“Synthesis, characterization and application of zero valent iron nanoparticle for Cr(VI) removal”, Int. J. Curr. Eng. Technol., vol. 1, no. 1.Special Issue, pp. 37–42, Sep. 2013, Accessed: Jul. 26, 2026. [Online]. Available: https://ijcet.evegenis.org/index.php/ijcet/article/view/3799