Emulsion is a disperse system with two immiscible liquids,which demonstrates wide applications in diverse industries.Emulsifcation technology has advanced well with the development of microfluidic process.Compared to ...Emulsion is a disperse system with two immiscible liquids,which demonstrates wide applications in diverse industries.Emulsifcation technology has advanced well with the development of microfluidic process.Compared to conventional methods,the micro-fluidics-based process can produce controllable droplet size and distribution.The droplet formation or breakup is the result of combined effects resulting from interfacial tension,viscous,and inertial forces as well as the forces generated due to hydrodynamic pressure and extermal stimuli.In the current study,typical microfluidic systems,including microchannel array,T-shape,flow-focusing,co-flowing,and membrane systems,are reviewed and the corresponding mechanisms,fow regimes,and main parameters are compared and summarized.展开更多
In this work,we set out to elucidate the light-harvesting properties of various random and ordered photocatalyst supports(PSs)with different macropore sizes.To accomplish this,we propose two studies of increasing rele...In this work,we set out to elucidate the light-harvesting properties of various random and ordered photocatalyst supports(PSs)with different macropore sizes.To accomplish this,we propose two studies of increasing relevance,enabled by computed tomography(CT)reconstructions and raytracing COMSOL Multiphysics simulations:(a)a 360-degree light release study approximating a PS situated within a compound parabolic concentrator(CPC)or cylindrical LED reactor with open ends;and(b)the same systemas before but with closed ends.The ordered geometry is of interest,as it can be 3D printed at scale with a tailored morphology and porosity,and it can potentially be refined using machine learning models to optimize its light-harvesting properties.As will be shown,the local volumetric light absorption(LVLA)data suggests that an ordered PSwith amore open pore interior and a smaller pore exterior would begin to approach the more isophotonic light-harvesting properties of random PSs.展开更多
基金This work was supported by the National Key Research and Development Program of China(Grant Nos.2017YFB-1103002 and 2018YFB0604304)Federal Ministry for Economic Affairs and Energy,Germany(No.03ET1093C)+1 种基金Fundamental Research Funds for the Central Universities,China(No.2017MS011)the National Natural Science Foundation of China(Grant No.51821004).
文摘Emulsion is a disperse system with two immiscible liquids,which demonstrates wide applications in diverse industries.Emulsifcation technology has advanced well with the development of microfluidic process.Compared to conventional methods,the micro-fluidics-based process can produce controllable droplet size and distribution.The droplet formation or breakup is the result of combined effects resulting from interfacial tension,viscous,and inertial forces as well as the forces generated due to hydrodynamic pressure and extermal stimuli.In the current study,typical microfluidic systems,including microchannel array,T-shape,flow-focusing,co-flowing,and membrane systems,are reviewed and the corresponding mechanisms,fow regimes,and main parameters are compared and summarized.
文摘In this work,we set out to elucidate the light-harvesting properties of various random and ordered photocatalyst supports(PSs)with different macropore sizes.To accomplish this,we propose two studies of increasing relevance,enabled by computed tomography(CT)reconstructions and raytracing COMSOL Multiphysics simulations:(a)a 360-degree light release study approximating a PS situated within a compound parabolic concentrator(CPC)or cylindrical LED reactor with open ends;and(b)the same systemas before but with closed ends.The ordered geometry is of interest,as it can be 3D printed at scale with a tailored morphology and porosity,and it can potentially be refined using machine learning models to optimize its light-harvesting properties.As will be shown,the local volumetric light absorption(LVLA)data suggests that an ordered PSwith amore open pore interior and a smaller pore exterior would begin to approach the more isophotonic light-harvesting properties of random PSs.
