Gold nanoparticles supported on Al2O3 using Tabebuia aurea leaf extract and catalytic properties for methylene blue reduction. Issue 1 (February 2020)

• Record Type: Journal Article
• Authors: Maulidya, A; Yulizar, Y; Utari, T; Apriandanu, D O B
• Is Part Of: IOP conference series. Volume 763:Issue 1(2020)
• Publication Date: 2020-02
• Subjects: Al2O3/AuNPs -- Tabebuia aurea -- catalytic activity -- methylene blue reduction; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/763/1/012049
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: In this research, we reported a cost-effective and an environmentally friendly technique for synthesis of gold nanoparticles supported on alumina (Al2 O3 /AuNPs) using Tabebuia aurea leaf extract (TAE) as non-toxic reducing agent, efficient stabilizer, and weak base source without adding any surfactants. Al2 O3 /AuNPs was characterized using various techniques including UV-Visible Spectrophotometer, Fourier-transform Infrared (FT-IR) spectroscopy, X-Ray diffraction (XRD), and Particle Size Analyzer (PSA). AuNPs was successfully synthesized using HAuCl4 as precursor. The characterization of UV-Vis Spectrophotometer shows that AuNPs colloidal was formed at 0.15 % TAE. FTIR characterization of Al2 O3 shows Al-OH band at 1505 cm −1 and Al-O band at 680 cm −1 . Phase of Al2 O3 was amorphous confirmed by XRD. The particle size distribution average of Al2 O3 /AuNPs was about 43 nm. The reduction percentage of methylene blue using Al2 O3 /AuNPs catalyst was 70.41 % for 120 min.