Modification of rubber-seed shell activated carbon using chitosan for removal of Cu2+ and Pb2+ from aqueous solution

Borhan, A. and Hamidi, M.N.R. (2019) Modification of rubber-seed shell activated carbon using chitosan for removal of Cu2+ and Pb2+ from aqueous solution. In: UNSPECIFIED.

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Abstract

The needs to treat wastewater from plants and factories before releasing it to the environment is crucial to remove unwanted pollutants such as high concentration of heavy metals which may affect the environment. Adsorption via activated carbon (AC) has shown good traits in removing heavy metals in aqueous solution. In this research, rubber-seed shell (RSS), which is low cost and available abundantly, was tested as a precursor to produce porous carbons in a chemical scheme using chitosan. From synthesis parameters studied, AC with the largest surface area (530.73 m2/g), pore volume (0.2977 cm2/g) and pore diameter (2.243 nm), which majority consist of mesopores was obtained when RSS is impregnated with ratio of 1:2 and treated with activation temperature of 700°C for a period of 120 minutes. The results from adsorption test showed that under the effect of low concentration of 100ppm, sample C3 can remove 74.16 of Cu2+ and 76.15 of Pb2+. Under the influence of temperature of 25°C, highest 71.4 of Cu2+ and 72.93 of Pb2+ removal was observed while time taken to achieve equilibrium are 105 and 75 minutes, respectively. Based on the analysis, it inferred that the adsorption of Pb2+ fits the pseudo-first order (R = 0.9751) with root mean error of 1.006 while adsorption of Cu2+ fits the pseudo-second order (R = 0.9776) with root mean of 1.178. The obtained results show that agriculture waste product from RSS can be effectively used as an adsorption material. © 2019 Author(s).

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 2; Conference of 3rd International Symposium on Green and Sustainable Technology, ISGST 2019 ; Conference Date: 23 April 2019 Through 26 April 2019; Conference Code:151767
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 10 Nov 2023 03:25
Last Modified: 10 Nov 2023 03:25
URI: https://khub.utp.edu.my/scholars/id/eprint/11307

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