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    Preparation, structural evaluation and adsorptive properties of activated carbon from agricultural waste biomass
    (Elsevier Science Bv, 2015) Koseoglu, Eda; Akmil-Basar, Canan
    The purpose of this study is to produce the low-cost activated carbon from the orange peel, known as a waste of fruit juice industry, by chemical activation using zinc chloride (ZnCl2) and potassium carbonate (K2CO3). The effects of the activation temperature and type of activation reagents on the surface and chemical properties of activated carbon were investigated. The activation temperatures and impregnation ratios were selected at the range of 500-1000 degrees C and 1:1, respectively. The carbon content of activated carbons resulted 70% while BET surface area of activated carbons prepared with K2CO3 and ZnCl2 activation is 1352 m(2) g (1) and 1215 m(2) g (1), respectively. An increase in the temperature for both K2CO3 and ZnCl2 led to a decrease in the yields of the activated carbons. The yield of ZnCl2 series is higher than that of K2CO3. The obtained activated carbons were heterosporous with the micropore. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
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    Utilization potential lignocellulosic waste biomass to produce carbon support by using new activation reagent (H3BO3 and SrCl2): structural and adsorptive properties
    (Taylor & Francis Inc, 2016) Akmil-Basar, Canan; Koseoglu, Eda; Onal, Yunus
    Activated carbons series were produced from the orange peel by chemical activation using strontium chloride (SrCl2) and boric acid (H3BO3). The activation temperature effects and type of activation reagents on the surface and chemical properties of activated carbon have been investigated. The surface area of the activated carbons is 577 and 290m(2) g(-1) for H3BO3 and SrCl2 activation(,) respectively. An increase in the temperature for both H3BO3 and SrCl2 led to a decrease in the yields of the activated carbons. The yield of H3BO3 series is higher than the yield of SrCl2. The obtained activated carbons were heteroporous with the mesopore. Orange peel can be used alternative waste biomass for the mesoporous activated carbon productions. Samples were characterized by XRD, SEM, FTIR, and TGA analysis.