Preparation of modified rice husk ash for removing Cu2+ in aqueous media

Authors

  • Kim Tai Dang*
  • Xuan Hong Vu

Keywords:

adsorption isotherms, Cu2 , kinetics, rice husk ash

Abstract

In this study, rice husk ash was modified by MnSO4 precipitation oxidation method and was applied to treat Cu2+ in water. The specific properties of the modified rice husk ash were determined by XRD, EDX, SEM, and FT-IR. The analytical results showed that the presence of MnO2 in the material could increase the applicability in treating Cu2+ in neutral media. The factors during the treatment which were studied included the reaction time of Cu2+ adsorption, pH, adsorbent dosage, and Cu2+ concentration. The Cu2+ adsorption on the rice husk ash conformed to the Langmuir and Freundlich isothermal adsorption equation. The rates of adsorption were found to in accordance with the pseudo-second order kinetic equation.

Classification number

2.7

Author Biographies

Kim Tai Dang*

Department of Physics-Chemistry-Biology, Dong Thap University

Xuan Hong Vu

Nguyen Minh Quang High School, Hau Giang Province

Downloads

Published

2021-03-11

Received 13 June 2019; accepted 23 July 2019

How to Cite

Dang Kim Tai*, & Vu Xuan Hong. (2021). Preparation of modified rice husk ash for removing Cu2+ in aqueous media. Version B of Vietnam Journal of Science and Technology, 62(1). Retrieved from https://b.vjst.vn/index.php/ban_b/article/view/943

Issue

Vol. 62 No. 1 (2020): Volume 62 - Number 1 - January 2020

Section

Engineering and Technology