Sodium tungsten oxide bronze nanowires bundles in adsorption of methylene blue dye under uv and visible light exposure

Kunyapat Thummavichai*, Le Anh Thi, Swee-Yong Pung, Oluwafunmilola Ola, Mian Zahid Hussain, Yu Chen, Fang Xu, Wenting Chen, Nannan Wang*, Yanqiu Zhu*

*Corresponding author for this work

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Abstract

This paper describes the analysis and characterization of NayWOx bronze nanowires bundles and evaluation of their effective adsorption of methylene blue dye (MB). The Na-doped WOx bronze nanowires bundles were first synthesized via a simple solvothermal method, which were then fully characterized by using different techniques including TEM, XRD, XPS and UV-Vis, to validate the successful Na+ insertion into the WOx framework. The adsorption activities of the resulting NayWOx bronze nanowires bundles, compared with the undoped WOx form, were investigated by evaluating the adsorption effect on methylene blue under both UV and visible light irradiations. An enhanced adsorption performance of the Na-doped WOx bronze samples was recorded, which demonstrated a 90% of removal efficiency of the MB under different conditions (dark, visible and UV light). Moreover, the NayWOx bronze samples also offered a 4 times better kinetic rate of MB removal than the plain WOx nanowires.
Original languageEnglish
Article number1322
Number of pages16
JournalEnergies
Volume14
Issue number5
DOIs
Publication statusPublished - 1 Mar 2021
Externally publishedYes

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