A novel tungsten diselenide nanoparticles for enhanced photocatalytic performance of Cr (VI) reduction and ciprofloxacin (CIP)

Linjer Chen; Yuliv Chuang; Thanh-Binh Nguyen; Chung-Hsin Wu; Chiu-Wen Chen; Cheng-Di Dong

doi:10.1016/j.chemosphere.2023.139701

A novel tungsten diselenide nanoparticles for enhanced photocatalytic performance of Cr (VI) reduction and ciprofloxacin (CIP)

Chemosphere. 2023 Oct:339:139701. doi: 10.1016/j.chemosphere.2023.139701. Epub 2023 Aug 3.

Authors

Linjer Chen¹, Yuliv Chuang², Thanh-Binh Nguyen², Chung-Hsin Wu³, Chiu-Wen Chen⁴, Cheng-Di Dong⁵

Affiliations

¹ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan.
² Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan.
³ Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 80778, Taiwan.
⁴ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan. Electronic address: cwchen@nkust.edu.tw.
⁵ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan. Electronic address: cddong@nkust.edu.tw.

PMID: 37543232
DOI: 10.1016/j.chemosphere.2023.139701

Abstract

Nanoparticles (NPs) fabrication is a significant approach to enhance the visible light response of photocatalysts, to realize inexpensive and more harmful compound removal, at larger scale. The poor electrons and holes separation capability and low light activity of bulk materials can be notably enhanced through developing NPs. From photocatalytic investigation, better performance was received in the tungsten diselenide (WSe₂) NPs than that in bare WSe₂, exhibiting the action of restrained recombination of charge carriers in the NPs. The photocatalytic Cr(VI) reduction efficiency of WSe₂ NPs is 2.7 folds greater than that by bare WSe₂. On the other hand, the photocatalytic efficiency follows the order of nano WSe₂-3 > nano WSe₂-2 > nano WSe₂-1 > bare WSe₂, nano WSe₂-3 is nearly 2.7 folds greater than that of bare WSe₂. The results imply the fabrication of WSe₂ NPs and it possesses improved visible light utilization. The proposed WSe₂ NPs have merged with the three aspects of photocatalytic capability including the visible light activity, the valid separation of photo-response charge carriers and enough surface active sites owing to the nanoscale formed. This research endows conduct on the potential style of NPs for photo-response water environmental remediation.

Keywords: Ciprofloxacin (CIP); Cr (VI) reduction; Degradation mechanism; Nanoparticles; Photocatalytic.

MeSH terms

Catalysis
Ciprofloxacin*
Light
Nanoparticles*
Tungsten
Water

Substances

Ciprofloxacin
Tungsten
Water