| 焙烧对粉煤灰孔径分布及吸附性能的影响 |
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| 引用本文： | 陈俊涛,丁淑芳,白春华,徐岩,王会平. 焙烧对粉煤灰孔径分布及吸附性能的影响[J]. 黑龙江科技学院学报, 2011, 21(5): 357-359 |
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| 作者姓名： | 陈俊涛 丁淑芳 白春华 徐岩 王会平 |
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| 作者单位： | 1. 黑龙江科技学院资源与环境工程学院,哈尔滨,150027
2. 辽宁工程技术大学矿业学院,辽宁阜新,123000 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 为研究粉煤灰的活化性能,在不同温度下焙烧粉煤灰,采用氮吸附法测定焙烧前后粉煤灰的比表面积、孔体积及孔径分布,并进行粉煤灰对Rhodamine-B水溶液的吸附实验。结果表明：粉煤灰的比表面积、孔体积及介孔数量随焙烧温度升高而逐渐增大,700℃时达到最大值,此后随焙烧温度升高而减小;焙烧后粉煤灰对水溶液中的Rhodamine-B分子的吸附性能显著提高。该结果为粉煤灰吸附机理研究提供了有益参考。
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| 关 键 词： | 粉煤灰 焙烧 孔径分布 吸附性能 |
Effect of roasting on pore distribution and adsorption performance of fly ash |
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| CHEN Juntao,DING Shufang,BAI Chunhua,XU Yan,WANG Huiping. Effect of roasting on pore distribution and adsorption performance of fly ash[J]. Journal of Heilongjiang Institute of Science and Technology, 2011, 21(5): 357-359 |
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| Authors: | CHEN Juntao DING Shufang BAI Chunhua XU Yan WANG Huiping |
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| Affiliation: | 1 (1.College of Resources & Environmental Engineering,Heilongjiang Institute of Science & Technology,Harbin 150027,China; 2.College of Mining Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | Aimed at studying the activation performance of fly ash,this paper is concerned with roasting fly ash by different temperature,measuring specific surface area,pore volume and pore size distribution of fly ash roasted before and after roasting by N2 adsorption method,and testing fly ash adsorbing Rhodamine-B.Results show that fly ash experiences a gradual increase in specific surface area,pore volume and amount of middle pore,due to increasing roasting temperature,and shows a maximum at 700 ℃,and a decrease along with increasing roasting temperature.Roasted fly ash has a significantly improved adsorption performance in the Rhodamine-B of water solution.The result provides a useful reference for adsorption mechanism of fly ash. |
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| Keywords: | fly ash roasting pore distribution adsorption performance |
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