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ACS omega
Mar 03, 2020;5 (8): 3828-3838.

ZnO-Modified g-CN: A Potential Photocatalyst for Environmental Application.

Devina Rattan Paul, Shubham Gautam, Priyanka Panchal, Satya Pal Nehra, Pratibha Choudhary, Anshu Sharma
Author Information
  1. Devina Rattan Paul: Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India.
  2. Shubham Gautam: Materials Research Center, Malaviya National Institute of Technology, Jaipur 302017, India.
  3. Priyanka Panchal: Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India.
  4. Satya Pal Nehra: Center of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India.
  5. Pratibha Choudhary: Department of Chemistry, Bharti Mahavidyalaya, Reengus 332404, India.
  6. Anshu Sharma: Department of Physics, School of Engineering & Technology (SoET), Central University of Haryana, Mahendragarh 123031, India.
PMID: 32149209 DOI: 10.1021/acsomega.9b02688

Abstract

Solar energy-driven practices using semiconducting materials is an ideal approach toward wastewater remediation. In order to attain a superior photocatalyst, a composite of g-CN and ZnO (GCN-ZnO) has been prepared by one-step thermal polymerization of urea and zinc carbonate basic dihydrate [ZnNO]·[Zn(OH)]. The GCN-ZnO0.4 sample showed an evolved morphology, increased surface area (116 m g), better visible light absorption ability, and reduced band gap in comparison to GCN-pure. The GCN-ZnO0.4 sample also showed enhanced adsorption and photocatalytic activity performance, resulting in an increased reaction rate value up to 3 times that of GCN-pure, which was attributed to the phenomenon of better separation of photogenerated charge carriers resulting because of heterojunction development among interfaces of GCN-pure and ZnO. In addition, the GCN-ZnO0.4 sample showed a decent stability for four cyclic runs and established its potential use for abatement of organic wastewater pollutants in comparison to GCN-pure.

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