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 and Yanqiu Zhu
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Kunyapat Thummavichai: Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
Le Anh Thi: School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang 11800, Malaysia
Swee-Yong Pung: School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang 11800, Malaysia
Oluwafunmilola Ola: Advanced Materials Group, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK
Mian Zahid Hussain: College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4PY, UK
Yu Chen: College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4PY, UK
Fang Xu: Advanced Materials Group, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK
Wenting Chen: Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
Nannan Wang: Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
Yanqiu Zhu: College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4PY, UK

Energies, 2021, vol. 14, issue 5, 1-16

Abstract: This paper describes the analysis and characterization of Na y WO x bronze nanowires bundles and evaluation of their effective adsorption of methylene blue dye (MB). The Na-doped WO x 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 WO x framework. The adsorption activities of the resulting Na y WO x bronze nanowires bundles, compared with the undoped WO x 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 WO x bronze samples was recorded, which demonstrated a 90% of removal efficiency of the MB under different conditions (dark, visible and UV light). Moreover, the Na y WO x bronze samples also offered a 4 times better kinetic rate of MB removal than the plain WO x nanowires.

Keywords: tungsten oxide nanowires bundles; methylene blue; adsorption properties; adsorbent (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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