Abstracts Book - IMRC 2018

• SF2-O026
ARSENIC (V) REMOVAL USING NANO FUNCIONALIZED Fe3O4/TiO2
ADSORBENTS OF LOW-COST
Myriam Solís López 1 , Drisya Karathuparathottathil Damodharan 2 , Roberto Hernandez 2 ,
Velumani Subramaniam 2
1 Centro de Investigación y de Estudios Avanzados del IPN - CINVESTAV, Programa en
Nanociencias y Nanotecnología, Mexico. 2 Centro de Investigación y de Estudios Avanzados del
IPN - CINVESTAV, Departamento de Ingeniería Eléctrica, Mexico.
Arsenic (As) produces dramatic effects on health, and most conventional
treatments are not efficient to remove it or are economically prohibitive.
Technologies and methods for efficient As removal have been developed and
proposed worldwide. However, adsorption with functionalized magnetic
nanomaterials is one of the best alternatives, due to its flexibility and efficient
energy use. In this work, red mud and fly ash nano funtionalized Fe 3 O 4 /TiO 2 were
investigated for their application as materials to adsorb As water. The
adsorbents were coated with Fe 3 O 4 /TiO 2 nanocompositos generated by sol-gel
process. XRD, Raman, SEM, N 2 physiosorption were used to investigate the
crystal structure and morphology and textural of the materials. After analysis of
the affinity of solids with different degrees of functionalization towards As, the
material 8F2T/RM resulted in maximum arsenic adsorption capacities. The
adsorption equilibrium was adjusted Langmuir model and exhibited low
sensitivity to temperature changes. The results suggested that the material
8F2T/RM is an effective adsorbent for the As removal polluted water. Further
studies are needed to analyse the influence of competing anions as well as the
regeneration of the adsorbents.
Acknowledgment:
The authors wish to gratefully acknowledge the financial support provided by
the CONACyT-SENER 263043 project.
Keywords: As removal, nano funtionalization, low-cost adsorbents
Presenting authors email: solisl.my@gmail.com