| 刘源源,刘昕,王萌,黄剑波,许凤,张学铭.果糖基碳微球的制备及其吸附性能研究[J].中国造纸学报,2022,37(1):1-7 |
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| 果糖基碳微球的制备及其吸附性能研究 |
| Study on Preparation of Fructose-based Carbon Microspheres and Their Adsorption Properties |
| 投稿时间：2021-08-11 |
| DOI：10.11981/j.issn.1000-6842.2022.01.01 |
| 中文关键词: 果糖 碳微球 水热碳化 软模板法 吸附 |
| Key Words:fructose carbon microsphere hydrothermal carbonization soft template adsorption |
| 基金项目: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）。 |
| 作者 | 单位 | 邮编 | | 刘源源* | 北京林业大学林木生物质资源与化学北京市重点实验室,北京,100083 | 100083 | | 刘昕 | 清华大学化学工程系,北京,100084 | 100084 | | 王萌 | 中国制浆造纸研究院有限公司,北京,100102 | 100102 | | 黄剑波 | 北京林业大学林木生物质资源与化学北京市重点实验室,北京,100083 | 100083 | | 许凤 | 北京林业大学林木生物质资源与化学北京市重点实验室,北京,100083 | 100083 | | 张学铭 | 北京林业大学林木生物质资源与化学北京市重点实验室,北京,100083 | 100083 |
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| 中文摘要: |
| 以果糖为碳前驱体、聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物（Pluronic P123）为模板剂，采用软模板水热碳化法制备果糖碳微球。利用扫描电子显微镜（SEM）、透射电子显微镜（TEM）对其形貌进行表征，探究果糖碳微球最佳制备条件，并对其吸附亚甲基蓝的性能及影响因素进行了研究。结果表明，水热碳化时间为6 h时，果糖碳微球尺寸分布均匀，表面光滑。在最佳吸附条件下，果糖碳微球对亚甲基蓝的吸附量可达91.43 mg/g，经5次吸附循环后其吸附量仍为初始吸附量的76.9%，具有良好的循环使用性能；其吸附过程符合准二级吸附动力学，Langmuir等温吸附模型对其吸附过程的拟合更准确，表明亚甲基蓝以单分子层方式吸附于果糖碳微球表面，亚甲基蓝各分子间无相互作用。 |
| 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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