摘要
研究了XAD-4大孔树脂对水相中邻氨基苯酚的吸附特性。研究内容包括接触时间、pH、吸附剂质量、吸附温度对吸附的影响。树脂能有效地除去水相中的邻氨基苯酚,在pH=3.2～5.2的范围内树脂对邻氨基苯酚均有较大的吸附,其最佳酸度为pH=4.0,吸附率可达97.3%。研究表明Langmuir等温吸附模型能较好地描述吸附过程。用1.5～2.0 mol/L HCl对吸附后的树脂进行再生试验,脱附率可达91.2%。
The adsorption properties of the XAD-4 resin for O-aminophenol was studied in aqueous solution.Some parameters including contact time,pH,mass of adsorbent,and adsorption temperature were investigated.Results showed that XAD-4 resin could effectively remove O-aminophenol from aqueous solution.The resin showed high adsorption ability for O-aminophenol at a wide pH range（pH=3.2～5.2）.The optima adsorption acidity of the resin for O-aminophenol is pH 4.0 in HAc-NaAc medium,and adsorption rate is 97.3%.The adsorption behavior of the resin for O-aminophenol obeys the Langmuir isotherm model.After the resin of adsorption is regenerated with1.5～2.0 mol/L HCl,the percentages of regeneration can be raised to 91.2 %.
出处
《丽水学院学报》
2011年第2期21-23,28,共4页
Journal of Lishui University
