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Amine Functionalization and Structural Design for Constructing Tubular MoS₂-Based Composites through an

Yan Chen¹, Huanhuan Li¹, Jingli Xu¹

¹College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.

Langmuir : the ACS Journal of Surfaces and Colloids

|May 20, 2025

Summary

This study presents novel molybdenum disulfide (MoS₂)-based microtubes for efficient noble metal ion recovery and catalysis. These APTES@MoS₂ microtubes offer a promising solution for advanced applications in energy and diagnostics.

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Area of Science:

Materials Science
Nanotechnology
Catalysis

Background:

Molybdenum disulfide (MoS₂)-based composites show great catalytic potential.
Challenges include nanosheet aggregation and functionalization difficulties.

Purpose of the Study:

To synthesize and characterize 1D APTES microtubes decorated with MoS₂ nanosheets (APTES@MoS₂).
To evaluate the efficacy of APTES@MoS₂ in recovering noble metal ions (Ag⁺, Au³⁺, Pd²⁺).
To explore the catalytic activity of the resulting metal-loaded composites.

Main Methods:

Self-template-directed synthesis of APTES@MoS₂ microtubes.
Utilizing APTES@MoS₂ for noble metal ion capture via self-reduction and chemical stability.
Catalytic evaluation of APTES@MoS₂-metal composites in 4-nitrophenol conversion.

Main Results:

APTES@MoS₂ microtubes possess abundant amine groups and active sites.
Efficient recovery of Ag⁺, Au³⁺, and Pd²⁺ ions was achieved.
The resulting composites exhibited exceptional catalytic efficacy in 4-nitrophenol reduction.

Conclusions:

A novel, economically viable method for fabricating MoS₂-engineered nanohybrids was developed.
APTES@MoS₂ microtubes show significant promise for noble metal recovery and catalysis.
The versatile templating approach using MoO₃@APTES precursors enables diverse tubular nanostructures for various applications.