3D printed microchannel loaded with hematite nanoadsorbent for fluoride removal from water

R. Kumar Patel (1) , A. Kumar Chawla (1) , Patrick Loulergue (2) , B. Teychene (3) , J.K. Pandey (1)

1 UPES - University of Petroleum and Energy Studies [Dehradun]
2 ISCR - Institut des Sciences Chimiques de Rennes
3 IC2MP - Institut de Chimie des Milieux et Matériaux de Poitiers

3D printed microchannels were loaded with α-Fe 2 O 3 nanoparticles for fluoride removal from water. Devices having 35 microchannels of 2 and 1.5 mm diameter were fabricated and loaded with 4 and 3 g of nanoadsorbent respectively. Hematite nanoadsorbent used shown good fluoride removal efficiency with a defluoridation capacity of 2.5 mg/g (3 mg/L fluoride concentration, 4 g adsorbent, 1 mL/min flow rate at 25 o C and 7 pH). The customized and compact 3D devices could be an alternative for traditional columns being used for effective fluoride removal from water.

Keywords: Fluoride; Microstructure; Nanoparticles; Water; Adsorption; 3D printing

Domains: Chemical Sciences

R. Kumar Patel, A. Kumar Chawla, Patrick Loulergue, B. Teychene, J.K. Pandey. 3D printed microchannel loaded with hematite nanoadsorbent for fluoride removal from water. Materials Letters, 2019, 254, pp.190-193. ⟨10.1016/j.matlet.2019.07.061⟩. ⟨hal-02281769⟩