Exploring the Heterocatalytic Proficiencies of ZnO Nanostructures in the Simultaneous Photo-Degradation of Chlorophenols

Ali Dad Chandio (), Abdul Hameed Pato, Iftikhar Ahmed Channa, Sadaf Jamal Gilani, Aqeel Ahmed Shah, Jaweria Ashfaq, Jamil A. Buledi, Imran Ali Chandio and May Nasser Bin Jumah
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Ali Dad Chandio: Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
Abdul Hameed Pato: National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
Iftikhar Ahmed Channa: Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
Sadaf Jamal Gilani: Department of Basic Health Sciences, Preparatory Year, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
Aqeel Ahmed Shah: Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
Jaweria Ashfaq: Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan
Jamil A. Buledi: National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
Imran Ali Chandio: Institute of Chemistry, Shah Abdul Latif University, Khairpur Mirs 66111, Pakistan
May Nasser Bin Jumah: Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia

Sustainability, 2022, vol. 14, issue 21, 1-14

Abstract: The development of innovative technology for effective pollutant degradation is becoming more important as a result of major environmental issues. Here, ZnO nanoparticles were synthesized using facile and aqueous chemical growth routes. Analytical techniques such as scanning electron micrographs (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Zeta Seizer (ZS), and Zeta Potential were used to analyze the resultant nanoparticles (ZP). The ZnO reveals a nanocluster texture that has a medium scale of 27 nm and a surface charge (17 ± 3 mV) with a wurtzite phase and crystalline nature. Photo catalysts have a higher potential for the thermal disposal of chlorophenols pollutants due to their low cost and simple synthesis procedure. The as-prepared sample underwent photocatalysis for the simultaneous photo-degradation of PCP and TCP as a model dye under sunlight. The ZnO nanostructure exhibited an exceptional degradation of around 85–90% for PCP and TCP in the aqua liquid, with the lowest amount of catalyst dosage of 240–250 μg individually and simultaneously, over 3 min beneath the sun ray. The greater productivity of the ZnO nanostructure for natural deterioration during solar irradiation indicates that the aqueous chemical growth enables the creation of effective and affordable photocatalysts for the photodegradation of a variety of environmental contaminants.

Keywords: ZnO nanostructure; heterogeneous kinetics; aqueous chemical growth method; photocatalytic degradation; pentachlorophenol (PCP); trichlorophenol (TCP) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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