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Abstract

Nanotechnology is a manipulation of nature that has emerged through the use of basic sciences, material science and engineering at the nano-scale. The interaction between biological environment and nanoparticles-nanoparticles or nanoparticles-organic materials is not yet well-understood. The toxic effects of nanoparticles on plants were investigated and it was proved that they caused morphological and physiological changes in plants. This study aimed to determine the effects of TiO -TiO2Ag nanoparticles, and co-application of EDDS-TiO2Ag nanoparticles alone, co-application of ZnO nanoparticles- Ag nanoparticles on seed germination, seedling vigor, radicle and plumule elongation of two different wheat species. In the experimental stage, ten seeds were placed in petri-dishes with a double layer of fi lter paper which was used as an inert material. Then 5 mL of TiO2Ag, ZnO+TiO2Ag, and EDDS+TiO2Ag suspensions were added to every petri dish. Results showed that the maximum SVI was determined at the concentration of 50 mg∙L-1 TiO2 Ag+EDDS for bread wheat and the minimum SVI was observed at 100 mg∙L-1 TiO2Ag nanoparticles concentration for durum wheat. The effect of both nanoparticles-nanoparticles interaction and the other chemicals-nanoparticles interaction on the ecosystems should be evaluated.

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Authors and Affiliations

G. Doğaroğlu Zeynep
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Abstract

As a wafer cleaning process, RCA (Radio Corporation of America) cleaning is mainly used. However, RCA cleaning has problems such as instability of bath life, re-adsorption of impurities and high-temperature cleaning. Herein, we tried to improve the purity of silicon wafers by using a chelating agent (oxalic acid) to solve these problems. Compounds produced by the reaction between the cleaning solution and each metal powder were identified by referring to the pourbaix diagram. All metals exhibited a particle size distribution of 10 μm or more before reaction, but a particle size distribution of 500 nm or less after reaction. In addition, it was confirmed that the metals before and after the reaction showed different absorbances. As a result of elemental analysis on the surface of the reclaimed silicon wafer cleaned through such a cleaning solution, it was confirmed that no secondary phase was detected other than Si.
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Bibliography

[1] K. Liu, D. Zuo, X.P. Li, M. Rahman, J. Vac. Sci. Technol. B: Microelectronics and Nanometer Structures 27 (3), 1361-1366 (2009).
[2] M. Kim, K. Ryu, K.J. Lee, J. Korean Powder Metall. Inst. 28 (1), 25-30 (2021)
[3] W. Kern, J. Electrochem. Soc. 137 (6), 1887-1892 (1990).
[4] O .J. Anttila, J. Electrochem. Soc. 139 (4), 1180-1185 (1992).
[5] K. Saga, J. Electrochem. Soc. 143 (10), 3279-3284 (1996).
[6] M. Itano, F.W. Kern, M. Miyashita, T. Ohmi, IEEE Trans. Semicond. Manuf. 6 (3), 258-267 (1993).
[7] W. Kern, Handbook of silicon wafer cleaning technology, United States 2018.
[8] M. Matsuo, T. Takahashi, H. Habuka, A. Goto, Mat. Sci. Semicon. Proc. 110, 104970 (2020).
[9] G .W. Gale, D.L. Rath, E.I. Cooper, S. Estes, H.F. Okorn-Schmidt, J. Brigante, R. Jagannathan, G. Settembre, E. Adams, J. Electrochem. Soc. 148 (9), G513-G516 (2001).
[10] D. Liu, Z. Li, Y. Zhu, Z. Li, R. Kumar, Carbohydr. Polym. 111, 469-476 (2014).
[11] J.B. Fein, Geology 19 (10), 1037-1040 (1991).
[12] N. Zubair, K. Akhtar, Trans. Nonferrous Met. Soc. China 29 (1), 143-156 (2019).
[13] D. Nansheng, W. Feng, L. Fan, L. Zan, Chemosphere 35 (11), 2697-2706 (1997).
[14] A.K. Sharma, A. Singh, R.K. Mehta, S. Sharma, S.P. Bansal, K.S. Gupta, Int. J. Chem. Kinet. 43 (7), 379-392 (2011).
[15] M.Z. Mubarok, J. Lieberto, Procedia Earth Planet. Sci. 6, 457-464 (2013).
[16] D. Rai, B.M. Sass, D.A. Moore, Inorg. Chem. 26 (3), 345-349 (1987).
[17] C.H. Bamford, R.G. Compton, C.F.H. Tipper, Reactions of metallic salts and complexes, and organometallic compounds, Elsevier 1972.
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Authors and Affiliations

Keunhyuk Ryu
1
Myungsuk Kim
1
Jaeseok Roh
1
ORCID: ORCID
Kun-Jae Lee
1
ORCID: ORCID

  1. Dankook University, Department of Energy Engineering, Cheonan 31116, Republic of Korea

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