Dendritic fibrous nanosilica (DFNS), also known as KCC-1, has a unique fibrous morphology and a high surface area with improved accessibility to the internal surface, tunable pore size and volume, controllable particle size, which made it useful in the fields of energy, environment, and health. DFNS showed interesting applications in solar energy harvesting (water splitting for hydrogen), energy storage (battery), CO2 capture, drug delivery, sensing etc. It is truly an all-in-one nanomaterial.