I want to incorporate ZnO nanoparticles into CNF. SiO2 nanoparticles have being used previously. I am looking for justifications to use ZnO as an alternative to SiO2.
Dear Dr. Abdullahi Abbas Adam,
the use of ZnO nanoparticles particles instead of SiO2 nanoparticles into CNF could be successful in the biomedical field...
I suggest you to have a look atbthe following papers:
-Preparation of flexible zinc oxide/carbon nanofiber webs for mid-temperature desulfurization
Soojung Kim, BharatBajaj, Chang Ki Byun, Soon-Jin Kwon, Han-Ik Joh, Kwang Bok Yi, Sungho Lee
Applied Surface Science, Volume 320, Pages 218-224 (2014)
Available at: https://www.sciencedirect.com/science/article/abs/pii/S0169433214020844
-Genotoxic and cytotoxic effects of ZnO nanoparticles for Dunaliella tertiolecta and comparison with SiO2 and TiO2 effects at population growth inhibition levels
Simona Schiavo, Maria Oliviero, Maria Lucia Miglietta, Sonia Manzo
Science of The Total Environment 550:619-627 (2016)
Available on RG at: https://www.researchgate.net/publication/292950015_Genotoxic_and_cytotoxic_effects_of_ZnO_nanoparticles_for_Dunaliella_tertiolecta_and_comparison_with_SiO2_and_TiO2_effects_at_population_growth_inhibition_levels
-The Advancing of Zinc Oxide Nanoparticles for Biomedical Applications
Jinhuan Jiang, Jiang Pi, and Jiye Ca
Bioinorganic Chemistry and Applications, Volume 2018, Article ID 1062562, 18 pages (2018)
Available at: https://www.hindawi.com/journals/bca/2018/1062562/
-Toxicity of TiO2, ZnO, and SiO2 Nanoparticles in Human Lung Cells: Safe-by-Design Development of Construction Materials
Monika Remzova, Radek Zouzelka, Tana Brzicova, Kristyna Vrbova, Dominik Pinkas, Pavel Rőssner, Jan Topinka, and Jiri Rathousky
Nanomaterials, 9(7): 968 (2019)
Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6669541/
Best regards, Pierluigi Traverso
You may get some information from this paper
doi:10.3390/nano9070968
I think the proper justification for use of zno nanoparticle instead of sio2 can be given by the band gap theory via uv-vis spectrum which help to improve property of CNF.
Thank you for your inputs. I am very grateful. However, what is the most suitable solvent to etch ZnO nanoparticles?
You can use Dimethyl sulfoxide (DMSO) as a solvent for ZnO nanoparticles.
Dear Dr. Abdullahi Abbas Adam,
if you need a solvent for ZnO to perform UV or PL analysis, Ethanol is the most suitable one for the measurements in solution phase with ZnO nanoparticles. It evaporates in lesser rate than Methanol and also it has no characteristic absorption and emission in the visible range. The Zno nanoparticles easily disperse in Ethanol upon sonication, though it depends on the size of your nanoparticles.
Best regards, Pierluigi Traverso
Pierluigi Traverso I want to etch the Zno nanoparticles on the surface of the biomass CNF. Do you suggest dipping CNF in ethanol will etch the Zno nanoparticles, thereby creating mesoporous CNF? In an article I read, HF was used in a similar way to etch SiO2 nanoparticles.
Generally, ethanol is used as a solvent for ZnO nanoparticles if you are doing optical characterization like performing PL, emission measurement or even looking at lasing from this nanoparticles
Dear Dr. Abdullahi Abbas Adam ,
from a chemical point of view zinc oxide is an amphoteric oxide. It is nearly insoluble in water and alcohol, but it is soluble in (degraded by) most acids, such as hydrochloric acid: ZnO + 2 HCl → ZnCl2 + H2O
Bases also degrade the solid to give soluble zincates: ZnO + 2NaOH + H2O → Na2(Zn(OH)4)
Some researchers use for etching, a low concentration HCl solution, as example you can see below:
-Morphological Study of Zinc-Oxide Nanorods Grown by Hot Water Treatment Suitable for Solar Cells Conversion Efficiency Enhancement
Mohammad Khairul Basher, S. M. Shah Riyadh, Md. Khalid Hossain, Mahmudul Hassan, Md. Abdur Rafiq Akand, S. M. Amir Al-Zumahi, Md. Abdul Matin, Mohammad Nur-EAlam, Narottam Das
Preprint 2020, Available at: https://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiem-fI7YvqAhWDwcQBHX2zBAw4ChAWMAZ6BAgHEAE&url=https%3A%2F%2Fwww.preprints.org%2Fmanuscript%2F202005.0344%2Fv1%2Fdownload&usg=AOvVaw1BaISk2AvilCu9v_f_YCuL
The use of HF has been shown to create a higher density of craters than HCl or other acids. Like the temperature and concentration dependence in HCl etching, single crystal ZnO etching showed that the higher density of craters arises from the more homogeneous etching of defects.
-Chemical Etching of Zinc Oxide for Thin-Film Silicon Solar Cells
Jürgen Hüpkes, Jorj I Owen, Sascha E Pust,and Eerke Bunte
Chemphyschem., 16; 13(1): 66–73 (2012)
Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3531622/
There is no specific literature on the subject; personally if I had the opportunity I would do some preliminary tests ....
Good work and best regards, Pierluigi Traverso
you can make use from the following link and the attached pdf
https://www.cd-bioparticles.com/t/Properties-and-Applications-of-Silica-Nanoparticles_57.html
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