Spiral carbon fibers modified Bi2WO6 with enhanced photocatalytic activity

Publication date: Available online 24 February 2020Source: Journal of Physics and Chemistry of SolidsAuthor(s): Shiyun Lei, Chan Qin, Xiaolong Tang, Junbo Zhong, Jianzhang Li, Jian ChenAbstractIn this work, spiral carbon fibers (SCFs) were employed to surface decoration of Bi2WO6 (BWO) through a facile hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscope (HRTEM), X-ray photoelectron spectroscopy (XPS), Raman, electron spin-resonance (ESR) and surface photovoltage spectroscopy (SPS). The results reveal that SCFs can significantly tune the separation behaviors of photoinduced carriers, promote the surface hydroxyl level and the formation of •O2−. Trapping experiments reveal that holes (h+) and superoxide radicals (•O2−) are the leading active species during the photocatalytic abatement of rhodamine B (RhB). Photocatalytic performance of SCFs/BWO composites was evaluated by degradation of RhB. When the mass ratio of SCFs/BWO is 1.0%, the photocatalytic performance of SCFs/BWO composite is nearly 3 times of that of the reference BWO. Decoration of BWO by SCFs is a powerful strategy to ameliorate the photocatalytic activity of Bi2WO6.
Source: Journal of Physics and Chemistry of Solids - Category: Physics Source Type: research

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A Batavia hospital has submitted plans for a $7.8 million expansion, a re-do on a plan first announced two years ago. The United Memorial Medical Center project includes a 5,000-square-foot imaging department addition to house a new MRI, CT scanner, and additional X-Ray room plus a new morgue. It’s the first phase of a three-phase plan at the 131-bed hospital, which was initially submitted to the state Depart ment of Health this week in an $18 million proposal that went on to receive approvals…
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