正己醇在改性活性炭上的脱附活化能

Activation Energy for Desorption of n-Hexanol on Modified Activated Carbons

制备了Ag+ 活性炭、Cu2 + 活性炭、Fe3+ 活性炭、活性炭、Ba2 + 活性炭和Ca2 + 活性炭 6种活性炭 .推导了脱附活化能的估算模型 ,并利用程序升温脱附技术测定了正己醇在这 6种活性炭上的脱附活化能 .结果表明 ,正己醇在Ag+ 活性炭、Cu2 + 活性炭和Fe3+ 活性炭上的脱附活化能高于其在活性炭上的脱附活化能 ,而它在Ca2 + 活性炭和Ba2 + 活性炭上的脱附活化能低于它在活性炭上的脱附活化能 .

In this paper,six kinds of activated carbons such as Ag + activated carbon,Cu 2+ activated carbon,Fe 3+ _activated carbon,activated carbon,Ba 2+ _activated carbon and Ca 2+ _activated carbon were prepared.The model for estimating activated energy of desorption was established.Temperature_Programmed Desorption(TPD) experiments were conducted to measure the TPD curves of n_hexanol on the activated carbons and then estimate the activation energy for desorption of n_hexanol on the activated carbons.The results showed that the activation energy for desorption of n_hexanol on the Ag +_activated carbon,the Cu 2+ _activated carbon and the Fe 3+ _activated carbon were higher than those of n_hexanol on the activated carbon,the Ca 2+ _activated carbon and the Ba 2+ _activated carbon.