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- Title
Rapid Degradation of Rhodamine B through Visible-Photocatalytic Advanced Oxidation Using Self-Degradable Natural Perylene Quinone Derivatives—Hypocrellins.
- Authors
Huang, Zhixian; Zhang, Fan; Tang, Yanbo; Wen, Yongdi; Wu, Zhenqiang; Fang, Zhen; Tian, Xiaofei
- Abstract
Hypocrellins (HYPs) are natural perylene quinone derivatives from Ascomycota fungi. Based on the excellent photosensitization properties of HYPs, this work proposed a photocatalytic advanced oxidation process (PAOP) that uses HYPs to degrade rhodamine B (RhB) as a model organic pollutant. A synergistic activity of HYPs and H2O2 (0.18 mM of HYPs, 0.33% w/v of H2O2) was suggested, resulting in a yield of 82.4% for RhB degradation after 60 min under visible light irradiation at 470–475 nm. The principle of pseudo-first-order kinetics was used to describe the decomposition reaction with a calculated constant (k) of 0.02899 min−1 (R2 = 0.983). Light-induced self-degradation of HYPs could be activated under alkaline (pH > 7) conditions, promising HYPs as an advanced property to alleviate the current dilemma of secondary pollution by synthetic photocatalysts in the remediation of emerging organic pollutants.
- Subjects
PERYLENE; PHOTOCATALYTIC oxidation; CHEMICAL decomposition; QUINONE derivatives; VISIBLE spectra; PHOTOSENSITIZATION; RHODAMINE B
- Publication
Bioengineering (Basel), 2022, Vol 9, Issue 7, p307
- ISSN
2306-5354
- Publication type
Article
- DOI
10.3390/bioengineering9070307