| Autor: |
Asha, S., Hentry, C., Gomati, R., Bindhu, M. R., Gatasheh, Mansour K., Hatamleh, Ashraf Atef, Arokiyaraj, Selvaraj |
| Předmět: |
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| Zdroj: |
Journal of Inorganic & Organometallic Polymers & Materials; Feb2024, Vol. 34 Issue 2, p485-500, 16p |
| Abstrakt: |
We have synthesized lead tungstate (PbWO4), nickel doped PbWO4 (Ni- PbWO4) and poly ethylene glycol assisted Ni doped PbWO4 (Ni-PEG-PbWO4) by the co-precipitation method. XRD results indicate that the prepared PbWO4 based nanoparticles have a tetragonal structure. FTIR results indicated that the characterized functional groups in PEG combined well with the surface of Ni- doped PbWO4. The PEG molecules in the adsorbed state are controlled by the field of the solid-state surface due to its uniformly ordered chain structure and its hydrogen-bonding nature.The optical properties of the prepared nanoparticles are confirmed by UV–visible and photoluminescence spectrum. The BET surface area of PbWO4, Ni-PbWO4 and Ni-PEG-PbWO4 nanoparticles are found to be 1.616, 4.027 and 4.409 m2 /g respectively. The SEM analysis confirmed the presence of dendrites and polyhedrons. The presence of expected elements and its oxidation states are confirmed from EDX and XPS measurements, respectively. PbWO4, Ni-PbWO4 and Ni-PEG-PbWO4 nanoparticles showed good photo-catalytic activity against a hazardous dye, methyl orange (MO) and showed improved activity by Ni-PEG-PbWO4 because of its smaller particle size and higher surface area. It has been discovered that the influence of a number of important experimental factors such as pH, concentration of dye as well as concentration of catalyst on the photodegradation process. Thus, these materials have great potential for oxidizing hazardous dye pollutants from wastewater and their application in realistic environmental cleanup needs additional attempt. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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