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Penicillin fermentation residue biochar as a high-performance electrode for membrane capacitive deionization
Membrane capacitive deionization (MCDI) is an efficient desalination technology for brine. Penicillin fermentation residue biochar (PFRB) possesses a hierarchical porous and O/N-doped structure which could serve as a high-capacity desalination electrode in the MCDI system. Under optimal conditions (electrode weight, voltage, and concentration) and a carbonization temperature of 700 °C, the maximum salt adsorption capacity of the electrode can reach 26.4 mg/g, which is higher than that of most carbon electrodes. Furthermore, the electrochemical properties of the PFRB electrode were characterized through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) with a maximum specific capacitance of 212.18 F/g. Finally, biotoxicity tests have showed that PFRB was non-biotoxin against luminescent bacteria and the MCDI system with the PFRB electrode remained stable even after 27 adsorption—desorption cycles. This study provides a novel way to recycle penicillin residue and an electrode that can achieve excellent desalination.
Penicillin fermentation residue biochar as a high-performance electrode for membrane capacitive deionization
Membrane capacitive deionization (MCDI) is an efficient desalination technology for brine. Penicillin fermentation residue biochar (PFRB) possesses a hierarchical porous and O/N-doped structure which could serve as a high-capacity desalination electrode in the MCDI system. Under optimal conditions (electrode weight, voltage, and concentration) and a carbonization temperature of 700 °C, the maximum salt adsorption capacity of the electrode can reach 26.4 mg/g, which is higher than that of most carbon electrodes. Furthermore, the electrochemical properties of the PFRB electrode were characterized through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) with a maximum specific capacitance of 212.18 F/g. Finally, biotoxicity tests have showed that PFRB was non-biotoxin against luminescent bacteria and the MCDI system with the PFRB electrode remained stable even after 27 adsorption—desorption cycles. This study provides a novel way to recycle penicillin residue and an electrode that can achieve excellent desalination.
Penicillin fermentation residue biochar as a high-performance electrode for membrane capacitive deionization
Front. Environ. Sci. Eng.
Liu, Jie (Autor:in) / Ma, Junjun (Autor:in) / Zhong, Weizhang (Autor:in) / Niu, Jianrui (Autor:in) / Li, Zaixing (Autor:in) / Wang, Xiaoju (Autor:in) / Shen, Ge (Autor:in) / Liu, Chun (Autor:in)
01.04.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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