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      Preparation and characterization of a low-cost, novel steam-activated bamboo charcoal (BC) and poly(methacrylate) (PMAA) bound with chitosan (CTS) to form chitosan/bamboo charcoal/poly(methacrylate) (CTS/BC/PMAA) composite beads is reported for the first time in this paper. The characteristics are revealed by techniques such as X-ray photoelectron spectroscopy (XPS), thermal gravimetric analy

    • Abstract

       

      Preparation and characterization of a low-cost, novel steam-activated bamboo charcoal (BC) and poly(methacrylate) (PMAA) bound with chitosan (CTS) to form chitosan/bamboo charcoal/poly(methacrylate) (CTS/BC/PMAA) composite beads is reported for the first time in this paper. The characteristics are revealed by techniques such as X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC), scanning electron microscopy (SEM), Brunauer Emmett Teller (BET), solution pH and pH at pointof zero charge (pH$_{\rm pzc}$). The composite beads possessed a dominant acidic surface group of 0.663 mmol g$^{−1}$, as revealed by Boehm titration method. This acidity was confirmed by its solution pH of 6.46; pH$_{\rm pzc}$ of 6.70 and increase in oxygen surface via XPS analysis. N2 adsorption–desorption isotherms at 77 K of the beads revealed high BET surface area (SA) of 681.15 m$^2$ g$^{−1}$. Langmuir model affords a SA of 773.34 m$^{2}$ g$^{−1}$. SEM showed the microporous nature of the composite beads. The properties of CTS/BC/PMAA composite beads were compared to CTS/BC and neat BC. Thermal stability and successful coating of 5.1 wt% of PMAA and 6.8 wt% of CTS to CTS/BC/PMAA beads were shown by DSC and TGAanalyses. The composite beads showed low carbon particle released at pH 7.4 and 6.8. Furthermore, dynamic adsorptionrevealed that CTS/BC/PMAA composite beads can be used to capture a polar substance, such as creatinine.

    • Author Affiliations

       

      DOROTHY CAMINOS-PERUELO1 2 WEI-CHIEH WANG3 TSUNG-SHUNE CHIN4 REGINA C SO2 RONALDO M FABICON2 MING-FA HSIEH5

      1. Chemistry Department, Xavier University–Ateneo de Cagayan, 9000 Cagayan de Oro City, Philippines
      2. Department of Chemistry, Ateneo de Manila University, 1108 Quezon City, Philippines
      3. ITRI South, Industrial Technology Research Institute, Tainan City 734, Taiwan
      4. Department of Materials Science and Engineering, Feng Chia University, Taichung City 40724, Taiwan
      5. Department of Biomedical Engineering, Center for Nanotechnology, Chung Yuan Christian University, Taoyuan City 32023, Taiwan
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  • Bulletin of Materials Science | News

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