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All Journal Seminar Nasional Teknik Kimia Kejuangan
Arenst Andreas
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science

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Synthesis of Salacca Peel Based Activated Carbons Using Microwave Induced ZnCl2 Activation Arenst Andreas; Jessica Atin; Christiandi Arifin; Hans Kristianto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

In this research, snake fruit (salacca) peel based activated carbons were prepared by ZnCl2 activation using microwave heating method. By using microwave heating, it is expected that the energy consumption in the activation process will be more efficient than that obtained by conventional heating. The effects of mass ratio of snake fruit peel to ZnCl2 (1:2 and 1:4), microwave power (130 watt, 230 watt, 380 watt, 540 watt, and 700 watt), and microwave radiation time (5, 15, 20, and 25 minutes) on the characteristics of activated carbons were investigated in detail. Activated carbons with BET surface area of 1796 m2/g were obtained at mass ratio of snake fruit peel to ZnCl2 of 1:4, microwave power of 540 watt, and 25 minutes of radiation time. Activated carbons were then used for adsorption of Cu(II) metal ions with initial concentration variations of 100, 150, 200, 250, and 300 ppm. Isotherm models used were Langmuir and Freundlich. From adsorption process, it was found that Langmuir model fitted experiment data well, with maximum adsorption capacity of 1262.62 mg Cu2+/g activated carbons. Kinetic model that were studied were pseudo first order, pseudo second order, and intraparticle diffusion mechanism. It was found that kinetic data followed well the pseudo second order model.
Synthesis of Palm Oil Based Nano Carbon Using Nebulized Spray Pyrolysis Nicolas Orlando; Windy Wilianti; Hans Kristianto; Arenst Andreas
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2017: PROSIDING SNTKK
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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In this experiment, nano carbon material was synthesized with nebulized spray pyrolysis method using palm oil. The catalyst used in this study was ferrocene with a concentration of 0.015 g/ml; 0,020 g/ml; and 0.025 g/ml. The catalyst was contacted with carbon precursors using floating catalyst method. The carrier gas used in this study was nitrogen gas at a rate of 1.21 sccm. Nebulized process was conducted for 30 minutes with an operating temperature of 650°C; 700°C; 750°C; 800°C; 850°C; and 900°C. In this study, nano carbon material was synthesized by deposition directly on the walls of the tube / stainless steel reactor so no need a substrate as a growth medium carbon nano. The characteristics of nano carbon material was analyzed by several methods, such as SEM, EDS and XRD. The XRD analysis of carbon sample synthesized at 0.025 g/ml catalyst and all variations of temperature showed the presence of the C (002) and C (100) peak indicated a graphitic structures. From SEM observation, it can be seen that the structure of carbon nano spheres were found at temperature of 700°C and mixtures of nanotubes and nanospheres were established at temperature above 800°C.
Co-Authors Christiandi Arifin Jessica Atin Kristianto, Hans Nicolas Orlando Windy Wilianti