Work

Gold Nanoparticles Decorated Borophene Nanosheets: An Efficient Catalyst for Ultrafast Chemical Dye Degradation of Methylene Blue and Rhodamine B

Year: 2025

Type: article

Abstract: Gold nanoparticles decorated borophene nanosheets (AuNPs‐BNS) have been synthesized in the absence of external reducing agents, stabilizers, and templates, and demonstrate their catalytic activity towards methylene blue (MB) and Rhodamine B (Rh‐B) as model organic compounds for ultrafast dye degradation. The AuNPs‐BNS catalyst (average spherical particle size of 7.86 ± 2 nm) decolorizes the MB and Rh‐B within 50 and 70 s, respectively. Furthermore, the time‐dependent UV–visible spectra (30 µL catalyst) indicate first‐order kinetics with rate constants of 0.0628 ± 0.008 s −1 for MB and 0.0496 ± 0.002 s −1 for Rh‐B, which is significantly faster compared to existing reports. Moreover, the dye degradation efficiency of ∼97% for MB and Rh‐B was achieved in a very short timescale. Besides, turnover frequency (TOF) is also calculated, and the obtained values of 4660 h −1 (MB) and 2289 h −1 (Rh‐B) suggest the excellent catalytic activity of the AuNPs‐BNS catalyst for efficient dye degradation under ambient conditions for clean water applications.

Source: ChemCatChem

DOI: 10.1002/cctc.202501286

Authors: Monika Senthilkumar, Vikram Venkatesan, Swati Panigrahi, Kothandaraman Ramanujam, Anandhakumar Sukeri

Institutions: SRM Institute of Science and Technology, Indian Institute of Technology Madras

Language: English

Topic: Nanomaterials for catalytic reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: bronze

Funders: Safari Club International Foundation, SRM Institute of Science and Technology, Indian Institute of Technology Madras

Awards: G2055523689, G4421580896, G8826630263