Self-assembly of functional nanoscale materials

Abstract

Abstract

Synthesis of the ZnTPyP/WO3nanorod-on-nanorod heterojunction direct Z-scheme with spatial charge separation ability for enhanced photocatalytic hydrogen generation

“…Compared with inorganic photocatalysts, photoactive organic nanostructures are promising photocatalysts because of their easily tunable structure and function by molecular design. [35][36][37] Porphyrins are a class of macromolecular heterocyclic organic compounds, [38][39][40] and they exhibit good optical and photosensitizing (as light-harvesting antennas) properties owing to their highly conjugated molecular structure. 41,42 Thus, porphyrins are widely used as photosensitizers in organic catalysis, solar cells, photocatalysis, nanodevices, and other fields.…”

Missing Links between the Structures and Optical Properties of Porphyrin Assemblies

“…Molecular species spontaneously assembling into highly ordered structures through noncovalent interactions is an important physical process responsible for the formation of numerous natural and synthetic functional materials. − Many π-conjugate macrocyclic molecules including perylene diimides, , block copolymers, porphyrins, and so on can spontaneously assemble into nano- to microscale particles with controlled morphology and size through methods including ionic self-assembly, reprecipitation, coordination-/sonication-/surfactant-assisted self-assembly, organic gelations, vaporization–condensation–recrystallization-induced assembly . The aggregation of the π-conjugated organic compounds promotes the delocalization of the electrons at the ground and/or excited electronic states, inducing drastic differences in the optical spectra of the fully dissolved monomers and their assemblies.…”

From Nanoparticle Heteroclusters to Filament Networks by Self-Assembly at the Water–Oil Interface of Reverse Microemulsions

“…The templating effect for the self-assembly of nanoparticles is based on their controlled confinement, ranging from modified surfaces to solid scaffolds or colloidal dispersions. Redirection of nanoparticles to a liquid–liquid interface is possible because of the reduction of interfacial energy. − This also induces the so-called Pickering effect for emulsion stabilization and the formation of nanoparticle superstructures such as colloidosomes. − In an analogous way, interactions of nanoparticles with other surface-active agents can form self-organized dispersions, which will act as a soft template to mediate self-assembly into superstructures upon solvent evaporation. ,, Furthermore, interfacial self-assembly of different nanoparticles can lead to bimetallic or multifunctional nanocomposites by combining the properties of each type of nanoparticle. , Hereby, nanoparticles of two different materials can assemble into a binary nanoparticle superlattice. , Therefore, it is of special relevance to have a better understanding of the properties and phenomena behind these processes for a better control of the nanoparticle interactions.…”

“…15−18 In an analogous way, interactions of nanoparticles with other surface-active agents can form self-organized dispersions, which will act as a soft template to mediate selfassembly into superstructures upon solvent evaporation. 10,19,20 Furthermore, interfacial self-assembly of different nanoparticles can lead to bimetallic or multifunctional nanocomposites by combining the properties of each type of nanoparticle. 12,21 Hereby, nanoparticles of two different materials can assemble into a binary nanoparticle superlattice.…”