Preparation and Evaluation of Cross-Linked Chitosan/Silver Sulfide Luminescence Nanocomposites by Using Green Capping Agent Against Some Pathogenic Microbial Strains

2019 ◽  
Vol 27 (10) ◽  
pp. 1038-1044
Author(s):  
Mohammad hasan Moshafi ◽  
Mehdi Ranjbar ◽  
Neda Hedayatifar
2014 ◽  
Vol 49 ◽  
pp. 14-20 ◽  
Author(s):  
Farnosh Tavakoli ◽  
Masoud Salavati-Niasari ◽  
Davood Ghanbari ◽  
Kamal Saberyan ◽  
S. Mostafa Hosseinpour-Mashkani

2017 ◽  
Vol 225 ◽  
pp. 290-295 ◽  
Author(s):  
Hamideh Haghjoo ◽  
Fatemeh Sadat Sangsefidi ◽  
Seyed Ali Hashemizadeh ◽  
Masoud Salavati-Niasari

2018 ◽  
Vol 17 (04) ◽  
pp. 1760032
Author(s):  
Sujata Deb ◽  
P. K. Kalita ◽  
P. Datta

ZnS nanostructures are synthesized by a wet chemical route using starch as green capping agent under nitrogen environment. The as-prepared nanostructures are characterized structurally, optically and electrically. X-ray diffraction (XRD) spectra confirm that the zinc sulfide (ZnS) nanoparticles have cubic phase (zinc blende). UV–Vis spectrum of the sample clearly shows that the absorption peak exhibits blue shift compared to their bulk counterpart, which confirms the quantum confinement effect of the nanostructures. Its photoluminescence (PL) spectrum shows near band gap emission at 392[Formula: see text]nm and extrinsic emission at 467[Formula: see text]nm. The particle sizes calculated from XRD and UV studies are in fair agreement with high resolution transmission electron microscopy (HRTEM) results. Starch is found to be a noble capping agent in bringing quantum confinement. The synthesis under nitrogen environment has been observed to produce quality products by reducing the oxide traces. Moreover, the I–V characteristics under dark and illumination show that ZnS can be more suitable as photodetector.


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