In this work, we present a new, facile and low-cost method to synthesize TiO2–wood charcoal composites
photocatalysts (denoted as TiO2–WC) by using the wood tissue as charcoal resources and bio-template.
TiO2–WC was prepared by the dip-sol–gel method, which was followed by calcination. The prepared
photocatalysts were characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM),
transmission electron microscopy (TEM), N2 adsorption/desorption measurement, element analysis and
X-ray photoelectron spectroscopy (XPS). The results showed that titania particles of 10–20 nm were
dispersed on the wood charcoal which had a mimicked wood tissue structure. And the titania in composites
was found to be composed of 75–80 wt% anatase and 20–25 wt% rutile. The mass ratios of wood charcoal
in TiO2–WC were 28.20–39.94 wt%. The adsorption ability and photocatalytic activity of the prepared
TiO2–WC composites were evaluated by the removal ratio of bisphenol A (BPA). The results showed that
the prepared TiO2–WC composites had extraordinary adsorption ability for BPA and good photocatalytic
activity. The hydrophobic BPA in water can be efficiently removed by adsorption and photocatalytic
degradation on TiO2–WC composites synergistically
In this work, we present a new, facile and low-cost method to synthesize TiO2–wood charcoal compositesphotocatalysts (denoted as TiO2–WC) by using the wood tissue as charcoal resources and bio-template.TiO2–WC was prepared by the dip-sol–gel method, which was followed by calcination. The preparedphotocatalysts were characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM),transmission electron microscopy (TEM), N2 adsorption/desorption measurement, element analysis andX-ray photoelectron spectroscopy (XPS). The results showed that titania particles of 10–20 nm weredispersed on the wood charcoal which had a mimicked wood tissue structure. And the titania in compositeswas found to be composed of 75–80 wt% anatase and 20–25 wt% rutile. The mass ratios of wood charcoalin TiO2–WC were 28.20–39.94 wt%. The adsorption ability and photocatalytic activity of the preparedTiO2–WC composites were evaluated by the removal ratio of bisphenol A (BPA). The results showed thatthe prepared TiO2–WC composites had extraordinary adsorption ability for BPA and good photocatalyticactivity. The hydrophobic BPA in water can be efficiently removed by adsorption and photocatalyticdegradation on TiO2–WC composites synergistically
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