No, the Planck volume is not specifically the volume of a photon. The Planck volume is a fundamental unit of volume in physics, derived from the Planck length, which is the scale at which quantum gravitational effects are expected to become significant. It is defined as the volume occupied by a cube with sides equal to the Planck length, which is approximately 1.6 x 10^(-35) meters.
A photon, on the other hand, is a fundamental particle of light and other forms of electromagnetic radiation. It does not have a well-defined volume in the classical sense, as it is described by quantum mechanics and is typically treated as a point particle. The volume of a photon is not directly related to the Planck volume.