Production of Organo-Bentonites and Their Usage in Pollution Removal Studies

43846

Nowadays, organo-bentonite usage has been growing in many areas. Organo-bentonites are synthesized from bentonites by using solid state reactions or ion-exchange methods. Generally ion-exchange is applied and various organic cations are used. They are displaced with exchangeable cations found in bentonite structure. Organic cation properties and production conditions influence product properties. For instance, when the long chain alkyl ammonium cations are used, depending on the synthesis conditions basal space can be increased greatly, surface properties can change to hydrophobic, surface energy can decrease or surface charge can transform to positive. Many researches are made by using organo-bentonites in different fields such as pollution prevention, environmental improvement, rheological additive production for industrial applications and polymeric nanocomposite production for material science applications. In pollution related researches, the properties of the pollutants in wastes can be different and sorbent structure used should sorb many of these pollutants. Based on this idea, organo-bentonite producability under different experimental conditions is investigated and sorption/adsoption mechanisms of anionic, cationic, or organic pollutants onto these organo-bentonites are determined. Purpose of this study is to contribute literature by providing an overview including important developments about production and sorption studies of organo-bentonites with the help of researches executed so far.

48

Organo , bentonite , quaternary alkylammonium , adsorption , sorption , pollution removal

International journal of advances in engineering and pure sciences

62

International journal of advances in engineering and pure sciences