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Preparation of high-surface area activated carbons from Paulownia wood by ZnCl2 activation

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a b s t r a c t
In this study, an activated carbon with high-surface area was prepared from Paulownia (P. tomentose)
wood by chemical activation with ZnCl2. The influences of carbonization temperature and impregnation
ratio on the pore structure of the activated carbon were investigated. Activation temperatures and
impregnation ratios were selected in the range of 400–700 0C and 0.5–4.0, respectively. Under the experimental conditions investigated, a carbonization temperature of 400 0C and impregnation ratio of 4.0
were found to be suitable for producing high-surface area activated carbon. It was shown that ZnCl2
works effectively as dehydration reagent below 500 0C. The obtained carbons were characterized by
nitrogen adsorption–desorption isotherms at 77 K. The results showed that the surface area and micropore
volume of activated carbons, which were determined by application of the Brunauer–Emmett–Teller
(BET) and t-plot methods, were achieved as high as 2736 m2/g and 0.69 cm3/g, respectively. The chemically
activated carbons were found to be mainly type I carbons. The microstructures of the char and activated
carbons were also examined with scanning electron microscopy (SEM).
Keywords: Paulownia wood, Activated carbon, Chemical activation, Textural characterization

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Ketersediaan

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Informasi Detail

Judul Seri

Microporous and Mesoporous Materials

No. Panggil

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Penerbit

: Elsevier Inc. All rights reserved., 2009

Deskripsi Fisik

Microporous and Mesoporous Materials 122 (2009) 189–194

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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