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Article
Zinc Oxide Nanoparticles-Immobilized Mesoporous Hollow Silica Spheres for Photodegradation of Sodium Dodecylbenzenesulfonate
Australian Journal of Chemistry
(2016)
Abstract
ZnO-Immobilized mesoporous hollow silica spheres (ZnO/xMHSS; x ¼ 15, 30, 50 molar ratio of Zn/Si) were synthesized and examined as photocatalysts toward the degradation of sodium dodecylbenzenesulfonate (SDBS). The hollow structures of MHSS and ZnO-immobilized MHSS composite were evidenced by transmission electron microscopy analysis. X-ray diffraction results confirmed the presence of ZnO and a mesoporous structure in the synthesized materials. N2 adsorption–desorption analysis also depicted the formation of a mesoporous structure and the increased surface area for the ZnO/xMHSS materials. Fourier transform infrared spectroscopy analysis revealed the formation of Si–O–Zn bonds due to interaction between ZnO and MHSS. The photocatalytic testing results indicated that all the ZnO/xMHSS materials showed improved efficiencies of 10–21 % toward the photodegradation of SDBS when compared with bare ZnO. Among the prepared materials, ZnO/15MHSS was the best photocatalyst, which photodegraded 68 % SDBS after 1 h reaction. The kinetic study demonstrated that the photocatalytic reaction followed the second-order model.
Keywords
- Zinc Oxide Nanoparticles,
- Mesoporous Hollow Silica Spheres,
- Photodegradation of Sodium Dodecylbenzenesulfonate
Disciplines
Publication Date
2016
DOI
10.1071/CH15495
Citation Information
Parisa Pourdayhimi, Pei Wen Koh, Mohamed Mohd Salleh, Hadi Nur, et al.. "Zinc Oxide Nanoparticles-Immobilized Mesoporous Hollow Silica Spheres for Photodegradation of Sodium Dodecylbenzenesulfonate" Australian Journal of Chemistry Vol. 69 Iss. 7 (2016) p. 790 - 797 Available at: http://works.bepress.com/hadi_nur/132/