Bio-templated fabrication of metal-free boron carbonitride tubes for visible light photocatalysis.

The synthesis of boron carbon nitride (BCN) with special morphologies via a simple pathway is still a major challenge. A novel and facile biotemplating method has been presented to synthesize boron carbon nitride tubes (BCNTs) by using kapok fibers (KFs) as both biotemplates and carbonaceous sources. The BCNT photocatalysts can catalyse hydrogen evolution from water under visible light illumination.