Rapid photocatalytic degradation of methylene blue, tartrazine and brilliant green dyes by high-flux UV irradiation photolysis reactor | Zendy

Rabia Rehman | Zendy; Waheed Zaman | Zendy; Akmal Abbas | Zendy; Liviu Mitu | Zendy

Open Access

Rapid photocatalytic degradation of methylene blue, tartrazine and brilliant green dyes by high-flux UV irradiation photolysis reactor

Author(s) -

Rabia Rehman,

Waheed Zaman,

Akmal Abbas,

Liviu Mitu

Publication year - 2019

Publication title -

bulgarian chemical communications

Language(s) - English

Resource type - Journals

ISSN - 0324-1130

DOI - 10.34049/bcc.51.3.4683

Subject(s) - tartrazine , methylene blue , photodissociation , photocatalysis , degradation (telecommunications) , chemistry , brilliant green , photochemistry , nuclear chemistry , spectrophotometry , kinetics , irradiation , catalysis , chromatography , organic chemistry , telecommunications , physics , quantum mechanics , computer science , nuclear physics

The aim of this work was to investigate the removal of dyes from wastewater by photocatalytic degradation using a modified assembly of photolysis reactor. It was more efficient and dye degradation occurred very fast. UV/Visible spectrophotometry was used to monitor the reaction. The degradation of dyes with different catalysts was compared and found to follow first-order kinetics. The optimal result for Methylene Blue was t(1/2)=4 min, k = 0.4471 min-1, R2 = 0.9650, for Tartrazine - t(1/2) = 1.2 min, k = 0.9723 min-1, R2 = 0.9980 and for Brilliant Green - t(1/2) = 0.8 min, k = 0.9716min-1, R2 = 0.9938. So, it can be efficiently employed on a larger scale.Keywords: Methylene Blue, Tartrazine, Brilliant Green, Photolysis, Degradation.

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