The Environment-friendly Convenient Synthesis Of Nano/Micro Inorganic Materials Using Organic Molecule

In the early 1990s,the conception of green chemistry was brought forward which is different from the traditional pollution control,and green chemistry has been an important topic in chemistry field gradually since then.Over the last decade,the conception,aims,basic principles and research areas about it are more and more clear,and they are forming a new research area of multi-disciplinary cross preliminarily.As a research area of multi-disciplinary cross,it is supposed to be studied in depth.Calcium carbonate and carbon were prepared directly in this article,the method of that used a way of green environmental protection through biological egg white and polysaccharides organic, and it paves the way for exploring various simple,mild,environmental protection and low power reaction system.The main points can be summarized as followed:1.Micro-sized vaterite was prepared by the reaction of sodium carbonate with calcium chloride in the presence of egg white protein.The content of vaterite in the products is about 94%.Optimum preparation conditions of the metastable phase CaCO₃ are 45℃and 24h.The products were characterized by XRD,SEM and FT-IR.The experimental conditions and mechanism were discussed.2.The pure carbon was prepared,the method of which used dehydration of oil of vitriol and moved H and O by two to one ratio in the organic whose molecular formula called C_mH_2nO_n.For controlling the reaction temperature,the oil of vitriol was diluted using deionized water firstly,then as the organic of a reactant was added in the dilute sulfuric acid obtained,and then was stirred and dissolved,then it was water-bath heated in order to evaporate constinuously for the water in the solution,make the concentration of sulfuric acid larger,and dehydrate of organic matter until the solution completely dark.The different organic of cyclodextrin and agar powder were selected for dehydration,then the amorphous carbon of porous and circle pie were obtained respectively and basic particle size is about 50nm.The products were characterized by powder X-ray diffraction, Scanning electron microscopy,fourier transform infrared spectroscopy,laser Raman spectroscopy and so on.Finally reaction conditions were systematically studied and reaction mechanism was explored.