Innovative comparable study for application of iron oxyhydroxide and manganese dioxide modified clinoptilolite in removal of Zn(II) from aqueous medium

•Applications of new methods for removal of zinc metals ions from aqueous medium.•Modification of microporous clinoptilolite framework improves uptake capacity.•Efficiencies of modified clinoptilolite for removal of Zn(II) > 99.5%.•Properties of clinoptilolite structure play an important role in adsorption process.•Characterization and study of kinetic models for interpretation of results.