Help nanorods “stand” on microsubstrate to form hierarchical ZnO nanorod-nanosheet architectures

Bioinspired design of a photoresponsive superhydrophobic/oleophilic surface with underwater superoleophobic efficacy

“…the presence of water molecules bonded to the surfaces would provide a repulsive force against oil immersion) and the second on asymmetric microtextures (which drive the anisotropic motion of uid on the surfaces). 5,19,41,59 In our approach, we show that a hydrophilic surface is not necessary to obtain underwater superoleophobicity, but an adequate micro/nano-structured texture is required that can trap air in or water in the pockets created by the rough area. Tuning the surface wettability is of great interest for both scientic research and practical applications.…”

“…Nanostructures were then introduced on the PDMS microstructured surface and further increased the surface roughness, by growing ZnO nanorods on the primary PDMS microposts using a simple low temperature hydrothermal method in aqueous solution for several hours. 41 To increase the oleophobic property of the surface in air, ((tridecauoro-1,1,2,2-tetrahydrooctyl)-1-trichlorosilane, TFTS) which has lower surface tension than that of oil, was deposited on the surfaces, and experiments with droplets on hydrophobic and both oleophilic and oleophobic surfaces in air were performed. It is known that uorine is the most effective approach for lowering the surface free energy in view of the fact that the closest hexagonal packing of -CF 3 groups on the surface would give the lowest surface energy of the materials.…”

Matrix phase induced boosting photoactive performance of ZnO nanowire turf‐coated Bi2O3 plate composites

“…On the basis of the unique optical and electrical properties of 1D and 2D semiconductors, integration of 1D semiconductors on a 2D semiconductor matrix with a suitable band alignment is another promising approach to increasing the number of heterojunction sites, thereby improving photoelectric efficiency and activity. 8 Recent progress in 1D CdS nanowire-2D BiVO 4 nanosheet heterostructures indicates that these 1D/2D interfacial heterostructures can facilitate charge separation and transport between 1D CdS and 2D BiVO 4 . The markedly enhanced photocatalytic activity of CdS-BiVO 4 1D/2D is attributed to the introduction of 2D BiVO 4 , which serves as a favorable receptor for the efficient separation of photogenerated charge carriers excited from 1D CdS NWs.…”

“…In contrast, selective growth of 1D semiconductors on 2D semiconductors to form heterogeneous structures has been reported less than 2D–1D helical structures. On the basis of the unique optical and electrical properties of 1D and 2D semiconductors, integration of 1D semiconductors on a 2D semiconductor matrix with a suitable band alignment is another promising approach to increasing the number of heterojunction sites, thereby improving photoelectric efficiency and activity 8 . Recent progress in 1D CdS nanowire–2D BiVO 4 nanosheet heterostructures indicates that these 1D/2D interfacial heterostructures can facilitate charge separation and transport between 1D CdS and 2D BiVO 4 .…”

Fast synthesis of Cu‐doped ZnO nanosheets at ambient condition

“…In the past few years, the synthesis, characterization, and application of two dimensional (2D) nanostructure ZnO have become the focus of intensive researches. 2D nanostructural ZnO, such as nanosheets or nanowalls, is expected to have wide‐ranging application possibilities, such as ultraviolet lasers , photocatalysis , solar cells , anode materials for Li‐ion batteries and build‐blocks in modern nanoelectronics .…”