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All other chemicals in the study were reagent grade, and they were used without further purification. The powder of 20 to 80 mesh size was dried in an oven at 100 oC for 24 h prior to being used. At the same time, the photocatalytic degradation of TiO 2/BACFs for methylene blue (MB) is also discussed. In order to determine the catalytic performance of TiO 2/ BACFs, the surface structure and characterization of TiO 2/BACFs were addressed in detail. The objective of this study was to prepare TiO 2-loaded activated carbon fibers from liquefied bamboo powder (TiO 2/BACFs) by the sol–gel method.
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This will provide a new method for the preparation of biomass based activated carbon fibers and biomass photocatalytic composite material. In recent years, due to the development of biomass liquefaction technique, the liquefaction of biomass materials has been developed for preparing carbon fibers (Ma and Zhao 2010, 2011). The utilization ratio of raw materials is quite low, which limits the development and application of biomass resources. However, biomass constituents such as cellulose and lignin have been used only to a relatively minor extent. Over the last few decades, some researchers have paid attention to biomass-based activated carbon fibers (Asakura et al. 2004 Okabe et al. 2005 Senthilkumaar et al. 2005 Phan et al. 2006 Tan et al.2007 Zhao et al. 2010). But ACFs as the support are mainly prepared from fossil resources and are adverse to sustainable use of support materials. Activated carbon fibers (ACFs), with good adsorption and uniform pore structure, have been used as a catalyst support for TiO 2 loading (Uraki et al. 2001 Fu et al. 2004 Liu et al. 2006 Mo and Ye 2009 Yao et al. 2010). However, suspension system powder-type TiO 2 photocatalyst degrades more slowly when the target pollutant content is lower (Vinodgopal et al. 1994). Keywords: Bamboo-based activated carbon fibers Nano-TiO 2 Loaded Photocatalyst CharacterizationĬontact information: College of Packaging & Printing Engineering, Tianjin University of Science & Technology, Tianjin 300222, China *Corresponding author: 2 has numerous excellent characteristics, including high oxidative property, good stability, low cost, and non-toxicity. The degradation rate of TiO 2/BACFs for methylene blue (MB) solution reached more than 98% after 7 h of UV illumination. With increased calcination temperature, the contents of element Ti and Ti-O bonds of lattice oxygen on the surface of TiO 2/BACFs increased and then decreased. The surface of TiO 2/BACFs was mainly comprised of C–C, C–O, C=O, and Ti-O bonds. The characteristic absorbance peaks of anatase TiO 2 were observed at 1402 and 541 to 605 cm -1 on the infrared spectrum of TiO 2/BACFs. Anatase TiO 2 film with high photocatalytic activity was formed on the surface of BACFs, and the average crystallite size of the TiO 2 film was 17 to 30 nm. TiO 2/BACFs were prepared by the sol–gel method and characterized by SEM, XRD, FTIR, and XPS. Preparation and Characterization of Nano-TiO 2 Loaded Bamboo-based Activated Carbon Fibers by H 2O Activationĭongna Li, Xiaojun Ma,* Xinyan Liu, and Lili YuĪs the support for loading TiO 2, bamboo-based activated carbon fibers (BACFs) were obtained from Phyllostachys pubescens Mazel after liquefaction using phenol, melt-spinning, curing carbonization, and H 2O activation. The degradation rate of TiO2/BACFs for methylene blue (MB) solution reached more than 98% after 7 h of UV illumination. With increased calcination temperature, the contents of element Ti and Ti-O bonds of lattice oxygen on the surface of TiO2/BACFs increased and then decreased. The surface of TiO2/BACFs was mainly comprised of C–C, C–O, C=O, and Ti-O bonds. The characteristic absorbance peaks of anatase TiO2 were observed at 1402 and 541 to 605 cm -1 on the infrared spectrum of TiO2/BACFs. Anatase TiO2 film with high photocatalytic activity was formed on the surface of BACFs, and the average crystallite size of the TiO2 film was 17 to 30 nm.
![h2o xps peak h2o xps peak](https://www.researchgate.net/publication/325558686/figure/fig2/AS:634033482498049@1528176770852/XPS-spectra-of-the-BN-sample-a-Survey-spectrum-b-B1s-c-N1s-and-d-O1s.png)
TiO2/BACFs were prepared by the sol–gel method and characterized by SEM, XRD, FTIR, and XPS. 9(1), 602-612.Īs the support for loading TiO2, bamboo-based activated carbon fibers (BACFs) were obtained from Phyllostachys pubescens Mazel after liquefaction using phenol, melt-spinning, curing carbonization, and H2O activation. "Preparation and characterization of Nano-TiO2 loaded bamboo-based activated carbon fibers by H2O activation," BioRes.