Abstract
Highly fluorescent ZnS-encapsulated flexible nanocellulose synthesised by a two-step hydrothermal route has been reported. The structural studies revealed the hexagonal wurtzite (WZ) ZnS encapsulation in the flexible nanocellulose. Bright ring spot pattern in the selected area electron diffraction observed in the nanocomposite. The crystal size of ZnS5, ZnS10 and ZnS20 agrees with the TEM analysis. The positive slope for samples ZnS5 & ZnS20 and the negative slope for ZnS10 imply the presence of tensile strain and compressive strain, respectively, attributed to lattice distortion. Depending on the density of free sites or defects on the surface of the particles and crystallinity, the luminescence is higher for the ZnS10 and reduced for the other nanocomposites. The maximum UV absorption (290–310 nm) corresponds to the quantum confinement effect of semiconductor NPs and is extremely photoactive in the UV region.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
