Poly- and perfluorinated compounds (PFCs) are pollutants which is founded in aquatic environment world wide.It is important to develop techniques to treat PFCs because they have toxicity and cause dusease in the human body. In this present investigation, polyaniline (PANI) decorated activated biocha...
Poly- and perfluorinated compounds (PFCs) are pollutants which is founded in aquatic environment world wide.It is important to develop techniques to treat PFCs because they have toxicity and cause dusease in the human body. In this present investigation, polyaniline (PANI) decorated activated biochar (AB) hybrid composite (AB@x%PANI, x = 0%, 25%, 50%, 75%, and 100% of PANI) was fabricated for PFCs adsorption via in situ chemical oxidation and co-precipitation with calcination. The physical and chemical properties of AB@x%PANI before and after adsorption were characterized by FTIR, PXRD, XPS, FE-SEM with EDX, HR-TEM, 13C NMR, and TGA analysis. The adsorption efficiency of the synthesized adsorbent was investigated by conducting batch experiments on the effects of the initial PFCs concentration, contact time, solution pH and coexisting cations using surface water and wastewater. The AB@75%PANI hybrid composite showed higher adsorption capacity for the removal of perfluorooctanoic, perfluorooctanesulfonic, and perfluorohexanesulfonic acids than powdered activated carbon, AB, PANI, AB@25%PANI, and AB@50%PANI. The adsorption isotherm and kinetic results demonstrated that the adsorption system using AB@75%PANI hybrid composite followed pseudo-second-order and Langmuir isotherm models. Adsorption of PFCs using AB@75%PANI is removed through various mechanisms such as hydrophobic interaction, hydrogen bonding, electrostatic attraction and surface complexation in the presence of co-existing cations. This study shed light on a direction to effectively remove PFCs in aquatic environment.
Poly- and perfluorinated compounds (PFCs) are pollutants which is founded in aquatic environment world wide.It is important to develop techniques to treat PFCs because they have toxicity and cause dusease in the human body. In this present investigation, polyaniline (PANI) decorated activated biochar (AB) hybrid composite (AB@x%PANI, x = 0%, 25%, 50%, 75%, and 100% of PANI) was fabricated for PFCs adsorption via in situ chemical oxidation and co-precipitation with calcination. The physical and chemical properties of AB@x%PANI before and after adsorption were characterized by FTIR, PXRD, XPS, FE-SEM with EDX, HR-TEM, 13C NMR, and TGA analysis. The adsorption efficiency of the synthesized adsorbent was investigated by conducting batch experiments on the effects of the initial PFCs concentration, contact time, solution pH and coexisting cations using surface water and wastewater. The AB@75%PANI hybrid composite showed higher adsorption capacity for the removal of perfluorooctanoic, perfluorooctanesulfonic, and perfluorohexanesulfonic acids than powdered activated carbon, AB, PANI, AB@25%PANI, and AB@50%PANI. The adsorption isotherm and kinetic results demonstrated that the adsorption system using AB@75%PANI hybrid composite followed pseudo-second-order and Langmuir isotherm models. Adsorption of PFCs using AB@75%PANI is removed through various mechanisms such as hydrophobic interaction, hydrogen bonding, electrostatic attraction and surface complexation in the presence of co-existing cations. This study shed light on a direction to effectively remove PFCs in aquatic environment.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.