生物炭对榴莲皮中镉离子的吸附能力

Q4 Materials Science

Journal of Surface Science and Technology Pub Date : 2018-06-21 DOI:10.18311/JSST/2018/11055

M. Napitupulu, D. K. Walanda, Yoga Natakusuma, M. Basir, Mahfudz

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引用次数: 8

摘要

研究了一定量的榴莲树皮(Durio zibethinus Murr)生物炭对不同ph值下镉离子的吸附能力。通过测量Cd (II)在228.8 nm处的原子吸收来监测吸附过程。结果表明，80 mg生物炭对镉离子的最佳吸附率为93.46%，吸附量为16.62 mg/g。最适pH为7.0，镉离子吸收率为97.94%，质量为17.42 mg/g。最佳浓度为20 ppm，对镉离子的吸附率为91.97%，吸附率为11.42 mg/g。通过Langmuir等温线方程，测定了生物炭对榴莲树皮的最高吸附量为33.33 mg/g，具有作为商品活性炭的潜力。

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Capacity of Adsorption of Cadmium (II) Ion by Bio-charcoal from Durian Barks

The study examined the adsorption capacity of definite amount of biocharcoal of Durian barks (Durio zibethinus Murr) to adsorb Cadmium ions at various pH. Biocharcoal was made by using pyrolysis method. The adsorption was monitored by measuring the Atomic Absorption of Cd (II) at 228.8 nm. Result shows that the optimum adsorption of Cadmium ion is 93.46% and the weight is 16.62 mg/g with 80 mg biocharcoal. The optimum pH is 7.0 with the percentage uptake of the cadmium ion 97.94%, and the weight is 17.42 mg/g. The optimum concentration is 20 ppm which can adsorb Cadmium ion 91.97%, or 11.42 mg/g. By using Langmuir isotherm equation, the highest adsorption of biocharcoal of Durian’s barks measured is 33.33 mg/g, which is potential as commercial activated carbon.

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来源期刊

Journal of Surface Science and Technology PHYSICS, APPLIED-

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期刊介绍： The Indian Society for Surface Science and Technology is an organization for the cultivation, interaction and dissemination of knowledge in the field of surface science and technology. It also strives to promote Industry-Academia interaction