Organoclays synthesized from Indian bentonite (bent-A) and propyltriphenylphosphonium bromide(PTPB) according to [2] has been studied for its effect on methylene blue adsorption capacitycompared to bent-A due to some of its factors. The results show that, under the survey conditions: timeto reach adsorption equilibrium is 90 minutes (bent-A) and 60 minutes (organoclays)
The amount ofadsorbent which is 0.05 grams gives the largest adsorption capacity and stable adsorptionperformance. The methylene blue adsorption process of bent-A and modulated organoclays describedby the Langmuir adsorption isothermal model, which has determined that the maximum absorptioncapacity of bent-A and organoclays is 28.09 mg/g and 384.60 mg/g respectively and Langmuir constantis: 0.012 and 0.021, respectively. Therefor synthetic organoclays has much better ability to adsorbmethylene blue than bent-A.Keywords: Organoclays, bentonite, propyltriphenylphosphonium bromide,adsorption, methylene blue.