A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Surface Engineering of Electrified MXene Filter for Enhanced Phosphate Removal
https://orcid.org/0000-0002-1106-3766
https://orcid.org/0000-0001-8178-9418
https://orcid.org/0000-0001-8404-3806
The discharge of wastewater contaminated with low concentrations of phosphate can have serious consequences, including environmentally disastrous blooms of algae and harmful concentrations of phosphate in public water sources. Herein, we demonstrate an electrofiltration system with a flow-through configuration that uses an electrified hydroxyl-terminated Ti3C2T x MXene (h-Ti3C2T x ) filter to achieve near complete removal of ultralow concentration phosphate (5 mg P/L). Increasing either the applied voltage or the flow rate increases the phosphate sorption kinetics of the electrified h-Ti3C2T x filter. With a 6 mL/min recirculating flow rate, the h-Ti3C2T x filter exhibits a sorption kinetics of 1.97 h–1 and sorption capacity of 91.8 mg P/g, which was 2.6- and 4.3-fold higher than that of a pristine Ti3C2T x filter, respectively. The enhanced electrofiltration kinetics and capacities are attributed to the synergistic effects of plentiful sites for sorption, electrochemical enhancement, and flow-through design. The mechanism for phosphate sorption combined interlayer diffusion with surface complexation at the outer level in terms of electrostatic attraction and at the inner level in terms of Ti–O–P interactions. Overall, our research elucidates the utilization of a flow-through electrified filter incorporating −OH groups that can boost the sorption kinetics and capacity for phosphate, offering a promising paradigm for efficient water purification.
Surface Engineering of Electrified MXene Filter for Enhanced Phosphate Removal
https://orcid.org/0000-0002-1106-3766
https://orcid.org/0000-0001-8178-9418
https://orcid.org/0000-0001-8404-3806
The discharge of wastewater contaminated with low concentrations of phosphate can have serious consequences, including environmentally disastrous blooms of algae and harmful concentrations of phosphate in public water sources. Herein, we demonstrate an electrofiltration system with a flow-through configuration that uses an electrified hydroxyl-terminated Ti3C2T x MXene (h-Ti3C2T x ) filter to achieve near complete removal of ultralow concentration phosphate (5 mg P/L). Increasing either the applied voltage or the flow rate increases the phosphate sorption kinetics of the electrified h-Ti3C2T x filter. With a 6 mL/min recirculating flow rate, the h-Ti3C2T x filter exhibits a sorption kinetics of 1.97 h–1 and sorption capacity of 91.8 mg P/g, which was 2.6- and 4.3-fold higher than that of a pristine Ti3C2T x filter, respectively. The enhanced electrofiltration kinetics and capacities are attributed to the synergistic effects of plentiful sites for sorption, electrochemical enhancement, and flow-through design. The mechanism for phosphate sorption combined interlayer diffusion with surface complexation at the outer level in terms of electrostatic attraction and at the inner level in terms of Ti–O–P interactions. Overall, our research elucidates the utilization of a flow-through electrified filter incorporating −OH groups that can boost the sorption kinetics and capacity for phosphate, offering a promising paradigm for efficient water purification.
Surface Engineering of Electrified MXene Filter for Enhanced Phosphate Removal
https://orcid.org/0000-0002-1106-3766
https://orcid.org/0000-0001-8178-9418
https://orcid.org/0000-0001-8404-3806
The discharge of wastewater contaminated with low concentrations of phosphate can have serious consequences, including environmentally disastrous blooms of algae and harmful concentrations of phosphate in public water sources. Herein, we demonstrate an electrofiltration system with a flow-through configuration that uses an electrified hydroxyl-terminated Ti3C2T x MXene (h-Ti3C2T x ) filter to achieve near complete removal of ultralow concentration phosphate (5 mg P/L). Increasing either the applied voltage or the flow rate increases the phosphate sorption kinetics of the electrified h-Ti3C2T x filter. With a 6 mL/min recirculating flow rate, the h-Ti3C2T x filter exhibits a sorption kinetics of 1.97 h–1 and sorption capacity of 91.8 mg P/g, which was 2.6- and 4.3-fold higher than that of a pristine Ti3C2T x filter, respectively. The enhanced electrofiltration kinetics and capacities are attributed to the synergistic effects of plentiful sites for sorption, electrochemical enhancement, and flow-through design. The mechanism for phosphate sorption combined interlayer diffusion with surface complexation at the outer level in terms of electrostatic attraction and at the inner level in terms of Ti–O–P interactions. Overall, our research elucidates the utilization of a flow-through electrified filter incorporating −OH groups that can boost the sorption kinetics and capacity for phosphate, offering a promising paradigm for efficient water purification.
Surface Engineering of Electrified MXene Filter for Enhanced Phosphate Removal
Jin, Limin (author) / Ren, Yifan (author) / Zheng, Wentian (author) / Pan, Fei (author) / You, Shijie (author) / Liu, Yanbiao (author)
ACS ES&T Engineering ; 3 ; 2243-2251
2023-12-08
Article (Journal)
Electronic Resource
English
| American Chemical Society | 2024
Filtration of Electrified Solid Particles in a Fibrous Filter
| British Library Online Contents | 2010