Activated carbon nanofibers (ACNFs) incorporated with four different types of metal oxides; magnesium oxide (MgO), manganese dioxide (MnO₂), zinc oxide (ZnO), and calcium oxide (CaO) were successfully prepared via a simple electrospinning and pyrolysis process. Optimum electrospinning and pyrolysis parameters were performed to obtain porous ACNFs composites for CO₂ capture. The porous and textural characteristics of the resultant ACNFs composites were performed using N₂ adsorption isotherms at 77 K, while the features and morphologies were observed using TEM and FE-SEM. The EDX and Raman analysis were used to determine and analyse the elemental composition in the ACNFs. It was observed that ACNFs incorporated MgO (ACNF2) exhibited the largest surface area (413 m²/g) and the highest micropore volume (0.1777 cm³/g) as compared to pristine ACNF (ACNF1) and other ACNFs composites. ACNF2 also possessed the smallest fiber diameter of 357.8 ± 16.7 nm as compared to other samples. The successful incorporation of all metal oxides in electrospun fibers were proven by EDX analysis. All resultant ACNFs exhibited D- and G-peaks in Raman spectra indicating the carbon-based materials structure. As expected, the ACNF2 attained the highest CO₂ adsorption of 60 cm³/g at 298 K as compared to other ACNFs samples which is correspond to N₂ adsorption capacity. The CO₂ adsorption/desorption isotherms of the best composite sample (ACNF2) was measured at three different temperatures (273, 298, and 318 K) at 1 bar through a volumetric adsorption process and this result was compared to ACNF1. It shown that the CO₂ adsorption capacity is inversely proportional to the increasing temperature in which as the adsorption temperature increased, the adsorbed amounts of CO₂ decreased. These results indicated that the incorporation of MgO into ACNFs shows the best improvement in their physicochemical properties for enhanced adsorption performance of CO₂ under practical conditions.

掺有四种不同类型金属氧化物的活性炭纳米纤维（ACNF）；通过简单的静电纺丝和热解工艺成功地制备了氧化镁（MgO），二​​氧化锰（MnO ₂），氧化锌（ZnO）和氧化钙（CaO）。进行了最佳的静电纺丝和热解参数以获得用于CO ₂捕获的多孔ACNFs复合材料。使用N ₂进行所得ACNFs复合材料的多孔和织构特性在77 K时吸附等温线，而使用TEM和FE-SEM观察其特征和形态。EDX和拉曼分析用于确定和分析ACNF中的元素组成。观察到，与原始ACNF（ACNF1）和其他ACNFs复合材料相比，掺入MgO的ACNFs（ACNF2）表现出最大的表面积（413 m ² / g）和最大的微孔体积（0.1777 cm ³ / g）。与其他样品相比，ACNF2的最小纤维直径为357.8±16.7 nm。通过EDX分析证明了所有金属氧化物成功地混入到电纺纤维中。所有所得的ACNF在拉曼光谱中均表现出D峰和G峰，表明碳基材料的结构。不出所料，ACNF2获得了最高的CO ₂与其他ACNFs样品相比，在298 K下的60 cm ³ / g吸附量相当于N ₂吸附量。最佳复合样品（ACNF2）在1 bar的三个不同温度（273、298和318 K）上通过体积吸附过程测量了CO ₂吸附/解吸等温线，并将此结果与ACNF1进行了比较。结果表明，CO _2的吸附能力与温度的升高成反比，其中随着吸附温度的升高，CO ₂的吸附量降低。这些结果表明，向ACNFs中掺入MgO显示出其理化性能的最佳改善，以增强CO _2的吸附性能。 在实际条件下。