Role of alkan-1-ol solvents in the synthesis of yellow luminescent carbon quantum dots (CQDs): van der Waals force-caused aggregation and agglomeration

Abstract

Carbon quantum dots (CQDs; luminescent carbon nanoparticles, size < 10 nm) have attracted much attention with respect to their eco-friendliness and multi-functionality.

Synthesis, Purification, and Characterization of Carbon Dots from Non-Activated and Activated Pyrolytic Carbon Black

“…Overall, spherical-shaped nanoparticles with sizes in the range of 10–50 nm were observed. TEM images of CDs with particle sizes bigger than 10 nm have been also reported in the literature [ 64 , 65 ], which have been mainly attributed to agglomeration. Due to the small size of carbon dots, they tend to agglomerate in the solid state.…”

Highly Sensitive Electrochemical Sensor for Nitrite Based on Polyethyleneimine and Carbon Quantum Dots Composite

“…(24) Eksin et al developed CQD-modified disposable pencil graphite electrodes for electrochemical monitoring of the drug-DNA interaction. (25) A hybrid nanocomposite of CQDs/Fe 3 O 4 nanoparticles was prepared and applied for the detection of uric acid in human urine samples by Abbas et al (26) However, the agglomeration (27) and relatively low electrochemical activity (7,28) of CQDs limit their further application. Surface functionalization, (29,30) heteroatom doping, and the formation of composites with other materials with superior properties (31) have been demonstrated to be efficient ways to improve the properties of CQDs.…”

Rapid deposition of (K,Na)NbO3thick films using microwave-assisted hydrothermal technique

“…The MW heating have been often utilized for some chemical processes, e.g. syntheses of organic molecules, 32) semiconductor quantum dots 33,34) as well as ceramic powders or nanocrystals. 35,36) The present manuscript reports hydrothermal deposition of epitaxial KNbO 3 -NaNbO 3 (KNN) film on single crystal substrates with the assistance of MW heating.…”