Rapat Koordinasi Puslak-SPMI

Synthesis of nano crystal TiO2 with modified commercial powder of TiO2

Syamsu1, D Darwis2 and A Maddu3

Published under licence by IOP Publishing Ltd

Journal of Physics: Conference Series, Volume 1242, conference 1

Abstract. Nano crystal TiO2 was synthesized by modifying the TiO2 powder (Merck). The powder of TiO2 was stirred in 1M HCl solution for 2 hours, and then added ammonia solution (NH4OH). The suspension of TiO2 is spread evenly over the substrate glass and then heated to a different temperature. The structure and optical properties of TiO2 layer were examined using XRD to see the TiO2 crystal structure and size in heating temperature threatment. The optical properties of TiO2 observation showing the absorption band edge shifted to the shorter wavelength, it means the energy of band gap increases to heating temperature..

Introduction of nanoparticle magnetic development as transfer medium at mung bean seeds (virginia radiata l.) using soaking method

Syamsu1*, S Saehana1, I W Darmadi1, M Zaky1, S Arjo2, M N Hidayat2, N Suminten2, 

B Nurjanati3, and S Husain4

Journal of Physics: Conference Series

 Abstract

It has been done research about a nanoparticle magnetic distribution into seeds of Vigna radiata L. seeds and the growth of their sprouts including their roots and stems using the soaking method. their nanoparticle magnetics are the synthesis result of natural iron sands using co-precipitation method. The truth of the nanoparticle magnetic has been shown trough the function of bonding groups at wavenumber 698 cm-1. This research has been done as a foundation for further development in the genetical modification. Next, the experimental results show a good diffusion in the seeds, so that, along the development, the nanoparticle magnetic could be found in the roots and stems. Therefore, this research study is possible to be advanced to control plant growths and their genetical modifications.