A simple and cost effective green synthesis (Bio-Assisted) method was used to prepare Potassium doped ferric sulphide nanoparticles. The FTIR spectrum of potassium doped ferric sulphide shows characteristic peak at 617.2 cm-1 indicating M-O bond and shows the presence of K and Fe. The XRD analysis revealed the crystalline nature of the NPs. The average crystallite size was found to be 7.02 nm. The observed FESEM images showed the agglomeration of nanoparticles and are sponge like structure. The study revealed that potassium doped ferric sulphide nanoparticles could be used for high yield in agriculture.

Herein, Ferric sulphide nanoparticles were prepared by co-precipitation (green synthesis) method.Structural study (XRD) confirms the crystalline nature of prepared Ferric sulphide nanoparticles. The crystallite size was estimated and it was found to ~2.0 nm. The surface morphology of the Fe2S3 nanoparticles shows the agglomeration and is sponge and dried algae like structure. EDS analysis reveals the presence of Fe, S, O and C elements in the prepared Ferric sulphide nanoparticles. FTIR spectrum of Ferric sulphide shows the characteristic peaks that confirms the presence of Fe and S in the sample. Moreover, the plant growth study proves that Ferric sulphide nanoparticles could be used as a fertilizer to enhance the agricultural production.

Cadmium Sulfide nanoparticles were prepared by a simple and cost effective precipitation method. Xray analysis revealed broad diffraction peaks indicating that the particles are of very small size. The prominent broad peaks at 2θ values of 26.48°, 43.90°, and 51.91°, which could be indexed to the (002), (110) and (112) direction of the hexagonal phase of CdS. Optical studies showed maximum absorbance in the UV region but minimum absorbance in the VIS-NIR regions make it an excellent material for screening off UV portion of electromagnetic spectrum in UV filters and sensors.