Fast Seawater Desalination Integrated with Electrochemical CO Reduction.

Coupling desalination with electrocatalytic reactions is an emerging approach to simultaneously addressing freshwater scarcity and greenhouse gas emissions. However, the salt removal rate in such processes is slow, and the applicable water sources are often limited to those with high salt concentrations. Herein, we show high-performance electrocatalytic desalination by coupling with electrochemical CO reduction using a carbon catalyst.

High-Performance Photoelectrochemical Desalination Based on the Dye-Sensitized BiO Anode.

In this work, a solar-driven redox flow desalination system is reported, which combines a solar cell based on a BiO photoanode and a redox flow desalination cell through an integrated electrode. The BiO film was prepared through a simple one-step water bath deposition method and served as a photoanode after the coating of the N719 dye. The activated carbon (AC)-coated graphite paper served as both the integrated electrode and counter electrode.

Photo-Assisted Rechargeable Battery Desalination.

Herein, we propose a novel design of photo-assisted battery desalination, which provides the tri-function within a single device including the photo-assisted charge (electrical energy saving), energy storage, and desalination (salt removal). The photoelectrode (N719/TiO) is directly integrated into the zinc-iodide (Zn-I) battery with the desalination stream in the middle portion of the device. This architecture can provide a reduced energy consumption up to 50%, an energy output of 42 W h mol, and a desalination rate of 13 μg/cm min.