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首页> 外文期刊>Journal of industrial and engineering chemistry >Fabrication of mesoporous carbons coated monolith via evaporative induced self-assembly approach: Effect of solvent and acid concentration on pore architecture
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Fabrication of mesoporous carbons coated monolith via evaporative induced self-assembly approach: Effect of solvent and acid concentration on pore architecture

机译:通过蒸发诱导自组装方法制备介孔碳包覆的整料:溶剂和酸浓度对孔结构的影响

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摘要

Carbon coating onto monolith through soft-template approach have been accomplished by means of evaporative induced self-assembly (EISA). Variation in acid and alcohol content on monolith's surface properties was studied, while (3-carotene was used as a modelled adsorbate. The pore architecture of adsorbent samples was analysed through corresponding surface chemistry, N2 sorption isotherm, pore size distribution (PSD) plot, Brunauer-Emmett-Teller (BET), Barett-Joyner-Halenda (BJH) model and scanning electron microscopy (SEM). SEM images displayed a well-covered interconnected worm-like framework of carbonaceous materials over monolith surface. Surface chemistry studies revealed dominance of acid functionalities over adsorbent samples surface, while basic functionalities remain unaltered. Carbon loading increased with increase in acid concentration, while it decreased with increase in alcohol content. The adsorbent surface area decreased with increase in acid concentration and alcohol content. The 3-carotene adsorption capacities on synthesized samples varied between 179.60 (optimum) and 112.56 mg/g (lower), respectively. Optimum P-carotene adsorption was observed on samples MCO.2 and MC5 with alcohol and acid content of 5 mL and 0.2 mL, respectively.
机译:通过软模板方法通过蒸发诱导自组装(EISA)将碳涂覆到整料上。研究了酸和酒精含量对整料表面性能的变化,同时以(3-胡萝卜素为模型吸附物。通过相应的表面化学,N2吸附等温线,孔径分布(PSD)图分析了吸附剂样品的孔结构。 Brunauer-Emmett-Teller(BET),Barett-Joyner-Halenda(BJH)模型和扫描电子显微镜(SEM)。SEM图像显示了在整块表面上覆盖良好的相互连接的蠕虫状碳质材料构架,表面化学研究显示出优势吸附剂样品表面的酸官能度保持不变,而碳载量随酸浓度的增加而增加,而随酒精含量的增加而降低;吸附剂表面积随酸浓度和酒精含量的增加而减小; 3-胡萝卜素合成样品的吸附容量分别在179.60(最佳)和112.56 mg / g(下部)之间变化。在乙醇和酸含量分别为5 mL和0.2 mL的MCO.2和MC5样品上观察到最佳的P-胡萝卜素吸附。

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