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.
Active carbon adsorbents suitable for wastewater treatments were prepared from natural elutrilithe by chemical activation with K 2CO 3. 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 m 2/g and a total pore volume of 0 679 cm 3/g was obtained. The adsorbents are hydrophobic in nature and exhibit large adsorption capacities for various phenolic compounds from aqueous solutions.
出处
《应用化学》
CAS
CSCD
北大核心
1997年第3期49-52,共4页
Chinese Journal of Applied Chemistry
关键词
煤矸石
活性炭
废水处理
吸附剂
碳酸钾
酚类
elutrilithe,active carbon,chemical activation,preparation,wastewater treatment