Amphiphilic Janus patch-grafted hydrogels for salt-rejecting solar water desalination

Zhu, Jie; Xiao, Zhiyuan; Song, Feiyu; Huang, Xiayun; Chen, Daoyong; Nie, Zhihong

doi:10.1039/d4ta02327g

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02327g

|View full text |Cite

Amphiphilic Janus patch-grafted hydrogels for salt-rejecting solar water desalination

Jie Zhu,

Zhiyuan Xiao,

Feiyu Song

et al.

Abstract: Interfacial solar seawater desalination is considered as one of the most promising sustainable techniques for producing fresh water. Janus hydrogel evaporators with a hydrophobic top layer and a hydrophilic bottom...

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

2025

Publication Types

Select...

Article4

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

FeOOH Quantum Dots Assembled MXene‐Decorated 3D Photothermal Evaporator for Synergy Application in Solar Evaporation and Fenton Degradation

Liu,

Li,

Tian

et al. 2024

Small Methods

View full text Add to dashboard Cite

Solar‐driven water evaporation is considered as the sustainable approach to alleviate freshwater resource crisis through direct use of solar energy. However, it is still challenging to achieve the multifunctional solar evaporators equipped with both high evaporation and purification performance to handle practical complex wastewater. Here, a simple and cost‐effective multifunctional 3D solar evaporator is prepared by alternately decorating the commercial sponge with FeOOH quantum dots (FQDs) supported MXene sheets composites and chitosan hydrogel coatings for enabling the solar water evaporation and organic wastewater photodegradation simultaneously. MXene composites allow the solar evaporator with excellent photothermal conversion performance, the hydrophilic chitosan hydrogel coated interconnecting skeleton structures of sponge serve as the mass transfer and water transport channels. The Fenton‐catalytic FQDs anchored on the MXene sheets surface accept the photo‐generated electrons of MXene sheets to induce the organic pollutant photo‐Fenton degradation reaction under sunlight irradiation. The resulting evaporator possesses both excellent water evaporation rate of 2.54 kg m−2 h−1 and high degradation efficiency (99.24% for methylene blue), coupled with durable salt‐resisting performance during long‐term seawater desalination (20 wt.% NaCl). This work provides a simple and feasible strategy for designing multifunctional solar evaporators to meet the potential application scenarios in practice.

show abstract

FeOOH Quantum Dots Assembled MXene‐Decorated 3D Photothermal Evaporator for Synergy Application in Solar Evaporation and Fenton Degradation

Liu,

Li,

Tian

et al. 2024

Small Methods

View full text Add to dashboard Cite

show abstract

Construction of a self-floating fabric based on CVD-assisted coating and its application in interfacial evaporation

Zhang,

Zhou,

et al. 2025

Progress in Organic Coatings

View full text Add to dashboard Cite

Constructing a Thin Layer of the Concentrated Polyelectrolyte Solution on the Hydrogel Surface That Can Considerably Improve the Solar Evaporation Efficiency

Zhu,

Zhao,

et al. 2024

Macromolecules

View full text Add to dashboard Cite

Converting solar energy to evaporative energy to obtain clean water has been intensively studied. However, the efficiency of the reported solar evaporators remains limited, and their construction is complex and challenging to control. Here, we report a facile method for constructing efficient solar evaporators by utilizing a thin-layer, highly concentrated polyelectrolyte solution as the evaporation layer. Under an electric field, a single layer of polyelectrolyte−shelled micelles is grafted onto a hydrogel surface, controllably and stably modifying highly concentrated polyelectrolyte chains on the outermost surface. These chains, with their low chemical potential, efficiently absorb water to form the evaporation layer. Theoretical calculations indicate that the water molecules in the evaporation layer possess high energy as the hydrogen bonds between them are significantly disrupted, thus minimizing the evaporation energy. Consequently, for simulated seawater and under 1 kW m −2 irradiation, the as-prepared evaporator without a photothermal component achieves a high evaporation rate of 3.74 kg m −2 h −1 (1.5 times the highest nonphotothermal hydrogels) and that with photothermal particles β-Ti 3 O 5 reaches a record-breaking value (6.92 kg m −2 h −1 ). Remarkably, the ion rejection ratio is as high as 99.97% due to repulsion from the positively charged polyelectrolyte.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Amphiphilic Janus patch-grafted hydrogels for salt-rejecting solar water desalination

Abstract: Interfacial solar seawater desalination is considered as one of the most promising sustainable techniques for producing fresh water. Janus hydrogel evaporators with a hydrophobic top layer and a hydrophilic bottom...

Cited by 4 publications

References 59 publications

FeOOH Quantum Dots Assembled MXene‐Decorated 3D Photothermal Evaporator for Synergy Application in Solar Evaporation and Fenton Degradation

FeOOH Quantum Dots Assembled MXene‐Decorated 3D Photothermal Evaporator for Synergy Application in Solar Evaporation and Fenton Degradation

Construction of a self-floating fabric based on CVD-assisted coating and its application in interfacial evaporation

Constructing a Thin Layer of the Concentrated Polyelectrolyte Solution on the Hydrogel Surface That Can Considerably Improve the Solar Evaporation Efficiency

Contact Info

Product

Resources

About