Optical and colorimetric sensing of toxic mercury ion using green synthesized silver nanoparticles

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI:10.4314/bcse.v37i5.19

A. Kalam, A. G. Al-Sehemi, M. Ashrafuzzaman, A. M. Sharif, P. Yadav and G. Du

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Abstract

ABSTRACT. In ancient, human used silver and silver salts but silver nanoparticles (AgNPs) have recently been found to be accepted as the result of green synthesis. Now a day, silver nanoparticles (AgNPs) have become extremely popular in the field of the sensor due to their remarkable and significant optical, chemical, and electrical properties. In this paper, we have reported the green and reasonably priced synthesis of silver nanoparticles using Acacia confusa leaf extract which acts as both capping as well as reducing agents. The optical sensing and morphology of the as prepared AgNPs were determined using ultraviolet-visible (UV-Visible) and scanning electron microscopy (SEM) analysis. The sensing of Hg2+ ion through colorimetric and optical have been studied by UV-Vis spectroscopy as well as the naked eye. Moreover, the SEM analysis showed that the volume of the extract had no considerable effect on the morphology except for size. The colorimetric and optical sensing study revealed that the as-synthesized AgNPs exhibited a good response with colorimetric and optical sensing activity specifically towards the toxic Hg2+ ion. KEY WORDS: Green synthesis, AgNPs, Optical sensor, Ultrasonic method Bull. Chem. Soc. Ethiop. 2023, 37(5), 1287-1298. DOI: https://dx.doi.org/10.4314/bcse.v37i5.19

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绿色合成银纳米粒子对有毒汞离子的光学和比色传感

摘要。在古代，人类使用的银和银盐，但银纳米颗粒（AgNP）最近被发现是绿色合成的结果。如今，银纳米颗粒（AgNPs）由于其显著的光学、化学和电学特性，在传感器领域变得非常受欢迎。在这篇论文中，我们报道了使用金合欢叶提取物合成绿色且价格合理的银纳米颗粒，该提取物既可以作为封端剂，也可以作为还原剂。使用紫外-可见（UV-visible）和扫描电子显微镜（SEM）分析来确定所制备的AgNPs的光学传感和形态。用紫外可见光谱和肉眼研究了Hg2+离子的比色和光学传感。此外，SEM分析表明，提取物的体积对形貌没有显著影响，除了尺寸。比色和光感测研究表明，合成的AgNPs表现出良好的响应，具有特异性对有毒Hg2+离子的比色和感光活性。关键词：绿色合成，AgNPs，光学传感器，超声波法公牛。化学。Soc.Ethiop。2023,37（5），1287-1298.DOI:https://dx.doi.org/10.4314/bcse.v37i5.19

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来源期刊

Bulletin of the Chemical Society of Ethiopia 化学-化学综合

CiteScore

2.20

自引率

8.30%

发文量

113

审稿时长

6-12 weeks

期刊介绍： The Bulletin of the Chemical Society of Ethiopia (BCSE) is a triannual publication of the Chemical Society of Ethiopia. The BCSE is an open access and peer reviewed journal. The BCSE invites contributions in any field of basic and applied chemistry.