Nanobubbles are nanoscale gas-containing cavities on the liquid-solid surfaces (surface nanobubbles) or in the bulk aqueous solutions (bulk nanobubbles). These novel nanoscale bubbles exhibit a lot of unusual properties (e.g. extreme stability, abnormal contact angle) which challenge our understanding of the bubble behaviors at nanoscales.
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The field of nanofluidics explores the transport of fluids and ionic species at the nanometric scales. Interfaces often paly a crucial role at nanoscales. We are intersted in a phenomenon called phoretic transport, which represents the motion of colloids/molecules in fluids and the fluid flow near solid surfaces driven by some interfacial forces due to a electric field, a concentration gradient or a temperature gradient (i.e. electro-/diffusio-/thermo-phoresis and electro-/diffusio-/thermo-osmosis). The phoretic transport processes offer important advantages in fields as diverse as micro-/nano-fluidics, colloid science and separations because of the controllable processes may be achieved through surface structure and chemistry.
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Nano-assembly describes the processes by which nanoscale individual units come together to form organized structures, mediated by individual particle interactions or globally applied external forces such as electric/magnetic fields or fluid flows. Understanding self-assembly allows us to fabricate materials through a bottom–up approach, which provide a precise control on the structures to achieve desired properties.
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研究成果在Phys. Rev. Lett., J. Chem. Phys., Nat. Commun., ACS Nano, Adv. Mater., Adv. Funct. Mater., J. Membr. Sci.等期刊发表SCI论文40余篇，详见Google Scholar和Researchgate.
We have published 40+ papers in well-known international journals including Phys. Rev. Lett., J. Chem. Phys., Nat. Commun., ACS Nano, Adv. Mater., Adv. Funct. Mater., J. Membr. Sci., etc. See the full list at Google Scholar and Researchgate.
With LDFT calculations, for the first time, we proved that the contact line pinning effect on heterogeous substrates can lead to thermodymaically stable surface nanobubbles.
J. Chem. Phys. 2013, 138 (1), 014706.
With LDFT calculations, we showed that the contact angles of pinned surface nanobubble are independent of substrate chemistry. Pinning force were introduced.
J. Chem. Phys. 2014, 140 (5), 054705.
With MD simulations, we confirmed that stabilizing surface nanobubbles require both the contact line pinning and some proper supersaturations.
J. Chem. Phys. 2014, 141 (13), 134702.
With MD simulations, we found that microscopic Marangoni flows cannot be predicted based on pressure gradients, while the chemical potential gradient can.
Phys. Rev. Lett. 2017, 119 (22), 224502.
With LD simulations, we concluded that the effective charge on the fibers dictates the agglomeration process and that the final geometry of the agglomerated fibers is marked by crossed nodes.
Cell Reports Phys. Sci. 2020, 1 (8), 100148.
With DPD simulations, we concluded that the induced electric dipole in EPD assembly of nanorods is dominated by the polarizability of the solution phase electric double layer.
Adv. Funct. Mater. 2021, 31 (6), 2006753.
With MD simulations, we found that the diffusio-osmotic effect arising from the charged nanochannels can lead to a low and nearly constant methanol permeability in the COF membranes.
J. Memb. Sci. 2022, 645, 120186.
With LD simulations, we revealed that the interplay between nanoparticle (NP) faceting, ligand shell structure, and substrate–NP interactions contronl the structure of assembled superlattices.
Adv. Mater. 2022, 34 (20), 2109093.
With MD simulations, we proposed several mechanisms associated with the microscopic electrostatic interfactions to explain the efficient ion exlusion observed in charged COF membranes with large nanochannels.
ACS Nano 2022, 16 (8), 11781–11791.
With LD simulations, we developed a simple model system that can fully characterize the thermodynamic forces that drive chiral assembly behaviours in membranes formed by small rod-like colloids under a broad range of particle shapes and interactions.
Nanoscale 2022, 14, 16837–16844.
