本研究在热解炭表面接枝间苯二胺和烯丙基磺酸钠制得两性热解炭，采用静态吸附实验和吸附动力学实验对水中3-羟基甲苯的吸附行为进行研究，并用吸附热力学和吸附动力学来探讨用两性热解炭吸附3-羟基苯甲酸的机理。结果表明：3-羟基苯甲酸用两性热解炭来吸附表现出良好的吸附性能。通过对模型的拟合便于分析吸附剂的吸附特征，采用Langmuir方程，该过程属于化学吸附，热力学参数计算结果表明，吸附3-羟基苯甲酸的焓变(？H)为17.13 kJ/mol，熵变(？S)为73.47 J/(mol？K)。
In this study, amphoteric pyrocarbon was prepared by grafting m-phenylenediamine and sodium allyl sulfonate on the surface of pyrocarbon. The adsorption behavior of 3-hydroxybenzoic acid in water was studied through static adsorption experiment and adsorption kinetics experiment. The adsorption mechanism of 3-hydroxybenzoic acid by amphoteric pyrocarbon was discussed by adsorption thermodynamics and adsorption kinetics. The adsorption performance of 3-hydroxybenzoic acid by amphoteric pyrolytic carbon is good. Langmuir equation can be used to better fit the adsorption of 3-hydroxybenzoic acid in water by amphoteric pyrocarbon, which belongs to chemical adsorption. The calculation results of thermodynamic parameters show that the enthalpy change (Δh) of adsorption of 3-hydroxybenzoic acid is 17.13 kJ/mol, and the entropy change (Δs) is 73.47 J/(mol K).
Duan, P., Jin, B., Xu, Y., et al. (2015) Co-Pyrolysis of Microalgae and Waste Rubber Tire in Supercritical Ethanol. Chemical Engineering Journal, 269, 262-271. https://doi.org/10.1016/j.cej.2015.01.108
Ivan, M., Matteo, O., Manuela, A., et al. (2014) Full Factorial Experimental Design to Study the Devulcanization of Ground Tire Rubber in Supercritical Carbon Dioxide. The Journal of Supercritical Fluids, 92, 249- 256.
https://doi.org/10.1016/j.supflu.2014.06.001
[5]
Andrea, U., Barbara, S., Emma, C., et al. (2013) Carbon from Microwave Assisted Pyrolysis of Waste Tires. Journal of Analytical and Applied Pyrolysis, 104, 396-404. https://doi.org/10.1016/j.jaap.2013.06.006
