Biosynthesis of eco‐friendly and recyclable Pd/LDHs catalyst using the withered leaves extract for Suzuki coupling reaction. Issue 1 (3rd January 2020)

• Record Type: Journal Article
• Authors: Fan, Xizheng; Zheng, Yanyan
• Is Part Of: IET nanobiotechnology. Volume 14:Issue 1(2020)
• Page Start: 59
• Page End: 65
• Publication Date: 2020-01-03
• Subjects: nanoparticles -- reduction (chemical) -- chemical engineering -- catalysts -- X‐ray diffraction -- recycling -- catalysis -- organic compounds -- palladium -- particle size; Suzuki reaction -- reducing agent -- hydrotalcite‐supported palladium catalyst biosynthesis process -- environmentally friendly material -- withered leaves extract -- dispersant agent -- chemical synthesis method -- polyvinylpyrrolidone -- ascorbic acid -- nanoparticle size -- 4‐bromotoluene -- phenylboronic acid -- recycling test -- temperature 60.0 degC -- size 4.3 nm -- size 3.6 nm -- time 30.0 min -- Pd; Biotechnology -- Periodicals; Nanotechnology -- Periodicals; 660.6
• DOI: 10.1049/iet-nbt.2019.0188
• Languages: English
• ISSNs: 1751-8741

Abstract

Abstract : The hydrotalcite‐supported palladium (Pd) catalyst is prepared with a green and environmentally friendly route, introducing the extract of withered leaves as a dispersant and reducing agent (Pd/LDHs‐B). Compared with the as‐prepared catalyst (Pd/LDHs‐P with the average diameter of 4.3 nm) using a chemical synthesis method with polyvinylpyrrolidone as a dispersant and ascorbic acid (Vc) as a reductant, the results indicate that the size of Pd nanoparticles in Pd/LDHs‐B is smaller (ca. 3.6 nm). The Pd‐LHDs‐B (0.5 mmol‰) exhibits higher activity (98.66%) than Pd/LDHs‐P (98.19%) in the Suzuki reaction of 4‐bromotoluene and phenylboronic acid at 60°C for 30 min. Also, the reusability of Pd/LDHs‐B is confirmed by recycling tests without a significant decrease in activity.