Nanopowders of titanium dioxide incorporating the transition metal element(s) were synthesized by flame synthesis method. Single element among Fe(III), Cr(III), and Zn(II) was doped into the interior of crystal; bimetal doping of Fe and Zn was also made. The characteristics of transition-metal-doped nanopowders in the particle feature, crystallography and electronic structures were determined with various analytical tools. The chemical bond of Fe-O-Zn was confirmed to exist in the bimetal-doped nanopowders incorporating Fe-Zn. The transition element incorporated in the was attributed to affect both Ti 3d orbital and O 2p orbital by NEXAFS measurement. The bimetal-doped nanopowder showed light absorption over more wide wavelength range than the single-doped nanopowders

• 박훈 | Park Hoon
• 지현석 | Jie Hyunseock
• 이승용 | Lee Seung-Yong
• 안재평 | Ahn Jae-Pyoung
• 이덕열 | Lee Dok-Yol
• 박종구 | Park Jong-Ku