Affiliations 

  • 1 Department of Physics, Hazara University Mansehra, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan
  • 2 Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan
  • 3 Department of Biotechnology, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
  • 4 Center for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway 47500, Selangor, Malaysia
  • 5 Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
  • 6 Department of Chemistry, Faculty of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
  • 7 Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
  • 8 Post Graduate Department of Chemistry, Seth Kesarimal Porwal College of Arts, Commerce and Science, Kamptee 441001, India
  • 9 Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to Be) University, Pune, Maharashtra 411038, India
  • 10 Department of Rasashastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
  • 11 Space Science Center (ANGKASA), Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia
  • 12 Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
Bioinorg Chem Appl, 2022;2022:9459886.
PMID: 35873731 DOI: 10.1155/2022/9459886

Abstract

Environmental problems with chemical and biological water pollution have become a major concern for society. Providing people with safe and affordable water is a grand challenge of the 21st century. The study investigates the photocatalytic degradation capabilities of hydrothermally prepared pure and Cu-doped ZnO nanoparticles (NPs) for the elimination of dye pollutants. A simple, cost-effective hydrothermal process is employed to synthesize the Cu-doped ZnO NPs. The photocatalytic dye degradation activity of the synthesized Cu-doped ZnO NPs is tested by using methylene blue (MB) dye. In addition, the parameters that affect photodegradation efficiency, such as catalyst concentration, starting potential of hydrogen (pH), and dye concentration, were also assessed. The dye degradation is found to be directly proportional to the irradiation time, as 94% of the MB dye is degraded in 2 hrs. Similarly, the dye degradation shows an inverse relation to the MB dye concentration, as the degradation reduced from 94% to 20% when the MB concentration increases from 5 ppm to 80 ppm. The synthesized cost-effective and environmentally friendly Cu-doped ZnO NPs exhibit improved photocatalytic activity against MB dye and can therefore be employed in wastewater treatment materials.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.