Photocatalytic and antioxidant potential of silver nanoparticles biosynthesized using Artemisia stelleriana leaf extracts

IF 1.6 Q3 WATER RESOURCES
Juhi Puthukulangara Jaison, Joseph Kadanthottu Sebastian
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引用次数: 0

Abstract

Abstract The antioxidant and photocatalytic activity of Artemisia stelleriana-based silver nanoparticles (AS-AgNPs) was investigated in this study. Microscopic, X-ray diffraction and spectroscopic studies were used to characterize the synthesized AS-AgNPs. UV–visible spectrophotometric examination revealed a peak at 425 nm. The phytocompounds involved in the transformation of silver ions into AS-AgNPs were confirmed using Fourier-transform infrared spectroscopy analysis. The crystalline nature of the AS-AgNPs was verified using the X-ray powder diffraction technique. Spherical-shaped AS-AgNPs with a size of 22.7 nm were proved using field emission scanning electron microscopy. The AS-AgNPs were top-notch photocatalysts for the degradation of Reactive Blue-222A (RB-222A) and Reactive Blue-220 (RB-220) dyes. After 80 min of UV light exposure, AS-AgNPs degraded RB-222A and RB-220 dyes by 94.6 and 90.8%, respectively. The phytotoxicity investigation in Vigna radiata and Artemia salina indicated that the hazardous dye can be degraded into innocuous chemicals by AS-AgNPs. The results suggest that AS-AgNPs are an excellent antioxidant and photocatalyst for the degradation of synthetic dyes.
紫花蒿叶提取物生物合成纳米银的光催化和抗氧化潜力
摘要本文研究了青蒿基银纳米粒子(AS-AgNPs)的抗氧化和光催化活性。采用显微、x射线衍射和光谱学研究对合成的AS-AgNPs进行了表征。紫外可见分光光度法在425 nm处发现一个峰。利用傅里叶变换红外光谱分析确定了参与银离子转化为AS-AgNPs的植物化合物。利用x射线粉末衍射技术验证了AS-AgNPs的结晶性质。利用场发射扫描电镜证实了尺寸为22.7 nm的球形AS-AgNPs。AS-AgNPs是降解活性蓝- 222a (RB-222A)和活性蓝-220 (RB-220)染料的最佳光催化剂。紫外线照射80 min后,AS-AgNPs对RB-222A和RB-220染料的降解率分别为94.6%和90.8%。植物毒性研究表明,AS-AgNPs可将有害染料降解为无害化学物质。结果表明,AS-AgNPs是一种优良的抗氧化剂和降解合成染料的光催化剂。
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来源期刊
CiteScore
2.30
自引率
6.20%
发文量
136
审稿时长
14 weeks
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