Some materials such as nano silver and nano transition metals impregnated zeolite materials may have extraordinary properties such as antibacterial and antivirus. But they might cause the inhalation toxicity, since the size and surface area are recognized as important determinants for toxicity to human. We report the ZSM-5 zeolite anchored kapok fiber synthesized by hydrothermal reaction. We suggest that self assembly of such functional materials to natural fiber can reduce the inhalation risk

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... nd maximize the functionality of nano materials. To get the clear and smooth surface of the hollow fiber, solvent and acid treatment process had been adopted to remove the lignin and wax layer. The hollow kapok fibers were applied as a template in the hydrothermal reaction for preparation of ZSM-5 zeolite anchored Kapok fiber. The Kapok-ZSM-5 composites were confirmed and characterized by SEM, XRD, TG-DTA and FTIR analysis.