Nikitina Nadezhda V. RussiaSaratovSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia kazarinovia@mail.ru Author's articles Sorbents Based on Natural Bentonites Modified with Iron (III) and Aluminum Polyhydroxocations by the Sol-Gel Method Sorbents Based on Natural Bentonites, Modified by Polyhydroxocationes Zirconium(IV), Aluminum and Iron(III) by the «Coprecipitation» Method Adsorption of organic reagents by natural bentonites modified with aluminum and iron (III) polyhydroxocations