Greener design and characterization of biochar/Fe3O4@SiO2-Ag magnetic nanocomposite as efficient catalyst for synthesis of bioactive benzylpyrazolyl coumarin derivatives

被引：6

作者：

Dharmendra, Dharmendra ^{[1
]}

Chundawat, Priyanka ^{[1
]}

Vyas, Yogeshwari ^{[1
]}

Chaubisa, Purnima ^{[1
]}

Ameta, Chetna ^{[1
]}

机构：

[1] Mohanlal Sukhadia Univ, Dept Chem, Udaipur, Rajasthan, India

来源：

RSC ADVANCES | 2023年 / 13卷 / 21期

关键词：

SILVER NANOPARTICLES; BIOCHAR; NANOCATALYST; FE3O4;

D O I：

10.1039/d3ra00869j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The study aimed to develop an efficient catalyst, biochar/Fe3O4@SiO2-Ag magnetic nanocomposite, to synthesize bioactive benzylpyrazolyl coumarin derivatives through a one-pot multicomponent reaction. The catalyst was prepared using Ag nanoparticles synthesized with Lawsonia inermis leaf extract and carbon-based biochar obtained through pyrolysis of Eucalyptus globulus bark. The nanocomposite contained a silica-based interlayer, highly dispersed Ag nanoparticles, and a central magnetite core, which responded well to external fields. The biochar/Fe3O4@SiO2-Ag nanocomposite showed excellent catalytic activity and could be easily recovered using an external magnet and reused five times without significant loss of performance. The resulting products were tested for antimicrobial activity and showed significant activity against various microorganisms.

引用

页码：14594 / 14613

页数：20

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