Effect of Ni morphology on removal of pentachlorophenol with Fe/Ni nanomaterials

2016 ◽  
Vol 16 (3) ◽  
pp. 810-816
Author(s):  
Rong Cheng ◽  
Can Cheng ◽  
Peng Liu ◽  
Lei Shi ◽  
Zhong Ma

Chlorinated phenols are a kind of environmental priority pollutant that attract much attention. Nanosized Fe and Fe/Ni materials are considered as promising options for chlorinated phenol removal. The effect of Ni morphology on the removal of pentachlorophenol (PCP) with Fe/Ni nanomaterials was investigated in this study. Iron nanoparticles and nickel nanomaterials with different shapes were synthesized using a chemical reduction method and wet chemical techniques, respectively. The concentrations of PCP and chloride in solutions were measured with and without Ni present. The intermediates of PCP were also analyzed. The results showed that the dechlorination of PCP was promoted by Ni nanomaterials, among which the tubular porous Ni nanomaterials expressed the most promotion, then those with net shape and nanochains. However, the tubular porous Ni nanomaterials inhibited the removal of PCP, and the other two expressed a certain promotion. In the Fe/Ni system, Fe nanoparticles transformed into magnetite (Fe3O4) and/or maghemite (Fe2O3), and Ni nanomaterials were still pure Ni after reaction. The introduction of Ni nanomaterials would improve dechlorination of PCP, but the removal of PCP might be inhibited or improved as the morphology of Ni changed.

2019 ◽  
Vol 7 (1) ◽  
pp. 112-115 ◽  
Author(s):  
Amit Kumar ◽  
Xinchun Yang ◽  
Qiang Xu

Ultrafine and uniformly dispersed bimetallic Pt–Ni nanoparticles (NPs) have been immobilized on novel 3-dimensional N-doped graphene networks (NGNs) by a facile wet chemical reduction method, which exhibit extremely high catalytic activity for the dehydrogenation of hydrazine hydrate.


2011 ◽  
Vol 18 (3) ◽  
pp. 244-249 ◽  
Author(s):  
Hyun-Seon Hong ◽  
Young-Dae Ko ◽  
Lee-Seung Kang ◽  
Geon-Hong Kim ◽  
Hang-Chul Jung

2021 ◽  
Vol 8 (3) ◽  
pp. 118-122
Author(s):  
Manish Srivastava ◽  
Preeti Tomer ◽  
Anamika Srivastava ◽  
Swapnil Sharma

In the area of life sciences,iron nanoparticles (Fe NPs) have many applications. In this paper, the unique properties of iron nanoparticles as antimicrobials are studied. In this study, nanoparticles of iron have been fabricated by green and chemical reduction method. With the help of FESEM analysis and Zeta size analysis, the usual value of nanoparticles was found to be 10-30 nm in size. Furthermore, the prepared nanoparticles were examined for antibacterial perspective aligned with gram-positive and negative strains namely Staphylococcus aureus & Bacillus subtilis and Escherichia coli, using agar plate method and IC was also estimated using tube dilution assay.


Author(s):  
Kamyar Shameli ◽  
Majid Darroudi ◽  
Mansor Bin Ahmad ◽  
Wan Md. Zin Wan Yunis ◽  
Nor Azowa Ibrahim

2020 ◽  
Vol 2 (2) ◽  
pp. 21

Silver nanoparticles (AgNPs) are used in the functionalization of many materials. For this purpose, in our study, Ag (I) particles were deposited on boron nitride (BN) surfaces by using AgNO3 salt and NaBH4 reductants. A wet chemical reduction method, was used for this process. After precipitation, the solution was passed through filter paper and dried. The silver and boron nitride phases were confirmed by the XRD analysis of the solid mixture obtained. The analysis of the particles accumulated on the surface was examined using SEM images. As a result, it was understood that AgNPs particles did not form oxidic compounds and occurred on BN surfaces, but agglomerations were observed in some regions.


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