School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, People's Republic of China; School of Chemistry and Chemical Engineering, Qiannan Normal College for Nationalities, 558000 Duyun, People's Republic of China; State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources, Wengfu Group Co. Ltd., 550016 Guiyang, People's Republic of China.
School of Chemistry and Chemical Engineering, Qiannan Normal College for Nationalities, 558000 Duyun, People's Republic of China.
Int J Biol Macromol. 2021 May 15;179:519-531. doi: 10.1016/j.ijbiomac.2021.03.024. Epub 2021 Mar 6.
Using chitosan as the carbon source, F127 as the template, and sodium tripolyphosphate as cross-linking agent, a hydrogen bond and ionic bond double-driven mesoporous carbon material was prepared via the sol-hydrothermal method and its formation mechanism was discussed. According to the results from FTIR, Raman, XPS, physical adsorption analyzer, SEM, TEM, and TG-IR, the mesoporous carbon material was formed under the synergistic effect of hydrogen bond and ionic bond has a mesoporous volume of 0.44 cm/g, a BET surface area of 262 m/g, and possesses the ideal unimodal distribution around 2.20 nm. The mesopores are originated from the degradation of hydrophobic segment PPO of F127, and the micropores come from the gases CO, CO, NH, CH, tetraethylene glycol dimethyl ether, and 2,6-diisopropylphenyl isocyanate produced during the degradation of prepolymers. The maximum adsorption capacity of this mesoporous carbon for tannic acid (Sips model) at 30 °C is 70.4 mg/g.
以壳聚糖为碳源，F127 为模板，三聚磷酸钠为交联剂，采用溶胶-水热法制备了氢键和离子键双驱动的介孔碳材料，并探讨了其形成机理。根据傅里叶变换红外光谱（FTIR）、拉曼光谱（Raman）、X 射线光电子能谱（XPS）、物理吸附分析仪、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和热重-红外联用（TG-IR）的结果，氢键和离子键协同作用下形成了介孔碳材料，其具有 0.44 cm/g 的介孔体积、262 m²/g 的 BET 比表面积，且呈现出理想的 2.20nm 左右的单峰分布。介孔来源于 F127 中疏水性 PPO 段的降解，微孔则来源于预聚物降解过程中产生的 CO、CO、NH、CH、四乙二醇二甲醚和 2,6-二异丙基苯基异氰酸酯等气体。该介孔碳材料在 30°C 下对没食子酸（Sips 模型）的最大吸附容量为 70.4mg/g。
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