Green Synthesis of Magnetic Fe<sub>2</sub>O<sub>3</sub> Nanoparticle with <i>Chenopodium glaucum</i> L. as Recyclable Heterogeneous Catalyst for One-Pot Reactions and Heavy Metal Adsorption
Rahul Thakur,
Navneet Kaur,
Manvinder Kaur,
Pradip K. Bhowmik,
Haesook Han,
Kishanpal Singh,
Fohad Mabood Husain,
Harvinder Singh Sohal
Affiliations
Rahul Thakur
Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
Navneet Kaur
Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
Manvinder Kaur
Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
Pradip K. Bhowmik
Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Box 454003, Las Vegas, NV 89154, USA
Haesook Han
Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Box 454003, Las Vegas, NV 89154, USA
Kishanpal Singh
Department of Chemistry, Punjabi University, Patiala 147002, Punjab, India
Fohad Mabood Husain
Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
Harvinder Singh Sohal
Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Punjab, India
The growth of the environment depends upon developing greener and ecological methods for managing pollutants and contamination from industrial wastewater, which causes significant effects on human health. The removal of these pollutants from wastewater using nanomaterials covers an ecological method that is free from expensive and secondary pollution. In this report, we developed magnetic iron nanoparticles from Chenopodium glaucum (CG), which showed excellent adsorption capacity at pH 5 for selective Hg2+ and Pb2+ metal ions among various heavy metal ions, with maximum adsorption capacities of 96.9 and 94.1%, respectively. These metals’ adsorption process conforms to the Langmuir model, which suggests that monolayer adsorption transpires on CG–Fe2O3 nanoparticles. CG–Fe2O3 nanoparticles also act as an efficient and recyclable heterogeneous catalyst for one-pot synthesis of xanthene derivatives, yielding products with high yields (up to 97%) and excellent purity (crystalline form) within a short timeframe (6 min) using microwave irradiations (at 120 W).
