Abstract
This article covers the importance of Andean Ajı′/Chilli (Capsicum baccatum L.) mediated synthesis of gold nanoparticles (AuNPs), which favors for green chemistry and escape us from the use of hazardous chemicals. UV–visible spectroscopy was used to monitor the quantitative formation of AuNPs. Further, as synthesized AuNPs were characterized using Transmission electron microscopy, Dynamic Light Scattering, and X-ray diffraction. It produced spherical AuNPs at λmax = 540 nm of average size 23.9 ± 9.7 nm without any aggregation. Ajı′ extract (aq) was the good reducing and capping agent in terms of conversion to Au3+ to AuNPs. The synthesized AuNPs, also enhancing the photocatalytic degradation of methylene blue (>50%, k = 1.9585 × 10−3 min−1) under direct solar light irradiation. In addition, the experimental approach is benign, ecofriendly, and inexpensive for industrial-scale production of nanoparticles using Aji extract as natural bioreductant.
Highlights
Nanotechnology and Nanoscience that deal with features as small as 10−9 m began to enter into mainstream physical sciences and engineering some 20 years ago
We investigated the use of AuNPs for the photocatalytic degradation of methylene blue (MB) without using an additive reducing agent in solar light
The appearance of the purple-pink color indicated the feasibility of a reaction and the formation of AuNPs. This change of solution color may be attributed to the surface plasmon resonance (SPR) of the AuNPs and provided a convenient spectroscopic signature of their formation (Kumar, Smita, & Cumbal, in press; Philip, 2009)
Summary
Nanotechnology and Nanoscience that deal with features as small as 10−9 m began to enter into mainstream physical sciences and engineering some 20 years ago. His research interest is the development of sustainable and ecofriendly technique for natural product extraction, purification and analysis, plant mediated synthesis of nanoparticle and their applications for environmental remediation, active films of organic solar cells, nanomedecine, sensors; natural polymers, peptide chemistry, microwave and ultrasound assisted organic synthesis. He worked as a faculty member in different universities in India, South Korea and published several SCI/SCIE indexed research articles, patents and conference papers. We investigated the use of AuNPs for the photocatalytic degradation of methylene blue (MB) without using an additive reducing agent in solar light
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