基于超亲水纳米通道的智能可控微反应器

Intelligent Controllable Microreactor Based on Superhydrophilic Nanochannel

对阳极氧化铝(Anodic Alumina Oxide,AAO)多孔膜进行低温空气等离子体处理得到超亲水纳米通道.在此基础上引入油溶性铁磁流体(Ferrofluid),通过调节外磁场的方向和强度构建出智能可控微反应器.该智能微反应器具有多梯度门控、高电流门控比、长期循环稳定性的特点.将其分别用于均相和非均相反应中,采用荧光分光光度计和扫描电子显微镜等手段进行表征.结果表明,不同门控状态下反应产物具有不同的产量和结构,在微反应器的可控反应方面具有良好的应用前景.

The anodic alumina oxide(AAO)porous membrane was treated with low-temperature air plasma to obtain superhydrophilic nanochannels.An oil-soluble ferrofluid was introduced on the AAO membrane,and an intelligent and controllable microreactor was constructed by adjusting the direction and strength of the external magnetic field.The intelligent microreactor has the characteristics of multilevel gating,high currentgating ratio,and long-term cycle stability.It was used in homogeneous and heterogeneous reactions and char⁃acterized by fluorescence spectrophotometer and scanning electron microscope.The results showed that the re⁃action products have different yields and structures under different gated states,and have good application prospects in the controllable reaction of microreactors.