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Scalable Electrochemical Synthesis of Novel Biogenic Silver Nanoparticles and Its Application to High-Sensitive Detection of 4-Nitrophenol in Aqueous System

Authors: Van-Tuan Hoang; Ngo Xuan Dinh; Tuyet Nhung Pham; Tran Vinh Hoang; Pham Anh Tuan; Tran Quang Huy; Anh-Tuan Le; Advisor: -; Co-Author: - (2021)

This study reports a scalable green electrochemical synthesis of novel biogenic silver nanoparticles colloid (biogenic AgNPs) in large scale up to 5 liters using the bulk silver bar and the green tea leaves (Camellia sinensis) extract (GTE) as reducing ag

Novel Eco-Friendly Synthesis of Biosilver Nanoparticles as a Colorimetric Probe for Highly Selective Detection of Fe (III) Ions in Aqueous Solution

Authors: Nguyen Le Nhat Trang; Van-Tuan Hoang; Ngo Xuan Dinh; Le Thi Tam; Van Phan Le; Dong Thi Linh; Doan Manh Cuong; Nguyen Tien Khi; Nguyen Ha Anh; Pham Tuyet Nhung; Anh-Tuan Le; Advisor: -; Co-Author: - (2021)

In this work, an eco-friendly approach for the synthesis of biogenic silver nanoparticles (bio-AgNPs) using botanical extracts in combination with an electrochemical process was carried out. We employed three types of plant extracts, including green tea leaf (GTE), grapefruit peel (GP), and mangosteen peel (MP) extracts to successfully synthesize the bio-AgNPs and optimized the experimental conditions aiming to get the highest synthetic yield. The formation of bio-AgNPs was monitored by UV-Vis spectroscopy via a surface plasmon resonance (SPR) band at about 420–430 nm. Transmission electron microscope (TEM) showed their spherical shape with the size range within 23–55 nm. While X-ray diffraction (XRD) analysis described in detail the crystalline structure of the bio-AgNPs with a fac...

Functionalized silver nanoparticles-based efficient colorimetric platform: Effects of surface capping agents on the sensing response of thiram pesticide in environmental water samples

Authors: Van-Tuan Hoang; Ngo Xuan Dinh; Nguyen Le Nhat Trang; Nguyen Tien Khi; Nguyen Van Quy; Pham Anh Tuan; Doan Quang Tri; Le Hong Thang; Tran Quang Huy; Anh-Tuan Le; Advisor: -; Co-Author: - (2021)

An efficient colorimetric probe based on surface-functionalized silver nanoparticles (AgNPs) was prepared for sensitive thiram pesticide detection in water samples. The influence of various surface capping agents including polyhexamethylene biguanide hydr