改性玉米芯对二苯胺的生物吸附研究

Adsorption of dianiline by modified corncob

本文研究了高锰酸钾改性的玉米芯对水中二苯胺的吸附情况,从吸附时间、吸附剂用量、温度、酸碱度及浓度方面考察了对吸附量的影响。结果表明:高锰酸钾改性的玉米芯对二苯胺溶液的吸附性较强,且随着吸附剂用量增加,吸附量增大;初始浓度增大,吸附量升高;升温对反应不利;酸性条件下有利于吸附。

The corncob modified with KMnO4 was used to adsorb dianiline in water.The influences of contact time,adsorbent dosage, temperature, solution p H, and adsorbent concentration were investigated. The results show that The corncob modified with KMnO4 has strong adsorption on dianiline solution, and the adsorption capacity increases with the increase of the amount of adsorbent. adsorption quantity became larger as increasing of initial diphenylamine concentration.The rise of temperature is not favorable for the adsorption process;however,acidic condition is propitious to the adsorption.