All‐In‐One Self‐Floating Wood‐Based Solar‐Thermal Evaporators for Simultaneous Solar Steam Generation and Catalytic Degradation

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Май 20, 2024

Abstract Solar‐driven steam generation has emerged as a sustainable technology for addressing freshwater scarcity. However, significant challenges still exist in developing high‐performance, multifunctional evaporators that are adept at both efficiently evaporating water and degrading pollutants, primarily because of the trade‐offs among functional designs. Here, self‐floating solar evaporator is reported by functionalizing balsa wood with solar‐thermal conversion material carbon nanotubes catalytic manganese dioxide (MnO 2 ) nanoflowers simultaneous evaporation pollutant degradation. MnO rich oxygen vacancies can effectively activate peroxymonosulfate to generate reactive species efficient organic A distinctive non‐wetted porous interior structure precisely targeted pathway spontaneously established evaporator, ensuring fast supply, thermal insulation, mass transfer, high buoyancy. The resulting successfully combine an impressive rate 2.74 kg m −2 h −1 , degradation efficiency (98.3% 100 mg L tetracycline 97.4% 200 Methyl orange), stable self‐standing capabilities ensure long‐term operation stability even complex real‐world environments. This work provides approach design evaporators, strong alignment practical requirements while expanding their potential application scenarios.

Язык: Английский

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Recent advances in water collection based on solar evaporation

Green Energy & Environment, Год журнала: 2024, Номер 9(12), С. 1812 - 1821

Опубликована: Май 20, 2024

Solar evaporation attracted lots of attention due to its environment-friendly and high efficiency, which is a potential approach collecting fresh water. Many efforts have been made improve the rate in open space. While actual water collection far less than rate, especially passive collection, limiting practical scalable applications. In this review, we focus on freshwater based solar evaporation. Firstly, heat mass transfer behaviors side were summarized performance, including processes thermal radiation, convection, conduction; supply, enthalpy, salt rejection. Sequentially, subcooling, wettability, geometry condensation discussed should be designed collaboratively with confined Finally, recovery electricity generation beyond also introduced, some challenges still need further for applications, integrated system, long-term issues.

Язык: Английский

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Enhancement and optimization of membrane distillation processes: A systematic review of influential mechanisms, optimization and applications

Desalination, Год журнала: 2024, Номер 586, С. 117862 - 117862

Опубликована: Июнь 19, 2024

Язык: Английский

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Simultaneous Solar‐Driven Interfacial Evaporation and Photo‐Fenton Oxidation by Semiconducting Metal–Organic Framework From Waste Polyimide

Energy & environment materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

The integrated technology of interfacial solar steam generation and photo‐Fenton oxidation has emerged as a promising way to simultaneously mitigate freshwater scarcity degrade organic pollutants. However, fabricating low‐cost, multi‐functional evaporators with high water evaporation catalytic ability still presents significant challenge. Herein, we report the functional upcycling waste polyimide into semiconducting Fe‐BTEC subsequently construct Fe‐BTEC‐based composite for simultaneous production degradation Firstly, through two‐step solvothermal‐solution stirring method, nanoparticles size 20–100 nm are massively produced from polyimide, band gap energy 2.2 eV. evaporator based on graphene possesses wide solar‐spectrum absorption capacity, photothermal conversion rapid delivery water, low enthalpy evaporation. Benefiting merits above, achieves rate 2.72 kg m −2 h −1 tetracycline solution, well efficiency 97% when exposed irradiation 1 Sun, superior many evaporators. What is more, exhibits 99.6% good recycling stability, ranking one most powerful heterogeneous Fenton catalysts. COMSOL Multiphysics density theory calculation results prove synergistic effect concentrated heat by active sites promoting H 2 O activation form reactive radicals. This work not only provides green strategy but also proposes new approach fabricate

Язык: Английский

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A low-carbon dual-functional evaporator with photothermal and catalytic properties for enhanced VOCs removal during water evaporation

Chemical Engineering Journal, Год журнала: 2024, Номер 499, С. 156501 - 156501

Опубликована: Окт. 9, 2024

Язык: Английский

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