Bioinspired photothermal polyaniline composite polyurethane sponge: Interlayer engineering for high-concentration seawater desalination

Zhao, Xueting; Dong, Jiajing; Yu, Xiaoming; Liu, Lingling; Liu, Jialin; Pan, Jing

doi:10.1016/j.seppur.2023.123181

Cited by 13 publications

(3 citation statements)

References 60 publications

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“…The surface of the PU sponge skeleton was smooth, providing an ideal surface for further modification of the PU sponge. 40 In contrast, the skeleton surface of the SCA (Figure 2f−j) showed a large number of folded films, which indicated that the CA was successfully loaded on the surface of the sponge skeleton. The presence of a large number of hydrophilic groups in CA greatly enhances the water-absorbent properties of SCA.…”

Section: ■ Results and Discussionmentioning

confidence: 95%

“…The interconnected porous structure can provide favorable channels for water adsorption and desorption. The surface of the PU sponge skeleton was smooth, providing an ideal surface for further modification of the PU sponge . In contrast, the skeleton surface of the SCA (Figure f–j) showed a large number of folded films, which indicated that the CA was successfully loaded on the surface of the sponge skeleton.…”

Section: Resultsmentioning

confidence: 99%

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Green Synthesis of Polyurethane Sponge-Grafted Calcium Alginate with Carbon Ink Aerogel with High Water Vapor Harvesting Capacity for Solar-Driven All-Weather Atmospheric Water Harvesting

Liu,

Xu,

Wang

et al. 2024

Langmuir

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Atmospheric water harvesting (AWH) technology is a new strategy for alleviating freshwater scarcity. Adsorbent materials with high hygroscopicity and high photothermal conversion efficiency are the key to AWH technology. Hence, in this study, a simple and large-scale preparation for a hygroscopic compound of polyurethane (PU) sponge-grafted calcium alginate (CA) with carbon ink (SCAC) was developed. The PU sponge in the SCAC aerogel acts as a substrate, CA as a moisture adsorber, and carbon ink as a light adsorber. The SCAC aerogel exhibits excellent water absorption of 0.555−1.40 g•g −1 within a wide range of relative humidity (40−80%) at 25 °C. The SCAC aerogel could release adsorbed water driven by solar energy, and more than 92.17% of the adsorbed water could be rapidly released over a wide solar intensity range of 1.0−2.0 sun. In an outdoor experiment, 57.517 g of SCAC was able to collect 32.8 g of clean water in 6 h, and the water quality meets the drinking water standards set by the World Health Organization. This study suggests a new approach to design promising AWH materials and infers the potential practical application of SCAC aerogel-based adsorbents.

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Section: ■ Results and Discussionmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Green Synthesis of Polyurethane Sponge-Grafted Calcium Alginate with Carbon Ink Aerogel with High Water Vapor Harvesting Capacity for Solar-Driven All-Weather Atmospheric Water Harvesting

Liu,

Xu,

Wang

et al. 2024

Langmuir

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“…This paper proposes a solar-driven interfacial evaporator prepared using tea leaves through an impregnation method [8]. The device is based on a polyurethane sponge, which is economical and easily accessible [9][10]. By impregnating the tea leaves and subsequently immersing them in FeSO 4 solution, the evaporator can be fabricated.…”

Section: Introductionmentioning

confidence: 99%

A novel and expedient design of high-efficiency solar-driven interface evaporator fabricated on polyurethane sponge

Qi,

Wang,

Xia

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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Based on the background of freshwater scarcity, desalination technology has been widely applied, and solar interface evaporator is a highly promising strategy for seawater desalination. However, its limited stability and low efficiency have restricted the practical implementation of interfacial evaporation. In this paper, we propose an improved solar evaporator, in which a polyurethane sponge is used as a substrate, and a photo-thermal conversion coating is formed on the sponge through a reaction between iron ions and the abundant polyphenolic materials in tea leaves. The polyurethane sponge, modified by polyphenolic materials. and iron ions, exhibits high hydrophilicity and ensures the efficient transport of water within the evaporator due to its high porosity and permeability. Moreover, the polyphenolic materials, serving as a chelating agent, reacts with iron ions with moderate photo-thermal conversion properties, resulting in a dark photo-thermal conversion coating on the sponge, ensuring efficient photo-thermal conversion throughout the entire evaporator.

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A low-cost salt-tolerant solar evaporator prepared from graphite in spent LIBs for high efficiency seawater desalination

Han,

Xu,

Wang

et al. 2024

Chemical Engineering Journal

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Bioinspired photothermal polyaniline composite polyurethane sponge: Interlayer engineering for high-concentration seawater desalination

Cited by 13 publications

References 60 publications

Green Synthesis of Polyurethane Sponge-Grafted Calcium Alginate with Carbon Ink Aerogel with High Water Vapor Harvesting Capacity for Solar-Driven All-Weather Atmospheric Water Harvesting

Green Synthesis of Polyurethane Sponge-Grafted Calcium Alginate with Carbon Ink Aerogel with High Water Vapor Harvesting Capacity for Solar-Driven All-Weather Atmospheric Water Harvesting

A novel and expedient design of high-efficiency solar-driven interface evaporator fabricated on polyurethane sponge

A low-cost salt-tolerant solar evaporator prepared from graphite in spent LIBs for high efficiency seawater desalination

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