Multifunctional bionanohybrids of graphene oxide/β-cyclodextrin for applications in methylene blue adsorption, solvent response, and smart light-driven

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Xue Min Yang - , Fujian University of Technology, Dresden University of Applied Sciences (HTW), TUD Dresden University of Technology (Joint first author)
  • Yu Ping Wu - , Fujian University of Technology (Joint first author)
  • Yue Qi - , Institute of Lightweight Engineering and Polymer Technology, Dresden University of Applied Sciences (HTW) (Author)
  • Meng Ting Zheng - , Fujian University of Technology (Author)
  • Fen Xie - , Hunan Police Academy (Author)
  • Qian Ting Wang - , Fujian University of Technology, Xiamen University of Technology (Author)
  • Xue Qing Xiao - , Fujian University of Technology (Author)
  • Dan Xiao - , Fujian University of Technology, Dresden University of Applied Sciences (HTW) (Author)

Abstract

In this study, a multifunctional graphene oxide/β-cyclodextrin bionanohybrids (BWGO) was prepared successfully. The structure, morphology, adsorption capacity, solvent response, and light-driven properties of the BWGO were systematically investigated through the in-situ formation of an asymmetric gradient structure. The maximum adsorption value of BWGO based on bio-nanohybrids was 81.27 mg·g−1 for methylene blue (MB), which fitted the Langmuir isotherm in accordance with the pseudo-secondary kinetic model. Additionally, the host–guest interaction model of between BWGO and MB (in ratios of 1:1 or 1:2) was proposed by ROESY. Remarkably, the BWGO exhibited not only unique and exceptional responses to organic hazard solvents, self-driven, and photothermal responses, but also demonstrated controllable object loading and shape memory useful for soft grasping. More importantly, the related mechanisms of adsorption and behaviors driven by multiple stimuli (solvent, light) were elucidated through the host–guest interaction, wrinkled structure, gradient solvent swelling effects, and conformational changes in the macromolecular chain. This work not only introduces the multifunctional bionanohybrid materials with a wrinkled structure for the adsorption of organic dyes, but also opens avenues for potential applications in smart windows, soft grasping, and biomimetic industrial materials.

Details

Original languageEnglish
Article number124977
Number of pages9
JournalJournal of Molecular Liquids
Volume404
Publication statusPublished - 15 Jun 2024
Peer-reviewedYes

Keywords