Abstract：
:Iron oxyhydroxides (FeOOH) are common crystalline forms of iron which play an important role in catalysis through a series of reduction-oxidation reactions. In this paper, Ce substituted goethite (Ce0.1Fe0.9OOH) was prepared by isomorphous substitution method, characterized by XRD, SEM, TEM-EDS, FTIR, and used for the catalytic ozonation of sulfamethazine (SMT). The results showed that the catalyst can significantly enhance the mineralization of SMT, and more than 42.1% SMT were mineralized in the presence of the catalyst, which is 1.74 times higher than ozonation alone. Moreover, with addition of catalyst, more ozone was dissolved into solution. The solution pH decreased due to small-molecule organic acids formation. The catalytic activity decreased slightly during the repeated batch experiments, due to the corrosion of the catalyst and the adsorption of the residual intermediates on the catalyst surface.
journal_name
Chemospherejournal_title
Chemosphereauthors
Bai Z,Yang Q,Wang Jdoi
10.1016/j.chemosphere.2016.07.012subject
Has Abstractpub_date
2016-10-01 00:00:00pages
174-180eissn
0045-6535issn
1879-1298pii
S0045-6535(16)30896-7journal_volume
161pub_type
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