Biotemplate preparation of Bi 2 O 3  nanosheet for enhanced photodegradation of methylene blue | Zendy

Yang Jing | Zendy; Wang Meiyan | Zendy; Zhao Susu | Zendy; Liu Yangyang | Zendy; Zhang Wei | Zendy; Wu Bowen | Zendy; Liu Qing | Zendy

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Biotemplate preparation of Bi 2 O 3 nanosheet for enhanced photodegradation of methylene blue

Author(s) -

Yang Jing,

Wang Meiyan,

Zhao Susu,

Liu Yangyang,

Zhang Wei,

Wu Bowen,

Liu Qing

Publication year - 2019

Publication title -

micro and nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.25

H-Index - 31

ISSN - 1750-0443

DOI - 10.1049/mnl.2018.5706

Subject(s) - methylene blue , photodegradation , nanosheet , materials science , nuclear chemistry , chemistry , nanotechnology , catalysis , organic chemistry , photocatalysis

Bi 2 O 3 nanosheet was synthesised using China rose petal as a biotemplate for the photodegradation of methylene blue under xenon lamp irradiation. The samples were characterised by thermogravimetric analysis–differential scanning calorimetric analysis, Fourier‐transform infrared spectroscopy, nitrogen adsorption, X‐ray diffraction, scanning electron microscopy, transmission electron microscopy, and ultraviolet–visible diffuse reflectance spectroscopy. The results revealed that the Bi 2 O 3 nanosheet with pure monoclinic phase was successfully synthesised by replication of the petal template with a thickness of about 100 nm, and showed the absorption thresholds wavelength of 480 nm. Moreover, the Bi 2 O 3 nanosheet exhibited 94.84% degradation efficiency of photodegradation of methylene blue in 180 min, which was much more active than that of the commercial α‐Bi 2 O 3 due to its high specific surface area of 45.7 m 2 g −1 and wide band gap of 3.10 eV.

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