In this work, nanocasting technique (phenol-formaldehyde resin as a carbon source) followed by chemical activation (sodium thiosulphate) have been used for the synthesis of S-doped carbon monolith. The morphological and surface properties were explored by using various characterization techniques. The surface area of 510 m² g${}^{-1}$was found for the nanocasted carbon monolith synthesized under carbonization temperature of 900 °C. Sulphur content of the S-doped monolith (PFC-S) was found to be 2.89 wt%. Relevant for the real applications in the power plants, the fixed bed CO₂ adsorption–desorption system was taken in use to examine adsorption studies of the monoliths. Maximum CO${}_2$uptake (1.25 mmol g⁻¹) was found for the PFC-S monolith at 30 °C due to the various basic oxygen and sulphur functionalities present on its surface. Also, the monoliths have excellent capability to regenerate several times for the adsorption–desorption process. In the kinetic studies, the fractional order model was fitted best as compared to the other models, whereas, Temkin model showed good fitting in the isotherm studies.

在这项工作中，纳米浇铸技术（酚醛树脂作为碳源）然后化学活化（硫代硫酸钠）已被用于合成S掺杂的碳单块。通过使用各种表征技术来探索形态和表面性质。表面积510 m ² g${}^{-\mathrm{1个}}$对于在900℃的碳化温度下合成的纳米浇铸的碳单块，发现了碳纳米管。发现掺杂S的整料（PFC-S）的硫含量为2.89重量％。与发电厂的实际应用相关，固定床CO ₂吸附-解吸系统用于检查整料的吸附研究。最大CO${}_2$由于在其表面存在各种碱性氧和硫官能团，因此在30°C下发现PFC-S整料的吸收（1.25 mmol g ^-1）。同样，整料具有出色的再生能力，可进行多次吸附-解吸过程。在动力学研究中，分数阶模型与其他模型相比拟合得最好，而Temkin模型在等温线研究中显示出很好的拟合性。