Textural and morphological study of activated carbon fibers prepared from kenaf

Cuerda-Correa, Eduardo M.; Macı́as-Garcı́a, A.; Díez, M.A. Díaz; Ortiz, Ángel L.

doi:10.1016/j.micromeso.2007.08.025

Cited by 33 publications

(16 citation statements)

References 29 publications

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“…In recent years, growing research interest has been focused on various natural materials, which can be used for the production of ACFs with high adsorption capacity. Some of the natural materials include Kenaf [5], cotton stalk [6], coconut shell [7], wood [8,9] and paper [10]. However, limited reports were found using bamboo as raw materials for the preparation of high surface ACFs, except activated carbon [11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Preparation, Surface and Pore Structure of High Surface Area Activated Carbon Fibers from Bamboo by Steam Activation

Yang

et al. 2014

Materials

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High surface area activated carbon fibers (ACF) have been prepared from bamboo by steam activation after liquefaction and curing. The influences of activation temperature on the microstructure, surface area and porosity were investigated. The results showed that ACF from bamboo at 850 °C have the maximum iodine and methylene blue adsorption values. Aside from the graphitic carbon, phenolic and carbonyl groups were the predominant functions on the surface of activated carbon fiber from bamboo. The prepared ACF from bamboo were found to be mainly type I of isotherm, but the mesoporosity presented an increasing trend after 700 °C. The surface area and micropore volume of samples, which were determined by application of the Brunauer-Emmett-Teller (BET) and t-plot methods, were as high as 2024 m2/g and 0.569 cm3/g, respectively. It was also found that the higher activation temperature produced the more ordered microcrystalline structure of ACF from bamboo.

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Section: Introductionmentioning

confidence: 99%

Preparation, Surface and Pore Structure of High Surface Area Activated Carbon Fibers from Bamboo by Steam Activation

Yang

et al. 2014

Materials

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“…Samples morphology was observed using a scanning electron microscope (SEM; model S-3600N, Hitachi, Japan). The specimens for SEM observation were prepared as is indicated elsewhere (Cuerda-Correa et al 2008).…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…In the last few years, a number of natural plants or synthetic materials have been tested as fibrous precursors for the preparation of ACFs. These include natural cotton fibers (Chen et al 2006), piassava (Attalea funifera) (Ferreira Avelar et al 2010), cellulose (Ling et al 1999), kenaf (Cuerda-Correa et al 2008;Aber et al 2009), viscose rayon (Bohra and Saxena 1991;Rodríguez-Reinoso et al 2000;Huidobro et al 2001;Huang et al 2002), pith (Qiao et al 1997), and polyacrylonitrile (Zaini at al. 2010).…”

Section: Introductionmentioning

confidence: 99%

“…There are several studies related to the preparation of ACs and ACFs from kenaf natural fibers (KNFs) (Hirano et al 1997;Miyata et al 1999;Inagaki et al 2004;Pittman et al 2004;Cuerda-Correa et al 2008;Aber et al 2009;Valente Nabais et al 2009;Aber and Sheydaei 2011). The results obtained have demonstrated that KNFs are good candidates for the preparation of ACFs with promising applications in the adsorption of heavy metals in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Micropore-Containing Adsorbents from Kenaf Fibers and Their Use in Mercury Removal from Aqueous Solution

Macı́as-Garcı́a

Cuerda-Correa

Olivares-Marín

et al. 2012

Journal of Natural Fibers

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Here, a number of activated carbon fibers (ACFs) prepared from kenaf natural fibers (KNFs) by chemical activation with KOH under different operation conditions have been used as adsorbentsfor the removal of mercury from aqueous solutions. Samples were characterized by N 2 adsorption at 77 K, mercury porosimetry, scanning electronic microscopy (SEM), and FT-IR spectroscopy. The adsorption of mercury at 25 • C without pH adjustment from an aqueous solution was evaluated from both kinetic and equilibrium standpoints. It was found that the activation conditions during the preparation of ACFs (i.e., impregnation ratios and activation temperatures) had a strong influence on the porosity of the resultant samples and, therefore, on their mercury adsorption capacity. The sample prepared at 800 • C using an impregnation ratio of 3:1 (named K3-800) presented the maximum Langmuir adsorption capacity (10.53 mg/g). This sample showed a specific surface area of 881 m 2 /g, a micropore volume of 0.60 cm 3 /g, and the highest total pore volume (2.69 cm 3 /g).

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“…Otros precursores empleados. Rayón [Pastor et al, 1999;Rodríguez-Reinoso, 2000;Huidobro, 2001], pitch [Ishii et al, 1997;Gondy and Ehrburger, 1997;Villaplana-Ortego et al, 2007], kenaf [Cuerda-Correa et al, 2008], resinas fenólicas [Yang et al, 2002;Gaur et al, 2006;Zabaniotou et al, 2008], etc.…”

Section: Adsorción En Sólidos Porososunclassified

Almacenamiento de hidrógeno en fibras de carbón activadas con fluidos supercríticos

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Textural and morphological study of activated carbon fibers prepared from kenaf

Cited by 33 publications

References 29 publications

Preparation, Surface and Pore Structure of High Surface Area Activated Carbon Fibers from Bamboo by Steam Activation

Preparation, Surface and Pore Structure of High Surface Area Activated Carbon Fibers from Bamboo by Steam Activation

Preparation of Micropore-Containing Adsorbents from Kenaf Fibers and Their Use in Mercury Removal from Aqueous Solution

Almacenamiento de hidrógeno en fibras de carbón activadas con fluidos supercríticos

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