UiO-MOFs are based on zirconium cluster and carboxylic acid linkers. They have excellent chemical thermal stability, tolerance to linkers of different length functionalities, making them good candidates for a broad range applications. However, difficulties processing the polycrystalline powder MOFs limit their application. Here, we report first time synthesis UiO-66 in presence well-defined pol...

In this study, a high-performance organic solvent nanofiltration (OSN) membrane is engineered via nanoscale aminated graphene quantum dots (GQD_NH2)-mediated interfacial polymerization. The GQD_NH2, featuring favorable amine monomers, can atomically regulate the diffusion rate at interface, yielding nanofilms with controllable thickness (decreasing from 200 to 100 nm). Furthermore, zero-dimensi...

This paper demonstrates an acetylene gas sensor based on an Ag-decorated tin dioxide/reduced graphene oxide (Ag-SnO₂/rGO) nanocomposite film, prepared by layer-by-layer (LbL) self-assembly technology. The as-prepared Ag-SnO₂/rGO nanocomposite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Raman spectrum. The acetylene...

A method to prepare novel organic-inorganic hydrophobic nanocomposite films was proposed by a site-specific polymerization process. The inorganic part, the core of the nanocomposite, is a ternary SiO₂-Al₂O₃-TiO₂ nanoparticles, which is grafted with methacryloxy propyl trimethoxyl silane (KH570), and wrapped by fluoride and siloxane polymers. The synthesized samples are characterized by transmis...

A robust and sustainable thin-film composite membrane, using green raw materials on a highly porous, electrospun biodegradable support, was developed for molecular sieving.

Abstract: Different thickness of Cu2S thin films were prepared by vacuum evaporation under a pressure of 10-6 torr at an evaporation rate of 3Å /sec. Cu2S has direct band gap energy and indirect band gap energy at 1.2eV and 1.8 eV respectively. This paper presents the analysis of structural and optical properties of the Cu2S thin film by X-ray diffractometer (XRD) and UV-Vis-NIR Spectrophotomet...

Thin film membranes of space environmentally stable polymeric materials possessing low color/solar absorptivity (α) are of interest for potential applications on Gossamer spacecraft. In addition to these properties, sufficient electrical conductivity is required in order to dissipate electrostatic charge (ESC) build-up brought about by the charged orbital environment. One approach to achieve su...

This paper studies a solid film lying on a liquid layer, which in turn lies on a solid substrate. It is well known that, subject to a compressive membrane force, the solid film wrinkles, dragging the liquid underneath to flow. When the solid film is very thin, the ratio between the number of atoms at the surface and that in the bulk becomes significant, so that surface stress contributes to the...