Tuning hydrochar properties for enhanced mesopore development in activated carbon by hydrothermal carbonization
Tuning hydrochar properties for enhanced mesopore development in activated carbon by hydrothermal carbonization
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DOI：
10.1016/j.micromeso.2014.10.036
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发表时间：
2015-02-01
影响因子：
5.2
通讯作者：
Srinivasan, Madapusi P.
中科院分区：
文献类型：
--
作者：
Jain, Akshay;Balasubramanian, Rajasekhar;Srinivasan, Madapusi P.
水热预处理参数的简单调整被示出导致从生物质（椰子壳）获得的活性炭的中孔面积的显著增强。ZnCl 2含量和温度被用作参数，以提高水热预处理的有效性。随着处理温度的逐步升高，ZnCl 2扩散的增强被其溶解度降低所缓和。通过确定ZnCl 2含量和温度的有利工作范围以促进中孔形成，与用于形成中孔活性炭的常规浸泡工艺相比，实现了中孔面积增加高达80%。增强中孔面积证实了高的吸附容量的酚红和苯酚的混合物高达351和264 mg/g，分别。(C)2014爱思唯尔公司All rights reserved.
Simple tuning of hydrothermal pre-treatment parameters is shown to result in significant enhancement in the mesopore area of activated carbon obtained from biomass (coconut shell). ZnCl2 content and temperature were used as parameters to improve the effectiveness of hydrothermal pre-treatment. With progressive increase in the treatment temperature, the enhancement of ZnCl2 diffusion was tempered by its reduced solubility. By identifying favorable working ranges for ZnCl2 content and temperature to promote mesopore formation, up to 80% increase in mesopore area is achieved in comparison to the conventional soaking process for formation of mesoporous activated carbon. The enhancement in mesopore area was substantiated by high adsorption capacities for a mixture of phenol red and phenol up to 351 and 264 mg/g, respectively. (C) 2014 Elsevier Inc. All rights reserved.