Accelerating solar desalination in brine through ion activated hierarchically porous polyion complex hydrogels

Abstract

Solar-powered water desalination has been considered as one of the most promising solutions to alleviate clean water scarcity. In concentrated brine, the strong hydration ability of ions increases the required...

Metal- and halide-free, solid-state polymeric water vapor sorbents for efficient water-sorption-driven cooling and atmospheric water harvesting

“…Due to the ever-worsening global warming, increasing global population, and steady improvement of life standards, adequate clean water and stable supply of clean energy with low carbon footprint are two key challenges for global sustainable development. [1][2][3][4][5][6][7][8] On the other hand, there is a vast amount of water constantly preserved in the Earth's atmosphere, generically known as atmospheric water, which is equivalent to six times all the water in all the rivers on Earth. 6,9 The capture-release of water vapor has underpinned a number of emerging designs significant to the water-energy nexus, such as sorption-driven heat transformation for cooling and heating, [10][11][12][13][14] atmospheric water harvesting (AWH), [15][16][17][18][19][20][21][22][23][24][25][26][27][28] vapor-sorption-based desalination, 14,29 and air humidity regulation.…”

Light‐responsive bilayered hydrogel for freshwater production from surface soil moisture

“…The internal pore structure of the hydrogels affects the rate of water transport 44–47 . To observe the internal and surface structure of LRBH, the morphology and microstructure of LRBH before and after the introduction of PPy were characterized by scanning electron microscopy (SEM) imaging (Figure 2A–C and Figure S2).…”

Recent developments of hydrogel based solar water purification technology

“…In the next year, the same group reported a PPy/chitosan/PVA hydrogel platform that exhibited an enhanced solar vapor generation capacity of 3.6 kg m −2 h −1 . 137 Recent research on conjugated polymer solar absorbers has been extended to polyaniline (PANI), 149,150 poly(3,4-ethylene dioxythiophene) (PEDOT), 151,152 polydopamine (PDA), 66,153–156 perovskite hole layer material DPP-2T, 157 and covalent organic frameworks (COFs). 122,158 Furthermore, conjugated copolymer materials such as poly(aniline- co -pyrrole) 34 have also shown up in recent research, proving a novel approach for solar water purification by combining the advantages of two polymers.…”