科研之友
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摘要
A facile anion-exchange precipitation method was used to synthesize bifunctional Ag/AgBr/CoNiNO3 layered double hydroxide (LDH) nanocomposites by adding AgNO3 solution to a suspension of CoNiBr LDH. The Ag/AgBr nanoparticles were highly dispersed on the sheets of CoNiNO3 LDH. The prepared nanocomposites were used to adsorb and photocatalytically degrade organic pollutants from water. Without light illumination, the nanocomposites quickly adsorbed methyl orange, and the adsorptive capacity, which can reach 230mgg1, is much higher than those of CoNiBr LDH, Ag/AgBr, and activated carbon. The photocatalytic activities of the nanocomposites for the removal of dyes and phenol are higher than those of CoNiBr LDH and Ag/AgBr. The proposed method can be applied to prepare other LDH/silver salt composites. The high absorptive capacity and good photocatalytic activity of such nanostructures could have wide applications in wastewater treatment.
- 出版日期2013-2
- 单位山东农业大学
