摘要：

以浸渍法制备了系列Fe²⁺/活性炭材料,X射线衍射、X射线光电子能谱和扫描电子电镜分析结果表明,形貌未变的活性炭载体负载了铁离子。将所制材料应用于类Fenton体系降解废水中苯酚的实验研究,结果表明,在焙烧温度为500 ℃,铁离子负载量为0.49 mmol/g条件下制备的Fe²⁺/活性炭材料的催化活性最高,其与双氧水组成的类Fenton体系在60 min内对苯酚的降解率为83%。该材料在循环使用时稳定性好,经5次使用后其活性仅下降8%。

关键词: 苯酚, 活性炭, 催化活性, 类Fenton体系

Abstract:

Series of Fe²⁺/activated carbon materials have been prepared by immersion method. The analytical results through X-ray diffraction,X-ray photoelectron spectroscopy and scanning electron microscope indicate that the ac-tivated carbon whose appearance was not changed has been loaded with Fe ions. The prepared Fe²⁺/activated carbon is applied to the experimental research on Fenton-like system for the degradation of phenol in wastewater. The expe-rimental results show that the catalytic activity of the prepared Fe²⁺/activated carbon materials is the best,when calcining temperature is 500 ℃,and the carrying capacity of iron ions 0.49 mmol/g. The degradation rate of phenol is 83%,when the Fenton-like system is combined with hydrogen peroxide for no more than 60 min. The materials have excellent stability while being used circularly. After being used for 5 times,the loss of activity is only 8%.

Key words: phenol, activated carbon, catalytic activity, Fenton-like system

中图分类号: 

• X703