田口方法
吸附
非阻塞I/O
水溶液
氧化镍
响应面法
纳米颗粒
核化学
化学
材料科学
化学工程
镍
冶金
色谱法
纳米技术
复合材料
有机化学
工程类
催化作用
作者
Nasim Ziaeifar,Morteza Khosravi,Mohammad A. Behnajady,Mahmoud Reza Sohrabi,Nasser Modirshahla
摘要
In the present study, nickel oxide nanoparticles synthesized by the sol–gel method were used as an effective adsorbent for the removal of Cr(VI) from aqueous solutions. To do so, the effect of four parameters including the concentration of Cr(VI), the dosage of NiO, contact time, and pH on the removal of Cr(VI) by NiO nanoparticles were studied. In order to examine and describe the optimum conditions for each of the mentioned parameters, Taguchi and response surface methods were used. The results of the experiment using Taguchi and response surface methods indicated the greater effect of the NiO adsorbent parameter in comparison to the other parameters in the adsorption of Cr(VI) by NiO nanoparticles, and showed that the increase in contact time and pH does not affect the removal percentage of Cr(VI) significantly.
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