Preparation and Functions of Hybrid Membranes with Rings of Ag NPs Anchored at the Edges of Highly Ordered Honeycomb‐Patterned Pores

Abstract

We report a new, simple strategy to apply honeycomb films for the patterning of colloidal particles. By combination of a "bottom-up" breath figure method and the electrochemical properties of the honeycomb films of ferrocenyl-based oligomers, highly ordered hybrid membranes coated with ring-like patterning of 0D- and 1D-Ag nanoparticles (NPs) have been fabricated. One interesting phenomenon is that the nucleation and adsorption of Ag dots occurred preferentially at the edges of the micropores. The hybrid membranes exhibited richly electrochemical activities towards reduction of iodate and enhanced effectively catalytic reduction of organic dyes. We believe that this method can be used to decorate and/or assemble functional metal NPs such as Au, Pd, and Cu on honeycomb-patterned materials for the further applications of photonics, sensors, and catalysis.

Photoluminescent Honeycomb Structures from Polyoxometalates and an Imidazolium‐Based Ionic Liquid Bearing a π‐Conjugated Moiety and a Branched Aliphatic Chain

“…After running CV in an aqueous solution containing 0.1 mol L −1 KNO 3 and 0.5 mmol L −1 HAuCl 4 for 800 s, it was found that Au nanoclusters had been successfully deposited in the pores (Figure D). Compared to similar studies reported previously, the deposition of Au nanoclusters demonstrated here is better, that is, they were found to only reside inside the pores. This improvement could be ascribed to the better electrochemical responsiveness of the honeycomb film, which is consistent with our discussions mentioned above.…”

“…[4] The preparationo fh oneycombs tructures has been expanded from solid substrates to the air/waterinterface and the templates have been extended from droplets of watert ot hose formed by nonaqueous solvents or microemulsions.I nfluences of various factors on the morphology of the honeycombs tructures, such as humidity,g as flow,t emperature, concentration of the materials, type of substrate, and organic solvent,h ave been fully investigated. Up to now,v arious candidates have been explored to form honeycomb structures.B esides polymers with diversec ompositions and structures, [12][13][14][15] av ariety of materials with attractive properties have also been tried, including carbon nanotubes( CNTs), [16,17] grapheneo xide (GO), [18] proteins, [19] small organic molecules, [20][21][22] and inorganic-organic hybrids. [10,11] Ab ig advantage of the honeycombs tructures fabricated by the BF methodi st hat the functions of the films can be facilely tuned by engineeringt he starting materials.…”

“…[10,11] Ab ig advantage of the honeycombs tructures fabricated by the BF methodi st hat the functions of the films can be facilely tuned by engineeringt he starting materials. Up to now,v arious candidates have been explored to form honeycomb structures.B esides polymers with diversec ompositions and structures, [12][13][14][15] av ariety of materials with attractive properties have also been tried, including carbon nanotubes( CNTs), [16,17] grapheneo xide (GO), [18] proteins, [19] small organic molecules, [20][21][22] and inorganic-organic hybrids. [23][24][25][26][27] The films containing honeycombs tructures with varying sizes and morphologies have been successfully used as molecular sieves, [28] sensors, [29] superhydrophobic coatings, [30] antibacterial surfaces, [31] cell culture reservoirs, [32] and templates for electrodeposition of Au or Ag particlesfor surface-enhanced Ramanscattering (SERS).…”

Fabrication of Pore-Selective Metal-Nanoparticle-Functionalized Honeycomb Films via the Breath Figure Accompanied by In Situ Reduction

“…Generally, the main approaches for the metal modifications of honeycomb films are performed after the BF process [12,13]. Some techniques have been developed for the metal modification of honeycomb films, such as chemical deposition [14], electrodeposition [11,15], electroless plating [16,17], vapor deposition [18], and physical adsorption [19]. Although these techniques were successfully applied in the fabrication of metallized honeycomb films, they involve elaborate procedures, post-modifications, and/or sophisticated instrumentation.…”

Fabrication of Durable Honeycomb‐Patterned Films of Poly(ether sulfone)s via Breath Figures

“…Honeycomb‐patterned porous films have attracted tremendous interest owing to their wide applications in sensors, catalysts, electronic devices, biology, membrane separation, and so on. The breath figure (BF) method, firstly reported by Francois and co‐workers is a facile and versatile approach to fabricate such structures.…”