Page 18 - CFM_Newsletter_CY22
P. 18

Enhancement on the Structural, Functional, Optical and Morphological Properties
                  of Temperature Treated Silver Sulfide Nanostructures

                                                  1.1                               10
                                                  1.0             Ag 2 S - as - prepared   Ag 2 S as - prepared
                                                                  Ag 2 S - 200°C    8     Ag 2 S 200°C
                                                  0.9             Ag 2 S - 400°C          Ag 2 S 400°C
                                                 Absorbance (a.u.)  0.7            (F(R)hυ) 2 (a.u.)  6 4
                                                  0.8
                                                  0.6
                                                  0.5
                                                  0.4
                                                  0.3                               2
                                                  0.2
                                                  0.1                               0
                                                   1000  1200  1400  1600  1800      0.5  0.6  0.7  0.8  0.9  1.0  1.1  1.2
                                                           Wavelength (nm)                       hυ (eV)
                ❖  Pure  Silver  Sulfide  (Ag S)  were  synthesized  via  co-precipitation  technique  and
                                              2
                    annealed at various temperatures.
                ❖  Structural  aspects,  including  crystallite  size  (41-52  nm)  were  analyzed,  and
                    nanophase was confirmed using the X-ray diffraction technique.
                ❖  Optical  characterization  of  as-synthesized  samples  was  analyzed  using  UV
                                              o
                    techniques, and the 200  C and 400  C.
                                                           o



                   Improving the Multifunctional Attributes and Photocatalytic Dye Degradation of MB
                   and RhB Dye - A Comparative Scrutiny















                    ❖ The energy band gap decreased with increasing annealing temperatures.
                    ❖ Rapid dye degradation was observed with a maximum degradation rate.





                   Ferrites    for   energy     storage               Resistive  switching  in  perovskite
                   supercapacitor applications                        oxide heterostructures


                                         Cyclic                  Schematic
                                         Voltammetry:            structure of the
                                         Redox pseudo            device for
                                         capacitance at          resistive
                                         operating voltage       switching device
                                         of -1.0 to 0.8V.        with junction
                                                                              2
                                                                 area 100 µm




        CFM Newsletter Jan. – Dec. 2022                         18                                    Vol – 2
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