Work

A robust synthesis of reverse Au/ZnO core/shell nanostructures with high visible photocatalytic activity of methylene blue dye

Year: 2025

Type: article

Abstract: ions, resulting in the reduction of Au and subsequent ZnO encapsulation. The morphology, structure, optical properties, and photocatalytic activity of the resulting nanostructures were systematically characterized. The synthesized particles exhibited core/shell nanostructure with diameters of 30-50 nm, comprising Au cores (25-40 nm) and ZnO shells (5-10 nm). Under visible light irradiation, the Au/ZnO nanostructures achieved up to 98.9% MB degradation within 90 min. The enhanced photocatalytic performance is attributed to the localized surface plasmon resonance (SPR) of the Au core, which promotes efficient photo-induced electron transfer to the ZnO shell and extends light absorption into the visible range.

Source: RSC Advances

DOI: 10.1039/d5ra03007b

Authors: Nguyen Thi Luyen, Nguyen Xuan Quang, Vuong Thi Kim Oanh, Nguyen Thi Thu Thuy, Tran Quang Huy

Institutions: Thai Nguyen University, Trường Đại học Khoa học, University Of Transport Technology, Vietnam Academy of Science and Technology, Phenikaa University

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,042

Funder: Trường Đại học PHENIKAA