ساخت یک مرحله از شبکه های فیبر بور نیترید

The three dimensional boron nitride monolith with fibers network architecture was fabricated through directly pyrolyzing the assembly of the C3N6H6·2H3BO3 green fibers. This one-step way is superior to the typical techniques using hydrophobic and agglomerate BN micro-/nano- materials to construct architectures. The obtained BN monolith exhibited low density of 92 mg cm−3 with high porosity (94.45 vol%), as well as robust skeleton with high compressive strength (σf = 42.54 kPa) and stiffness (E = 0.475 MPa). The BN network also displayed hydrophobicity with water contact angle of 136.9° and oleophilicity with rapid oil permeation. It showed great performance in oily water treatment. Furthermore, the robust BN network would also be potential as catalyst supports, composites reinforcements and filters in many practical applications.