author = "Marques, Susana C. R. and Marcuzzo, Jossano Saldanha and Baldan, 
                         Maur{\'{\i}}cio Ribeiro and Mestre, Ana S. and Carvalho, Ana 
          affiliation = "{Universidade de Lisboa} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Universidade de Lisboa} and {Universidade de 
                title = "Pharmaceuticals removal by activated carbons: Role of morphology 
                         on cyclic thermal regeneration",
              journal = "Chemical Engineering Journal",
                 year = "2017",
               volume = "321",
                pages = "233--244",
                month = "Aug.",
             keywords = "Activated carbon, Adsorption from solution, Clofibric acid, 
                         Morphology, Paracetamol, Thermal regeneration.",
             abstract = "This work aims to evaluate the performance of activated carbons as 
                         reusable adsorbents of pharmaceutical compounds. To achieve this 
                         objective, the behaviour of carbons with different morphologies 
                         (powdered, granular and cloth) in the adsorption of paracetamol 
                         and clofibric acid from aqueous solution was studied; as well as 
                         the thermal regeneration of paracetamol saturated activated 
                         carbons at 400 and 600 C. For that, the properties of the carbon 
                         materials were characterized by N2 and CO2 adsorption, pHPZC, XPS, 
                         TG, XRD and SEM. Kinetic results showed the importance of 
                         supermicropore volume for the diffusion of the probe molecules 
                         towards the adsorption active sites, and the negative effect of 
                         granular form which led to significantly lower adsorption rates. 
                         Paracetamol adsorption followed a Langmuir mechanism in almost all 
                         cases, whereas clofibric acid adsorption generally occurred 
                         through a more complex mechanism. This behaviour was explained 
                         considering the nature of the clofibric acid species present in 
                         solution. This compound was always the most adsorbed molecule, 
                         reaching a maximum adsorption capacity of \∼500 mg 
                         dm\−3 in the case of carbon cloth. Thermal regeneration 
                         proved to be an efficient methodology to recover the porosity of 
                         the granular and cloth paracetamol exhausted activated carbons. 
                         After the second regeneration treatment at 400 C both activated 
                         carbons retained around 57% of their initial paracetamol uptake. 
                         The conjugation of the adsorption and regeneration results pointed 
                         out the benefits of the carbon cloth (in felt form) morphology 
                         which, being an easy handling sample, gathered the performance of 
                         the best powdered sample assayed in adsorption experiments, with 
                         the behaviour of granular carbon upon regeneration.",
                  doi = "10.1016/j.cej.2017.03.101",
                  url = "http://dx.doi.org/10.1016/j.cej.2017.03.101",
                 issn = "1385-8947",
             language = "en",
           targetfile = "marques_phama.pdf",
        urlaccessdate = "15 abr. 2021"