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本文利用ESCA/AES/SAM对2,4-二硝基苯肼(1)及2,4,6-三硝基甲苯(2)的活性炭表面吸附机理进行了研究。结果表明,在吸附过程的同时发生一系列的电荷转移还原过程。配合ATR红外光谱以及理论分析,文中指出:随着硝基数目的增多,活性炭表面上形成的电荷转移配合物的稳定性亦相应提高;吸附过程中化学吸附的比重随之增多,从而造成了活性炭再生的困难。文中还提出了多硝基芳烃的吸附模型。
In this paper, the surface adsorption mechanism of 2,4-dinitrophenylhydrazine (1) and 2,4,6-trinitrotoluene (2) on activated carbon was studied by ESCA / AES / SAM. The results show that a series of charge transfer reduction processes occur simultaneously with the adsorption process. With ATR infrared spectroscopy and theoretical analysis, the article pointed out: With the increase of the number of nitro groups, the stability of the charge-transfer complexes formed on the surface of activated carbon is also increased accordingly; the proportion of chemisorption increases with the adsorption process, resulting in the regeneration of activated carbon Difficulties. In this paper, the adsorption model of polynitroaromatics is also proposed.