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Porous alkali‐activated material from hypergolic coal gangue by microwave foaming for methylene blue removal.

  • Published In: Journal of the American Ceramic Society, 2023, v. 106, n. 2. P. 1473 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Li, Xinyu; Liu, Lei; Bai, Chengying; Yang, Kun; Zheng, Ting; Lu, Shuang; Li, Hongqiang; Qiao, Yingjie; Colombo, Paolo 3 of 3

Abstract

Overall, 100% hypergolic coal gangue (HCG)‐based geopolymer foams were produced by a novel saponification‐microwave foaming combined route. Microwave foaming with and without expired vegetable oil was first used to produce CG‐based geopolymer foams. Macropores were mainly generated by microwave foaming, and mesopores were mainly obtained by the addition of expired soybean oil that underwent a saponification reaction. The effects of the oil content on the density, porosity, pore morphology, compression strength, and methylene blue adsorption properties were studied. High total porosity (85.9–89.0 vol%) and acceptable compression strength (0.46–1.1 MPa) HCG‐based geopolymer foams were produced. Foams with 12.59 wt% oil exhibited the best adsorption properties, with an adsorption capacity up to 9.4 mg/g and high removal efficiency of about 95.3%. These solid‐waste‐based porous components are promising monolithic adsorbents for wastewater treatment. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:Journal of the American Ceramic Society. 2023/02, Vol. 106, Issue 2, p1473
  • Document Type:Article
  • Subject Area:Chemistry
  • Publication Date:2023
  • ISSN:0002-7820
  • DOI:10.1111/jace.18812
  • Accession Number:160678633
  • Copyright Statement:Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell 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.)

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