Tubular Structural Construction and Compositional Modulation of MoS2-based Hybrids for High-performance Catalytic Application

Abstract

The architectural optimization of multifunctional components within MoS2-based nanohybrids demonstrates potential for amplifying cooperative catalytic effects in biomimetic catalytic systems. Employing APTES@MoS2 composites as specialized sorbents, their inherent amine coordination ability and superficial negative properties were exploited to investigate their efficacy in adsorbing transition metal ions such as Ni2⁺, Fe³⁺, and Co²⁺ ions. High-temperature carbonization treatment gradually converted amorphous APTES polymer into N-doped carbon(denoted as CAPTES), while simultaneously enhancing crystallinity and enabling transition metal doping in MoS2 nanosheets(NSs) through thermal treatment, leading to enhanced catalytic performance. Dense decoration of palladium nanoparticles (Pd NPs) is incorporated to amplify the hydrophility and the catalytic efficiency of CAPTES@Fe-MoS2 nanocomposites. Benefiting from the hierarchical hollow configuration with extensively exposed edge sites, optimized charge transfer dynamics, and homogeneously distributed active centers, the engineered tubular heterostructures demonstrate exceptional catalytic performance in both 4-nitrophenol (4-NP) reduction and biomimetic enzymatic reactions. This template-directed synthesis strategy provides a scalable platform for manufacturing heterostructured MoS2-based materials with tunable synergistic functionalities, enabling advanced catalytic solutions for environmental and analytical applications.