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- Synthesis and Photo Catalytic Activity of 10 wt%, 20 wt%Li-TiO2 Composite Powders
- Hyeong-Chul Kim, Jae-Kil Han
- J Korean Powder Metall Inst. 2016;23(1):33-37. Published online February 1, 2016
- DOI: https://doi.org/10.4150/KPMI.2016.23.1.33
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- 3 Citations
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Abstract
PDF 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.
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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
- Refractory Metal Oxide–Doped Titanate Nanotubes: Synthesis and Photocatalytic Activity under UV/Visible Light Range
- [Korean]
- Microstructure and Synthesis of Ag Spot-coated Cu Nanopowders by Hydrothermal-attachment Method using Ag Colloid
- Hyeong-Chul Kim, Jae-Kil Han
- J Korean Powder Metall Inst. 2011;18(6):546-551.
- DOI: https://doi.org/10.4150/KPMI.2011.18.6.546
- 383 View
- 0 Download
- 2 Citations
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Abstract
PDF
- Ag spot-coated Cu nanopowders were synthesized by a hydrothermal-attachment method (HA) using oleic acid capped Ag hydrosol. Cu nano powders were synthesized by pulsed wire exploding method using 0.4 mm in diameter of Cu wire (purity 99.9%). Synthesized Cu nano powders are seen with comparatively spherical shape having range in 50 nm to 150 nm in diameter. The oleic acid capped Ag hydrosol was synthesized by the precipitation-redispersion method. Oleic acid capped Ag nano particles showed the narrow size distribution and their particle size were less than 20 nm in diameter. In the case of nano Ag-spot coated Cu powders, nanosized Ag particles were adhered in the copper surface by HAA method. The components of C, O and Ag were distributed on the surface of copper powder.
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Citations
Citations to this article as recorded by- Synthesis and visible light photocatalytic activity of Ag spot-coated TiO2–60 wt% SrO composite powders
Hyeong-Chul Kim, Jae-Kil Han
Research on Chemical Intermediates.2014; 40(7): 2431. CrossRef - Microstructure and Synthesis of Nano Palladium Spot Coated Activated Carbon Powders by Hydrothermal Attachment Method
Hyeong Chul Kim, Jae Kil Han
Journal of Korean Powder Metallurgy Institute.2012; 19(6): 424. CrossRef
- Synthesis and visible light photocatalytic activity of Ag spot-coated TiO2–60 wt% SrO composite powders
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