A self-regenerating air-laid paper wrapped ASA 3D cone-shaped Janus evaporator for efficient and stable solar desalination

Cao, Ningning; Lu, Songtao; Yao, Rui; Liu, Chenxi; Xiong, Qiyang; Qin, Wei; Wu, Xiaohong

doi:10.1016/j.cej.2020.125522

Cited by 89 publications

(40 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 29–31 ] Meanwhile, we tailored a conical frustum 3D structure, of which cross‐section that is perpendicular to the brine flow direction is continuously expanding, conducing to the propertly radial brine transport in the evaporator (Figure 1c). [ 32 ] Unlike previously reported conical evaporators, which were fabricated via simply tailoring and jointing, enhancing the sunlight absorption through multiple reflections in the cavity, [ 33–39 ] our 3D hydrogel‐based evaporator is a frustum of conical entity formed by a mold and the whole is used for brine transport. Importantly, the wetted direction in the cylindrical structure is always from the edge to the center, and then the concentration on the center is the highest, salt preferentially tends to deposit on the main surface, blocking the light absorption and vapor escaping (Figure 1d, left).…”

Section: Introductionmentioning

confidence: 99%

Highly Salt‐Resistant 3D Hydrogel Evaporator for Continuous Solar Desalination via Localized Crystallization

Jiang

et al. 2021

Adv Funct Materials

156

101

View full text Add to dashboard Cite

The emerging solar desalination by interfacial evaporation shows great potential for alleviating the global freshwater crisis. However, salt deposition on the whole evaporation surface during steam generation leads to a deterioration in the evaporation rate and long‐term stability. Herein, it is demonstrated that a hydrogel‐based 3D structure can serve as an efficient and stable solar evaporator by salt localized crystallization for high‐salinity brine desalination. Under the function of micron‐grade brine transport management and edge‐preferential crystallization promoted by this novel design, this 3D hydrogel evaporator exhibits a superior salt‐resistant property without salt deposition on the photothermal surface even in 20 wt% brine for continuous 24‐h illumination. Moreover, by virtue of the synergistic effect of the promising 3D structure and excellent water transport of hydrogel, the proposed evaporator possesses an excellent evaporation performance achieving 2.07 kg m−2 h−1 on average in a high‐salinity brine (from 10 to 25 wt% NaCl) under 1 sun irradiation, among the best values reported in the literature. With stable and efficient evaporation performance out of high‐salinity brine, this design holds great potential for its applications in sustainable solar desalination.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly Salt‐Resistant 3D Hydrogel Evaporator for Continuous Solar Desalination via Localized Crystallization

Jiang

et al. 2021

Adv Funct Materials

156

101

View full text Add to dashboard Cite

show abstract

“…[ 34–36 ] The commonly used photothermal materials are metallic nanoparticles, [ 37–39 ] carbon‐based materials, [ 40,41 ] and semiconductor materials. [ 42–44 ] PEDOT is a dark conductive polymer rich in conjugated π bonds, which has good electrical conductivity and is also a potential photothermal conversion material based on almost 100% absorption of light in the wavelength range of 900–2000 nm. [ 45 ]…”

Section: Introductionmentioning

confidence: 99%

A High Strength Hydrogel with a Core–Shell Structure Simultaneously Serving as Strain Sensor and Solar Water Evaporator

Peng

Tang

Wang

et al. 2021

Macro Materials & Eng

View full text Add to dashboard Cite

A super‐strong poly (acrylic acid)‐ poly(3,4‐ethylene dioxythiophene) (PAA‐PEDOT) hydrogel with a unique core‐shell structure is successfully constructed and studied. The shell composed of the conductive polymer PEDOT makes the composite hydrogel possess mechanical strength, electrical conductivity, and photothermal conversion properties, while the PAA hydrogel core ensures the flexibility, recovery, and water absorption of the composite hydrogel. The prepared PAA‐PEDOT hydrogel displays outstanding tensile strength (up to 780 KPa) and satisfactory conductivity (6.6 S m−1). Notably, the flexible strain sensor made of PAA‐PEDOT composite hydrogel presents both high sensitivity (gauge factor up to 8.87) and short response time (<200 ms), demonstrating that the composite hydrogel can accurately and timely detect the movement of human joints. In addition, PAA‐PEDOT composite hydrogel also has excellent photothermal conversion properties and can be used as a highly efficient solar water evaporator, which has a water evaporation efficiency of up to 3.05 kg m−2 h and an excellent photothermal conversion efficiency of 95% under 1‐sun irradiation (1kW m−2). These features make the composite hydrogel has great potential in many fields such as motion sensing, seawater desalination, and wastewater treatment.

show abstract

“…The light follows curing of pre-determined CAD model design at a single projection, making it fast and with good resolution. One study [14] employed DLP continuous 3D printing system to fabricate 3D absorber structures with surface distributed micropores for SWE. The base material was a polyacrylate-based resin that was incorporated with carbon nanotubes and a pore-former material, signifying the technique's versatility for use with composite resin material.…”

Section: Figurementioning

confidence: 99%

“…Measured concentrations of four primary ions in the actual seawater sample from Jiaozhou Bay, the Yellow Sea before and after desalination. Orange and green columns represent the metal ion concentrations before and after purification, respectively (images adapted from [14]).…”

Section: -04mentioning

confidence: 99%

See 1 more Smart Citation

3D-Printed Absorbers for Solar-Driven Interfacial Water Evaporation: A Mini-Review

Tijing

Dizon

Cruz

2021

ASSET

View full text Add to dashboard Cite

Solar-driven interfacial water evaporation (SWE) is considered as a promising sustainable solution for clean water production especially for remote and off-grid communities. Various approaches have been developed in the last decade to improve the evaporation and thermal efficiency of the system, and to make it more robust for long-term operation. In recent years, 3D printing has emerged as an attractive method to fabricate simple and complex absorber geometries for SWE. In this mini-review, we present the new developments of 3D-printed solar absorbers including the various designs, fabrication strategies, challenges and opportunities. This study hopes to provide more insights into the use of additive manufacturing for improving the absorber design and performance of SWE.

show abstract

A self-regenerating air-laid paper wrapped ASA 3D cone-shaped Janus evaporator for efficient and stable solar desalination

Cited by 89 publications

References 64 publications

Highly Salt‐Resistant 3D Hydrogel Evaporator for Continuous Solar Desalination via Localized Crystallization

Highly Salt‐Resistant 3D Hydrogel Evaporator for Continuous Solar Desalination via Localized Crystallization

A High Strength Hydrogel with a Core–Shell Structure Simultaneously Serving as Strain Sensor and Solar Water Evaporator

3D-Printed Absorbers for Solar-Driven Interfacial Water Evaporation: A Mini-Review

Contact Info

Product

Resources

About