| 硝酸改性对活性炭吸附性能的影响 |
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| 引用本文： | 吴开金,官新宇,官九红,陈涵,林冠烽.硝酸改性对活性炭吸附性能的影响[J].福建林业科技,2009,36(4). |
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| 作者姓名： | 吴开金 官新宇 官九红 陈涵 林冠烽 |
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| 作者单位： | 1. 福建省林业科学研究院,福建,福州,350012
2. 邵武市林业科技推广中心,福建,邵武,354000 |
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| 基金项目： | 福建省自然科学基金项目，国家林业局南方山地用材林培育重点实验室资助 |
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| 摘 要： | 采用硝酸对活性炭进行改性,探讨硝酸浓度、改性温度和时间对活性炭吸附性能的影响。结果表明,硝酸改性过程中活性炭的孔隙结构被破坏的同时也不断生成新的孔隙,随着温度的升高和处理时间的延长,改性活性炭的吸附性能总体呈先升后降的趋势。在本实验条件下硝酸改性活性炭的较佳工艺为:温度20℃,硝酸质量分数20%,处理时间16 h;制得的改性活性炭的亚甲基蓝吸附值、碘吸附值、苯酚吸附值和吸苯率分别为165 mg.g-1、762 mg.g-1、187.2 mg.g-1和42.6%。
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| 关 键 词： | 活性炭 硝酸 改性 吸附性能 |
Influence of Nitric Acid Modification on the Adsorption Properties of Activated Carbon |
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| WU Kai-jin,GUAN xin-yu,GUAN Jiu-hong,CHEN Han,LIN Guan-feng.Influence of Nitric Acid Modification on the Adsorption Properties of Activated Carbon[J].Journal of Fujian Forestry Science and Technology,2009,36(4). |
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| Authors: | WU Kai-jin GUAN xin-yu GUAN Jiu-hong CHEN Han LIN Guan-feng |
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| Institution: | WU Kai-jin1,GUAN Xin-yu1,GUAN Jiu-hong2,CHEN Han1,LIN Guan-feng1(1.Fujian Academy of Forestry,Fuzhou 350012,Fujian,China,2.The Popularizing Centre of Forestry Science and Technology of Shaowu City,Shaowu 354000,China) |
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| Abstract: | The activated carbon was modified by nitric acid,and the effect of nitric acid concentrate,modification temperature and time on the adsorption properties of activated carbon were discussed.The results showed that the pore of activated carbon were destroyed and producted simultaneously in the modification process.As a whole,the adsorption properties of activated carbon increased in a maximum point,then decreased with the increase of modification temperature and time.The optimized experimental conditions were... |
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| Keywords: | activated carbon nitric acid modification adsorption |
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