Direct synthesis of improved superhydrophobic carbon nitride co-products, and improved superhydroppbic carbon nitride co-products thereof

A method of direct synthesis of co-products of at least a first co-product and a second co-product, wherein the first co-product is superhydrophilic carbon nitride thin film with a water contact angle of 0-5° and the second co-product is superhydrophilic carbon nitride powder, comprising the steps of:

• placing a precursor material on one end of a container, wherein the precursor material is a guanidine,
• placing a glass substrate in the container, wherein the glass substrate is positioned away from the precursor material such that there is a clearance between the precursor material and the glass substrate,
• placing the container in a furnace and subjecting the precursor material to heating, and
• allowing the first co-product to form on the glass substrate and the second co-product to form at the other end of the container.