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| Study on Preparation of Fructose-based Carbon Microspheres and Their Adsorption Properties |
| Received:August 11, 2021 |
| DOI：10.11981/j.issn.1000-6842.2022.01.01 |
| Key Words:fructose;carbon microsphere;hydrothermal carbonization;soft template;adsorption |
| Fund Project:国家重点研发计划“木质纤维高分子新材料制造技术研究”（2017YFD0601004）。 |
| Author Name | Affiliation | Postcode | | LIU Yuanyuan* | Beijing Key Laboratory of Lignocellulosic Chemistry， Beijing Forestry University， Beijing， 100083 | 100083 | | LIU Xin | Department of Chemical Engineering， Tsinghua University， Beijing， 100084 | 100084 | | WANG Meng | China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102 | 100102 | | HUANG Jianbo | Beijing Key Laboratory of Lignocellulosic Chemistry， Beijing Forestry University， Beijing， 100083 | 100083 | | XU Feng | Beijing Key Laboratory of Lignocellulosic Chemistry， Beijing Forestry University， Beijing， 100083 | 100083 | | ZHANG Xueming | Beijing Key Laboratory of Lignocellulosic Chemistry， Beijing Forestry University， Beijing， 100083 | 100083 |
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| Abstract: |
| Fructose-based carbon microspheres were prepared through hydrothermal carbonization using fructose as a carbon precursor and Pluronic P123 as the soft template. The morphology of fructose-based microsphere and optimal preparation conditions were investigated by using scanning electron microscopy （SEM） and transmission electron microscopy （TEM）， and the adsorption performance and affecting factors of fructose-based microspheres on methylene blue （MB） were studied as well. The results showed that the fructose-based microspheres possessed uniform size distribution and smooth surface after hydrothermal carbonization of 6 h. Moreover， the highest adsorption capacity of fructose-based microspheres on MB reached up to 91.43 mg/g under the optimal adsorption conditions， and it maintained 76.9% of its maximum adsorption capacity after 5 cycles of use， indicating excellent reusability. Furthermore， it was confirmed that its adsorption kinetics was fitted with pseudo-second-order， and the adsorption isotherm was more conformed to the Langmuir model， which implied that MB was adsorbed on the surface of fructose-based carbon microspheres in a monomolecular manner and there was no interaction between MB molecules. |
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