Hierarchical unidirectional fluidic solar-electro-thermal evaporator for all-day efficient water purification

Can the Interfacial Solar Vapor Generation Performance Be Really “Beyond” Theoretical Limit?

“…The device features a serpentine and unidirectional fluidic structure, enabling efficient and clean water production throughout the day. [ 99 ] The serpentine layout controls Joule heating's electrical current, while the unidirectional fluidic design controls salt ion flow, as shown in Figure 8 a. As a result of the key synergistic effect, the device can continuously extract water from a 6.0% brine solution under 3 suns for 8 h with a salt‐free surface, and it can achieve an unusually high rate of evaporation 7.88 kg m −2 h −1 under solar‐electro‐thermal mode (1 sun‐2.0 A).…”

“…a) Schematic of a hierarchical solar‐electro‐thermal membrane and its evaporation rate under varied solar‐electro‐thermal modes. [ 99 ] b) Schematic representation of photo‐electro‐thermal evaporator with increasing input voltage and evaporation rate. [ 100 ] c) The day/night cycle of photo‐electro‐thermal conversion in an evaporation system.…”

A highly efficient and sustainable photoabsorber in solar-driven seawater desalination and wastewater purification

“…Salt fouling is the main challenge in ISSG, in which saturated salt ions are converted to crystals in the channels and pores of a photoabsorber, 81,82 which can lead to a noticeable reduction in the evaporation ux and degradation of the photoabsorber. 83,84 For this purpose, the performance of CPC1 as the best photoabsorber was continuously tested during 10 cycles under 1 sun illumination (Fig. 8a).…”