Department of Botany;
Institute of Science;
Banaras Hindu University;
Varanasi 221005;
India;
Department of Chemical Engineering and Technology;
Indian Institute of Technology;
Banaras Hindu University;
Varanasi 221005;
Uttar Pradesh;
India;
Lagerstroemia speciosa; Magnetic nanoparticles; Co-precipitation; Cr(Ⅵ)ions; Adsorption capacity;