A novel method for production of activated carbon from waste tea by chemical activation with microwave energy

Yağmur, Emine; Özmak, Meryem; Aktaş, Zeki

doi:10.1016/j.fuel.2008.05.005

Cited by 301 publications

(150 citation statements)

References 31 publications

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“…On the other hand, microwave power can be varied without restriction, though there are only a few papers investigating the effect of microwave power [19,42,43]. Most researchers have used commercial or domestic microwave ovens, which are made for cooking with a single or a limited power range [11,13,14,18,20,22,26,28,31,32,41,[46][47][48]50]. Therefore, these researches are limited inasmuch as they reflect an observed reaction at just one fixed power level, which only gives a consistent heating rate and maximum temperature for a given target material.…”

Section: Resultsmentioning

confidence: 99%

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Microwave heating of carbon-based solid materials

Kim

Lee²,

Lee³

2014

Carbon letters

136

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As a part of the electromagnetic spectrum, microwaves heat materials fast and efficiently via direct energy transfer, while conventional heating methods rely on conduction and convection. To date, the use of microwave heating in the research of carbon-based materials has been mainly limited to liquid solutions. However, more rapid and efficient heating is possible in electron-rich solid materials, because the target materials absorb the energy of microwaves effectively and exclusively. Carbon-based solid materials are suitable for microwave-heating due to the delocalized pi electrons from sp2-hybridized carbon networks. In this perspective review, research on the microwave heating of carbon-based solid materials is extensively investigated. This review includes basic theories of microwave heating, and applications in carbon nanotubes, graphite and other carbon-based materials. Finally, priority issues are discussed for the advanced use of microwave heating, which have been poorly understood so far: heating mechanism, temperature control, and penetration depth.

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Section: Resultsmentioning

confidence: 99%

“…Wang et al [18] reported microwave regeneration of CNTs exhausted with dye. By the residual deposits created by microwave irradiation, specific surface area and pore volume were de- http://carbonlett.org ing effect [22], and the potential of scale-up [20] were reported.…”

Section: Microwave Heating Of Cntsmentioning

confidence: 99%

Microwave heating of carbon-based solid materials

Kim

Lee²,

Lee³

2014

Carbon letters

136

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“…The search for these materials could involve existing technologies of food industry. Wastes from these industries can be used to produce the adsorbents [4][5][6][7][8][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Production of active coal from pyrolyzed wood wastes by alkaline activation of KOH

Kuzmin¹,

Tamarkina²,

Shendrik³

et al. 2017

Ukr. food j.

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“…Actually, any carbonaceous material with high carbon content can be used as raw material for the preparation of activated carbons (ACs) [1]. This is the case of t agricultural solid wastes [2] , such as, cotton stalk [3,4], tobacco stem [5], rice husk [6], cork [7], bamboo [8], waste tea [9,10], coconut shell [11], oil palm fiber [12], durian shell [13], wood [14], sisal [15] and many others.…”

Section: Introductionmentioning

confidence: 99%