Facing
high-energy radiation exposure in many different situations,
researchers are focused on developing personal protective equipment
against high-energy rays. The design and fabrication of low-density,
self-standing, nontoxic, and flexible high-energy ray shielding materials
have always been a hot issue in the special equipment manufacturing
industry. As key raw materials for high-efficiency X-ray shielding,
high-Z element compounds are nonrenewable resources.
Therefore, their development and application require far-sighted arrangement.
In this work, we demonstrate an easy and general fabrication route
of multifunctional high-Z element compounds/polymer
nanofibrous membranes through electrospinning and subsequent solvothermal
and successive ionic layer adsorption and reaction processes. The
as-fabricated BiOX (X = Cl, Br, I)/WO3/PAN nanofibrous
membrane exhibits an excellent X-ray shielding capability with a mass
attenuation coefficient of 3.55 cm2 g–1 at 83 keV and could achieve a balanced shielding performance by
the introduction of inexpensive iodine elements. Additionally, the
self-standing hybrid nanofibrous membrane also exhibits remarkable
visible-light photocatalytic activities to degrade RhB in aqueous
solution, showing potential in water treatment application and providing
an efficient and economical route for the development, usage, recycling,
and reuse of precious high-Z material-based composites.