A series of single walled carbon nanotubes(SWCNTs)and multiwalled carbon nanotubes(MWCNTs)were prepared via pretreating with nitric acid and calcining at different temperatures，and their performances of bromate removal were tested.The results indicated that SWCNTs displayed higher removal rate than that of MWCNTs，and the bromate removal rate of the adsorbents was dependent on the calcining temperature.Bromate removal rate increased with calcining temperatures.The prepared CNTs were characterized by BET，TEM，XRD，Raman，XPS and Zeta potentials.The XPS results showed that the amount of surface O atoms of the adsorbents was increased after adsorbing bromate.The Zeta potential results indicated that the IEPs of the adsorbents were changed with calcining temperatures.
Zhao Yumin，Wan Haiqin*，Xu Zhaoyi.
Adsorption and reduction of bromate over carbon nanotubes[J]. Journal of Nanjing University(Natural Sciences), 2017, 53(2): 286
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