Removal of Perchlorate in Water by Calcined Mgal-CO3 Layered Double Hydroxides
Document Type
Article
Publication Date
1-1-2013
Journal / Book Title
Water Environment Research
Abstract
Perchlorate is widely known as an inorganic endocrine disruptor. In this study, MgAl-CO3 layered double hydroxides with different Mg/Al molar ratios were prepared using a coprecipitation method and followed by a calcination process at a temperature range of 300 to 7008C. Results showed that the best synthesis conditions were a calcination temperature of 550°C and Mg/Al molar ratio of 3. Further, the adsorbent and its adsorption product were characterized by x-ray diffraction, Fourier transform-infrared spectroscopy, and thermogravimetric-differential thermal analysis. The layered double hydroxides structures in the adsorbent were lost during calcination at 550°C but were reconstructed subsequent to adsorption of perchlorate, indicating that the "memory effect" appeared to play an important role in perchlorate adsorption. The perchlorate adsorption pattern was best described by the pseudo-second-order kinetics model, while the Freundlich isotherms appropriately explained perchlorate adsorption data.
DOI
10.2175/106143013X13596524516103
MSU Digital Commons Citation
Yiqiong, Yang; Naiyun, Gao; Deng, Yang; and Guoping, Yu, "Removal of Perchlorate in Water by Calcined Mgal-CO3 Layered Double Hydroxides" (2013). Department of Earth and Environmental Studies Faculty Scholarship and Creative Works. 514.
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/514
Published Citation
Yang, Y., Gao, N., Deng, Y., & Yu, G. (2013). Removal of perchlorate in water by calcined MgAl-CO3 layered double hydroxides. Water environment research : a research publication of the Water Environment Federation, 85(4), 331–339. https://doi.org/10.2175/106143013x13596524516103
