Efficient Degradation of Aqueous Rhodamine B Irradiation Under Indoor Light Using a SiO2-Hypocrellin B Complex

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• 作者：Jucheng Zhang ; Heping Yan ; Yashun Chen ; Rui Chen ; Ying He and Wei Liu
• 刊名：Photochemistry and Photobiology
• 出版年：2016
• 出版时间：July/August 2016
• 年：2016
• 卷：92
• 期：4
• 页码：644-648
• 全文大小：365K
• ISSN：1751-1097

文摘

An efficient method for the degradation of the dye Rhodamine B (RhB) is reported. A SiO₂–hypocrellin B (SiO₂–HB) complex was found to work as a catalyst to degrade RhB in aqueous solution at room temperature and atmospheric pressure, over the pH range 1–10, under indoor light conditions. This method is capable of removing 82.68% of RhB within 20 min at pH 9. The SiO₂–HB complex was characterized by both scanning electron microscopy and surface area analysis. The reaction progress was examined using ultrahigh pressure liquid chromatography/mass spectrometry and UV–visible spectroscopy. This process represents an efficient means of decontaminating dye-containing wastewaters in either highly acidic or weakly alkaline environments.