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| 桐酸硅酸钙的制备、表征及其在含没食子酸废水处理中的应用 |
| Preparation and characterization of eleostearic calcium silicate and its application in the treatment of wastewater containing gallic acid |
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| DOI： |
| 中文关键词: 桐酸 硅酸钙 没食子酸 废水处理 |
| 英文关键词:eleostearic acid calcium silicate gallic acid wastewater treatment |
| 基金项目:国家重点研发计划（2016YFD0600806）；湖南省教育厅重点项目（17A174） |
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| 中文摘要: |
| 以桐酸和硅酸钙为原料，通过化学包覆法制备了具有处理废水中酚类污染物潜力的桐酸硅酸钙（ES），并对ES结构进行了表征。另外，以ES为吸附剂，考察了ES对含没食子酸废水的处理效果。结果表明：所制备的ES表面疏松，具有疏水性，对没食子酸有良好的吸附去除效果；在料液比1∶ 20、吸附时间4 h和吸附pH 11的最优条件下，对没食子酸的吸附率可达92.26%。 |
| 英文摘要: |
| Eleostearic acid and calcium silicate were used as materials, and the hydrophobic eleostearic calcium silicate (ES) with the potential to treat phenols pollutants in wastewater was prepared by chemical coating method, and the structure of ES was characterized. Furthermore, ES was used as the adsorbent, and the adsorption effect of ES on gallic acid in wastewater was investigated. The results showed that the surface of ES prepared was loose and hydrophobic, and it had a strong adsorption capacity on gallic acid in wastewater. The optimal conditions of treating the wastewater with ES were obtained as follows: ratio of material to liquid 1∶ 20, adsorption time 4 h, pH 11. Under the optimal conditions, the adsorption rate of ES on gallic acid in wastewater was 92.26%. |
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