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Turkish Journal of Chemistry

Abstract

Herein, AgCu nanodendrites were fabricated via a facile one-step displacement reaction at ambient temperature with Zn powder as the reducing agent. The morphology, structure, and composition of the products were systematically characterized by transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The results demonstrate that the structure and morphology of the catalysts are strongly dependent on the Ag/Cu molar ratio. The catalytic performance was evaluated by the reduction of 4-nitrophenol (4-NP) at room temperature, in comparison with monometallic Ag and Cu catalysts. The catalytic activity follows the order Ag1Cu1 > Ag1Cu3 > Ag3Cu1 > Ag > Cu. The optimized Ag1Cu1 catalyst achieves 98.6% 4-NP conversion within 341 s, which is significantly faster than monometallic Ag (98.5% in 566 s) and Cu (98.8% in 1608 s). Moreover, the Ag1Cu1 catalyst retains 87% conversion after five consecutive cycles, showing good stability and reusability. The unique aggregated dendritic structure not only leads to composition-dependent catalytic activity but also facilitates catalyst separation from the reaction system. This work provides a simple and efficient strategy for constructing bimetallic nanodendrites and offers promising prospects for environmental remediation of wastewater containing 4-NP.

Author ORCID Identifier

JUN LIU: 0000-0002-1772-5118

HONGGUANG LIAO: 0000-0002-0169-4046

XUANYAN LIU: 0000-0002-8874-9803

DOI

10.55730/1300-0527.3918

Keywords

Displacement synthesis, AgCu nanodendrites, 4-nitrophenol reduction, catalytic durability, nanostructure

First Page

542

Last Page

553

Publisher

The Scientific and Technological Research Council of Türkiye (TÜBİTAK)

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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