Iranian Research Organization for Science and Technology Journal of Particle Science and Technology 2423-4087 5 2 2019 08 01 Iranian natural zeolite particle modification: Green synthesis, characterization, and oil spill remediation 77 90 833 10.22104/jpst.2019.3517.1146 EN Shohreh Saffarzadeh-Matin Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran 0000-0002-8119-7401 Maryam Khandan Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran Anvar Shalmashi Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran Journal Article 2019 03 02 In the present work, Iranian natural zeolite particles (NZ) as an abundant and low-cost resource were modified by chemical covalent attachments of commercially available stearic acid (SA) with tunable hydrophobic/hydrophilic properties. The versatile, simple, and green technique of mechanogriding was performed for the hydrophobic derivatisation of NZ. The NZ and as-prepared modified particles were thoroughly characterized by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), Barret-Joyner-Halenda (BJH), and static water contact angle (WCA) measurements. TG-DTA results revealed the high thermal stability of the modified sample up to 490°C. The flake-like structures of functionalized NZ were discrete and no longer aggregated due to modification. The absorbing function of the modified NZ was evaluated by its removal of oil from a stable crude oil emulsion in water. https://jpst.irost.ir/article_833_013a006f03dbc5392effeb8f18fda755.pdf