Silver and Gold Nanoparticles from Limnophila rugosa Leaves: Biosynthesis, Characterization, and Catalytic Activity in Reduction of Nitrophenols

Tiến sĩChâu Tấn PhátVan Thuan Le, Ngoc Nhu Quynh Ngu, Thi Dung Nguyen, Van Toan Nguyen, Thi Lan Huong Nguyen, Xuan Thang Cao, Van-Dat Doan

Viện Khoa học Công nghệ Ứng dụng

Thể loại: Bài báo

Sơ lược nội dung

This study describes a simple green method for the synthesis of Limnophila rugosa leaf-extract-capped silver and gold nanoparticles without using any expensive toxic reductant or stabilizer. The noble metal nanoparticles were characterized by Fourier transform infrared (FTIR) microscopy, powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray analysis (EDX), high-resolution transmission electron microscopy (HR-TEM), selected area electron diffraction (SAED), and dynamic light scattering (DLS) method. It has been found that the biosynthesized silver and gold nanoparticles are nearly spherical in shape with a mean particle size distribution of 87.5 nm and 122.8 nm, respectively. XRD and SAED patterns confirmed the crystalline nanostructure of the metal nanoparticles. FTIR spectra revealed the functional groups of biomolecules presented in the extract possibly responsible for reducing metallic ions and stabilizing formed nanoparticles. The biosynthesized metal nanoparticles have potential application in catalysis. Compared to previous reports, Limnophila rugosa leaf-extract-capped silver and gold nanoparticles exhibited a good catalytic activity in the reduction of several derivatives of nitrophenols including 1,4-dinitrobenzene, 2-nitrophenol, 3-nitrophenol, and 4-nitrophenol.

Thông tin chung
Thể loại
Bài báo
Năm xuất bản
Thg5 2021
Ngôn ngữ gốc
Tiếng Anh
Tạp chí công bố
Journal of Nanomaterials
Ấn phẩm số
Vol. 2021
Loại tạp chí
Danh mục ISI/Scopus
Chất lượng

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