scholarly journals Textiles Functionalized with ZnO Nanoparticles Obtained by Chemical and Green Synthesis Protocols: Evaluation of the Type of Textile and Resistance to UV Radiation

Fibers ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 10
Author(s):  
David Asmat-Campos ◽  
Daniel Delfín-Narciso ◽  
Luisa Juárez-Cortijo
Keyword(s):  
Uv Radiation ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Chemical Method ◽  
Reducing Agent ◽  
Green Method ◽  
Textile Functionalization ◽  
Average Size ◽  
Method Show ◽  
Exhaustion Method

The study evaluates five types of commercial textiles with different cotton and polyester contents widely used in the garment industry. These textile samples have been subjected to treatment by the exhaustion method using zinc oxide nanoparticles (NP ZnO) (textile functionalization) with the aim of improving their efficiency in blocking UV radiation. The ZnO nanoparticles have been obtained by two methods: The green or also called biosynthesis (using the extract of Coriandrum sativum as an organic reducing agent), and the chemical method (using NaOH as an inorganic reducing agent). The results related to the green method show having achieved a defined geometric configuration with an average size of 97.77 nm (SD: 9.53). On the contrary, the nanostructures obtained by the chemical method show pentagonal configurations with average sizes of 113 nm (SD: 6.72). The textiles functionalized with NP ZnO obtained by biosynthesis showed a better efficiency in blocking ultraviolet radiation (UV).

Tribological properties of oleic acid-modified zinc oxide nanoparticles as the lubricant additive in poly-alpha olefin and diisooctyl sebacate base oils

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 69836-69844 ◽  
Author(s):  
Lili Wu ◽  
Yujuan Zhang ◽  
Guangbin Yang ◽  
Shengmao Zhang ◽  
Laigui Yu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Oleic Acid ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Lubricant Additive ◽  
Oxide Nanoparticles ◽  
Base Oils ◽  
Alpha Olefin ◽  
Modified Zno Nanoparticles ◽  
Average Size

This paper presents OA-modified ZnO nanoparticles with an average size of 4.04 nm as friction-reducing and antiwear lubricant additive in poly-alpha olefin (PAO) and diisooctyl sebacate (DIOS) base oils under boundary lubricanting conditions.

scholarly journals Microwave-Assisted Combustion Synthesis of ZnO Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
M. Kooti ◽  
A. Naghdi Sedeh
Keyword(s):  
Electron Microscopy ◽  
Zno Nanoparticles ◽  
Combustion Method ◽  
Zinc Nitrate ◽  
High Yield ◽  
Fast Method ◽  
Simple Method ◽  
X Ray ◽  
Microwave Assisted ◽  
Average Size

A new and simple method was applied for the synthesis of ZnO nanoparticles with an average size of 20 nm. In this microwave-assisted combustion method, glycine as a fuel and zinc nitrate as precursor were used. The final product was obtained very fast with high yield and purity. The synthesized nanoscale ZnO was characterized by X-ray Diffraction (XRD), Energy Dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FT-IR). The size and morphology of the ZnO nanoparticles have been determined by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) techniques. This is a simple and fast method for the preparation of ZnO nanoparticles with no need for expensive materials or complicated treatments.

Microbiote shift in sequencing batch reactors in response to antimicrobial ZnO nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 110108-110111 ◽  
Author(s):  
Zhenghui Liu ◽  
Huifang Zhou ◽  
Jiefeng Liu ◽  
Xudong Yin ◽  
Yufeng Mao ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Wastewater Treatment ◽  
Adverse Effects ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Wastewater Treatment Plants ◽  
Oxide Nanoparticles ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Zno Nps

Zinc oxide nanoparticles (ZnO NPs) have been monitored in wastewater treatment plants as their potential adverse effects on functional microorganisms have been causing increasing concern.

Raspberry-like morphology of polyvinyl chloride/zinc oxide nanoparticles induced by surface interaction and formation of nanoporous foam

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 36845-36857 ◽  
Author(s):  
Tingting Ren ◽  
Jie Wang ◽  
Jinfeng Yuan ◽  
Mingwang Pan ◽  
Gang Liu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Polyvinyl Chloride ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Surface Interaction ◽  
Oxide Nanoparticles ◽  
Nano Coating ◽  
Coating Method

P(VC-co-AAEM)/ZnO nanoparticles are prepared by a nano-coating method, and the morphology of the raspberry-like particles is adjusted by hydrophilicity and NaOH concentration.

scholarly journals Effects of Humic Acid and Natural Sunlight Irradiation on the Behaviour of Zinc Oxide Nanoparticles in the Aqueous Environment

2020 ◽  
Vol 11 (4) ◽  
pp. 11256-11271
Keyword(s):  
Humic Acid ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Large Scale ◽  
Aquatic Organisms ◽  
Consumer Products ◽  
Oxide Nanoparticles ◽  
Aqueous Environment ◽  
Sunlight Irradiation ◽  
Langmuir Isotherm Model

The unique properties of ZnO nanoparticles have attracted scientists’ interest to produce on a large-scale. Household items, cosmetics, consumer products, and electric sensors are some products that utilize these ZnO nanomaterials. Eventually, ZnO nanoparticles will be released into the environment in various ways. Once released, ZnO nanoparticles would dissociate into Zn2+ ions, which are toxic to aquatic organisms. The presence of humic acid and exposure to sunlight could affect the dissolution of ZnO nanoparticles. Two sizes of commercial ZnO nanoparticles (< 50 nm and < 100 nm) were chosen to study the influence of humic acid and sunlight on the dissolution. In the presence of humic acid, the dissolution of both sizes is higher, with 67 % and 39 % Zn2+ dissolved for < 50 nm and < 100 nm, respectively. The concentration of Zn2+ ions seems to be consistent or stable when exposed to sunlight. However, the humic acid enhanced the release of Zn2+ ions. Langmuir isotherm model best fitted for the humic acid's sorption onto the ZnO nanoparticles with the process been favorable.

scholarly journals Performance of ZnO nanoparticles for fire retardant and UV protection of pine wood

BioResources ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. 6963-6969
Author(s):  
Higor Rogerio Favarim ◽  
Lucas Oliveira Leite
Keyword(s):  
Uv Radiation ◽  
Zno Nanoparticles ◽  
Sol Gel ◽  
Fire Retardant ◽  
Zinc Nitrate ◽  
Uv Resistance ◽  
Pine Wood ◽  
Open Flame ◽  
Fire Retardance ◽  
Uv Lamp

The aim of this paper was to investigate the influence of zinc oxide (ZnO) nanoparticles on the resistance of pine wood to fire and ultraviolet (UV) radiation. The ZnO nanoparticles were prepared from aqueous zinc nitrate via a proteic sol-gel method. Dried samples were impregnated using immersion in an aqueous solution of ZnO nanoparticles in the amount of 1 wt.% wood. Samples were exposed to an open flame to test the fire retardance, and a high-pressure UV lamp was used to test the UV resistance. The results showed an improvement in the fire retardance and UV radiation resistance after the impregnation of ZnO nanoparticles.

Synthesis and Antimicrobial Properties of Zinc Oxide Nanoparticles

2020 ◽  
Vol 20 (10) ◽  
pp. 5977-5996 ◽  
Author(s):  
Saee Gharpure ◽  
Balaprasad Ankamwar
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Antibacterial Properties ◽  
Antimicrobial Properties ◽  
Physical Contact ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Promising Alternative

With increase in incidence of multidrug resistant pathogens, there is a demand to adapt newer approaches in order to combat these diseases as traditional therapy is insufficient for their treatment. Use of nanotechnology provides a promising alternative as antimicrobial agents as against traditional antibiotics. Metal oxides have been exploited for a long times for their antimicrobial properties. Zinc oxide nanoparticles (ZnO NPs) are preferred over other metal oxide nanoparticles because of their bio-compatible nature and excellent antibacterial potentials. The basic mechanism of bactericidal nature of ZnO nanoparticles includes physical contact between ZnO nanoparticles and the bacterial cell wall, generation of reactive oxygen species (ROS) as well as free radicals and release of Zn2+ ions. This review focuses on different synthesis methods of ZnO nanoparticles, various analytical techniques frequently used for testing antibacterial properties, mechanism explaining antibacterial nature of ZnO nanoparticles as well as different factors affecting the antibacterial properties.

Nonvolatile ternary resistive switching memory devices based on the polymer composites containing zinc oxide nanoparticles

2018 ◽  
Vol 20 (8) ◽  
pp. 5771-5779 ◽  
Author(s):  
Yanmei Sun ◽  
Dianzhong Wen ◽  
Xuduo Bai
Keyword(s):  
Zinc Oxide ◽  
Polymer Blends ◽  
Polymer Composites ◽  
Resistive Switching ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Memory Devices ◽  
Resistive Switching Memory ◽  
Switching Memory

Nonvolatile ternary memory devices were fabricated from the composites polymer blends containing zinc oxide (ZnO) nanoparticles.

scholarly journals Phytosynthetic Ag doped ZnO nanoparticles: Semiconducting green remediators

2018 ◽  
Vol 16 (1) ◽  
pp. 556-570 ◽  
Author(s):  
Khuram Shahzad Ahmad ◽  
Shaan Bibi Jaffri
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Organic Dyes ◽  
Zinc Acetate Dihydrate ◽  
Polluted Water ◽  
Oxide Nanoparticles ◽  
Pseudo First Order Reaction ◽  
One Pot ◽  
Doped Zno

AbstractHighly stable semiconducting silver doped zinc oxide nanoparticles have been synthesized via facile, biomimetic and sustainable route, through utilization of Zinc acetate dihydrate (C4H6O4Zn · 2H2O) as host, Silver nitrate (AgNO3) as dopant and phytochemicals of angiospermic medicinal plant Prunus cerasifera as the reducing agents. Synthesis of Ag doped ZnO nanoparticles was done in a one pot synthetic mode by varying the amount of dopant from 0.2 – 2.0%. Synthesized photocatalyst nanoparticles were analyzed via UV-vis, FTIR, XRD and SEM. Commendable alleviation in the direct band gap i.e. 2.81 eV was achieved as a result of doping. Silver doped zinc oxide nanoparticles size ranged between 72.11 – 100 nm with rough surface morphology and higher polydispersity degree. The XRD patterns revealed the hexagonal wurtzite geometry of crystals with an average crystallite size of 2.99 nm. Persistent organic dyes Methyl Orange, Safranin O and Rhodamine B were sustainably photodegraded in direct solar irradiance with remarkable degradation percentages up to 81.76, 74.11 and 85.52% in limited time with pseudo first order reaction kinetics (R2 =0.99, 0.99 and 0.97). Furthermore, efficient inhibition against nine microbes of biomedical and agriculturally significance was achieved. Synthesized nanoparticles are potential green remediators of polluted water and perilous pathogens.

scholarly journals Synthesis of Zinc Oxide Nanoparticles Using Leaf Extract of Lippia adoensis (Koseret) and Evaluation of Its Antibacterial Activity

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Meron Girma Demissie ◽  
Fedlu Kedir Sabir ◽  
Gemechu Deressa Edossa ◽  
Bedasa Abdisa Gonfa
Keyword(s):  
Electron Microscopy ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Leaf Extract ◽  
Diffusion Method ◽  
Oxide Nanoparticles ◽  
Lippia Adoensis

The synthesis of metal oxide nanoparticles with the use of medicinal plant extract is a promising alternative to the conventional chemical method. This work aimed to synthesize zinc oxide nanoparticles using a green approach from indigenous “Koseret” Lippia adoensis leaf extract which is an endemic medicinal plant and cultivated in home gardens of different regions of Ethiopia. The biosynthesized zinc oxide nanoparticles were characterized using thermogravimetric analysis, X-ray diffraction, scanning electron microscopy-energy dispersive spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and Fourier transform infrared spectroscopy. Furthermore, this study also evaluated the antibacterial activity of the synthesized ZnO nanoparticles against clinical and standard strains of Escherichia coli, Klebsiella pneumonia, Staphylococcus aureus, and Enterococcus faecalis by the disc diffusion method. According to the result of this study, ZnO nanoparticles synthesized using Lippia adoensis leaf extract showed promising result against both Gram-positive and Gram-negative bacterial strains with a maximum inhibition zone of 14 mm and 12 mm, respectively, using uncalcinated form of the synthesized ZnO nanoparticles.

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