نتایج جستجو برای: porous zno

تعداد نتایج: 68825  

Journal: :Journal of Materials Research 2021

Micro-supercapacitors with high power density and stability promise emerging energy storage devices. However, their relatively low poor mechanical largely restricts application. Here, we report an all-in-one planar micro-supercapacitor (MSC) using ZnO nanosheets anchored on the porous 3D laser-induced graphene foams (ZnO@LIG) as electrode materials. Due to networks, hybrid exhibits fast charge ...

Journal: :Journal of composites science 2023

This paper presents the preparation and characterization of a porous antimicrobial composite material consisting diatomaceous earth, an inorganic pore-forming agent, nano-zinc oxide (ZnO). A modified direct precipitation device produced high-surface area ZnO powder. The effect reaction temperature, volume flow rate, titration rate on particle size was studied. Using sodium chloride, potassium n...

Journal: :journal of nanostructures 2014
a. asghari m. hemati m. ghaedi m. rajabi b. mirtamizdoust

in this study, zno nanoparticles were loaded on activated carbon prepared from almond shell (zno-np-ac). then, this novel material applied as an efficient adsorbent for the ultrasonic assisted simultaneous removal of basic blue 41(bb41) and basic red 46 (br46) in binary solution.  the efficiency of proposed activated carbon was enhanced by acid treatment and subsequent modification by physical ...

Journal: :Sensors and Actuators B-chemical 2021

Materials that have hygroscopic capabilities are potent sensing elements for humidity sensors. The behaviour of zinc oxide (ZnO) with modified nanostructure was synthesized and characterized. Heterocyclic additive added on ZnO to improve its capability sensitization. water molecule adsorption tested a characterization method adapted from American Society Testing (ASTM) determination. It found i...

Journal: :Journal of Materials Science and Chemical Engineering 2017

Highly textured undoped (pure) and Al doped ZnO nanocrystalline thin films prepared by ultrasonic atomization and pyrolysis method are reported in this paper. ZnCl2 water solution was converted into fine mist by ultrasonic atomizer (Gapusol 9001 RBI Meylan, France). The mist was pyrolyzed on the glass substrates in horizontal quartz reactor placed in furnace. The Structural and microstructural ...

Journal: : 2022

In this research, ZnO nanorods were utilized as gas sensor materials for detecting toluene vapour and hydrogen prior to following the use of Zeolitic imidazolate frameworks-8 (ZIF-8) filter. On porous Al2O3, ZIF-8 was deposited thickness 200 nm. Scanning electron microscope (SEM), XRD, sensing tests used examine material characteristics regarding ZnO. Thin films' sensitivity selectivity differe...

Journal: :Sustainability 2021

In this work, the synthesis, characterization, and photocatalytic performance of zinc oxide/activated carbon fiber nanocomposites prepared by hydrothermal method were investigated. Zinc oxide nanoparticles (ZnO-NP) deposited as seeds on porous activated (ACF) substrates. Then, nanorods (ZnO-NR) successfully grown assembled fibers’ surface in various patterns to form ZnO-NR/ACF nanocomposites. T...

Journal: :Nano select 2023

This study synthesizes hybrid of silver (Ag) and zinc oxide (ZnO) from their bulk salt to form Ag–ZnO nanocomposites for application as a humidity sensor. The Ag ZnO nanoparticles are synthesized using chemical reduction method, followed by co-mixing calcination yield the nanocomposite. characterized SEM, TEM, XRD, EDX establish morphological, structural elemental composition. Sensing measureme...

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