Pd octahedra nanocubes mediated photo-fenton catalytic performance for sustainable degradation of methylene blue

Heying Li; Ding Luo; Pengshan Guo; Shegan Gao; Manping Lin; Hongbo Sun; Jianping Wang; Dongmei Yu; Shaowen Cheng; Jinghua Li

Arabian Journal of Chemistry (Sep 2024)

Pd octahedra nanocubes mediated photo-fenton catalytic performance for sustainable degradation of methylene blue

Heying Li,
Ding Luo,
Pengshan Guo,
Shegan Gao,
Manping Lin,
Hongbo Sun,
Jianping Wang,
Dongmei Yu,
Shaowen Cheng,
Jinghua Li

Affiliations

Heying Li: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China
Ding Luo: Key Laboratory of Hainan Trauma and Disaster Rescue, Department of Wound Repair, the First Affiliated Hospital of Hainan Medical University, School of Emergency and Trauma, Hainan Medical University, Haikou 570100, China
Pengshan Guo: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China
Shegan Gao: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China; Corresponding authors at: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China.
Manping Lin: Key Laboratory of Hainan Trauma and Disaster Rescue, Department of Wound Repair, the First Affiliated Hospital of Hainan Medical University, School of Emergency and Trauma, Hainan Medical University, Haikou 570100, China
Hongbo Sun: Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, College of Emergency and Trauma, Hainan Medical University, Haikou 5711‘99, China
Jianping Wang: Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, College of Emergency and Trauma, Hainan Medical University, Haikou 5711‘99, China
Dongmei Yu: Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, College of Emergency and Trauma, Hainan Medical University, Haikou 5711‘99, China
Shaowen Cheng: Key Laboratory of Hainan Trauma and Disaster Rescue, Department of Wound Repair, the First Affiliated Hospital of Hainan Medical University, School of Emergency and Trauma, Hainan Medical University, Haikou 570100, China; Corresponding authors at: Key Laboratory of Hainan Trauma and Disaster Rescue, Department of Wound Repair, the First Affiliated Hospital of Hainan Medical University, School of Emergency and Trauma, Hainan Medical University, Haikou 570100, China.
Jinghua Li: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China; Key Laboratory of Hainan Trauma and Disaster Rescue, Department of Wound Repair, the First Affiliated Hospital of Hainan Medical University, School of Emergency and Trauma, Hainan Medical University, Haikou 570100, China; Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, College of Emergency and Trauma, Hainan Medical University, Haikou 5711‘99, China; Corresponding authors at: The 1st Affiliated Hospital, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China.

Journal volume & issue: Vol. 17, no. 9
p. 105936

Abstract

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This research utilized a typical solvothermal approach, by employing Na2PdCl4 as the synthetic precursor, L-ascorbic acid (AA) as the reductant agent, and polyvinylpyrrolidone (PVP) as the practical surfactant, palladium (Pd) octahedra was finally effectively synthesized by the hydrothermal and solvothermal methods. Subsequently, characterizations of Pd octahedra were conducted by using TEM, XPS, XRD, and other analytical methods. Whereafter, Pd octahedra displayed a consistent shape and size, featuring a distinctive tip-shaped structure, which conferred upon them outstanding optical absorption properties within the near-infrared (NIR) region. Consequently, under NIR laser exposure, Pd octahedra could elevate local reaction temperature via in-situ photothermal conversion, thereby stimulating the formation of active sites of Fenton catalysts. The Photo-Fenton catalytic activity of Pd octahedra was investigated by using methylene blue (MB) as a model pollutant. The degradation efficiency of MB reached 94.8 % within 35 min under 808 nm laser irradiation, and the removal rate of MB by Pd octahedra could still reach more than 90 % after five cycles of use. All the results manifest that Pd octahedra exhibit excellent purification performance for MB dyestuff wastewater.

Published in Arabian Journal of Chemistry

ISSN: 1878-5352 (Print)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: http://www.journals.elsevier.com/arabian-journal-of-chemistry/

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