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Turning waste into treasure: Carbonized walnut shell for solar-driven water evaporation.

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Title: Turning waste into treasure: Carbonized walnut shell for solar-driven water evaporation.
Authors: Wang, Yuzhu1 (AUTHOR), Luo, Xinyi1 (AUTHOR), Song, Xinyuan1 (AUTHOR), Guo, Wei1,2 (AUTHOR) guowei@hrbnu.edu.cn, Yu, Kai1 (AUTHOR), Yang, Chunyu1 (AUTHOR) ycy@hrbnu.edu.cn, Qu, Fengyu1 (AUTHOR) qufengyu@hrbnu.edu.cn
Source: Materials Letters. Jan2022, Vol. 307, pN.PAG-N.PAG. 1p.
Subjects: Walnut, Waste products, Rough surfaces, Light absorption, Refuse containers
Abstract: [Display omitted] • Solar-driven water evaporation using carbonized walnuts can turn waste into treasure. • carbonized walnut shell (Ar + H 2) showed a high η value (81.4%). • The water evaporation mechanism has been studied. Waste walnut shell was selected and carbonized in different atmospheres to prepare excellent light-to-heat conversion materials for efficient solar-driven water evaporation. Carbonized walnut shell has a unique concave structure and rough surface, and its light absorption rate is higher than 88% in the full-spectrum range of 200–2500 nm. Moreover, under one-sun irradiation, carbonized walnut shell in a hydrogen/argon atmosphere mixture has better water evaporation performance (1.22 kg m-1h−1) and a higher η value (81.4%) than the carbonized walnut shell in an argon atmosphere. The main reason was due to its higher degree of graphitization and smaller surface pores, which are beneficial to light-to-heat conversion. Our work highlights the great potential of the waste biomass material (walnut shell) for realizing a highly effective solar energy-driven water evaporation. [ABSTRACT FROM AUTHOR]
Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 153678888
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
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  Data: Turning waste into treasure: Carbonized walnut shell for solar-driven water evaporation.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Yuzhu%22">Wang, Yuzhu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Xinyi%22">Luo, Xinyi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Xinyuan%22">Song, Xinyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Wei%22">Guo, Wei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> guowei@hrbnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Kai%22">Yu, Kai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Chunyu%22">Yang, Chunyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ycy@hrbnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qu%2C+Fengyu%22">Qu, Fengyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> qufengyu@hrbnu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Letters%22">Materials Letters</searchLink>. Jan2022, Vol. 307, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Walnut%22">Walnut</searchLink><br /><searchLink fieldCode="DE" term="%22Waste+products%22">Waste products</searchLink><br /><searchLink fieldCode="DE" term="%22Rough+surfaces%22">Rough surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Light+absorption%22">Light absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Refuse+containers%22">Refuse containers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: [Display omitted] • Solar-driven water evaporation using carbonized walnuts can turn waste into treasure. • carbonized walnut shell (Ar + H 2) showed a high η value (81.4%). • The water evaporation mechanism has been studied. Waste walnut shell was selected and carbonized in different atmospheres to prepare excellent light-to-heat conversion materials for efficient solar-driven water evaporation. Carbonized walnut shell has a unique concave structure and rough surface, and its light absorption rate is higher than 88% in the full-spectrum range of 200–2500 nm. Moreover, under one-sun irradiation, carbonized walnut shell in a hydrogen/argon atmosphere mixture has better water evaporation performance (1.22 kg m-1h−1) and a higher η value (81.4%) than the carbonized walnut shell in an argon atmosphere. The main reason was due to its higher degree of graphitization and smaller surface pores, which are beneficial to light-to-heat conversion. Our work highlights the great potential of the waste biomass material (walnut shell) for realizing a highly effective solar energy-driven water evaporation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1016/j.matlet.2021.131057
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Walnut
        Type: general
      – SubjectFull: Waste products
        Type: general
      – SubjectFull: Rough surfaces
        Type: general
      – SubjectFull: Light absorption
        Type: general
      – SubjectFull: Refuse containers
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      – TitleFull: Turning waste into treasure: Carbonized walnut shell for solar-driven water evaporation.
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            NameFull: Wang, Yuzhu
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            NameFull: Luo, Xinyi
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            NameFull: Song, Xinyuan
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            NameFull: Guo, Wei
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            NameFull: Yu, Kai
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            NameFull: Yang, Chunyu
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            NameFull: Qu, Fengyu
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            – D: 15
              M: 01
              Text: Jan2022
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              Y: 2022
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              Value: 307
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            – TitleFull: Materials Letters
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