Adsorption of Ni(II) onto Chemically Modified Spent Grated Coconut (Cocos Nucifera)

Faris Ilyamuddin, Hamzah and Khalid, K and Hanafiah, M.A.K.M (2017) Adsorption of Ni(II) onto Chemically Modified Spent Grated Coconut (Cocos Nucifera). In: 2nd International Conference on Materials Engineering and Nanotechnology, ICMEN 2017, 12-14 May 2017, Kuala Lumpur; Malaysia.

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A new adsorbent of plant waste origin from coconut processing food factory was explored for removing Ni(II) from aqueous solutions. Several parameters such as pH, dosage, concentration and contact time were studied to obtain optimum conditions for treatment of Ni(II) contaminated wastewater. Spent grated coconut (Cocos nucifera) treated with sulfuric acid (SSGC) showed good adsorption capacity for Ni(II) ion. The amount adsorbed was affected by solution pH with the highest value achieved at pH 5. Other optimum conditions found were; dosage of 0.02 g, and 60 min of equilibrium time. Ni(II) adsorption obeyed the pseudo-second order kinetic model which suggested that chemisorption mechanism occurred in the adsorption process. The equilibrium data presented a better fitting to the Langmuir isotherm model, an indication that monolayer adsorption occurred onto a homogeneous surface. The maximum adsorption capacity, qmax was 97.09 mg g⁻¹, thus SSGC can be classified as good and comparable with other plant waste adsorbents.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Bio-resources & Food Industry
Depositing User: Muhammad Akmal Azhar
Date Deposited: 19 Nov 2020 02:17
Last Modified: 19 Nov 2020 02:17

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