameters influenced the adsorption process except for temperature, with maximum adsorption of 38.26 and 38.36 mg/g for CNSA and CNSA-TiO2, respectively. Freundlich, Langmuir, Temkin, and DubininRadushkevich isotherms were tested on the adsorption data, and the adsorption process of both adsorbents followed the Freundlich isotherm model (R2 > 0.988). Among the kinetic models studied, the pseudo-second-order model (R2 = 1) best described both processes. The thermodynamic parameters such as ∆G◦, ∆H◦ and ∆S ◦ were calculated. The process was exothermic, spontaneous and feasible.
- ItemIsotherms, kinetics and thermodynamic sorption of paranitroaniline on Cocos nucifera shell activated carbon@TiO2 composite(2024) Samsudeen Olanrewaju Azeez; Muhammed Hatim Garuba; Ismaila Olalekan Saheed; Akeem Adebayo Jimoh; Musa Alfanla Kamaldeen; Damilola Tope Ogundele
- ItemMesoporous chitosan/activated charcoal powder and bead modified in 1-butyl- 3-methylimidazolium acetate for the adsorption of acid blue 25 from an aqueous solution(2022) Ismaila Olalekan Saheed; Wen-Da Oh; Ahmad Faiz Abdul Latip; Faiz Bukhari Mohd Suah
- ItemRemoval of 1-Butyl-3-methylimidazolium bromide from an aqueous solution by using a spongy chitosan-activated carbon composite(2021) Ismaila Olalekan Saheed; Wen Da Oh; Faiz Bukhari Mohd Suah