2021 : Design of Photocatalysis Reactor to Measure Photodegradation Real-time of Methylene Blue with The Glass Substrate was Coated TiO2

Dr.Drs. Gatut Yudoyono MT



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The photocatalytic reactor for color degradation of wastewater in the textile industry has several types, one of which is the cascade photoreactor, but the reactor is not equipped with a degradation level gauge for textile substances. Research related to the design of photocatalytic reactors has been carried out to design a photocatalytic reactor that measures photodegradation in realtime, knowing the optimum concentration of TiO2 in the degradation of methylene blue and comparing the results of MB degradation with catalyst and without the catalyst. In this study, a photodiode sensor was used to measure the photodegradation of methylene blue directly to the reactor. The variations of the treatment are a control reactor (without catalyst) and a reactor with a catalyst of 2 gr, 3 gr and 4 gr which is deposited on a glass substrate with Vernis adhesive. Photodegradation testing was carried out using a UV-Vis spectrophotometer and photodegradation sensor. The result of this research, shown that the photocatalytic reactor equipped with a degradation level gauge in realtime can work well. The decrease in the absorbance value of methylene blue in the control reactor, and catalyst reactor TiO2 with 2 gr, 3 gr, and 4 gr respectively were 4.84%, 61.8%, 89.8%, and 76.1%.