The combination of zinc oxide (ZnO) and graphite provides a promising approach for technol. applications, particularly in the field of gas sensors, as anode material for lithium-ion batteries and also as photocatalyst. Versatile strategies exist to combine ZnO and graphite. Here, we report on 2 novel, facile, and environmentally friendly 1-pot synthesis routes yielding highly dispersed spherical ZnO nanoparticles with an average particle diameter of ∼5 nm supported by exfoliated graphite sheets. For both preparation methods, the ultrasound-assisted synthesis does not result only in high yield but also in the opportunity for industrial scale-up. The composites are produced via a facile synthesis process and provide also a higher ZnO content and a higher surface coverage than other composites as previously reported by this group. Furthermore, we introduce a convenient simplified method to monitor and to determine the ultrasound-assisted exfoliation of graphite and its layer thickness, by taking only 4 parameters into account-namely the d. of the substrate, sp. surface area of the initial and of the exfoliated substrate, and the concentration of the adsorbed particles. By applying tailored parameters, the here-derived equation can be applied for various composites including adsorbed particles on the substrate.