摘要
采用共沉淀法制备Mg/Al为3.0的镁铝水滑石,经500℃煅烧后得到镁铝复合氧化物,并用十二烷基苯磺酸钠对复合氧化物进行改性,利用X射线衍射(XRD)和红外光谱(IR)对改性后的产物进行了表征,研究了改性后水滑石对苯酚绿的的吸附性能。结果表明,反应温度为35℃,投加量为5g/L,pH值为1.2时脱色效率最高可达97.81%。
Mg- Al- hydrotalcite with Mg/A1 molar ratio of 3 was synthesized by coprecipitation. The calcined hydrotalcite was obtained by calcination at 500 ℃ and then the calcined product was modified with dodecylbenzene sulfonic acid sodium salt（SDBS） to yield the modification product. The modified products were characterized by X ray diffraction （XRD） and infrared spectroscopy （IR）. Also, the the adsorption of phenol green by modified hydrotaleite were studied. The results showed that in the solution of pH 1.2, absorbent dosage of 5g/L, the degradation efficiency of phenol green was 97.81% at 35 ℃.
出处
《化工时刊》
CAS
2018年第1期1-4,共4页
Chemical Industry Times
关键词
镁铝水滑石
十二烷基苯磺酸钠
脱色效率
hydrotalcite dodecylbenzene sulfonic acid sodium salt deeolorizing efficiency
