Bimetallic Zn/Cu and Co/Ni modified MCM-41: Synthesis, characterization, and DPPH scavenging activity
Year: 2026
Type: article
Abstract: The development of bimetallic catalysts has garnered significant interest due to their enhanced performance in various applications, particularly in antioxidant properties. In this study, we investigate the amine functionalized MCM-41 as a host material for incorporating cobalt and nickel (MCM-41-Co/Ni) as well as zinc and copper (MCM-41-Zn/Cu) to explore their DPPH radical scavenging capabilities. MCM-41, a mesoporous silica material, serves as an ideal support for metal deposition due to its high surface area and tunable pore structure. The incorporation of Co/Ni and Zn/Cu into the amine functionalized MCM-41 matrix significantly enhances its DPPH scavenging activity due to combined effect of the incorporated metal species. Surface modification of MCM-41 to MCM-41-NH 2 facilitates the optimization of its structural properties, thereby improving its stability and reactivity for antioxidant applications. The study highlights the potential of bimetallic MCM-41 materials to enhance DPPH radical-scavenging activity. Our results demonstrate that the incorporation of Zn/Cu into the MCM-41 matrix substantially enhances its DPPH radical scavenging activity, increasing it from 10.7% for MCM-41-NH 2 to 45.7% for MCM-41-Zn/Cu. In contrast, the incorporation of Co/Ni results in only a modest increase to 28%, suggesting that the combined effect of the incorporated metal species is more pronounced for the Zn/Cu-modified MCM-41.
Source: Next Materials
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,280
Funder: Human Resource Development Group
OpenAlex ID: W7212428609