Synthesis of Activated Carbon Using Bagasse and Recycled Carbon Fibers

Activated carbon was prepared using bagasse and carbon fiber (RCF) recycled from carbon fiber reinforced polymer (CFRP). The RCF surface has a sufficient amount of functional groups and can be used as a catalyst for the hydrolysis of bagasse cellulose. An RCF‐bagasse composite was fabricated by ultr...

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Veröffentlicht in:Chemical engineering & technology 2021-09, Vol.44 (9), p.1618-1622
Hauptverfasser: Yamamoto, Tetsuya, Makino, Yuta, Irisawa, Toshihira
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container_title Chemical engineering & technology
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creator Yamamoto, Tetsuya
Makino, Yuta
Irisawa, Toshihira
description Activated carbon was prepared using bagasse and carbon fiber (RCF) recycled from carbon fiber reinforced polymer (CFRP). The RCF surface has a sufficient amount of functional groups and can be used as a catalyst for the hydrolysis of bagasse cellulose. An RCF‐bagasse composite was fabricated by ultrasonic irradiation. During cellulose hydrolysis, carbon from the bagasse was activated with sulfuric acid, which impregnated the cellulose pores. When bagasse was subjected to high temperatures, the impregnated pores decomposed, resulting in micropores. The addition of RCF increased the specific surface area of activated carbon by up to 20 % when heat treatment was performed at a temperature higher than the carbonization temperature of bagasse. A recycling method for carbon fibers shorter than the critical fiber length is presented, with the aim of producing activated carbon with a high specific surface area and well‐developed micropores using bagasse as a raw material with the carbon fiber recycled from carbon fiber reinforced polymer. This method could also be applied to produce activated carbon with lignocellulose as a raw material.
doi_str_mv 10.1002/ceat.202100235
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subjects Activated carbon
Bagasse
Carbon fiber reinforced plastics
Carbon fibers
Cellulose
Fiber reinforced polymers
Functional groups
Heat treatment
High temperature
Hydrolysis
Recycled carbon fiber
Recycling
Sulfuric acid
title Synthesis of Activated Carbon Using Bagasse and Recycled Carbon Fibers
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