期刊
JOURNAL OF NATURAL FIBERS
卷 16, 期 7, 页码 961-976出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2018.1442280
关键词
Lignocellulosic fibers; CO2 activation; charcoal corona discharge; vegetable fibers
资金
- Fundacao Amparo a Pesquisa do Estado do Amazonas [RH-Doutorado-005/2012]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [BEX 14459/13-2]
- Conselho Nacional de Pesquisa e Desenvolvimento (CNPq) [201900/2014-9]
- Fundacao de Apoio a Pesquisa do Estado de Minas Gerais (FAPEMIG)
- United States Department of Agriculture (USDA)
- Rede Brasileira de Compositos e(RELIGAR)
- Graduate Program in Wood Science and Technology (UFLA), Brazil
This study aimed to evaluate the effect of different pretreatments of Amazon piassava (Leopoldinia piassaba) fibers on microstructure, thermal, and physical properties of the ensuing activated carbons (ACs). ACs were prepared from untreated and pretreated piassava fibers by physical activation using CO2 at 800?C. Pretreatments include: mercerization, corona discharge, and removal of extractives. Scanning electron micrographs showed the formation of nanoscale pores after the activation process of the charcoal. ACs from pretreated piassava fibers presented lower crystallinity and higher thermal stability than the untreated sample. ACs from Amazon piassava fibers are potential adsorbent materials for a myriad of applications.
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