Spectra Study On The Interaction Of Saccharide And Selenium Nanoparticles In Liquid System

Nanoparticles materials are wildly used in the field of chemistry, biology, medicine, optics, electron, magnetism, et al due to their properties of optics, mechanics, calorifics, magnetics, mechanism, electric, acoustics, which bring great opportunities to multiply subjects.Selenium is not only an important semiconductor material, which has eminent and optics properties. It is used in Selenium rectifier, solar battery, Selenium drum, et al; but also a necessary trace element for human body. Nanoparticles Selenium which is first studied by our country's scientist possess superiority photoelectric performance, higher biological activity and also low toxicity, therefore the preparation of nanoparticles Selenium are becoming an important research direction.In the field of nano-materials preparation, the problem that their quick deposit, disorder decentralization and chaos sharp is people now pursuing and resolving. Researches show that modifiers could prevent nano-materials particulate quick deposit effectively, separate the particulate evenly and modulation their special sharp.Saccharides are not only main energy sources of human body and possess some important physiological functions. Saccharides are also stabilization solution, especially in the field of preservation, which affect the nucleation, pullulation and modulation of nano- particulate.In this paper, monosaccharide(glucose), oligosaccharide(sucrose), polysaccharide(from Eucheuma striatum) is used as a modulation solution in synthesizing Selenium nanoparticles which were produced with the reduction of selenium acid by ascorbic acid with the method of resonance rayleigh scattering(RRS), transmission electron microscope(TEM) and lacer ray scattering(LRS). Main content included: i. the mechanism study of sucrose-nano-Se⁰ in liquid1 system, results showed that sucrose solution modulated the assemble of nanometer Se⁰ particles and stabilized the Se⁰ particles in liquid phase. From the concentration of 1.07μ mol ·L^-1 to 42.8μ mol ·L^-1, in the presence of 1.0% sucrose solution, the major distribution range of Se⁰ diameter was 20～80nm. Furthermore, the nanometer Se⁰ sol-gel could be preserved stably in sucrose solution at least 2 months between 2～10℃; ii .the mechanism modulation comparison of...