Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

Wu, Lin Mei, Tong, Dong Shen, Li, Chun Sheng, Ji, Sheng Fu, Lin, Chun Xiang, Yang, Hui Min, Zhong, Zhe Ke, Xu, Chuan Yun, Yu, Wei Hua and Zhou, Chun Hui (2015) Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions. Applied Clay Science, 119 116-125. doi:10.1016/j.clay.2015.06.015

Author Wu, Lin Mei
Tong, Dong Shen
Li, Chun Sheng
Ji, Sheng Fu
Lin, Chun Xiang
Yang, Hui Min
Zhong, Zhe Ke
Xu, Chuan Yun
Yu, Wei Hua
Zhou, Chun Hui
Title Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions
Journal name Applied Clay Science   Check publisher's open access policy
ISSN 0169-1317
Publication date 2015-06-28
Sub-type Article (original research)
DOI 10.1016/j.clay.2015.06.015
Open Access Status Not yet assessed
Volume 119
Start page 116
End page 125
Total pages 10
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 1907 Geology
1906 Geochemistry and Petrology
Abstract Montmorillonite-hydrochar nanocomposite is of great significance in biofuel production, energy storage and conversion, catalysis, environmental protection, and biology and medicine. To understand how montmorillonite facilitates the conversion of cellulose into hydrochar, it is essential to accurately control the properties and structure of hydrochar and its nanocomposites for technological applications. In this work, hydrochar and montmorillonite-hydrochar nanocomposites were produced by hydrothermal carbonization of cellulose at 200 °C for 2–24 h in the absence and the presence of montmorillonite. The roles of montmorillonite in the formation of hydrochar were explored in detail. Results showed that montmorillonite acted as a catalyst, an adsorbent, and an inorganic template for hydrochar formation. The formation process of montmorillonite-hydrochar nanocomposite can be divided into two stages: first, the hydrolysis of cellulose yielding degraded liquid products (e.g. glucose, fructose, and organic acids); second, the formed liquid products were adsorbed by montmorillonite, which catalyzed condensation and aromatization to form hydrochar particles on the surface of montmorillonite.
Keyword Cellulose
Clay minerals
Hydrothermal carbonization
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
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