Comprehensive Environmental Chemistry Experiment: Preparation and Characterization of MgAl-LDHs and Its Adsorption Effect on Disinfection Byproduct in Water
YANG Yi-Qiong, DING Qiao, ZHANG Xiao-Dong
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
Abstract A layered double hydroxide adsorbent was prepared and its bromate adsorptive performance was tested. The adsorption and modern test technology are combined with environmental chemistry experiment teaching. The MgAl-LDHs adsorbent was prepared by hydrothermal synthesis method. The CLDHs with ‘memory effect’ was achieved after calcination. The structure and morphology of the adsorbents were characterized by X-ray Powder Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TG) and Scanning Electron Microscope (SEM). The influence of the MgAl-LDHs on the adsorptive activity of bromate was discussed based on the analysis of the data of the material and the results of the performance test, and the mechanism of the adsorption reaction was further explored. This experiment can enable students to acquire the frontiers of the catalytic discipline, understand the adsorption reaction and the basic principles of various modern test techniques. It can also improve students' comprehensive experimental ability, stimulate independent thinking and innovative consciousness, which is beneficial to the cultivation of innovative talents.
YANG Yi-Qiong, DING Qiao, ZHANG Xiao-Dong. Comprehensive Environmental Chemistry Experiment: Preparation and Characterization of MgAl-LDHs and Its Adsorption Effect on Disinfection Byproduct in Water[J]. Chinese Journal of Chemical Education, 2018, 39(14): 63-66.
