A new approach to fabricate superhydrophobic and antibacterial low density isotropic pyrocarbon by using catalyst free chemical vapor deposition

Abstract

Low density isotropic pyrocarbon (LDIP) of a novel “litchi” hierarchical structure with a high degree of crystallinity and graphitization was prepared by a simple, catalyst-free chemical vapor deposition method. The fabricated LDIP coating surface exhibits highly durable and robust superhydrophobic, self-cleaning, water and corrosive liquids repelling and oil-water separating properties. Moreover, the antifouling/antibacterial properties and biocompatibility of LDIP were investigated. The LDIP coated surface can not only effective prevent protein and bacterial (Gram-negative E. coli) adhesion but also has good biocompatibility. This new type of carbon material has great promise for potential applications in waste water treatment and biomedical fields.