Microfibrillar Polysaccharide-Derived Biochars as Sodium Benzoate Adsorbents.

Liu, Dagang; Zhu, Yi; Li, Zehui; Xiao, Muye; Jiang, Chenyu; Chen, Muzi; Chen, Yunuo

Liu, Dagang; Zhu, Yi; Li, Zehui; Xiao, Muye; Jiang, Chenyu; Chen, Muzi; Chen, Yunuo.

Afiliación

Liu D; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Zhu Y; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Li Z; Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
Xiao M; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Jiang C; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Chen M; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Chen Y; Department of Chemistry, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China.

ACS Omega ; 2(6): 2959-2966, 2017 Jun 30.

Article en En | MEDLINE | ID: mdl-31457631

ABSTRACT

ABSTRACT

Microfibrillar biochars of chitin (CTF), chitosan (CSF), and cellulose (CLF) were fabricated via green homogenization and a pyrolysis process, and were subsequently explored as adsorbents for removing over-released sodium benzoate (SB) in aqueous systems. The structure, composition, morphology, and adsorption behavior of the as-fabricated biochars were characterized. Results suggest that all biochars, with a microscaled fibrillar structure and foam-like network morphology, underwent severe chemical transition during the pyrolysis process, thereby causing an enhancement of the Brunauer-Emmett-Teller surface area, pore volume, and aromatic and carbonaceous composition. Consequently, N-doped porous CTF/CSF microfibrillar biochars displayed a distinguished capture capacity toward SB compared to that of their fibrillar precursors. Tailoring the chemical composition, porous structure, and sorption mechanism constitutes a possible strategy to achieve adequate structural effects of polysaccharide microfibrillar chars for potential application in environmental treatment or bioenergy.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Omega Año: 2017 Tipo del documento: Article País de afiliación: China