Achieving fast interfacial solar vapor generation and aqueous acid purification using Ti3C2TxMXene/PANI non-woven fabrics

Ding, Ronggui; Xiong, Ji; Yan, Qi; Chen, Zhong; Liu, Zonglin; Zhao, Xu; Peng, Qingyu; He, Xiaodong

doi:10.1039/d3mh00060e

Cited by 18 publications

(5 citation statements)

References 41 publications

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“…The peak at 39° of the precursor Ti 3 AlC 2 representing for (104) plane is shown in Figure S5. The peak at 39° disappears and an obviously characteristic peak of the (002) plane at 7.1° can be investigated in Ti 3 C 2 T x after the selective etching of the Al layer . As shown in Figure e, the diffraction peak of the (002) plane of GMF further decreases to 6.1°, probably due to the Ti 3 C 2 T x interlayer space being extended after bounding to graphene oxide and alginate.…”

Section: Resultsmentioning

confidence: 99%

Thermochromic Janus Membranes with Dynamic Solar Modulation toward Sustainable and High-Efficiency Solar-to-Thermal Intelligent Management

Yan,

Ding,

et al. 2024

ACS Sustainable Chem. Eng.

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Solar-energy thermal management, characterized by its environmental friendliness, cost-effectiveness, and efficiency, holds a promising future, which has brought about widespread interest in the evolution of solar-to-thermal materials with the desired properties. Nevertheless, in both hot and cold environments, challenges in developing functionally integrated hydrogels for sustainable thermal regulation still remain. In this study, a rationally, simply, and effectively designed structured Janus membrane, consisting of a Ti 3 C 2 T x MXene/ GO/alginate fibers nonwoven (GMF) layer and a P (NIPAM co-DMAA) (PAD) hydrogel layer. The GMF with excellent hydrophilicity forms an interpenetrating structure with the PAD hydrogel through strong hydrogen bonds and can be easily adapted to multishape and multifield applications. By adjusting the content of thermochromic PAD hydrogel monomers, an improvement in the critical transition temperature (37.7 °C) and a reduction in volume shrinkage has been achieved, and the full-spectrum intrinsic transmittance is 67.59%, which is of excellent practicability and cyclic stability. Under constant sunlight, the hydrogel's phase transition decelerates the temperature increment in the photothermal layer, thereby establishing a stable equilibrium temperature in the environment. The equilibrium temperature of the photothermal layer can be adjusted between 32 and 36 °C to match a variety of climates by regulating the relative content of the Ti 3 C 2 T x MXene and GO in the photothermal layer. Additionally, the existence of the thermochromic hydrogel in the Janus membrane prevents the indoor temperature from overheating. Furthermore, the membrane's asymmetric structure enhances its ability to reduce heat dissipation, crucial for high-performance thermal management. Moreover, this novel structure can be used as a self-supporting agricultural film to maintain a stable temperature in the environment for efficient plant growth, demonstrating significant potential in new modern agriculture.

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Section: Resultsmentioning

confidence: 99%

Thermochromic Janus Membranes with Dynamic Solar Modulation toward Sustainable and High-Efficiency Solar-to-Thermal Intelligent Management

Yan,

Ding,

et al. 2024

ACS Sustainable Chem. Eng.

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“…To date, a series of innovative works have been successfully carried out in terms of improving sunlight absorption, 3–6 minimizing heat loss, 7,8 enhancing salt resistance, 9–11 reducing the water evaporation enthalpy, 12,13 optimizing water supply, 14–16 etc. Although these efforts have resulted in significant breakthroughs in energy conversion efficiency and freshwater acquisition, access to drinkable water based on solar steam generation is usually extremely dependent on sufficient solar radiation.…”

Section: Introductionmentioning

confidence: 99%

Magnetically driven Janus conical vertical array for all-weather freshwater collection

Zhang,

Zhu,

Chen

et al. 2024

Mater. Horiz.

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“…24 Therefore, the combination of two mutually supportive components, PDA/MXene nanoparticles and PA/PANI micronano coatings, will achieve more critical light absorption and heat conversion with a lower content of fillers. 25 In addition, the dual modification method of mechanical mixing and surface treatment can complement the deficiencies of different treatment means to achieve more stable and potential oil absorption. 26 In this paper, multifunctional foams with excellent compressibility, superior photothermal efficiency, and superior environmental stability were constructed for efficient oil−water separation and selective absorption.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the P–N synergistic flame retardancy of the PANI/PA coatings, combined with the barrier effect of MXene, can provide a protective shield for the adsorbent materials against fire accidents . Therefore, the combination of two mutually supportive components, PDA/MXene nanoparticles and PA/PANI micronano coatings, will achieve more critical light absorption and heat conversion with a lower content of fillers . In addition, the dual modification method of mechanical mixing and surface treatment can complement the deficiencies of different treatment means to achieve more stable and potential oil absorption …”

Section: Introductionmentioning

confidence: 99%

Polydopamine/MXene Nanosheet/Polyaniline/Polydimethylsiloxane Foams for Oil–Water Separation

Li,

Zhou,

Shi

et al. 2024

ACS Appl. Nano Mater.

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It remains a huge challenge to clean leaks of oil and various organic solvents quickly and efficiently, especially for special conditions such as high-viscosity oils, corrosion from acid/alkali solutions, high-temperature damage, and fire risk. The adsorbents with a three-dimensional porous structure and excellent resilience have been recognized as prospective candidates for dealing with oil−water separation problems. In this study, solar responsive and multifunctional polyurethane foams were successfully fabricated by compounding photothermal and hydrophobic components by both internal and external means. Due to the interface adhesion, polydopamine/MXene nanosheet/polyaniline/polydimethylsiloxane polyurethane (PMPP− PU) foams prepared by introducing PDA/MXene nanoparticles and phytic acid (PA)/PANI micronano coatings exhibited a high adsorption capacity up to 61.4 g/g for different kinds of low-viscosity organic solvents. Driven by 1 kW/m 2 illumination intensity, the adsorption capacity of PMPP−PU for high-viscosity oil increased to 29.4 g/g, realizing a 203% rise compared to pure PU. Also, the modified foams achieved rapid extrusion and cyclic adsorption of adsorbed solvents, and PMPP−PU showed an adsorption efficiency of close to 90% after 20 cycles. Besides, the prepared adsorbent foams remained persistent and maintained stable hydrophobicity under extreme environmental conditions and were not significantly damaged even by fire attack. This work presents a competitive strategy for the separation and recovery of low-viscosity organic solvents and high-viscosity oils.

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Achieving fast interfacial solar vapor generation and aqueous acid purification using Ti₃C₂T_xMXene/PANI non-woven fabrics

Abstract: Acid rain is a worldwide problem because of the acid gases emitted to the atmosphere, leading to the acidification of first-order stream and aggravation of fresh water shortage. Therefore, it...

Cited by 18 publications

References 41 publications

Thermochromic Janus Membranes with Dynamic Solar Modulation toward Sustainable and High-Efficiency Solar-to-Thermal Intelligent Management

Thermochromic Janus Membranes with Dynamic Solar Modulation toward Sustainable and High-Efficiency Solar-to-Thermal Intelligent Management

Magnetically driven Janus conical vertical array for all-weather freshwater collection

Polydopamine/MXene Nanosheet/Polyaniline/Polydimethylsiloxane Foams for Oil–Water Separation

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