The effect of TSC on photochemical synthesis of anisotropic silver nanoparticles under green LED irradiation

Mai Ngoc Tuan Anh; Nguyen Cong Danh; Vo Nhi Kieu; Ngo Vo Ke Thanh; Nguyen Thi Phuong Phong; Nguyen Dai Hai

doi:10.51316/jca.2021.142

Authors

Mai Ngoc Tuan Anh Research laboratories of Saigon hi-tech park
Nguyen Cong Danh Research laboratories of Saigon hi-tech park
Vo Nhi Kieu Research laboratories of Saigon hi-tech park
Ngo Vo Ke Thanh Research laboratories of Saigon hi-tech park
Nguyen Thi Phuong Phong University of Science - VNUHCM
Nguyen Dai Hai Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh city, Vietnam

DOI:

https://doi.org/10.51316/jca.2021.142

Keywords:

anisotropic silver nanoparticles, LED, photochemical synthesis, trisodium citrate

Abstract

In this study, anisotrpic silver nanoparticles (ASNPs) were fabricated by photochemical method under green LED irradiation. The formation of ASNPs at various trisodium citrate (TSC) amounts was investigated by employing different characterization methods such as ultraviolet–visible spectroscopy (UV–Vis), transmission electron microscopy (TEM) and X-ray diffractometer (XRD). It was found that ASNPs could not form without TSC. However, TSC served capping of (111) faces of nanoparticles and also reduced the Ag⁺ ions to Ag⁰under LED irradiation, thus promoting shape transformation of ASNPs.

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