Scalable Production of Hygroscopic Gel Spheres to Enhance Seedling Growth via Atmospheric Water Harvesting and Controlled Fertilizer Release DOI
Xiangbing Wang,

Kanjun Sun,

Hui Peng

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

Atmospheric water harvesting (AWH) technologies offer potential solutions for alleviating agricultural scarcity. However, it faces significant challenges, including environmental compatibility, scalability, and multifunctional integration. Therefore, there is an urgent need novel strategies to improve use efficiency. Herein, natural polysaccharides sodium alginate (SA) thermoresponsive hydroxypropyl cellulose (HPC) are selected as the matrix, with SA cross-linking Ca2+ enable rapid gelation continuous production of shape-controllable spheres. Additionally, carbon black (CB) urea incorporated through physical doping chemical interactions solar energy collection slow-release fertilization. The synergistic effect hygroscopic salt porous matrix resulted in uptake 0.64-3.38 g g-1 at 30-90% relative humidity. photothermal CB, combined low-temperature phase transition HPC, facilitated desorption solar-driven release, achieving maximum rate 4.07 h-1. Notably, was released from material degraded, gradually discharged, release 224.6 ± 5.2 mg kg-1 over 30 days, providing sustained support crop growth. This innovative approach provides sustainable geographically unconstrained solution management arid regions.

Язык: Английский

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

и другие.

Science Advances, Год журнала: 2025, Номер 11(20)

Опубликована: Май 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.

Язык: Английский

Процитировано

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

Xiaoyang Fang,

Chen Hu

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 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.

Язык: Английский

Процитировано

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

и другие.

Desalination, Год журнала: 2025, Номер unknown, С. 119024 - 119024

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

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

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Май 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.

Язык: Английский

Процитировано

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

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 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.

Язык: Английский

Процитировано

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

и другие.

Nano Energy, Год журнала: 2025, Номер unknown, С. 111182 - 111182

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Strategic Weakening for Holistic Strengthening: Overstrain-Driven Synchronous Strengthening-Toughening in Sustainable Rubber via “Weak” Non-Covalent Network DOI

Wei-Chen Zhou,

Xueqin Gao, Jiahao Li

и другие.

Materials Horizons, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Can weakness drive strength? Strategically weakened non-covalent networks enable overstrain-driven strengthening and toughening in epoxidized natural rubber, redefining the design of high-performance sustainable rubber.

Язык: Английский

Процитировано

0
Scalable Production of Hygroscopic Gel Spheres to Enhance Seedling Growth via Atmospheric Water Harvesting and Controlled Fertilizer Release DOI
Xiangbing Wang,

Kanjun Sun,

Hui Peng

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 29, 2025

Atmospheric water harvesting (AWH) technologies offer potential solutions for alleviating agricultural scarcity. However, it faces significant challenges, including environmental compatibility, scalability, and multifunctional integration. Therefore, there is an urgent need novel strategies to improve use efficiency. Herein, natural polysaccharides sodium alginate (SA) thermoresponsive hydroxypropyl cellulose (HPC) are selected as the matrix, with SA cross-linking Ca2+ enable rapid gelation continuous production of shape-controllable spheres. Additionally, carbon black (CB) urea incorporated through physical doping chemical interactions solar energy collection slow-release fertilization. The synergistic effect hygroscopic salt porous matrix resulted in uptake 0.64-3.38 g g-1 at 30-90% relative humidity. photothermal CB, combined low-temperature phase transition HPC, facilitated desorption solar-driven release, achieving maximum rate 4.07 h-1. Notably, was released from material degraded, gradually discharged, release 224.6 ± 5.2 mg kg-1 over 30 days, providing sustained support crop growth. This innovative approach provides sustainable geographically unconstrained solution management arid regions.

Язык: Английский

Процитировано

0