Facile synthesis of nano-sized CuFe2S3: morphology and diverse functional tuning and crystal growth mechanism exploring

Abstract

Ternary chalcogenide compounds are such promising and have been used for much practical applications. As a sort of these compounds, cubanite (CuFe2S3) possess some unique properties which can be used in different fields. In our study, we developed a facile one pot synthesis of CuFe2S3 nanocrystals (NCs) at a low reaction temperature, and achieved a morphology and phase composition tuning of the NCs through changing a variety of precursors and surfactants, meanwhile improved their magnetism and optical properties. Eventually, well-ordered and ‘nano-brick’ like CuFe2S3 NCs were obtained and showed best magnetism and near-infrared fluorescence properties. Furthermore, the NCs were proved with good biocompatibility and possibility for cell labeling. This kind of materials with lower toxicity and potential of magnetic is bound to remedy the defects of photoluminescence quantum dots (QDs) and be with higher potential in the field of biological diagnosis and multi-functional system construction.

Biocompatibility of conformal silicon carbide on carbon nanowall scaffolds

“…Zhang et al reported culturing osteoblast cells on titania nanotubes 38) and varied the size of the titania nanotubes from 50 to 400 nm and compared calcification on a flat titanium surface. In nanotubes approximately 170 nm in diameter, cells adhered most fastest, and the mineralization of the cellular calcium was highest.…”

Colloid Chemical Approach for Fabricating Cu–Fe–S Nanobulk Thermoelectric Materials by Blending Cu2S and FeS Nanoparticles as Building Blocks

“…Cu–Fe–S semiconductors, including CuFeS 2 (chalcopyrite, cp ), − CuFe 2 S 3 (isocubanite, cb ), − and Cu 5 FeS 4 (bornite, bn ), − are earth-abundant low-toxicity thermoelectric materials. In addition, the Cu–Fe–S system can be either a p- or n-type semiconductor depending on the composition. ,, Despite their promising properties, such as low band gap energies and relatively high S values, the ZT values of Cu–Fe–S semiconductors are not very high, mainly because of their low PF values (0.38 mW mK –2 at 625 K for cp , 0.48 mW mK –2 at 663 K for cb , and 0.23 mW mK –2 at 663 K for bn ).…”