Rational construction of “all-in-one” metal-organic framework for integrated solar steam generation and advanced oxidation process

He, Peigang; Lan, Hongyu; Bai, Huiying; Zhu, Yingying; Fan, Zifen; Liu, Jie; Liu, Lijie; Niu, Ran; Dong, Zhiyue; Gong, Jiang

doi:10.1016/j.apcatb.2023.123001

Cited by 84 publications

(34 citation statements)

References 69 publications

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“…26 Benefiting from high specific surface area, adjustable structure, and rich open metallic site, MOF shows grand potentials in PMS activation (or persulfate) to eliminate organic contaminants. [27][28][29] Consequently, the construction of multifunctional MOF-based solar evaporators capable of solar-driven steam generation with SR-AOP offers a promising way for simultaneous freshwater production and pollutant removal. Bai et al prepared a Co-MOF/carbon nanotube evaporator, which showed an evaporation rate of 2.25 kg m À2 h À1 with high TC removal efficiency.…”

Section: Sulfate Radical (Somentioning

confidence: 99%

“…Metal–organic framework (MOF) is a typical class of porous coordination polymers and composed of organic linkers and metal ions 26 . Benefiting from high specific surface area, adjustable structure, and rich open metallic site, MOF shows grand potentials in PMS activation (or persulfate) to eliminate organic contaminants 27–29 . Consequently, the construction of multifunctional MOF‐based solar evaporators capable of solar‐driven steam generation with SR‐AOP offers a promising way for simultaneous freshwater production and pollutant removal.…”

Section: Introductionmentioning

confidence: 99%

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Green recycling of waste poly(ethylene terephthalate) into Ni‐MOF nanorod for simultaneous interfacial solar evaporation and photocatalytic degradation of organic pollutants

Fan,

He,

Bai

et al. 2023

EcoMat

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Interfacial solar evaporation is regarded as the promising technology to mitigate freshwater scarcity. However, when polluted water is used, toxic pollutants might accumulate in the bulk water. Herein, we report the production of Ni‐MOF nanorod from waste poly(ethylene terephthalate) and fabricate bifunctional Ni‐MOF‐based evaporators. Owing to high light absorption and photothermal conversion, low thermal coefficient, and vaporization enthalpy, it shows an exciting evaporation rate (2.25 kg m−2 h−1) with good flexibility/durability, rated as one of most advanced evaporators. Density functional theory and COMSOL results show that the combination of nickel‐sites in Ni‐MOF and local heat plays a crucial role in peroxymonosulfate activation to produce reactive species. Thereby, it exhibits the high degradation activity of tetracycline. In outdoor, the freshwater production reaches 5.54 kg m−2 per day, and the tetracycline removal efficiency is 91%. This work provides a sustainable approach to produce solar evaporators capable of freshwater production and contaminant degradation.image

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Section: Sulfate Radical (Somentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Green recycling of waste poly(ethylene terephthalate) into Ni‐MOF nanorod for simultaneous interfacial solar evaporation and photocatalytic degradation of organic pollutants

Fan,

He,

Bai

et al. 2023

EcoMat

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“…Solar evaporation from seawater is driving a paradigm shift toward a more sustainable and environmentally friendly solution to the scarcity of fresh water in the world. , Solar interfacial evaporation (SIE) by leveraging localized heating on a porous photothermal framework − has been demonstrated to be highly efficient for desalination and wastewater decontamination. , In SIE, the photothermal layers, such as those with carbon , or metallic-based − materials, are placed far above the free surface of seawater to avoid heat loss from conduction to the bulk water. The heat from photothermal conversion is localized on the evaporation surface, leading to enhanced energy efficiency and evaporation rate. , A current challenge is to avoid the negative impact of salt crystallization on the long-term high evaporation rate.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Morphology and Distribution of Salt Crystals on a Photothermal Layer during Solar Interfacial Evaporation

Zeng,

Kumar,

et al. 2023

Langmuir

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Solar interfacial evaporation (SIE) by leveraging photothermal conversion could be a clean and sustainable solution to the scarcity of fresh water, decontamination of wastewater, and steam sterilization. However, the process of salt crystallization on photothermal materials used in SIE, especially from saltwater evaporation, has not been completely understood. We report the temporal and spatial evolution of salt crystals on the photothermal layer during SIE. By using a typical oil lamp evaporator, we found that salt crystallization always initiates from the edge of the evaporation surface of the photothermal layer due to the local fast flux of the vapor to the surroundings. Interestingly, the salt crystals exhibit either compact or loose morphology, depending on the location and evaporation duration. By employing a suite of complementary analytical techniques of Raman and infrared spectroscopy and temperature mapping, we followed the evolution and spatial distribution of salt crystals, interfacial water, and surface temperature during evaporation. Our results suggested that the compact crystal structure may emerge from the recrystallization of salt in an initially porous structure, driven by continuous water evaporation from the porous and loose crystals. The holistic view provided in this study may lay the foundation for effective strategies for mitigation of the negative impact of salt crystallization in solar evaporation.

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“…The excellent performance of ISSG chiefly depends on these critical criteria: (1) powerful light capture and photothermal conversion to get more heat energy, (2) optimized thermal transfer controls to minimize heat loss, (3) quick water transportation to replenish water loss, and (4) excellent steam escape. , In view of this, the light capture layer is the key factor for achieving an evaporation rate and efficient water purification. − Currently, various photothermal materials with powerful light capture across the solar spectrum have been widely reported, including plasma nanoparticles, − carbon-based materials, − functional biomass materials, − organic polymers, − organic frameworks, − transition metal nitrides − and semiconductors. − …”

Section: Introductionmentioning

confidence: 99%

Hierarchical CuO/ZnO Heterojunction with Improved Spectrum Absorption for Interfacial Solar Steam Generation

Zhang,

Cai,

Zhao

et al. 2023

Ind. Eng. Chem. Res.

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Rational construction of “all-in-one” metal-organic framework for integrated solar steam generation and advanced oxidation process

Cited by 84 publications

References 69 publications

Green recycling of waste poly(ethylene terephthalate) into Ni‐MOF nanorod for simultaneous interfacial solar evaporation and photocatalytic degradation of organic pollutants

Green recycling of waste poly(ethylene terephthalate) into Ni‐MOF nanorod for simultaneous interfacial solar evaporation and photocatalytic degradation of organic pollutants

Evolution of Morphology and Distribution of Salt Crystals on a Photothermal Layer during Solar Interfacial Evaporation

Hierarchical CuO/ZnO Heterojunction with Improved Spectrum Absorption for Interfacial Solar Steam Generation

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