A TIO2 photocatalyst was used to destroy pollutant compounds in a sample of water. The catalyst was irradiated with 250 nm radiation from a 300 W source for 90 minutes. 40% of the light was reflected off the catalyst and the rest was absorbed. After irradiation it was found that 0.02 moles of the pollutant compound had been decomposed. Calculate the quantum yield of the photo-decomposition process.

A TIO2 photocatalyst was used to destroy pollutant compounds in a sample of water. The catalyst was irradiated with 250 nm radiation from a 300 W source for 90 minutes. 40% of the light was reflected off the catalyst and the rest was absorbed. After irradiation it was found that 0.02 moles of the pollutant compound had been decomposed. Calculate the quantum yield of the photo-decomposition process.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter7: Components Of Optical Instruments

Section: Chapter Questions

Problem 7.6QAP: Describe the differences and similarities between spontaneous and stimulated emission.

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