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Photoluminescence property of laser-ablated zinc oxide-carbon quantum dots nanocomposites for detection of Hg and Pb ions
Journal of Nanophotonics ( IF 1.5 ) Pub Date : 2020-10-30 , DOI: 10.1117/1.jnp.14.046004
Amir Reza Sadrolhosseini 1 , Mohr. Ikmal Hafizi Bin Azaman 2 , Amir Masoud Arabi 3 , Suhaidi Shafie 1 , Nur Hazahsha Shamsudin 4 , Mohd. Adzir Mahdi 5 , Suraya Abdul Rashid 6
Affiliation  

Abstract. Zinc oxide nanoparticles (ZnO-NPs) were fabricated using carbon quantum dots (CQD) solution using a laser ablation technique to investigate the photoluminescence properties and applications for the interaction of mercury and lead ions. The ablation times were 5, 7, 10, and 13 min. The prepared samples were characterized using UV–visible spectroscopy, Fourier transform infrared spectroscopy, and high-resolution transmission electron microscopy, which verified the formation of ZnO-NPs in the CQD solution and the capping of the spherical nanoparticles by the functional group of the CQD. Spherical ZnO-NPs were formed in the CQD solution with a particle size in the range of 7.5 to 14.03 nm. The prepared samples were then used to detect mercury and lead ions in aqueous solution using photoluminescence spectroscopy. The photoluminescence peak shift in the presence of mercury was greater than that in the presence of lead. Thus, the interaction of zinc oxide–nanoparticles/CQD with mercury is stronger than that of the CQD with lead.

中文翻译:

激光烧蚀氧化锌-碳量子点纳米复合材料的光致发光性能检测汞和铅离子

摘要。氧化锌纳米颗粒 (ZnO-NPs) 是使用碳量子点 (CQD) 溶液使用激光烧蚀技术制造的,以研究光致发光特性以及汞和铅离子相互作用的应用。消融时间分别为 5、7、10 和 13 分钟。使用紫外-可见光谱、傅里叶变换红外光谱和高分辨率透射电子显微镜对制备的样品进行表征,验证了 CQD 溶液中 ZnO-NPs 的形成以及 CQD 的官能团对球形纳米粒子的封端. 在 CQD 溶液中形成球形 ZnO-NP,其粒径范围为 7.5 至 14.03 nm。然后将制备的样品用于使用光致发光光谱检测水溶液中的汞和铅离子。存在汞时的光致发光峰位移比存在铅时大。因此,氧化锌-纳米颗粒/CQD 与汞的相互作用强于 CQD 与铅的相互作用。
更新日期:2020-10-30
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