Efficient Degradation of Endocrine Disruptors Using 1D and 3D Copper (I) Oxide Nanostructures. Issue 22 (4th August 2017)

• Record Type: Journal Article
• Authors: Mukherjee, Indrani; Mishrra, Anushka; Saha, Rajnarayan; Chatterjee, Sriparna
• Is Part Of: ChemistrySelect. Volume 2:Issue 22(2017)
• Page Start: 6388
• Page End: 6398
• Publication Date: 2017-08-04
• Subjects: Copper oxide -- endocrine disruptors -- nanocubes -- nanooctahedra -- nanorods -- photocatalysis; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201701181
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: The visible light photocatalytic degradation of a synthetic oral contraceptive, 17α‐ ethinylestradiol (EE2) and a natural estrogen, estrone (E1) by Cu2 O nanostructures has been investigated. For this purpose, Cu2 O nanocrystals with varied morphologies (nano‐ cubes, nano‐ octahedra and nano‐ rods) have been synthesized via different synthetic routes. The morphological evolution from nano‐ cubes to nano‐ octahedra with simple alteration of the stabilizing agent (PVP) has been shown. To account for the pH effect on the degradation rates, the photocatalytic experiments have been conducted in three different pH values (7, 8 and 10). Photocatalytic studies prove that the Cu2 O nanostructures work best at pH 7 with decrease in efficiency at higher pH. Cu2 O nano‐ rods has emerged as the best visible light photocatalyst at pH 7 (95 % degradation within 45 minutes of irradiation) reported till date for the degradation of estrogens EE2 and E1. Abstract : 1D and 3D copper (I) oxide nanostructures were synthesized using wet chemical method and their photocatalytic activities towards degradation of endocrine disruptors were studied under visible light irradiation at different pH. 1D nanostructures showed best degradation ability with t1/2 value of 11.6 minutes at pH ∼ 7.