Abstract New kind of adsorbent was produced from Trichosanthes kirilowii Maxim shell. The KOH activation technology for preparation of Trichosanthes kirilowii Maxim shell activated carbon (TKMCK) was optimized. Using methylene blue as the sample adsorbate, the adsorption behavior was systematically investigated in terms of the activation agent and temperature, the adsorption temperature and time, the initial adsorbate pH and concentration, as well as the dosage of adsorbent. Surface physical morphology of the TKMCK prepared was observed by scanning electron microscopy (SEM), while the functional groups were determined with Fourier transform infrared (FTIR) spectra. Kinetic studies indicated that the adsorption process was more consistent with the pseudo-second-order kinetic. Both Langmuir and Freundlich isotherms were employed to fit the adsorption data at equilibrium, with the former giving a maximum adsorption capacity of 793.65 mg/g at 323 K. BET surface area of as-prepared TKMCK was 657.78 m2/g.

中文翻译：

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栲胶Maxim壳活性炭吸附亚甲基蓝的平衡、动力学和热力学研究

摘要 以Trichosanthes kirilowi​​i Maxim 壳为原料制备了新型吸附剂。优化了KOH活化制备瓜蒌果壳活性炭(TKMCK)的工艺。以亚甲基蓝为样品吸附物，从活化剂和温度、吸附温度和时间、初始吸附物pH和浓度以及吸附剂用量等方面系统地研究了吸附行为。通过扫描电子显微镜（SEM）观察制备的TKMCK的表面物理形态，而通过傅里叶变换红外（FTIR）光谱确定官能团。动力学研究表明吸附过程更符合准二级动力学。