连续在线原位ATR-FTIR技术测定介孔CuAl2O4对黄药的吸附

以丁胺和正十二醇为混合模板剂，采用共沉淀法制备了介孔纳米CuAl2O4．用X射线粉末衍射（XRD）、傅里叶变换红外（FTIR）光谱、N2吸附-脱附对产物的结构进行了表征．采用连续在线原位衰减全反射傅里叶变换红外（ATR-FTIR）光谱技术研究了水溶液中丁基和辛基黄药在介孔CuAl2O4表面的吸附．随着吸附时间的延长．1200和1040cm。两处黄药特征峰的高度逐渐增加，根据1200cm-1处C—O—C伸缩振动峰的变化来评价黄药在CuAl2O4表面的吸附动力学过程．结果表明，介孔纳米CuAl2O4对黄药有很强的吸附能力，在100min的时间内，CuAl2O4样品对丁基和辛基黄药的吸附量分别达到了...

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Bibliographic Details
Published in物理化学学报 Vol. 29; no. 2; pp. 371 - 376
Main Author 葛东来 范迎菊 尹龙 孙中溪
Format Journal Article
LanguageChinese
Published 济南大学化学化工学院, 济南 250022 2013
Subjects
CuAl2O4
介孔
原位吸附
在线
衰减全反射傅里叶变换红外光谱
黄药
介孔
CuAl2O4
Xanthate
黄药
Attenuated total reflection Fourier transform infrared spectroscopy
In situ adsorption
Mesopore
在线
Online
原位吸附
衰减全反射傅里叶变换红外光谱
Online AccessGet full text
ISSN1000-6818
DOI10.3866/PKU.WHXB201211146

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Summary:以丁胺和正十二醇为混合模板剂，采用共沉淀法制备了介孔纳米CuAl2O4．用X射线粉末衍射（XRD）、傅里叶变换红外（FTIR）光谱、N2吸附-脱附对产物的结构进行了表征．采用连续在线原位衰减全反射傅里叶变换红外（ATR-FTIR）光谱技术研究了水溶液中丁基和辛基黄药在介孔CuAl2O4表面的吸附．随着吸附时间的延长．1200和1040cm。两处黄药特征峰的高度逐渐增加，根据1200cm-1处C—O—C伸缩振动峰的变化来评价黄药在CuAl2O4表面的吸附动力学过程．结果表明，介孔纳米CuAl2O4对黄药有很强的吸附能力，在100min的时间内，CuAl2O4样品对丁基和辛基黄药的吸附量分别达到了236和300mg·g-1，且属于化学吸附．对实验数据进行理论模拟，发现吸附过程更接近于拟二级吸附动力学方程．
Bibliography:In situ adsorption; Attenuated total reflection Fourier transform infrared spectroscopy Online; Mesopore; CuAl2O4; Xanthate
11-1892/06
In this study, mesoporous nano CuAl2O4 was synthesized through a coprecipitation method using simple mixed templates consisting of butylamine and dodecanol. The sample was characterized by X-ray diffraction （XRD）, Fourier transform infrared spectroscopy （FTIR）, and nitrogen adsorption- desorption techniques. The absorption of butyl and octyl xanthate from aqueous solution onto the synthesized mesoporous CuAl2O4 solid surfaces was studied by a continuous, online, in situ attenuated total reflection Fourier transform infrared spectroscopy （ATR-FTIR） technique. The CuAl2O4 membrane used in the adsorption experiments was prepared on a germanium internal reflection element using the chemical bath deposition method. During the adsorption process, the characteristic peak height of xanthate at 1200 and 1040 cm-1 emerged and gradually increased. By monitoring changes in the peak height a
ISSN:1000-6818
DOI:10.3866/PKU.WHXB201211146