Abstract
Sorghum vulgare seed heads (SVSH) as agricultural waste have now become a low cost raw material for nanosilica preparation, because it contains silica. The objective of the present work is to establish a procedure to prepare pure nanosilica from SVSH. In first step the SVSH was calcinated at 700°C to reduce the organic contents. After calcination, the ash was posted to three kinds of chemical treatments that are i) acid mixture, ii) 3% hydrochloric acid and iii) sodium hydroxide. Then the prepared nanosilica was characterized by High Resolution Scanning Electron Microscopy (HR-SEM), Energy-Dispersive X-ray Spectroscopy (EDX), Powder X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). The HR-SEM results show the nanostructure of silica. XRD pattern of acid leached SVSH ash formed crystalline nanosilica, whereas nanosilica obtained from precipitation method was amorphous in nature. The FT-IR spectrum adds evidence indicating the presence of silica.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
