“Study on the Modification of Phu Yen Diatomite by Mixed Fe-Mn Oxide and the Use of the Modified Material As an Arsenic Removal Adsorbent in Water Environment”. Vietnam Journal of Catalysis and Adsorption, vol. 10, no. 1, Apr. 2021, pp. 13-20, https://doi.org/10.51316/jca.2021.003.