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Sustainable and scalable in-situ synthesis of hydrochar-wrapped Ti3AlC2-derived nanofibers as adsorbents to remove heavy metals

Dong, Xinsheng; Wang, Yaquan; Jia, Mingmin; Niu, Zhaoyang; Cai, Junmeng; Yu, Xi; Ke, Xuebin; Yao, Jianfeng; Zhang, Xingguang

Authors

Xinsheng Dong

Yaquan Wang

Mingmin Jia

Zhaoyang Niu

Junmeng Cai

Xi Yu

Jianfeng Yao

Xingguang Zhang

Abstract

To ensure a sustainable future, it is imperative to efficiently utilize abundant biomass to produce such as platform chemicals, transport fuels, and other raw materials; hydrochar is one of the promising candidates derived by hydrothermal carbonization of biomass in pressurized hot water. The synthesis of “hydrochar-wrapped Ti3AlC2-derived nanofibers” was successfully achieved by a facile one-pot hydrothermal reaction using glucose as the hydrochar precursor. Meanwhile, cellulose and pinewood sawdust as raw materials were also investigated. Products were characterized by XRD, N2 adsorption-desorption isotherms, SEM, TEM and FT-IR to investigate their crystal structures, textural properties, morphologies, and surface species. In the adsorption test to remove Cd(II) and Cu(II) in aqueous solution, hydrochar-wrapped nanofibers outperformed pure nanofibers derived from Ti3AlC2, hydrothermal carbon derived from glucose and commercial activated carbon. Finally, the regeneration, sorption kinetics, and possible adsorption mechanism were also explored.

Journal Article Type Article
Publication Date 2019-06
Journal Bioresource Technology
Print ISSN 0960-8524
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 282
Pages 222-227
Institution Citation Dong, X., Wang, Y., Jia, M., Niu, Z., Cai, J., Yu, X., …Zhang, X. (2019). Sustainable and scalable in-situ synthesis of hydrochar-wrapped Ti3AlC2-derived nanofibers as adsorbents to remove heavy metals. Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies, 282, 222-227. https://doi.org/10.1016/j.biortech.2019.03.010
DOI https://doi.org/10.1016/j.biortech.2019.03.010
Keywords Renewable Energy, Sustainability and the Environment; Environmental Engineering; Waste Management and Disposal; Bioengineering; General Medicine