Turing-type nanochannel membranes with extrinsic ion transport pathways for high-efficiency osmotic energy harvesting DOI Creative Commons

Kehan Zou,

Haoyang Ling,

Qingchen Wang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 26, 2024

Two-dimensional (2D) nanofluidic channels with confined transport pathways and abundant surface functional groups have been extensively investigated to achieve osmotic energy harvesting. However, solely relying on intrinsic interlayer results in insufficient permeability, thereby limiting the output power densities, which poses a significant challenge widespread application of these materials. Herein, we present nanoconfined sacrificial template (NST) strategy create crafted channel structure, termed as Turing-type nanochannels, within membrane. Extrinsic interlaced are formed between lamellae using copper hydroxide nanowires templates. These nanochannels significantly increase areas, resulting 23% enhancement ionic current while maintaining cation selectivity 0.91. The density nanochannel membrane increases from 3.9 5.9 W m−2 remains stable for at least 120 hours. This exhibits enhanced applicability real saltwater environments across China, achieving densities 7.7 natural seawater 9.8 salt-lake brine. work demonstrates promising potential Turing-channel design conversion field. High permselectivity nanofluidics conversion. Here, authors construct two dimensional provide extrinsic improve both ion flux, efficient

Language: Английский

Customizable Twisted Nanofluidic Cellulose Fibers by Asymmetric Microfluidics for Self‐Powered Urine Monitoring DOI

Zewan Lin,

Xiaotong Fu,

Tingting Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract The unique selective ion‐transport characteristics of nanofluids make them applicable in energy harvesting and sensing. However, developing scalable, self‐powered nanofluidic devices remains challenging due to high cost, processing complexity, reliance on external power sources. In this work, surface‐twisted, internally aligned algae fibers (twisted fibers) are fabricated using an asymmetric flow field regulate the assembly process cellulose nanofibers. Unlike from symmetrical process, flow‐mediated twisted exhibit a significantly reduced diameter (33.6–20.4 µm), increased packing density (0.87–1.47 g cm −3 ), superior fractured stress (249.4–468.5 MPa), enhanced Herman's orientation parameter (from 0.77 0.89). Importantly, demonstrate energy‐harvesting up 12.87 W m −2 under 50‐fold salinity gradient can serve as urine monitors, effectively distinguishing infants' urination motility behaviors alerting saturation ionic conductivity (7.8 mS −1 ) at dilute electrolyte concentrations. This study provides novel design concept for biomass‐based health sensing system.

Language: Английский

Citations

4
Multilevel Geometric Optimization in Nanochannel Membranes for Osmotic Energy Conversion DOI
Tianliang Xiao, Yu Wang,

Xuejiang Li

et al.

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123912 - 123912

Published: Feb. 1, 2025

Language: Английский

Citations

0
A Mechanically Robust, Extreme Environment-Stable, and Fast Ion Transport Nanofluidic Fiber DOI
Lianmeng Si, Rui Song, Hong Xiao

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Constructing mechanically strong and environmentally stable nanofluidic fibers with excellent ion transport remains a challenge. Herein, we design robust aramid nanofiber/carboxylated nanofiber (ANF/cANF) hybrid fiber high ionic conductivity via wet spinning-induced orientation strategy. Benefiting from the oriented structure interfacial interactions of filaments, ANF/cANF exhibits tensile strength 276.8 MPa. Carboxylation nanochannels dramatically reduce charge transfer resistance, resulting in conductivity. As result, obtains 5-fold increase compared to that disordered fiber. Notably, maintains its structural integrity mechanical properties after 90 days immersion water. Additionally, it retains favorable surface-charge-dominated capabilities even under extreme conditions, including exposure acids, alkalis, ethanol, as well treatments at (150 °C) low (-196 temperatures.

Language: Английский

Citations

0
Biomass-Derived Gradient and Aligned Structured Aerogel for Sustainable Agricultural Irrigation DOI
Lanyue Zhang,

Zhanhong Yuan,

Xiaotong Fu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Interface evaporation-driven hydroelectric systems integrating water purification and energy collection offer the potential for sustainable agricultural irrigation. However, achieving high evaporation rates efficient harvesting poses challenges, particularly in optimizing transport. This study develops a gradient-aligned structured aerogel (GA aerogel), composed of biomass materials such as cellulose chitosan, which utilizes transport through aligned channels, unique ion management nanoscale chitosan's ability to reduce consumption, thereby enhancing performance. The GA achieves solar absorption rate 91.4%, an 2.5 kg m–2 h–1, output power 680 nW cm–2, stable operation over 120 h. Furthermore, by series array with capacitive storage, system harvested electrical irrigate plants purified water, promoting agriculture providing insights designing biomass-based evaporators.

Language: Английский

Citations

0
Light-Boosted Simultaneous Acid and Salinity Gradient Energy Recovery from Wastewater via a Nanochannel Membrane with Multi-Objective Ion Separation Ability DOI

Jinming Han,

Bo Lv, Jin Wang

et al.

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123670 - 123670

Published: April 1, 2025

Language: Английский

Citations

0
Biomass-Based Functional Composite Resins with Recyclable and Shape Memory Properties DOI
Shenglong Liao, Shuying Zhong,

Can Sun

et al.

Biomacromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

A key challenge in developing advanced functional thermosets lies designing molecular architectures capable of integrating different specific performances into one material to meet diverse application demands. Here, a chitosan-derived trifunctional compound containing maleimide groups was used directly cross-link tung oil-based polymer for fabricating multifunctional composite bioresins with reversible Diels-Alder bonds. The cross-linking networks within resins were featured stress relaxation, thermal reprocessability, and recyclability. retro D-A reaction at relatively high temperatures provided the dynamic characteristics while ensuring their dimensional stability. Moreover, chitosan enhanced mechanical properties forming supramolecular hydrogen bonds via its abundant amino/hydroxyl groups, realizing shape memory resins. Furthermore, synergistic interaction between bonding also imparted proton conductivity This work design paradigm that harmonizes integration fully biomass resins, aiming high-value applications.

Language: Английский

Citations

0
Cellulose Nanocrystal Composite Membrane Enhanced with In Situ Grown Metal–Organic Frameworks for Osmotic Energy Conversion DOI Open Access
Xiuxiu Wang, Minmin Li, Yüting Xiong

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

Access to clean and renewable energy, osmotic energy from salinity gradient difference, for example, is central the sustainability of human civilization. Despite numerous examples nanofluidic membranes conversion, one produced abundant biomass resources remains largely unexplored. In this work, cotton-derived cellulose nanocrystals (CNCs) are employed fabricate a membrane by self-assembly with polyvinyl alcohol (PVA) subsequent in situ growth metal-organic framework (MOF), UiO-66-(COOH)

Language: Английский

Citations

2
Chitin Exfoliation Nanoengineering for Enhanced Salinity Gradient Power Conversion DOI
Ting Huang,

Zhijiang Xie,

Siqi Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Rapid advancements in nano‐exfoliation and dissolution strategies have effectively disassembled hierarchical biomass materials into nanosheets, nanofibers, even atomic‐scale molecular chains, making them highly applicable osmotic energy harvesting. However, sub‐nanosheets, situated between chains remain unexplored due to the demanding nature of their preparation methods. Herein, a pseudosolvent‐driven programmable ion intercalation‐exfoliation strategy is developed that triggers exfoliation along lowest crystal plane (010), as simulations confirm. This method allows for controlled chitin assemblies ranging from nanofibers sub‐nanometer sheets chains. Specifically, compared nanofibrils, sheet interfacial assembly exhibits higher surface charge density interplanar spacing, leading 2.3‐fold increase transport flux while maintaining high‐performance selective behavior, confirmed by both experiments scale simulations, respectively. These enhancements result superior ionic conductivity power conversion performance (8.45 W m −2 ) under 50‐fold salinity gradient, surpassing commercial standards (5.0 other all‐biomass membrane systems (Max. 2.87 ). work provides insights at enhancing

Language: Английский

Citations

1
Turing-type nanochannel membranes with extrinsic ion transport pathways for high-efficiency osmotic energy harvesting DOI Creative Commons

Kehan Zou,

Haoyang Ling,

Qingchen Wang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 26, 2024

Two-dimensional (2D) nanofluidic channels with confined transport pathways and abundant surface functional groups have been extensively investigated to achieve osmotic energy harvesting. However, solely relying on intrinsic interlayer results in insufficient permeability, thereby limiting the output power densities, which poses a significant challenge widespread application of these materials. Herein, we present nanoconfined sacrificial template (NST) strategy create crafted channel structure, termed as Turing-type nanochannels, within membrane. Extrinsic interlaced are formed between lamellae using copper hydroxide nanowires templates. These nanochannels significantly increase areas, resulting 23% enhancement ionic current while maintaining cation selectivity 0.91. The density nanochannel membrane increases from 3.9 5.9 W m−2 remains stable for at least 120 hours. This exhibits enhanced applicability real saltwater environments across China, achieving densities 7.7 natural seawater 9.8 salt-lake brine. work demonstrates promising potential Turing-channel design conversion field. High permselectivity nanofluidics conversion. Here, authors construct two dimensional provide extrinsic improve both ion flux, efficient

Language: Английский

Citations

1