- Synthesis and Photo Catalytic Activity of 10 wt%, 20 wt%Li-TiO2 Composite Powders
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Hyeong-Chul Kim, Jae-Kil Han
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J Korean Powder Metall Inst. 2016;23(1):33-37. Published online February 1, 2016
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DOI: https://doi.org/10.4150/KPMI.2016.23.1.33
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10 wt.% and 20 wt.%Li-TiO2 composite powders are synthesized by a sol-gel method using titanium isopropoxide and Li2CO3 as precursors. The as-received amorphous 10 wt.%Li-TiO2 composite powders crystallize into the anatase-type crystal structure upon calcination at 450°C, which then changes to the rutile phase at 750°C. The asreceived 20 wt%Li-TiO2 composite powders, on the other hand, crystallize into the anatase-type structure. As the calcination temperature increases, the anatase TiO2 phase gets transformed to the LiTiO2 phase. The peaks for the samples obtained after calcination at 900°C mainly exhibit the LiTiO2 and Li2TiO3 phases. For a comparison of the photocatalytic activity, 10 wt.% and 20 wt.% Li-TiO2 composite powders calcined at 450°C, 600°C, and 750°C are used. The 20 wt.%Li-TiO2 composite powders calcined at 600°C show excellent efficiency for the removal of methylorange. -
Citations
Citations to this article as recorded by  - Refractory Metal Oxide–Doped Titanate Nanotubes: Synthesis and Photocatalytic Activity under UV/Visible Light Range
Min-Sang Kim, Hyun-Joo Choi, Tohru Sekino, Young-Do Kim, Se-Hoon Kim
Catalysts.2021; 11(8): 987. CrossRef - Photocatalytic activity of rutile TiO2 powders coupled with anatase TiO2 nanoparticles using surfactant
Jong Min Byun, Chun Woong Park, Young In Kim, Young Do Kim
journal of Korean Powder Metallurgy Institute.2018; 25(3): 257. CrossRef - Synthesis and characterization of nitrogen-doped TiO 2 coatings on reduced graphene oxide for enhancing the visible light photocatalytic activity
Yifan Zhang, Hye Mee Yang, Soo-Jin Park
Current Applied Physics.2018; 18(2): 163. CrossRef
- Microstructure and Sintering Behavior of Injection Molded Fe Sintered Body Using Rapid Thermal Heating Process
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Ki-Hyun Kim, Jae-Kil Han, Ji-Hun Yu, Chul-Jin Choi, Byong-Taek Lee
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J Korean Powder Metall Inst. 2004;11(6):528-534.
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DOI: https://doi.org/10.4150/KPMI.2004.11.6.528
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- Using the nano Fe powders having 50 nm in diameter, Fe compact bodies were fabricated by injec-tion molding process. The relationship between microstructure and material properties depending on the volume ratio of powder/binder and sintering temperature were characterized by SEM, TEM techniques. In the compact body with the volume percentage ratio of 45(Fe powder) : 55(binder), which was sintered at 700°C, the relative density was about 97%, and the values of volume shrinkage and hardness were about 66.3% and 242.0 Hv, respec-tively. Using the composition of 50(Fe powder) : 50(binder) and sintered at 700°C, the values of relative density, volume shrinkage and hardness of Fe sintered bodies were 73.3%,;47.6% and 152.8 Hv, respectively. They showed brittle fracture mode due to the porous and fine microstructure.
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