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Medientyp:
E-Artikel
Titel:
2D/2D h‐BN/N‐doped MoS2 Heterostructure Catalyst with Enhanced Peroxidase‐like Performance for Visual Colorimetric Determination of H2O2
Beteiligte:
Zhang, Xin;
Gao, Yanfang
Erschienen:
Wiley, 2020
Erschienen in:
Chemistry – An Asian Journal, 15 (2020) 8, Seite 1315-1323
Sprache:
Englisch
DOI:
10.1002/asia.201901753
ISSN:
1861-4728;
1861-471X
Entstehung:
Anmerkungen:
Beschreibung:
<jats:title>Abstract</jats:title><jats:p>Recently, nanozymes have attracted extensive attention because of their advantages of combining nanomaterials with enzymes. Herein, hexagonal boron nitride (h‐BN) and nitride‐doped molybdenum disulfide (N−MoS<jats:sub>2</jats:sub>) nano‐composites (h‐BN/N−MoS<jats:sub>2</jats:sub>) were synthesized by facile and cost‐effective liquid exfoliation with a solvothermal method in nontoxic ethanol solution. The results show that h‐BN, as a co‐catalyst, can not only dope into the lattice of MoS<jats:sub>2</jats:sub> but also form a heterogeneous structure with MoS<jats:sub>2</jats:sub>NSs. It expanded the layer spacing and specific surface area of MoS<jats:sub>2</jats:sub>NSs, which was beneficial to the contact between the catalyst and the substrate, and resulted in a synergistic enhancement of the catalytic activity of hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) with MoS<jats:sub>2</jats:sub>. A colorimetric determination platform of h‐BN/N−MoS<jats:sub>2</jats:sub>‐TMB‐H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub> was constructed. It exhibited a wide linear range of 1–1000 μM with a low limit of detection (LOD) of 0.4 μM under optimal conditions, high sensitivity and stability, as well as good reliability (99.4–110.0%) in practice, making the measurement system more widely applicable.1. Introduction</jats:p>