Attapulgite Nanorods Incorporated MXene Lamellar Membranes for Enhanced Decontamination of Dye Wastewater

Shiyang Zhang, Zhi Wang, Mingwei Cai, Xiaochuang Lu, Tianju Fan, Ruibin Wang, Yidong Liu, Yonggang Min

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Due to its unique physical and chemical properties, MXene has recently attracted much attention as a promising candidate for wastewater treatment. However, the low water permeation flux of MXene membrane remains a challenge that has not been fully solved. In this study, attapulgite was used to increase the flux of MXene membrane through a facile one-pot method, during which the MXene nanosheets were self-assembled while being intercalated by the attapulgite nanorods to finally form the composite membranes. Under optimal conditions, an increase of water permeation flux of 97.31% could be observed, which was attributed to the broadened nano-channel upon the adequate intercalation of attapulgite nanorods. Its permeation flux and rejection rate for methylene blue (MB) were further studied for diverse applications. In contrast to bare MXene, the permeation flux increased by 61.72% with a still high rejection rate of 90.67%, owing to the size rejection. Overcoming a key technique barrier, this work successfully improved the water permeability of MXene by inserting attapulgite nanorods, heralding the exciting prospects of MXene-based lamellar membrane in dye wastewater treatment.

Original languageEnglish
Article number3094
JournalNanomaterials
Volume12
Issue number18
DOIs
StatePublished - 6 Sep 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

Funding

This work was supported by the by National Key R&D Program of China (2020YFB0408100), NSFC (U20A20340), the Program for Guangdong Introducing Innovative and Entrepreneurial Team (2016ZT06C412), Guangzhou Hongmian Project (HMJH-2020-0012) and Foshan Introducing Innovative and Entrepreneurial Teams (1920001000108).

FundersFunder number
Foshan Introducing Innovative and Entrepreneurial Teams1920001000108
Guangzhou Hongmian ProjectHMJH-2020-0012
Program for Guangdong Introducing Innovative and Entrepreneurial Team2016ZT06C412
National Natural Science Foundation of ChinaU20A20340
National Key Research and Development Program of China2020YFB0408100

    Keywords

    • MXene
    • attapulgite
    • methylene blue
    • permeation flux
    • rejection

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