Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India.
Guru Govind Singh Indraprastha University, Delhi 110078, India.
J Nanosci Nanotechnol. 2021 Dec 1;21(12):6094-6100. doi: 10.1166/jnn.2021.19529.
In this article, we propose high-performance colorimetric detection of Hg using silver nanoprisms. The spherical and triangular AgNPs were synthesized using varied concentration of NaBH4. Pristine AgNPs without any further modification were used for the detection of various metal ions including Hg, Pb, Cl, Cd, Co, Cu, Ba, Pb, Cr, Cr₂O , Fe, Fe etc. AgNPs were not only selective in detecting the ions of Cl and Hg ions but also highly sensitive. Minimum detection limit was observed to be as low as 10 ppm for both Hg and Cl. Water samples collected from various locations detected for the presence of various heavy metals. Silver nanoprisms owing to their surface plasmon resonance exhibit highly selective tendency towards detection against Hg.
在本文中，我们提出了使用银纳米棱柱进行汞的高性能比色检测。通过改变 NaBH4 的浓度合成了球形和三角型的 AgNPs。未经任何进一步修饰的原始 AgNPs 用于检测各种金属离子，包括 Hg、Pb、Cl、Cd、Co、Cu、Ba、Pb、Cr、Cr₂O、Fe、Fe 等。AgNPs 不仅对 Cl 和 Hg 离子的检测具有选择性，而且还具有高度的灵敏性。对于 Hg 和 Cl，最低检测限均低至 10ppm。从不同地点采集的水样检测到存在各种重金属。银纳米棱柱由于其表面等离子体共振，表现出对 Hg 检测的高度选择性。
