Preparation and Characteristics of Activated Carbon from Wood Bark and Its Use for Adsorption of Cu (II)

Abstract

In this study, wood bark activated carbon (bark activated carbon, BAC) were prepared by the method of steam activation at the activation temperature of 700 °C and 800 °C. The pore structures of BAC samples obtained were analysed via means of low temperature nitrogen adsorption. Iodine adsorption value and Cu (II) ions adsorption capacity were also investigated. The results indicated that micropores and mesopores were abundant in BACs, which indicated a better adsorption effect in iodine and Cu (II) ions adsorption capacities than wood bark carbon. The efficiency for the removal of Cu (II) ions were carried out as a function of contact time. The optimal dosage of Cu (II) ions by BAC700 and BAC800 samples is 5 g/L with an optimal time of 30 min. The kinetic studies of BACs revealed a better correlation with the Lagergren pseudo-second order model.

Low-Cost Biochar Adsorbents for Water Purification Including Microplastics Removal

“…Longer activation times are needed with CO 2 if larger pores are required. The results reported herein are supported by those of Zhang et al (2014) who used poplar wood bark and Cao et al (2002), who detailed the outcomes of steam activation of poplar wood bark and a mixture of soft wood bark, respectively [19,37]. Both materials produced microporous ACs with similar surface areas (e.g., 555 m 2 /g for poplar bark at 800 • C and 60 min).…”

Preparation and Structural and Electrochemical Characteristics of a Carbon-Containing Material Based on Aspen Bark Modified with Zinc and Iron Chlorides

“…Одним из основных способов повышения эффективности использования коры в качестве топлива, а также создания на ее основе электродных и пористых материалов является превращение древесной биомассы в полезные продукты посредством пиролиза. Несмотря на большое число работ, посвященных пиролизу древесины и синтезу углеродных материалов на ее основе [5][6][7][8][9][10], исследований по термохими-ческому превращению коры в углеродные продукты немного [11][12][13][14].…”

Untitled

“…Wood bark was used to prepare activated carbon by steam activation at a temperature of 700 °C and 800 °C. The pore structures of the produced samples were analyzed by means of low temperature nitrogen adsorption 19 . Coconut shell is also used in the preparation of activated carbon by treatment with phosphoric acid (H 3 PO 4 ) using the response surface methodology (RSM).…”