Work

Carbon quantum dots with honeycomb structure: a novel synthesis approach utilizing cigarette smoke precursors

Year: 2024

Type: article

Abstract: This study presents a novel approach to synthesizing honeycomb carbon quantum dots (CQDs) from cigarette smoke by a hydrothermal process. A comprehensive characterization of these CQDs, conducted through high-resolution transmission electron microscopy (HRTEM), showcases their unique honeycomb structure, with an average particle size of 6.3 nm. Photoluminescence (PL) in CQDs is a captivating phenomenon where these nanoscale carbon structures emit strong blue luminescence at 461 nm upon exposure to ultraviolet light, with their excitation peak occurring at 380 nm. Fourier Transform Infrared (FTIR) analysis also identifies specific functional groups within the CQDs, offering valuable insights into the mechanisms governing their photoluminescence. Analysis of excitation spectra indicates the presence of both aromatic C=C bonds at 254 nm and C–O bonds from 280 to 420 nm.

Source: Scientific Reports

DOI: 10.1038/s41598-024-52106-3

Authors: Setianto Setianto, Liu Kin Men, Ayi Bahtiar, Camellia Panatarani, I Made Joni

Institution: Padjadjaran University

Language: English

Topic: Carbon and Quantum Dots Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,590

Funder: Universitas Padjadjaran