常温合成硫掺杂微孔碳及其二氧化碳的吸附性能

常温下以间苯三酚和3-甲醛苯并噻吩作为原料，一步法合成了含硫酚醛树脂。在氩气保护下碳化，成功制备出了硫掺杂多孔碳（S-PC）。并利用扫描电镜（SEM）、X射线光电子能谱（XPS）、X射线衍射（XRD）和氮气吸附-脱附仪对材料进行了形貌、结构和性能的表征。实验结果表明，所得样品具有较高比表面积和大量的微孔，经过调控，可以使制备的硫掺杂多孔碳的BET比表面积达到997 m²·g^-1，并使其微孔孔体积达到0.44 cm³·g^-1。得益于较高的比表面积以及其富含微孔的特性，当材料应用于二氧化碳吸附时，具有较高的CO₂吸附量，在273和298 K时分别高达5.13，3.22 mmol·g^-1，并具有良好的选择性。

Synthesis of Sulfur Doped Porous Carbon at Room Temperature for CO2 Adsorption

Sulfur doped porous carbon (S-PC) were obtained by direct carbonization of sulfur containing phenolic resins, which were synthesized through one step reaction between phloroglucinol and benzob]thiophenc-3-carboxaldehyde under room temperature. The material was characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and N₂ sorption-desorption experiments. The obtained porous carbons possess high surface area with abundant of micropores. What''s more, ultra-high surface area of 997 m²·g^-1 along with ultra-large micropore volume of 0.44 cm³·g^-1 could be obtained after carefully regulation the concentration of reactants. Owing to these fascinating characters like high surface area and rich of micropores, both high CO₂ uptake capacity (5.13 and 3.22 mmol·g^-1 for 273 and 298 K respectively) and high selectivity was obtained, which indicating it''s promising sorbents for CO₂.