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MOF衍生多孔碳和活性炭吸附2号油的行为研究
Study on adsorption behavior of No. 2 oil by MOF-derived porous carbon and activated carbon
【摘要】 系统研究了MOF衍生多孔碳与粉末活性炭对2号油的吸附特性,详细考察了吸附时间、吸附剂投加量、温度及pH等因素对其吸附性能的影响,并深入探讨了吸附机理。研究结果表明:相较于粉末活性炭,MOF衍生多孔碳表现出更优的pH耐受性;在最佳条件下,MOF衍生多孔碳与粉末活性炭对2号油的平衡吸附量分别为224.95 mg/g和194.86 mg/g。吸附动力学分析显示,二者均符合准二级动力学模型,相关系数R2>0.999。热力学研究表明,MOF衍生多孔碳对2号油的吸附为放热过程,且以物理吸附为主。
【Abstract】 The adsorption characteristics of MOF-derived porous carbon and powdered activated carbon for No.2 oil were systematically investigated. The effects of adsorption time, adsorbent dosage, temperature, and pH on their adsorption performance were examined in detail, and the adsorption mechanisms were thoroughly discussed. Results demonstrate that MOF-derived porous carbon exhibits superior pH tolerance compared to powdered activated carbon. Under optimal conditions, the equilibrium adsorption capacities of MOF-derived porous carbon and powdered activated carbon for No.2 oil reach 224.95 mg/g and 194.86 mg/g, respectively. Adsorption kinetic analysis reveals that both follow the pseudosecond-order kinetic model with correlation coefficients R~2> 0.999. Thermodynamic studies indicate that the adsorption of No.2 oil by MOF-derived porous carbon is an exothermic process dominated by physical adsorption.
【Key words】 No.2 oil; MOF-derived porous carbon; activated carbon; adsorption; kinetics; thermodynamics;
- 【文献出处】 黄金 ,Gold , 编辑部邮箱 ,2025年11期
- 【分类号】X703;O647.3
- 【下载频次】61