A highly photoresponsive and efficient molybdenum‑modified titanium dioxide photocatalyst for the degradation of methyl orange
The degradation of azo dyes in aquatic environments is still challenging due to their stability and perpetual effect. This work demonstrates the application of highly ultraviolet-responsive titanium dioxide/molybdenum photocatalyst to degrade methyl orange. A series of titanium dioxide/molybdenum...
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my.unimas.ir.355112021-06-25T08:12:58Z http://ir.unimas.my/id/eprint/35511/ A highly photoresponsive and efficient molybdenum‑modified titanium dioxide photocatalyst for the degradation of methyl orange Kanakaraju, Devagi Muhamad Akif Aizuddin, Bin Jasni Y. C., Lim QD Chemistry The degradation of azo dyes in aquatic environments is still challenging due to their stability and perpetual effect. This work demonstrates the application of highly ultraviolet-responsive titanium dioxide/molybdenum photocatalyst to degrade methyl orange. A series of titanium dioxide/molybdenum photocatalyst with different molybdenum concentrations (1–10 wt%) were synthesized by a facile wet impregnation method. The introduction of molybdenum has favorably induced changes in surface morphology, crystallite size, optical absorption, and specific surface area, which have collectively enhanced the photocatalytic performance of titanium dioxide/molybdenum photocatalyst on the removal of methyl orange. A systematic investigation on the influencing parameters such as photocatalyst dosage, initial methyl orange concentration, and initial pH was investigated, and the optimum conditions were achieved. The best-performing titanium dioxide/molybdenum (3 wt%) photocatalyst yielded a 94.5% methyl orange photodegradation efficiency within 120 min of irradiation. The dopant concentration, photocatalyst dosage, and pH were investigated to validate the optimized conditions for titanium dioxide/molybdenum on methyl orange removal using response surface methodology via the Box–Behnken design. The present results demonstrated that both the superoxide radical and hydroxyl radical play a primary role in the degradation mechanism. This study provides fresh insight that the successful structural modification of titanium dioxide by molybdenum could enhance the photocatalytic removal of dye wastewater. Springer 2021-06-19 Article PeerReviewed text en http://ir.unimas.my/id/eprint/35511/1/Devagi_IJEST%20Jun%202021%20Abstract.pdf Kanakaraju, Devagi and Muhamad Akif Aizuddin, Bin Jasni and Y. C., Lim (2021) A highly photoresponsive and efficient molybdenum‑modified titanium dioxide photocatalyst for the degradation of methyl orange. International Journal of Environmental Science and Technology, 2021 (1). p. 1. ISSN 1735-1472 https://link.springer.com/article/10.1007%2Fs13762-021-03484-y https://doi.org/10.1007/s13762-021-03484-y |
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QD Chemistry Kanakaraju, Devagi Muhamad Akif Aizuddin, Bin Jasni Y. C., Lim A highly photoresponsive and efficient molybdenum‑modified titanium dioxide photocatalyst for the degradation of methyl orange |
description |
The degradation of azo dyes in aquatic environments is still challenging due to their stability and perpetual effect. This work
demonstrates the application of highly ultraviolet-responsive titanium dioxide/molybdenum photocatalyst to degrade methyl
orange. A series of titanium dioxide/molybdenum photocatalyst with different molybdenum concentrations (1–10 wt%) were
synthesized by a facile wet impregnation method. The introduction of molybdenum has favorably induced changes in surface
morphology, crystallite size, optical absorption, and specific surface area, which have collectively enhanced the photocatalytic
performance of titanium dioxide/molybdenum photocatalyst on the removal of methyl orange. A systematic investigation on
the influencing parameters such as photocatalyst dosage, initial methyl orange concentration, and initial pH was investigated,
and the optimum conditions were achieved. The best-performing titanium dioxide/molybdenum (3 wt%) photocatalyst yielded
a 94.5% methyl orange photodegradation efficiency within 120 min of irradiation. The dopant concentration, photocatalyst
dosage, and pH were investigated to validate the optimized conditions for titanium dioxide/molybdenum on methyl orange
removal using response surface methodology via the Box–Behnken design. The present results demonstrated that both the
superoxide radical and hydroxyl radical play a primary role in the degradation mechanism. This study provides fresh insight
that the successful structural modification of titanium dioxide by molybdenum could enhance the photocatalytic removal
of dye wastewater. |
format |
Article |
author |
Kanakaraju, Devagi Muhamad Akif Aizuddin, Bin Jasni Y. C., Lim |
author_facet |
Kanakaraju, Devagi Muhamad Akif Aizuddin, Bin Jasni Y. C., Lim |
author_sort |
Kanakaraju, Devagi |
title |
A highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
title_short |
A highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
title_full |
A highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
title_fullStr |
A highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
title_full_unstemmed |
A highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
title_sort |
highly photoresponsive and efficient molybdenum‑modified
titanium dioxide photocatalyst for the degradation of methyl orange |
publisher |
Springer |
publishDate |
2021 |
url |
http://ir.unimas.my/id/eprint/35511/1/Devagi_IJEST%20Jun%202021%20Abstract.pdf http://ir.unimas.my/id/eprint/35511/ https://link.springer.com/article/10.1007%2Fs13762-021-03484-y https://doi.org/10.1007/s13762-021-03484-y |
_version_ |
1703964091714895872 |
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13.188404 |