The XRD pattern in Fig. 1A belongs to the prepared zeolite nano particles which has good agreement to JSPDS No. 38–1389 correspond to the crystallite data of clinoptilolite. This confirms that the original used natural zeolite includes slinoptilolite structure phase as major component. All XRD data of the same clinoptilolite sample has been reported in literature [33]. By using the Scherrer equation [34]; d = kλ/β cos θ, the average particles size of the used NCP was estimated in the range of 20–70 nm. In Scherrer equation, d is the average diameter of particles in nm, β is the width of peak cross half of the height in radian, k is the fixed number between 0. 6 up to 1.2, λ is the wavelength of X–ray in Angstrom and θ is the dispersion angle in degree.