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Title: One-pot solvothermal synthesis of dual-phase titanate/titania nanoparticles and their adsorption and photocatalytic performances
Authors: Cheng, Yu Hua
Gong, Dangguo
Tang, Yuxin
Ho, Jeffery Weng Chye
Tay, Yee Yan
Lau, Wei Siew
Wijaya, Olivia
Lim, Jiexiang
Chen, Zhong
Keywords: DRNTU::Engineering::Materials
Issue Date: 2013
Source: Cheng, Y. H., Gong, D., Tang, Y., Ho, J. W. C., Tay, Y. Y., Lau, W. S., et al. (2014). One-pot solvothermal synthesis of dual-phase titanate/titania nanoparticles and their adsorption and photocatalytic performances. Journal of solid state chemistry, 214, 67-73.
Series/Report no.: Journal of solid state chemistry
Abstract: Dual phase titanate/titania nanoparticles undergo phase transformation gradually with the increase of solvothermal synthesis temperature from 100 °C to 200 °C, and eventually are fully transformed into anatase TiO2. The crystal structure change results in the changes of optical absorption, sensitizer/dopant formation and surface area of the materials which finally affect the overall dye removal ability. Reactions under dark and light have been conducted to distinguish the contributions of surface adsorption from photocatalytic degradation. The sample synthesized at 160 °C (S160) shows the best performances for both adsorption under dark and photocatalytic degradation of methylene blue (MB) under visible light irradiation. The adsorption mechanism for S160 is determined as monolayer adsorption based on the adsorption isotherm test under dark condition, and an impressive adsorption capacity of 162.19 mg/g is achieved. For the photocatalytic application, this sample at 0.1 g/L loading is also able to degrade 20 ppm MB within 6 hours under the visible light (>420 nm) condition.
ISSN: 0022-4596
DOI: 10.1016/j.jssc.2013.10.036
Rights: © 2013 Elsevier Inc. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Solid State Chemistry, Elsevier Inc. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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