咪唑啉表面活性剂的制备及吸附性能
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摘要
采用潜溶剂法合成了咪唑啉表面活性剂(命名为IM-14),核磁共振氢谱证实为目标产物;通过芘荧光探针法探究其胶束化性质,测得临界胶束浓度为9. 3μmol/L。选择氧化铝纳米颗粒(Al_2O_3NPs)作为固体模型,研究了咪唑啉表面活性剂在纳米颗粒上的吸附动力学和吸附热力学,确定了吸附方式是多层吸附;通过改变环境温度和引入竞争吸附确立了吸附主要通过氢键作用、π-π堆积和疏水作用进行。
The imidazoline surfactant which has the advantages of high charge density,high corrosion inhibition efficiency,contains an imidazoline ring as the polar head group,and the alkyl chain as a non-polar group. In this study,imidazoline quaternary ammonium salt( named IM-14) which was used as the research object was synthesized by the latent solvent method. The results were confirmed by ~1H-NMR spectroscopy. By investigating its micellization properties,critical micelle concentration( cmc) was 9. 3 μmol/L. The adsorption kinetics and thermodynamics of imidazoline surfactant on alumina nanoparticles( Al_2O_3 NPs) were studied. It was determined that this process is a multi-layer chemical adsorption model. Finally,by changing the ambient temperature and introducing competitive adsorption,it was established that the adsorption proceeds mainly through hydrogen bonding,π-π stacking and hydrophobic interactions.
The imidazoline surfactant which has the advantages of high charge density,high corrosion inhibition efficiency,contains an imidazoline ring as the polar head group,and the alkyl chain as a non-polar group. In this study,imidazoline quaternary ammonium salt( named IM-14) which was used as the research object was synthesized by the latent solvent method. The results were confirmed by ~1H-NMR spectroscopy. By investigating its micellization properties,critical micelle concentration( cmc) was 9. 3 μmol/L. The adsorption kinetics and thermodynamics of imidazoline surfactant on alumina nanoparticles( Al_2O_3 NPs) were studied. It was determined that this process is a multi-layer chemical adsorption model. Finally,by changing the ambient temperature and introducing competitive adsorption,it was established that the adsorption proceeds mainly through hydrogen bonding,π-π stacking and hydrophobic interactions.
引文
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[10]爦olpan D,Duran S,Saraydin D. et al. Adsorption of methyl violet in aqueous solutions by poly(acrylamide-co-acrylic acid)hydrogel[J]. Radiation Physics and Chemistry,2003,66:117-127.
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[13]白炳莲,韦珏,王海涛,等.用红外光谱技术研究氢键的键合方式[J].化学通报,2013,76(2):167-170.
[14] Liu Y,Qiao L J,Xiang Y P. et al. Adsorption behavior of low concentration imidazolium based ionic liquid surfactant on silica nanoparticles[J]. Langmuir,2016,32:2582-2590.
[15]邓永红,肖亮,冯鑫佳,等.尿素对碱木质素溶液行为和吸附特征的影响[J].华南理工大学学报(自然科学版),2013,41(1):95-99.
[2] Matijaz F,Jennifer J. Application of corrosion inhibitors for steels in acidic media for the oil and gas industry review[J]. Corrosion Science,2014,86(3):17-41.
[3]张漫路,赵景茂.缓蚀剂协同效应与协同机理的研究进展[J].中国腐蚀与防护学报,2016,36(1):1-10.
[4]刘刚,马杰,陈雷,等.湿气管道缓蚀剂失效评价试验系统研发[J].实验室研究与探索,2014,33(10):82-87.
[5]欧阳平,蒋豪,张贤明,等.含氮杂环添加剂抗腐防锈性能的研究进展[J].化学研究与应用,2016,28(1):1-7.
[6]孙飞,傅晓萍,李本高.咪唑啉缓蚀剂的研究与应用[J].石油炼制与化工,2014,45(6):96-102.
[7] Zhu Y,Free M L,Yi G. The effects of surfactant concentration,adsorption aggregation,and solution conditions on steel corrosion inhibition and associated modeling in aqueous media[J]. Corrosion Science,2016,102:233-250.
[8] Zhou T,Ao M Q,Xu G Y,et al. Interactions of bovine serum albumin with cationic imidazolium and quaternary ammonium gemini surfactants:Effects of surfactant architecture[J]. Journal of Colloid Interface Science,2013,389:175-181.
[9]周亭,杨世超,张志庆,等.芘荧光探针法测定表面活性剂聚集体参数实验研究[J].实验技术与管理,2018,35(1):53-56.
[10]爦olpan D,Duran S,Saraydin D. et al. Adsorption of methyl violet in aqueous solutions by poly(acrylamide-co-acrylic acid)hydrogel[J]. Radiation Physics and Chemistry,2003,66:117-127.
[11] Freundlich H M F. Over the adsorption in solution[J]. Journal of Physical Chemistry C,1906,57:385-470.
[12]刘芳,姜国飞,赵朝成,等.石墨烯吸附处理甲苯气体在环境综合大实验中的应用[J].实验室研究与探索,2017,36(8):5-9.
[13]白炳莲,韦珏,王海涛,等.用红外光谱技术研究氢键的键合方式[J].化学通报,2013,76(2):167-170.
[14] Liu Y,Qiao L J,Xiang Y P. et al. Adsorption behavior of low concentration imidazolium based ionic liquid surfactant on silica nanoparticles[J]. Langmuir,2016,32:2582-2590.
[15]邓永红,肖亮,冯鑫佳,等.尿素对碱木质素溶液行为和吸附特征的影响[J].华南理工大学学报(自然科学版),2013,41(1):95-99.