Ice‐Confined Cryo‐Polymerization of Sponge‐Like Hydrogels with Self‐Adapting Channel for Solar Water Purification DOI
Changjun Li,

Xiaoyang Fang,

Chen Hu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Abstract Polymer hydrogels are widely used in solar‐driven water evaporation due to their controllable vaporization enthalpy, but the low transport rates restrict application. Here, a sponge‐like polyacrylamide/carbon nanotube hydrogel is prepared by ice‐confined cryo‐polymerization, which possesses micro‐size and non‐swelling skeleton, exhibits both sponge behaviors such as excellent squeezability superior capabilities about three orders of magnitude higher than that conventional hydrogels. Moreover, can spontaneously regulate size internal channels adjust capillary force thus they support rate high 36.11 kg m −2 h −1 under collecting lens. Furthermore, show collection 5.55 g fog flow collected be quickly released squeezing. The cryo‐polymerization provides new way develop distinctive materials combining advantage sponge.

Language: Английский

A skin-mimicking multifunctional hydrogel via hierarchical, reversible noncovalent interactions DOI Creative Commons
Xingkui Guo, Songlin Zhang, Shubham Patel

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(20)

Published: May 16, 2025

Artificial skin is essential for bionic robotics, facilitating human skin–like functions such as sensation, communication, and protection. However, replicating a skin-matched all-in-one material with excellent mechanical properties, self-healing, adhesion, multimodal sensing remains challenge. Herein, we developed multifunctional hydrogel by establishing consolidated organic/metal bismuth ion architecture (COMBIA). Benefiting from hierarchical reversible noncovalent interactions, the COMBIA exhibits an optimal combination of functional particularly its integrated including unprecedented stretchability, fracture toughness, resilience. Furthermore, these hydrogels demonstrate superior conductivity, optical transparency, freezing tolerance, adhesion capability, spontaneous electrical self-healing. These unified render our exceptional properties shape adaptability, skin-like perception, energy harvesting capabilities. To potential applications, artificial using was configured stimulus signal recording, which, promising soft electronics platform, could be used next-generation human-machine interfaces.

Language: Английский

Citations

0
Hofmeister effect enhanced GO/CNFs bilayer hydrogel for efficient solar-driven desalination and long-term stability DOI
Jiankai Wang, Zhifang Zhao, Zhaorui Qi

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 119024 - 119024

Published: May 1, 2025

Language: Английский

Citations

0
Natural Fiber@MXene‐Engineered Chitosan Aerogels: Thermodynamic‐Transport Synergy for Solar‐Driven Hypersaline Interfacial Evaporation DOI Creative Commons
Qin Su,

Haidi Wu,

Suyang Hou

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Abstract Enhancing interfacial evaporation rates and optimizing energy utilization remain critical challenges in solar‐driven steam generation. Natural fiber@MXene‐engineered chitosan aerogels with hierarchically oriented channels to achieve high‐efficiency generation are developed. The kapok fiber@MXene core–shell units (MKFs) construct photon‐entrapping topological networks that enhance light absorption while simultaneously reinforcing the aerogel's structural integrity durability for practical applications. microchannels establish thermodynamic potential gradients, facilitating spontaneous capillary‐driven water replenishment environmental thermal harvesting. Both experimental results COMSOL multiphysics simulations systematically demonstrate hierarchical pore transport, improve solar‐thermal/environmental synergy, promote downward diffusion of concentrated ions from surface, achieving an rate up 4.40 kg m −2 h −1 efficient salt rejection. Long‐term outdoor tests various corrosive wastewater solutions further validate evaporation. This study provides a theoretical foundation understanding interrelation between solar absorption, aerogel evaporators fiber‐pore architectures.

Language: Английский

Citations

0
Thermoresponsive Aerogel Enabling Ultrafast Adsorption-Release Cycles for Atmospheric Harvesting DOI
Yiyang Yu, Weidong Gu, Kunyan Sui

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

The key bottleneck in the atmospheric water harvesting field lies developing high-performance adsorbent materials capable of effectively adsorbing and releasing under low humidity conditions. In this study, we successfully developed a novel hygroscopic moisture-absorbing gel (HMA), composite material combining biomass-derived nanofibrillated cellulose with thermoresponsive hydroxypropyl (HPC) network, designed for encapsulation lithium chloride. HMA leverages its hydrophilic network to rapidly adsorb retain at room temperature, while properties HPC enable efficient release through hydrophobic mechanism mild heating results demonstrated that exhibited saturated absorption capacities 0.62 1.08 g g-1 RH 30 50%, respectively. Furthermore, it released 80% adsorbed within just min. addition, excellent stability mechanical strength all-climate conditions, an average 7.01 L kg-1 being produced day 12 cycles. summary, presents sustainable strategy arid regions.

Language: Английский

Citations

0
Hydrogel Solar Evaporator with a Sodium Sulfonate Electrolyte Backbone Enabling Continuous High-Salinity Desalination and Energy Generation DOI

Xinyu Jing,

Fangfei Liu,

Yancai Li

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111182 - 111182

Published: May 1, 2025

Language: Английский

Citations

0
Ice‐Confined Cryo‐Polymerization of Sponge‐Like Hydrogels with Self‐Adapting Channel for Solar Water Purification DOI
Changjun Li,

Xiaoyang Fang,

Chen Hu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Abstract Polymer hydrogels are widely used in solar‐driven water evaporation due to their controllable vaporization enthalpy, but the low transport rates restrict application. Here, a sponge‐like polyacrylamide/carbon nanotube hydrogel is prepared by ice‐confined cryo‐polymerization, which possesses micro‐size and non‐swelling skeleton, exhibits both sponge behaviors such as excellent squeezability superior capabilities about three orders of magnitude higher than that conventional hydrogels. Moreover, can spontaneously regulate size internal channels adjust capillary force thus they support rate high 36.11 kg m −2 h −1 under collecting lens. Furthermore, show collection 5.55 g fog flow collected be quickly released squeezing. The cryo‐polymerization provides new way develop distinctive materials combining advantage sponge.

Language: Английский

Citations

0