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, Zhang, Xingguang and Yao, Jianfeng (2019). Sustainable and scalable in-situ synthesis of hydrochar-wrapped Ti3AlC2-derived nanofibers as adsorbents to remove heavy metals. Bioresource Technology, 282 , pp. 222-227.

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.

Publication DOI: https://doi.org/10.1016/j.biortech.2019.03.010
Divisions: Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Adsorption,Biomass,Heavy metals,Hydrochar,Ti AlC,Bioengineering,Environmental Engineering,Renewable Energy, Sustainability and the Environment,Waste Management and Disposal
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Related URLs: https://www.sci ... 3566?via%3Dihub (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Online Date: 2019-06-01
Published Date: 2019-06-01
Authors: Dong, Xinsheng
Wang, Yaquan
Jia, Mingmin
Niu, Zhaoyang
Cai, Junmeng
Yu, Xi ( 0000-0003-3574-6032)
Ke, Xuebin
Zhang, Xingguang
Yao, Jianfeng

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Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 5 March 2020.

License: Creative Commons Attribution Non-commercial No Derivatives


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