应用化学 ›› 1997, Vol. 0 ›› Issue (3): 49-52.

• 研究论文 • 上一篇    下一篇

K2CO3活化煤矸石制备活性炭吸附剂

邓晓虎, 乐英红, 高滋   

  1. 复旦大学化学系, 上海 200433
  • 收稿日期:1996-07-25 修回日期:1997-04-08 出版日期:1997-06-10 发布日期:1997-06-10

Preparation of Active Carbon Adsorbents from Elutrilithe via K2CO3 Activation

Deng Xiaohu, Yue Yinghong, Gao Zi   

  1. Department of Chemistry, Fudan University, Shanghai 200433
  • Received:1996-07-25 Revised:1997-04-08 Published:1997-06-10 Online:1997-06-10

摘要: 用K2CO3化学活化煤矸石制备适用于废水处理的活性炭吸附剂。考察了活化条件对产物的比表面、孔体积及灰分的影响。增加了前处理和后处理步骤以改善产物的性能。最佳条件下获得的活性炭吸附剂BET比表面达1236m2/g,孔体积0.679cm3/g.所制得的吸附剂表面是疏水性的,对水溶液中的酚类污染物有良好的吸附性能。

关键词: 煤矸石, 活性炭, 化学活化, 制备, 废水处理

Abstract: Active carbon adsorbents suitable for wastewater treatments were prepared from natural elutrilithe by chemical activation with K2CO3. The effect of the activation conditions on the specific area, porosity and ash content of the adsorbent was investigated. The qualities of the adsorbent are further improved via additional simple prior and post treatments. An ideal active carbon adsorbent with a BET specific area of 1236 m2/g and a total pore volume of 0.679 cm3/g was obtained. The adsorbents are hydrophobic in nature and exhibit large adsorption capacities for various phenolic compounds from aqueous solutions.

Key words: elutrilithe, active carbon, chemical activation, preparation, wastewater treatment