Application of activated carbon functionalized with graphene oxide for efficient removal of COVID-19 treatment-related pharmaceuticals from water
| Autor: | Eduarda Freitas Diogo Januário, Yasmin Jaqueline Fachina, Gessica Wernke, Gabriela Maria Matos Demiti, Laiza Bergamasco Beltran, Rosângela Bergamasco, Angélica Marquetotti Salcedo Vieira |
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| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
SARS-CoV-2 Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Water General Medicine General Chemistry Pollution Water Purification COVID-19 Drug Treatment Kinetics Pharmaceutical Preparations Charcoal Environmental Chemistry Humans Graphite Adsorption Pandemics Water Pollutants Chemical |
| Zdroj: | Chemosphere. 289 |
| ISSN: | 1879-1298 |
| Popis: | Currently, the COVID-19 pandemic has been increasing the consumption of some drugs, such as chloroquine (CQN) and dipyrone (DIP), which are continuously discharged into water resources through domestic sewage treatment systems. The presence of these drugs in water bodies is worrisome due to their high toxicity, which makes crucial their monitoring and removal, especially by means of advanced technologies. Given this scenario, a new adsorbent material was synthesized through the combination of babassu coconut activated carbon and graphene oxide (GAC-GO). This study was evaluated in batch adsorption processes, aiming at the treatment of water contaminated with CQN and DIP. Characterization analyzes using physicochemical and spectroscopic techniques indicated that the GAC-GO functionalization was successfully performed. The equilibrium time of the adsorption process was 18 and 12 h for CQN and DIP, respectively. Kinetic and isothermal data better fitted to pseudo-second-order and Langmuir models for both drugs. Thermodynamic parameters showed that the process is endothermic and the maximum adsorption capacities of CQN and DIP were 37.65 and 62.43 mg g |
| Databáze: | OpenAIRE |
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