One-step construction of carbon nanoparticle/graphene oxide nanofiltration membranes with uniform sandwich structure for enhanced water purification DOI Creative Commons
Xun Zhang, Ziru Sang, Xue Li

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(13), P. 9618 - 9626

Published: Jan. 1, 2025

Graphene-based membranes have great potential for water purification. However, it is still a challenge to achieve high solute rejection at flow by controlling the permeation channel. Herein, carbon nanoparticles (CNPs) were uniformly sandwiched between graphene oxide (GO) sheets one-step vacuum-assisted filtration of CNPs and GO mixed solution, resulting in formation CNPs/GO composite nanofiltration with uniform sandwich structure. The addition membrane could help form continuous transverse channel greatly increase flow. results showed that mass ratio 20% exhibited best performance. pure rate was 49.9 L m-2 h-1, which 21 times higher than membrane. four different organic dyes exceeded 97%. methylene blue (MB) 94.7% after 8 recycling cycles. In addition, allow penetration salts, makes them promising dye wastewater desalination. This study provides simple effective strategy tune microstructure increases understanding important role particles achieving better performance membranes.

Language: Английский

One-step construction of carbon nanoparticle/graphene oxide nanofiltration membranes with uniform sandwich structure for enhanced water purification DOI Creative Commons
Xun Zhang, Ziru Sang, Xue Li

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(13), P. 9618 - 9626

Published: Jan. 1, 2025

Graphene-based membranes have great potential for water purification. However, it is still a challenge to achieve high solute rejection at flow by controlling the permeation channel. Herein, carbon nanoparticles (CNPs) were uniformly sandwiched between graphene oxide (GO) sheets one-step vacuum-assisted filtration of CNPs and GO mixed solution, resulting in formation CNPs/GO composite nanofiltration with uniform sandwich structure. The addition membrane could help form continuous transverse channel greatly increase flow. results showed that mass ratio 20% exhibited best performance. pure rate was 49.9 L m-2 h-1, which 21 times higher than membrane. four different organic dyes exceeded 97%. methylene blue (MB) 94.7% after 8 recycling cycles. In addition, allow penetration salts, makes them promising dye wastewater desalination. This study provides simple effective strategy tune microstructure increases understanding important role particles achieving better performance membranes.

Language: Английский

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