Cu-ZnO for visible light induced mineralization of Bisphenol-A: Impact of Cu ion doping. Issue 3 (June 2019)

• Record Type: Journal Article
• Authors: Kumar, K.V. Ashok; Lakshminarayana, Bhairi; Vinodkumar, T.; Subrahmanyam, Ch.
• Is Part Of: Journal of environmental chemical engineering. Volume 7:Issue 3(2019)
• Publication Date: 2019-06
• Subjects: Photocatalytic degradation -- Bisphenol-A -- Zn1-xCuxO -- Mineralization -- Photocatalytic mechanism; Chemical engineering -- Environmental aspects -- Periodicals; Environmental engineering -- Periodicals; Chemical engineering -- Environmental aspects; Environmental engineering; Periodicals; 660.0286
• DOI: 10.1016/j.jece.2019.103057
• Languages: English
• ISSNs: 2213-2929

Abstract

Graphical abstract: Graphical abstracts shows the electron transfer mechanism under visible light for Cu doped ZnO and the photocatalytic degradation of bisphenol A. Highlights: ZnO and Cu doped ZnO photocatalysts were synthesized by co-precipitation method. The prepared photocatalysts were characterized by various physicochemical techniques. Amongst prepared materials Zn0.99 Cu0.01 O has shown the highest activity (0.0076 min -1 ) for Bisphenol A degradation (74%). The percentage of mineralization of Bisphenol A for the active photocatalyst was 66%. The active catalyst Zn0.99 Cu0.01 O was stable and it shows 68% removal of Bisphenol A after four cycles. Abstract: For the global environmental problem, development of sustainable photocatalysts possess major scientific challenge. In this context, we developed a series of Zn1-x Cux O (x = 0.01, 0.02, 0.03, 0.04) nanocatalysts (viaco- precipitation method) for photocatalytic abatement of Bisphenol-A from the water. As-prepared photocatalysts characterized by using various physicochemical techniques like PXRD, XPS, TEM, UV-VIS-DRS and PL spectroscopy. Notably, among all photocatalysts Zn0.99 Cu0.01 O furnished the better activity under visible light and observed 74% of abatement with rate constant 0.0076 min −1 and 66% of mineralization.