Effect of Chromium Interlayer Thickness on Optical Properties of Au-Ag Nanoparticle Array

Effect of Chromium Interlayer Thickness on Optical Properties of Au-Ag Nanoparticle Arra

High-performance hazardous aerogel/liquid barriers from fluffy, antibacterial superhydrophobic nanofiber membranes

Fibrous membranes have been regarded as one of the most effective barriers against hazardous matters, e.g., pathogen, airborne particulates, and liquids. However, developing multi-functional membranes with high air filtration performances, liquid barrier properties, and antibacterial activities remains challenging. Herein, a robust nanofibrous membrane with fluffy structure has been developed through a facile one-step electrospinning process. Under the synergistic effect of polyetherimide (PEI) nanofibers, low surface energy fluorinated alkyl silane (FAS), and fluorinated ZIF67 nanoparticles, the resultant PEI/FAS/F-ZIF67 composite nanofiber membrane shows superhydrophobicity with WCA of 155° and antibacterial activity with efficiency of over 99 %. The addition of FAS renders the membrane a fluffy fibrous structure, which further enhances the filtration performances with a filtration efficiency of 99.99 % and a low pressure drop of 125 Pa. Owing to the superhydrophobicity, the membrane also shows excellent liquid repellent properties with hydrostatic pressures of 60.6 kPa and 14.0 kPa to water and blood, respectively. Furthermore, benefiting from the excellent thermal stability of PEI, the composite membrane can well maintain its filtration performances at high temperature of 200 ℃. Overall, the proposed PEI/FAS/F-ZIF67 nanofiber membrane demonstrates high potential to be widely applied for air purification and medical protection applications

Effect of SiO2/CaO on the viscosity and structure of yellow phosphorus slag in the electric furnace

Effect of SiO2/CaO on the viscosity and structure of yellow phosphorus slag in the electric furnac

Co-pyrolysis of Hami coal and mixed plastic: An interaction between primary volatiles study via in-situ Py-TOF-MS

Co-pyrolysis of Hami coal and mixed plastic: An interaction between primary volatiles study via in-situ Py-TOF-M

Applications of nano-porous graphene materials-critical review on performance and challenges

The design and fabrication of 2D nano-porous architectures with controllable porosity and pore structure, as well as unique properties at the nanoscale are critical for applications such as separation, sensing, energy and catalysis. Perforation strategies across 2D materials, primarily graphene, have shown promising opportunities to develop nanostructures with tunable ranges of pore size distribution, pore density and uniformity. In addition, the perforated graphene structures exhibit improved properties in terms of plasmonic diffusion, catalytic activity and thermo-electrical properties compared to dense 2D materials and are opening new avenues for the development of responsive or reactive materials. This review presents and discusses the very recent developments in the synthesis of perforated graphene-based materials and correlates the morphology and other properties of such 2D nano-porous materials to their performance in applications such as separation, sensing and energy. Challenges related to the controlled engineering and manufacturing of such nanostructures particularly from a scalability point of view, as well as potential avenues for performance improvements through alternative 2D perforated materials are also critically evaluated