Synthesis and structural characterization of nickel oxide nanoparticles synthesized by Polymerized complexed (PC) method

2010 ◽  
Author(s):  
K. Wongsaprom ◽  
S. Maensiri
Keyword(s):  
Nickel Oxide ◽  
Structural Characterization ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Pc Method

scholarly journals MICROWAVE ASSISTED SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF NICKEL OXIDE NANOPARTICLES

2016 ◽  
Vol 3 (1) ◽  
pp. 12-14
Author(s):  
Kalpanadevi K ◽  
Manimekalai R
Keyword(s):  
Electron Microscope ◽  
Nickel Oxide ◽  
Structural Characterization ◽  
Nano Particles ◽  
Microwave Assisted Synthesis ◽  
Nio Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Transmission Electron ◽  
Good Crystallinity

Nickel oxide (NiO) nano-particles were produced via a simple microwave method from the Ni(OH)2 precursor, which was obtained by slow drop-wise addition of 0.1M sodium hydroxide to 0.1M nickel nitrate. The mixture was vigorously stirred until the pH reached 7.2. The mixture was then irradiated with microwave to deposit Ni(OH)2 at a better precipitation rate. Drying the precipitate at 320°C resulted in formation of NiO nanoparticles. High Resolution Transmission Electron Microscope (HRTEM), Scanning Electron Microscope (SEM) and X-ray diffraction (XRD), employed for the structural characterization of the as-prepared NiO nanoparticles, revealed their good crystallinity and high-purity. Microwave irradiation increased homogeneity and decreased the mean particle size of the produced NiO particles.

Synthesis and characterization of nickel oxide nanoparticles by sol-gel technique

2020 ◽  
Author(s):  
Infantiya Stephen Grace ◽  
J. Vinola ◽  
Shubramaniyan Deepapriya ◽  
David Rodney John ◽  
A. Aslinjensipriya ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Sol Gel ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Gel Technique

Synthesis and Characterization of Nickel Oxide Nanoparticles from Ni(salen) as Precursor

2013 ◽  
Vol 24 (1) ◽  
pp. 289-297 ◽  
Author(s):  
Afsaneh Khansari ◽  
Morteza Enhessari ◽  
Masoud Salavati-Niasari
Keyword(s):  
Nickel Oxide ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles

scholarly journals Toxicity of Nickel Oxide Nanoparticles on a Freshwater Green Algal Strain ofChlorella vulgaris

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Abdallah Oukarroum ◽  
Wassila Zaidi ◽  
Mahshid Samadani ◽  
David Dewez
Keyword(s):  
Nickel Oxide ◽  
Photosynthetic Apparatus ◽  
Physicochemical Characterization ◽  
Chlorophyll Synthesis ◽  
Photochemical Reactions ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Green Algal ◽  
Nio Nps

A freshwater microalga strain ofChlorella vulgariswas used to investigate toxic effects induced by nickel oxide nanoparticles (NiO-NPs) in suspension. Algal cells were exposed during 96 h to 0–100 mg L−1of NiO-NPs and analyzed by flow cytometry. Physicochemical characterization of nanoparticles in tested media showed a soluble fraction (free Ni2+) of only 6.42% for 100 mg L−1of NiO-NPs, indicating the low solubility capacity of these NPs. Toxicity analysis showed cellular alterations which were related to NiO-NPs concentration, such as inhibition in cell division (relative cell size and granularity), deterioration of the photosynthetic apparatus (chlorophyll synthesis and photochemical reactions of photosynthesis), and oxidative stress (ROS production). The change in cellular viability demonstrated to be a very sensitive biomarker of NiO-NPs toxicity with EC50of 13.7 mg L−1. Analysis by TEM and X-ray confirmed that NiO-NPs were able to cross biological membranes and to accumulate inside algal cells. Therefore, this study provides a characterization of both physicochemical and toxicological properties of NiO-NPs suspensions in tested media. The use of the freshwater strain ofC. vulgarisdemonstrated to be a sensitive bioindicator of NiO-NPs toxicity on the viability of green algae.

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