Preparation and characterization of mesoporous activated carbons from waste tyre

Song, Xinning; Xu, Rong; Lai, Anbang; Lo, Hung-Kun; Neo, F. L.; Wang, K.

doi:10.1002/apj.544

Cited by 16 publications

(13 citation statements)

References 17 publications

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“…These studies focused on the characteristics of the final product such as the surface area, pore volume and pore size distribution. However, very few studies have involved the tailored mesopore AC preparation, fractal dimension characterization of AC, and activating agent recovery (Song et al 2012;. Moreover, KOH as an activating agent has some disadvantages, such as a strong erosion rate, high cost, and low carbon yield.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of K2CO3-Activated Kraft Lignin Carbon

Li¹,

Luo²,

Dou³

et al. 2016

BioResources

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A series of activated carbons (ACs) were prepared by K2CO3 activation from kraft lignin (KL) that was recovered from papermaking black liquor. The effects of process parameters such as the activation temperature (AT), activated period, K2CO3 to KL mass ratio, and N2 flow rate on the characteristics of the final product were determined. The ACs were characterized using nitrogen adsorption, morphology, and fractal dimension analyses. The results showed that the AT was the main factor influencing the yield, surface area, and pore structure. The yield of ACs obviously decreased from 50.6% to 20.5% with increasing AT from 600 °C to 1000 °C, and decreased with increasing K2CO3/KL mass ratio. Activation time and N2 flow rate had slight effect on the yield of ACs. The surface area and total pore volume increased as the AT rose to 900 °C and then decreased with further increases in temperature. The maximum surface area and total pore volume were 1816.3 m 2 /g and 1.26 cm 3 /g, respectively, at a K2CO3 to KL mass ratio of 3:1, AT of 900 °C, activation time of 2 h, and N2 flow rate of 70 cm 3 /min. The pore structure of the ACs could be tailored by controlling the AT. As the AT was increased from 700 to 1000 °C, the mesoporosity increased from 11.6% to 95.9%. SEM images indicated that the morphology of ACs was modified by the AT. The K2CO3 was partially recycled.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of K2CO3-Activated Kraft Lignin Carbon

Li¹,

Luo²,

Dou³

et al. 2016

BioResources

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“…In contrast, CAC isotherm (triangles) shows little hysteresis, suggesting that the sample is largely microporous. Figure (b) presents the pore size distributions derived from N 2 isotherms via NLDFT method . It is evident that TAC comprises a large portion of mesopores with the sizes ranging from 2.0 to 6.0 nm, whereas CAC contains primarily micropores with the size peak at ~ 1.1 nm.…”

Section: Resultsmentioning

confidence: 99%

“…N 2 adsorption isotherms were measured on two carbon samples at 77 K with a pore and surface analyzer (Autosorb‐1, Quantachrome), from which the pore size distributions were derived via the nonlocal density functional theory (NLDFT). The details of the preparation and characterization of the TAC can be found in Song et al . The pH of dye solutions was measured using Schott pH metre Lab 850.…”

Section: Methodsmentioning

confidence: 99%

High capacity adsorption of malachite green in a mesoporous tyre‐derived activated carbon

Song

Wang

2012

Asia-Pacific J Chem Eng

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A mesoporous activated carbon derived from waste tyres was used to remove a toxic basic dye (malachite green oxalate, or MG) from aqueous solutions. The carbon contains a large volume fraction of mesopores and presents an excellent adsorption capacity of~424 mg/g towards MG, which is much higher than a commercial carbon with similar surface area. The adsorption equilibrium and kinetics were found to follow Langmuir equation and second-order kinetics, respectively. The structure of the carbon was characterised and based on which the dye adsorption mechanism was discussed.

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“…Consequently, such materials show a promising potential for several applications such as energy storage/conversion, environmental remediation, water treatment, sensing, and catalysis. [ 21,44,80 ] Other activation methods, including microwave‐induced activation and other physicochemical activation, are also widely used for creating porosity in the waste‐derived biomass. [ 81 ] Physicochemical activation involves the chemical activation followed by the physical activation and is generally used for controlling the pore structure and pore diameter of the waste carbon sources.…”

Section: Methodologies To Synthesize Ncm Derived From Waste Sourcesmentioning

confidence: 99%

“…Physical activation is composed of two stages: the first step involves the carbonization of the raw precursor, which is followed by the activation in the second step with CO 2 and/or steam. [ 21,22,44 ] The heat treatment normally occurs in the temperature range of 600 to 900 °C in an inert atmosphere of either argon or nitrogen. CO 2 is considered as the preferred choice for the physical activation due to the ease of handling, control of various parameters and slow reaction rate.…”

Section: Methodologies To Synthesize Ncm Derived From Waste Sourcesmentioning

confidence: 99%

Recent Advances in Functionalized Nanoporous Carbons Derived from Waste Resources and Their Applications in Energy and Environment

Joseph

Saianand

Benzigar

et al. 2020

Advanced Sustainable Systems

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Nanoporous carbon materials have been widely utilized for myriad applications owing to their intriguing physicochemical properties. Development of green and clean synthetic techniques/procedures to generate nanoporous carbon materials especially derived from inexpensive waste precursors/resources has rejuvenated the chemistry of carbon materials owing to the abundant nature and low cost of these sources and their ability to generate unique surface/porous structures. These nanoporous carbon materials have been heavily explored in multiple sectors such as soil/water remediation, adsorption and separation, catalysis, energy storage/conversion, capture and conversion of carbon dioxide. In this topical review, the recent state‐of‐the‐art research progress achieved in the design and development of waste‐derived advanced functionalized porous carbon materials are summarized. The various lab‐specific approaches and methodologies involved in synthesizing these materials are discussed in detail. In addition, the potential applications of waste‐derived functionalized porous carbons in the fields of environment, energy storage, and conversion applications are highlighted. Finally, a discussion on a few suggestions for future research is concluded. It is believed that this review provide inspiration for many new research activities over a wide range of disciplines.

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Preparation and characterization of mesoporous activated carbons from waste tyre

Cited by 16 publications

References 17 publications

Preparation and Characterization of K2CO3-Activated Kraft Lignin Carbon

Preparation and Characterization of K2CO3-Activated Kraft Lignin Carbon

High capacity adsorption of malachite green in a mesoporous tyre‐derived activated carbon

Recent Advances in Functionalized Nanoporous Carbons Derived from Waste Resources and Their Applications in Energy and Environment

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