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本文用减秩因子分析法(RAFA)处理电解催化降解苯胺过程中的动力学谱-光谱组成的两维数据.分析结果表明,当以反应速率常数为优化对象,以消去反应物的信息作为减秩手段时,RAFA可以获得两个最优解,分别对应于两步速率常数(分别为0.0437和和0.0175min-1).在获得动力学参数的前提下,利用最小二乘回归法可解出包括中间体在内的各组分的吸收光谱.结果还发现苯胺降解过程中有一种表观中间体存在,降解过程符合两步一级反应模型.
In this paper, two-dimensional data of kinetic-spectral composition of electrolytic degradation of aniline by electrolysis catalyzed by reduction factor analysis (RAFA) was studied. The analysis results show that RAFA can obtain two optimal solutions, which correspond to the two-step rate constants (0.0437 and 0 respectively) when taking the reaction rate constant as the optimization object and eliminating the reactant information as the reduction means. .0175min-1). Under the premise of obtaining the kinetic parameters, the absorption spectrum of each component including the intermediate can be solved by the least square regression method. The results also found that there is an apparent intermediate in the degradation process of aniline, and the degradation process accords with the two-step first-order reaction model.