Highly active visible-light-driven photo-electrocatalytic process in TiO2/Ti electrode by Te doping

The concern over increasing environmental contamination by dye agents from textile industries, such as Reactive yellow 105, requires a special catalyst that can rapidly and effectively eradicate the dye chemical. Here, we demonstrate a new design of catalyst, i.e., Te doped TiO 2 /Ti composite elect...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2023-02, Vol.53 (2), p.307-314
Main Authors: Nurdin, Muhammad, Muzakkar, Muhammad Zakir, Maulidiyah, Maulidiyah, Sumarni, Cici, Azis, Thamrin, Ratna, Ratna, Natsir, Muhammad, Irwan, Irwan, Salim, La Ode Agus, Umar, Akrajas Ali
Format: Article
Language:English
Subjects:
Catalysts
Charge transfer
Chemistry
Chemistry and Materials Science
Contamination
Doping
Dyes
Electrochemistry
Electrodes
Equivalence
Industrial Chemistry/Chemical Engineering
Light irradiation
Oxidation
Photocatalysts
Photodegradation
Physical Chemistry
Research Article
Tellurium
Titanium dioxide
Ultraviolet radiation
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Summary:The concern over increasing environmental contamination by dye agents from textile industries, such as Reactive yellow 105, requires a special catalyst that can rapidly and effectively eradicate the dye chemical. Here, we demonstrate a new design of catalyst, i.e., Te doped TiO 2 /Ti composite electrode, that promotes highly active charge transfer with the Reactive yellow 105 dye for efficient photoelectrocatalytic degradation under visible light irradiations. Our results show that the new photocatalyst effectively degrades up to 90% of 0.5 ppm of the Reactive yellow 105 dye under visible light irradiation within 60 min, which is equivalent to the degradation rate constant of 0.0611 M -1  min -1 . It is impressively higher than the pristine photocatalyst (TiO 2 /Ti) of which it only degrades 70 and 65% of dye compound under UV and Vis irradiation respectively or equivalent to degradation kinetic rate as low as 0.037 and 0.0361 M −1  min −1 , respectively. The degradation of dye compound is enhanced to 100% when the new catalyst is applied in photoelectrocatalytic degradation process under visible light irradiation or approximately 95% degradation under UV light irradiation. The Te doped TiO 2 /Ti photoelectrocatalyst can be a new platform for rapid Reactive yellow 105 dye contamination in the environment. Graphical abstract Te doping enhances visible photoactivity of TiO 2 nanotube on Ti electrode.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-022-01771-1