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研究了具有高比表面积稻壳基多孔炭(简称RHC)对人体内代谢产物肌酐(简称CR)的吸附,将采用氢氧化钠活化稻壳制备的四种多孔炭和二种商业活性炭对肌酐的吸附进行了对比,同时考察了盐酸、硝酸和双氧水对多孔炭进行表面处理及其经过高温处理(800℃)后对肌酐的吸附.结果表明稻壳基多孔炭对肌酐的吸附超过商业炭,经过表面处理后多孔炭的吸附能力增强,无氧化性盐酸处理后的多孔炭对肌酐的吸附量最大,氧化性最强的硝酸处理后的多孔炭对肌酐的吸附量最小,双氧水居中,高温处理后的多孔炭吸附能力有所降低.实验证实了多孔炭对CR的吸附符合Freundlich方程.
The adsorption of creatinine (CR), a metabolite of human body, with high specific surface area of rice husk-based porous carbon (RHC) was studied. Four kinds of porous carbon and two kinds of commercial activated carbon activated by sodium hydroxide activated rice husk were studied. The adsorption of creatinine on the surface of porous carbon was investigated by hydrochloric acid, nitric acid and hydrogen peroxide, and the adsorption of creatinine on the porous carbon was investigated.According to the results, After the surface treatment, the adsorption capacity of porous carbon was enhanced. The porous carbon adsorbed by non-oxidizing hydrochloric acid had the highest adsorption capacity of creatinine. The porous nitrocellulose treated with nitric acid with the strongest oxidation capacity had the least adsorption capacity for creatinine. Of the porous carbon adsorption capacity decreased.Experiments have confirmed that porous carbon adsorption of CR in line with the Freundlich equation.