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CMC/BiOCl 3D Hierarchical Nanostructures with Exposed {001} Facets and Its Enhanced Photocatalytic Activity
Author(s) -
Sun Jingyu,
Li Dongya,
Li Yirui,
Cai Yujie,
Sun Lei,
Yuan Xiangjuan,
Cao Gang,
Xu Haiming,
Xia Dongsheng
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201703167
Subject(s) - rhodamine b , diffractometer , photocatalysis , materials science , scanning electron microscope , electron paramagnetic resonance , carboxymethyl cellulose , transmission electron microscopy , fourier transform infrared spectroscopy , nanostructure , chemical engineering , band gap , photochemistry , nuclear chemistry , nanotechnology , chemistry , optoelectronics , nuclear magnetic resonance , organic chemistry , catalysis , composite material , physics , sodium , metallurgy , engineering
CMC/BiOCl 3D hierarchical nanostructures with exposed {001} facets were successfully synthesized under the control of carboxymethyl cellulose (CMC). The physicochemical properties of as‐synthesized samples were characterized by X‐ray powder diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), UV–vis diffused reflectance spectra (DRS), Fourier transformed infrared (FT‐IR), Brunauer‐Emmett‐Teller (BET) measurements, and electron spin resonance (ESR). The results demonstrate that CMC makes great effects upon the morphology, structure and properties. BOC‐1 synthesized with CMC amount of 0.1 g exhibits highest visible photocatalytic activity on the degradation of Rhodamine B (RhB) for its 3D hierarchical nanostructures, thinnest nanosheets about 8.6 nm, appropriate band gap about 2.82 eV. The reaction rate of BOC‐1 is 4.5 times higher than that of pure BiOCl synthesized without CMC. Furthermore, the radicals and holes trapping experiments and electron spin resonance spectroscopy confirm ⋅O 2 − is the main active species, and a possible mechanism of CMC/BiOCl enhanced the photocatalytic activity was proposed.