活化竹炭对水相中对硝基苯酚的吸附条件及再生研究

Research on Adsorption Capability for p-Nitrophenol and Regeneration of the Bamboo-carbon after Activation

采用NaOH溶液浸泡+微波加热的方法对竹炭进行活化,结果表明:竹炭的比表面积和对对硝基苯酚的吸附能力均有明显的提高。该法有望成为竹炭活化的有效手段。此外,研究了竹炭对溶液中对硝基苯酚吸附条件与规律,结果表明:竹炭对水相中对硝基苯酚的吸附符合一般的吸附规律。微波加热技术被用于吸附对硝基苯酚后竹炭的再生,结果发现:竹炭的吸附能力恢复到原来的90%和96%。

The bamboo-charcoal were pretreated with microwave and NaOH solution before they were used. The results showed that the specific surface area and the adsorption capacilies for p-Nitrophenol were heightened observably. The technology can become an effectual means of activation of the bamboo-charcoal. Adsorption condition and law of the Bamboo-Carbon for p-Nitrophenol were studied in water solution. The results showed that adsorption of the Bamboo-Carbon for p-Nitrophenol accord with currently adsorption law. The method of microwave were used in regeneration of the bamboo-charcoal after adsorption of p-Nitrophenol, the result showed that the percentages of regeneration reach upwards of 90 % and 96 %.