Work

Optical Properties of S-doped and S, N Co-doped Graphene Quantum Dots and Application

Year: 2024

Type: article

Abstract: In recent years, carbon-based quantum dots, including carbon quantum dots (CQDs) and graphene quantum dots (GQDs), have been widely researched as new alternatives to conventional antibacterial agents. The structural characteristics and properties of the materials can also be tuned and controlled by changing the shape and size of the GQDs. Effective doping with heteroatoms can also tune the optical, electronic and electrochemical properties, etc., of GQDs. In this report, we study and synthesize sulfur (S)-doped graphene quantum dots and sulfur (S), nitrogen (N)-co-doped-graphene quantum dots using a simple method that requires minimal energy and is environmentally friendly. By controlling the absorption and luminescence spectra in the desired wavelength range, S, N-GQDs can easily be applied as biocides for common bacteria such as E. coli and S. aureus, also presented in this report.

Source: VNU Journal of Science Natural Sciences and Technology

DOI: 10.25073/2588-1140/vnunst.5757

Authors: Pham Thu Nga, Trinh Thi Hue, Nguyen Thi Mai Huong, Phan Xuan Thien, Le Xuan Hung

Institutions: Duy Tan University, Viện Vật lý, Vietnam Academy of Science and Technology

Language: English

Topic: Carbon and Quantum Dots Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funder: National Foundation for Science and Technology Development

Award: Chế tạo các chấm lượng tử graphen pha tạp được chức năng hóa và nghiên cứu các tính chất quang và tính chất kháng khuẩn của chúng, nhằm định hướng ứng dụng làm tác nhân chống nhiễm khuẩn trong y-sinh