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Preparation and Photocatalytic Study of Nanoscale Sulfide Materials

Author: LiWenGe
Tutor: DaiJie
School: Suzhou University
Course: Inorganic Chemistry
Keywords: Sulfide Nanomaterials Ligand compound N-propyl diamine Diethylenetriamine Photocatalytic
CLC: TQ426
Type: Master's thesis
Year: 2002
Downloads: 296
Quote: 0
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Abstract


This paper studies the preparation of semiconductor nano- sulfide and organic - inorganic hybrid chalcogenide material and several new method . First trithio sodium carbonate as the main raw material, synthesized the precursor material CDCS 3 , [ Cd ( en ) 3 ) ] CS is 3 and PbCS 3 . These precursors decompose in the appropriate temperature and pressure , that too CdS powder PBS nano . By X-ray powder diffraction , transmission electron microscopy , scanning electron microscopy, the product of the composition , size , morphology characterization . The results show that a : CdS nanoparticles uniform particle size distribution of the hexagonal crystal form, grain size of approximately 20 ; PbS nanoparticles of uniform particle size distribution of the cubic crystal form , particle size of approximately 20 nm . The method is economical , simple, product no obvious agglomeration good application value . In addition, the use of the solvothermal synthesis techniques , zinc acetate and elemental sulfur as a raw material in diethylene triamine or n - propyl diamine in a solvent to prepare a new sulphide material modified by an organic amine : [ ( ZnS ) , 2 NH 2 (CH) 3 NH 2 ] and [ ( ZnS ) < sub > 2.5 (NH 2 CH 2 CH) 2 NH 2 ] ∞ < / sub > . The product is insoluble in water and various organic solvents , is a kind of high polymer complexes and infrared , X - ray powder diffraction , Fourier transform Raman , transmission electron microscopy , thermal gravimetric analysis and elemental analysis were characterized . The experiments show that the class of new materials reactive violet X - 2R better photocatalytic degradation of the dye , catalyst by repeated use , the catalytic efficiency is essentially the same .

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CLC: > Industrial Technology > Chemical Industry > Reagents and the production of pure chemicals > Catalyst ( catalyst )
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