Di Ze-Chao, Ding Jun, Peng Xian-Jia, Li Yan-Hui, Luan Zhao-Kun, Liang Ji
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.
Chemosphere. 2006 Feb;62(5):861-5. doi: 10.1016/j.chemosphere.2004.06.044. Epub 2006 Jan 5.
Ceria nanoparticles supported on aligned carbon nanotubes (CeO(2)/ACNTs), a novel adsorbent for Cr(VI) from drinking water, were prepared by chemical reaction of CeCl(3) with NaOH in aligned carbon nanotube solution and subsequent heat treatment. The best Cr(VI) adsorption effect of CeO(2)/ACNTs occurs at a pH range of 3.0-7.4. The largest adsorption capacity of CeO(2)/ACNTs reaches 30.2 mg g(-1) at an equilibrium Cr(VI) concentration of 35.3 mg l(-1) at pH 7.0. The experiment results suggest that CeO(2)/ACNTs have great potential applications in environmental protection.
负载在定向碳纳米管上的二氧化铈纳米颗粒（CeO₂/ACNTs）是一种用于去除饮用水中六价铬的新型吸附剂，它通过在定向碳纳米管溶液中使CeCl₃与NaOH发生化学反应并随后进行热处理来制备。CeO₂/ACNTs对六价铬的最佳吸附效果出现在pH值为3.0 - 7.4的范围内。在pH值为7.0、平衡六价铬浓度为35.3 mg l⁻¹时，CeO₂/ACNTs的最大吸附容量达到30.2 mg g⁻¹。实验结果表明CeO₂/ACNTs在环境保护方面具有巨大的潜在应用价值。
