In summary, in the present work we have illustrated that laser treated graphene oxide shows an excellent adsorption capacity towards methylene blue dye in water. In particular, it AZD8055 was found that controlling different parameters during the laser irradiation time it is possible to obtain GO sheets with different degrees of reduction, which could enhance more or less the removal of MB. We observed that both GO and rGO are excellent adsorbents towards MB and we noticed that rGO-30 has a higher adsorption capacity than GO. The enhancement observed for moderately irradiated GO is mainly due to its different morphology. In particular, endotherms was found that the laser treated GO revealed a discontinuous surface where some holes have been detected contributing to an increase of the available rGO surface area (higher adsorption capacity). In our previous work , we reported that upon laser ablation it is possible to obtain sheets of porous graphene in a way similar to the coal gasification mechanism. In particular, sp3 carbon atoms of the GO sheet react with H2O vapour, originated during the laser irradiation, which lead to the formation of CO and CO2 molecules, which leave behind a distribution of carbon vacancies and creating nanopores.