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Palladium nanoparticle formation on boron nitride nanotubes and their photocatalytic performance with visible light
Palladium nanoparticle formation on boron nitride nanotubes and their photocatalytic performance with visible light
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Date
2023
Authors
Iqra Rabani
Muhammad Shoaib Tahir
Won-Il Lee
Hai Bang Truong
Ghulam Dastgeer
Young-Soo Seo
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Research Projects
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Abstract
"Development of efficient but long-term stable photocatalysts for removal of organic pollutants from water
sources is still a huge challenge up to date. In this study, palladium nanoparticles (Pd NPs) were dispersed on the
surface of boron nitride nanotube (BNNT), a series of Pd@BNNT hybrid was synthesized using a one-step and
cost-effective ultrasonication method, and the photocatalytic performance were investigated. By increasing the
ultrasonication time, productivity of the Pd NPs on BNNT was increased and also obtained the uniform nanostructure,
thereby enhancing the specific surface area, which is the promising attribute for the efficient removal
of organic pollutants. In this regard, the Pd@BNNT3 hybrid shows higher photocatalytic performance with
respect to other catalysts against the crystal violet and levofloxacin, 97.6%/50 min, and 97.7%/40 min
respectively. Further, a reusability test was conducted for the Pd@BNNT3 hybrid by using the CV over seven
consecutive cycles. Approximately, 24.7% photocatalytic efficiency was lost in the final catalytic activity owing
to its particle loss (7.2%). Significantly, the structure of the Pd@BNNT3 catalyst did not change even after
measuring the reusability seven times, suggesting that the catalyst has a stable morphology. The enhanced
photocatalytic performance is attributed to the larger specific surface area (128 m2/g) of Pd@BNNT3 hybrid,
which enhance the production of the visible light induced radical oxygen species. As a summary, the efficient
photocatalyst developed in this study can eliminating the organic contaminants from the wastewater source and
is a highly promising solution for tackling wastewater treatment challenges in the near future."
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Keywords
"Pd@BNNT,
Photocatalysis ability,
Reusability,
And removal mechanism"