氧化锆纳米颗粒揭幕:对结构,机械和光学特性的多方面见解

IF 1.8 4区 物理与天体物理 Q4 CHEMISTRY, PHYSICAL Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences Pub Date : 2023-10-26 DOI:10.1515/zna-2023-0169
Iqra Abbas, Nadia Anwar, Muqarrab Ahmed, Muhammad Naeem, Ghazi Aman Nowsherwan, Shaheen Irfan, Rabia Khalid, Nazia Iram, Bushra Anwar, Muhammad Ahmad
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引用次数: 0

摘要

摘要本文报道了溶胶-凝胶法制备氧化锆纳米颗粒(NPs),研究了不同氯氧锆盐摩尔浓度(0.025 M、0.050 M、0.075 M、0.100 M和0.125 M)在维持碱性pH为9的条件下对纳米颗粒结构、力学和光学特性的影响。所有实验条件均采用基本介质进行,并进行XRD、SEM、硬度和光学分析。利用x射线衍射仪进行了结构分析,揭示了在合成条件下形成的混合相氧化锆(四方和单斜)。光学分析表明,透射率随摩尔浓度的增加而增加。折射率和消光系数符合正常色散行为,而折射率随摩尔浓度的增大而增大。在0.075 M的量浓度下,在紫外区观察到最高的折射率约为1.65,带隙最小值为3.96 eV。硬度随摩尔浓度的增加而不断增加,在考虑的摩尔浓度(0.025 M、0.050 M、0.075 M、0.100 M和0.125 M)范围内,当摩尔浓度为0.075 M时,硬度达到了1167 HV的最大值。
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Zirconia nanoparticles unveiled: multifaceted insights into structural, mechanical, and optical properties
Abstract This work reports the sol–gel synthesis of zirconia (ZrO 2 ) nanoparticles (NPs) in which the effect of varying molarities of zirconium oxychloride salt (such as 0.025 M, 0.050 M, 0.075 M, 0.100 M, and 0.125 M) has been investigated on the structural, mechanical, and optical characteristics by maintaining a basic pH at 9. All experimental conditions were conducted using basic media, with XRD, SEM, hardness, and optical analysis performed. Structural analysis, which was performed by using an X-ray diffractometer, reveals the formation of mixed phase zirconia (tetragonal and monoclinic) under as-synthesized conditions. Optical analysis shows that transmission increases as the molarity grows. The refractive index and extinction coefficient conform to the normal dispersion behavior, while the refractive index is observed to increase as the molarity becomes large. A high value of the refractive index of about 1.65 and lowest value of band gap 3.96 eV have been observed at a molarity of 0.075 M in the UV region. The hardness is observed to be continuously increased as the molarity grows, wherein the maximum hardness of 1167 HV is observed at a molarity of 0.075 M within the considered molarities (0.025 M, 0.050 M, 0.075 M, 0.100 M, and 0.125 M).
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来源期刊
CiteScore
3.00
自引率
5.60%
发文量
81
审稿时长
3.3 months
期刊介绍: A Journal of Physical Sciences: Zeitschrift für Naturforschung A (ZNA) is an international scientific journal which publishes original research papers from all areas of experimental and theoretical physics. Authors are encouraged to pay particular attention to a clear exposition of their respective subject, addressing a wide readership. In accordance with the name of our journal, which means “Journal for Natural Sciences”, manuscripts submitted to ZNA should have a tangible connection to actual physical phenomena. In particular, we welcome experiment-oriented contributions.
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