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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| Published in | 物理化学学报 Vol. 29; no. 2; pp. 371 - 376 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
济南大学化学化工学院, 济南 250022
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201211146 |
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| Abstract | 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． |
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| AbstractList | 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． O647; 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1040 cm-1两处黄药特征峰的高度逐渐增加,根据1200 cm-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100 min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300 mg·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. |
| Abstract_FL | 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 gradual y increased. By monitoring changes in the peak height at 1200 cm-1, which was assigned to the stretching vibration caused by C-O-C of the adsorbed xanthate molecules, the adsorption kinetics were studied. The adsorption results show that mesoporous CuAl2O4 has a high chemisorption capacity for xanthate, which reaches 236 and 300 mg·g-1 for butyl and octyl xanthate, respectively, within 100 min. The adsorption kinetics can be described by a pseudo-second-order reaction model. |
| Author | 葛东来 范迎菊 尹龙 孙中溪 |
| AuthorAffiliation | 济南大学化学化工学院,济南250022 |
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| DOI | 10.3866/PKU.WHXB201211146 |
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| DocumentTitleAlternate | Determination of the Adsorption of Xanthate on Mesoporous CuAl2O4 Using a Continuous Online In situ ATR-FTIR Technology |
| DocumentTitle_FL | Determination of the Adsorption of Xanthate on Mesoporous CuAl2O4 Using a Continuous Online In situ ATR-FTIR Technology |
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| Keywords | 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 |
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| Notes | 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 |
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| PublicationTitle | 物理化学学报 |
| PublicationTitleAlternate | Acta Physico-Chimica Sinica |
| PublicationTitle_FL | Acta Physico-Chimica Sinica |
| PublicationYear | 2013 |
| Publisher | 济南大学化学化工学院, 济南 250022 |
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| SubjectTerms | 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 |
| Title | 连续在线原位ATR-FTIR技术测定介孔CuAl2O4对黄药的吸附 |
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