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Preparation and characterisation of raw chars and physically activated carbons derived from marine Posidonia oceanica (L.) fibres

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Abstract.
Industrial valorisation of lowcost and renewable biomass as rawprecursor of activated carbon for environmental applications is an interesting alternative to costly commercial activated carbons. In this study, the possible use of Mediterranean, Posidonia oceanica fibrous biomass, as a precursor for chars and physically activated carbons, is investigated. Firstly, the rawmarine materialwas chemically and biochemically characterised throughout dry-basis elemental, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) analysis. Then, several P. oceanica chars were prepared and characterised under different pyrolysis times and temperatures. In addition, physically activated carbons (PACs) were produced via water steam flow under various activation periods.
The results showed that the pyrolysis induces the creation of pores at different levels with respect to the
involved temperature. Thereafter, the physical activation tends to enhance the development of the porous
structure. In that issue, the performed Brunauer–Emmett–Teller (BET) and Barrett–Joiner–Halenda (BJH)
analysis revealed that the prepared PACs have a mainly mesoporous inner morphology with a varying
fraction of micropores.

Keywords:
Posidonia fibres
Char
Physical activation
Adsorption
Modelling

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Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 165 (2009) 240–249

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

LINGKUNGAN HIDUP

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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