Novel advances in metal-based solar absorber for photothermal vapor generation

Li, Zhengtong; Wang, Chengbing

doi:10.1016/j.cclet.2019.09.030

Cited by 50 publications

(25 citation statements)

References 93 publications

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“…The inherent asymmetric environment of a gas–liquid interface leads to different chemical and physical properties between this region and the bulk phase. − At the gas–liquid interface, many molecules display minimal free energies. Therefore, it is usually a favored place for compound accumulation and reaction, resulting in enhanced chemical processes, specific reactions, and mass transfer. ,, Interfacial processes have attracted great interest in the field of environmental science. ,,, Interfacial photochemistry has potentially a large impact on the generation of volatile organic compounds (VOCs) as the gas–liquid interface provides a very active venue for new types of photochemistry. ,,,, The direct photolysis of nonanoic acid was observed at a water–air interface which normally could not occur in the gas phase…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is usually a favored place for compound accumulation and reaction, resulting in enhanced chemical processes, specific reactions, and mass transfer. 1,6,7 Interfacial processes have attracted great interest in the field of environmental science. 1,3,8,9 Interfacial photochemistry has potentially a large impact on the generation of volatile organic compounds (VOCs) as the gas−liquid interface provides a very active venue for new types of photochemistry.…”

Section: ■ Introductionmentioning

confidence: 99%

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Impact of Gas–Liquid Interface on Photochemical Vapor Generation

Chen

Zhao

et al. 2021

Anal. Chem.

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Interfacial effect has attracted increasing interest as the inherent asymmetric environment of a gas–liquid interface leads to different chemical and physical properties between this region and the bulk phase, resulting in enhanced chemical processes, specific reactions, and mass transfer at the interface. Photochemical vapor generation (PVG) is regarded as a simple and green sample introduction method in atomic spectrometry. However, the photochemical behavior of elements with the interface is not known. Herein, we report the PVG of elements at the gas–liquid interface along with a possible mechanism investigated for the first time. Enhancement and/or suppression effects from the gas–liquid interface were observed on the PVG of 17 elements, which was correlated with the properties of analytes and the generated intermediate substances/products of PVG and the applied conditions. Enhancement from 1.1- to 7.3-fold in analytical sensitivity was found for 12 elements in the system with gas–liquid interface(s) compared to the results obtained in previous reports of PVG using traditional flow injection with inductively coupled plasma mass spectrometry measurement. The introduction of gas–liquid interface(s) and the resultant elevated temperature inside the PVG reactor likely facilitated the generation of radicals, the subsequent radical-based reactions, and the separation/transport/detection of volatile species of elements. In contrast, intermediate substances/products generated in PVG with poor thermostability will readily decompose at elevated temperatures, leading to a decreased signal response of analytes. The finding is helpful to understand the transport of elements under UV irradiation in the environment and has potential for analysis of trace elements in environmental and biological samples.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Impact of Gas–Liquid Interface on Photochemical Vapor Generation

Chen

Zhao

et al. 2021

Anal. Chem.

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“…Photothermal evaporation technology based on local heating and interface evaporation has been widely used in the field of seawater desalination because of its advantages of nonpollution, safety and reliability, adaptability and economic efficiency. [43,[47][48][49][50][51][52][53][54][55][56][57][58][59][60][61] However, there are still some challenges that limit the large-scale application of solar-driven desalination technology, such as low solar vapor conversion efficiency, poor salt resistance of solar absorber and low water production due to low condensation efficiency.…”

Section: Solar-driven Seawater Desalinationmentioning

confidence: 99%

“…At present, photothermal materials with nearly perfect solar absorption can be divided into four types: metal NPs, black polymers, narrowband semiconductors, and carbon-based materials. [54][55][56]59,60] These photothermal conversion materials have high absorption in the solar spectrum wavelength range, but also have high emission in the infrared spectrum, which inevitably causes significant heat radiative losses. [12,13] Another thermal management approach is to use SSA to minimize radiative heat losses, thus further improving the overall efficiency of the desalination system.…”

Section: Solar-driven Seawater Desalinationmentioning

confidence: 99%

Solar Selective Absorber for Emerging Sustainable Applications

Zhang

Wang

Shi

et al. 2022

Adv Energy and Sustain Res

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Solar selective absorbers (SSAs) possess high sunlight absorption (300–2500 nm) and low infrared thermal radiative losses (2.5–25 μm), which are undoubtedly the best choice for photothermal conversion process, and SSAs have been widely used in concentrating solar power, solar water heating, and solar drying. Recently, to promote the realization of “double carbon” goal, SSAs have received widespread attentions, many emerging sustainable applications have been developed. In this review, the recent developments of SSAs and their latest sustainable applications in solar‐driven seawater desalination, multistage solar desalination, atmospheric water harvesting (AWH), wastewater treatment, solar thermophotovoltaics (STPVs), hybrid photovoltaic‐thermal (HPVT), solar‐thermoelectric generators (STEG), personal thermal management (PTM), photothermal catalysis, photothermal deicing, and photothermal sterilization, etc. are systematically summarized. Also, the challenges as well as future opportunities of SSAs are discussion. It is expected that this review will effectively complement the published comments on SSAs and provide more inspirations on sustainable applications of SSAs in the future.

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“…Using photothermal evaporation technology can remove most ionic impurities and microorganisms, and the effluent is able to meet the drinking water standard of seawater desalination 12 . Generally, the detection index of the water quality by photothermal evaporation technology is the concentration of four main ions (Na + , K + , Ca 2+ , Mg 2+ ), which is relative incomplete when facing water with complex component 12,13 . Especially, the detection of volatile organic compounds (VOCs) or semi‐VOCs in the wastewater has been ignored 14 .…”

Section: Introductionmentioning

confidence: 99%

Perspective for removing volatile organic compounds during solar‐driven water evaporation toward water production

Sun

et al. 2021

EcoMat

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Solar evaporation has attracted considerable interest to alleviate the shortage of water resources in the past few years. Lots of works have been done focusing on evaporation materials, rate, and efficiency, however, little attempts have been made to remove the harmful volatile organic compounds (VOCs), a kind of contamination that inevitably evaporate and condense alongside with water, which seriously affect the distilled water quality. This perspective puts forward some technical ideas utilizing chemical or physicochemical methods, aiming at the development of multifunctional composite materials, and forming an integrated evaporation system, which manage to remove VOCs in situ at the interface of photothermal evaporation.

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Novel advances in metal-based solar absorber for photothermal vapor generation

Cited by 50 publications

References 93 publications

Impact of Gas–Liquid Interface on Photochemical Vapor Generation

Impact of Gas–Liquid Interface on Photochemical Vapor Generation

Solar Selective Absorber for Emerging Sustainable Applications

Perspective for removing volatile organic compounds during solar‐driven water evaporation toward water production

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