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Study on the Photocatalytic Degration of Diesel Pollutants in Seawater by Li+-Doped Nano-TiO2

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Abstract:

Li+-doped nanoTiO2 particles with various amounts of dopant Li+ irons have been synthesized by a sol-gel process. The products were characterized by XRD and SEM.Which revealed that the crystal structure of Li+-doped nanoTiO2 is anatase, and the nanoparticles diameter was 42nm. Five factous, including dosage of Li+-doped nanoTiO2, initial concentration of diesel, pH value , photocatalytic degradetion reaction time and the presence of H2O2, are considered in the diesel degradation experiments. The results manifest that Li+-doped nanoTiO2 can be used as photocatalyst to removal diesel pollutants in seawater effectively. When the ratio of Li+ doped into TiO2 is 1%wt, the calcination temperature of Li-doped nanoTiO2 is 500°C, the dosage of the Li+-doped nanometer TiO2 is 0.4g/L, the initial concentration of diesel is 0.2g/L, pH value is 7.0, the reaction time is 2.5h and the H2O2 dosage is 0.2g/L, the removal rate of diesel pollutants is up to 88.10%.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

459-462

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.459

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Online since:

September 2013

Authors:

Ji Yao Guo, Xiao Cai Yu, Xiao Xv, Jin Fang Chen, Yun Qing Liu

Keywords:

Diesel Pollutants, Li+-Doped Nano-TiO2, Modified Nano-TiO2, Photocatalytic Degradation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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