Activation of Hollow Carbon Nano Sphere by Sodium Amino and the VOCs Adsorption Properties
WANG Hongning1, ZHU Ting1, QING Jiang3, HUANG Li1, HUANG Weiqiu2, MA Tengzhou3, CHEN Ruoyu1
1. Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
2. Jiangsu Key Laboratory of Oil and Gas Storage and Transport Technology, Changzhou University, Changzhou 213016, China;
3. Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Customs, Shanghai 200135, China
Abstract：To improve the adsorption performance of hollow carbon nano sphere (HCNS) for volatile organic compounds (VOCs), the synthesized HCNSs were activated by sodium amide (NaNH2) to increase the surface area and microporous of activated HCNSs. The effects of the activator amount and activation temperature on the performance of activated HCNSs were experimentally investigated. The results showed that the performance of the obtained activated HCNS (HCNS-3-500) was optimal when the mass ratio of NaNH2 to HCNs was 3 and the activation temperature was 500 ℃. The specific surface area and pore volume of HCNS-3-500 were the largest, 1 589 m2/g and 1.96 cm3/g respectively. The static adsorption capacities of HCNS-3-500 for n-hexane, toluene and 92# gasoline were 2.70, 1.93 and 1.36 g/g respectively, and the dynamic adsorption capacities of single-component n-hexane and toluene were 2.61 g/g and 1.85 g/g respectively. The performances of activated HCNSs were much better than that of commercial adsorbents AC and SG.
WANG Hongning,ZHU Ting,QING Jiang et al. Activation of Hollow Carbon Nano Sphere by Sodium Amino and the VOCs Adsorption Properties[J]. Chemical Reaction Engineering and Technology, 2022, 38(1): 68-76.
