We used nanoparticles and iron ore particles to purify water from oil. You, too, can use the mined ore for these purposes. This substance is produced in unlimited quantities. Look at our work on this topic. There are video tests in my profile.

Dear Lade, you can try iron oxide nanoparticles for water purification. Actually, I can not understand your question. Will you synthesis it with green chemistry approach or traditional chemical approach? If you prefer green synthesis, there are lot of article about that. I used olive leaf extract for that. These leaves have oleic acid and this chemical helps to synthesis of iron oxide nanoparticles easily. If you choose chemial way, then you can use FeCl3.6H2O and FeCl2.4H2O. For base solution, you can try NaOH. However, Ammonium hydoxide is the best. Be carefull that synthesis environment has not O2. Because, nanoparticles may be oxidized. Finally, You can natural polymer such as chitosan as a polymer. Chitosan has more advantages. It is not a toxic product and you can bind many other chemical on it.

Best regards.

Generally iron (II) and iron (III) salts and a precipitating agent are used to fabricate iron oxide nanoparticles. You can chose a polymer having the ability for binding iron oxide and to cure the structure to form molded mesh and remaining active moieties for adsorption of the pollutant from the water.