An Electrochemical Sensor Based on Reduced Graphene Oxide and Copper Nanoparticles for Monitoring Estriol Levels in Water Samples after Bioremediation

Water contamination from endocrine disruptors has become a major problem for health issues. Estriol is hormone often detected in several aquatic matrices, due to the inefficient removal of such compounds through conventional water treatment methods. Therefore, there continuous need develop new, efficient, and low-cost methods this removal, as well analytical devices able detect estriol at low concentrations. In present study, we report use Eichhornia crassipes (water hyacinth) phytoremediation agent aqueous addition newly developed electrochemical sensor based on reduced graphene oxide copper nanoparticles quantification monitoring tool hormone. The presented linear detection region 0.5 3.0 μmol L−1, with limits 0.17 L−1 0.56 respectively. Phytoremediation experiments were conducted 2 L beakers reducing levels studied. hyacinth was reduce contaminant by approximately 80.5% 7 days below less than 9 days, which good alternative decontamination disruptor. Due hydrophobicity estriol, probable mechanism involved bioremediation process rhizodegradation, decrease pH that contained plants indicated possible formation biofilms roots.