Production of activated carbons from waste tyres for low temperature NOx control

Al-Rahbi, Amal S.; Williams, Paul T.

doi:10.1016/j.wasman.2016.01.030

Cited by 74 publications

(19 citation statements)

References 41 publications

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“…Therefore, although PF is a non-graphitizable material, ACs synthesized from this precursor presents outstanding physicochemical properties, with equal or even better results than most of the graphitizable precursors offering an interesting destination for waste PF [4,24,39,40].…”

Section: Tablementioning

confidence: 99%

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High value activated carbons from waste polystyrene foams

Paula

Castro

Ortega

et al. 2018

Microporous and Mesoporous Materials

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Activated carbons (AC) with excellent textural properties have been obtained for the first time from waste polystyrene foam (PF), without any previous treatment, following a simple and conventional two-step procedure (formation of char followed by chemical activation). Even considering that the PF is not a graphitizable material, the best AC produced from this precursor has a very high BET surface area larger than 2700 m 2 g-1 and a pore volume of 1.2 cm 2 g-1 , with a significant contribution of small mesopores. As a consequence, this AC reveals a surprising capacity to adsorption of relatively large molecules and a high specific capacitance when applied as a supercapacitor electrode. The maximum amount of adsorbed methylene blue obtained by batch equilibrium experiments are greater than 1g g-1. In the context of the technical difficulties and low economic return of the reuse and recycling of waste PF, this work offers a strategic destination for this environmentally unfriendly residue.

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Section: Tablementioning

confidence: 99%

“…Activated carbons are commonly used products that have been produced from a large number of different precursors, which may be mineral, biological or synthetic [1][2][3]. Increasing concern about sustainability in our society is encouraging the production of re-usable materials obtained not from natural resources but from waste [4,5].…”

Section: Introductionmentioning

confidence: 99%

High value activated carbons from waste polystyrene foams

Paula

Castro

Ortega

et al. 2018

Microporous and Mesoporous Materials

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“…Its production combines carbonization of a raw carbon precursor at temperatures below 800°C in an inert atmosphere and chemical or physical activation of an as-obtained semi-product. [62][63][64] The popular raw materials include coal with a various degree of metamorphosis (both low and high degrees of coalification, 65 brown coal, 66 peat, 67 charcoal, 68 seeds of fruits, nut shells and other lignocellulose materials [69][70][71][72][73][74][75][76][77] ), as well as industrial waste, 78 waste from the agri-food industry, [79][80][81][82][83] sewage residues, [84][85][86][87][88] waste tyres [89][90][91] and plastic waste. [92][93][94] Pyrolysis results in elimination of oxygen, hydrogen and nitrogen atoms.…”

Section: Active Carbons and Carbonized Materialsmentioning

confidence: 99%

Review of the Selected Carbon-Based Materials for Symmetric Supercapacitor Application

Ciszewski

Koszorek

Radko

et al. 2018

Journal of Elec Materi

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Carbon materials are among the most commonly used components of supercapacitor electrodes. Particularly, active carbons are recognized as cheap, available, and easily tailored materials. However, the carbon family, i.e. carbon products and carbon precursors, consists of many members. In this manuscript some of these materials, including laboratory scale-produced carbon gels, carbon nanotubes and carbonized materials, as well as industrial scale-produced graphites, pitches, coke and coal, were compared. Discussion was preceded by a short history of supercapacitors and review of each type of tested material, from early beginning to state-of-the-art. Morphology and structure of the materials were analyzed (specific surface area, pore volume and interlayer spacing determination), to evaluate their applicability in energy storage. Thermal analysis was used to determine the stability and purity. Finally, electrochemical evaluation using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy was performed. Outcomes of each analytical technique were summarized in different sections.

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“…The polarization of coconut shell activated carbon is relatively very low, and effectively forms covalent bonds with NOx, which has dipole moments in similar ranges to that in coconut shell activated carbon [9,13]. In addition, coconut shell activated carbon can physically adsorb NOx because its pore size is similar to movement range of the NOx gas molecules [14]. Park et al [15] reported that the NOx removal rate of coconut shell activated carbon was improved by 40% after plating the surface of the coconut shell activated carbon with Cu.…”

Section: Introductionmentioning

confidence: 99%

Removal Rates of NOx, SOx, and Fine Dust Particles in Textile Fabrics Coated with Zeolite and Coconut Shell Activated Carbon

Yang¹,

Mun²,

Lee³

2020

Preprint

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An effective method for coating textile fabrics with porous materials is proposed, and the removal rates of nitrogen oxides (NOx), sulfur oxides (SOx), and fine dust particles in the coated textile fabrics are evaluated. The textile fabrics made of polyester are used to effectively reduce fine dust particles through static electricity. Zeolite and coconut shell activated carbon are used as porous material to reduce SOx and NOx, respectively. The effects of the epoxy content and dilution solution types on the SOx removal rate of textile fabrics coated with zeolite are evaluated to determine the optimum coating conditions. In addition, the effects of external environmental conditions, such as washing and freeze thawing, on the SOx and NOx removal rates of the textile fabrics coated with porous materials using the optimum coating conditions are examined. The test results show that the SOx removal rate of textile fabrics coated with zeolite decreases with the increase in the epoxy content. The decrease is 2.9 times larger for textile fabrics coated using deionized water than those coated using isopropyl alcohol. After one wash, the SOx removal rate decreases dramatically. However, the decrease is reduced by 16% when the epoxy content ratio is increased by 0.5%. The effects of washing and freeze thawing on the SOx and NOx removal rates of textile fabrics coated using the deionized water diluted with the epoxy content ratio of 2% are minimal. Consequently, to maintain stable SOx and NOx removal rates under external environmental conditions such as washing and freeze thawing, 98% deionized water dilution and 2% epoxy content ratio are required for the optimum coating of textile fabrics with zeolite and coconut shell activated carbon.

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Production of activated carbons from waste tyres for low temperature NOx control

Cited by 74 publications

References 41 publications

High value activated carbons from waste polystyrene foams

High value activated carbons from waste polystyrene foams

Review of the Selected Carbon-Based Materials for Symmetric Supercapacitor Application

Removal Rates of NOx, SOx, and Fine Dust Particles in Textile Fabrics Coated with Zeolite and Coconut Shell Activated Carbon

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