• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Environmental Science and Technology >Ferrous oxalate, maghemite and hematite nanorods as efficient adsorbents for decontamination of Congo red dye from aqueous system
【24h】

Ferrous oxalate, maghemite and hematite nanorods as efficient adsorbents for decontamination of Congo red dye from aqueous system

机译：草酸亚铁，磁赤铁矿和赤铁矿纳米棒可作为刚果红染料从水性体系中去污的有效吸附剂

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this present study, we have synthesized ferrous oxalate nanorods by a modified co-precipitation methods. The obtained nanomaterial (ferrous oxalate nanorod) was calcined at higher temperatures to form both maghemite and hematite nanorods. The morphology, size, crystalline phases, formation and surface area of the nanorods were characterized by scanning electron microscope, transmission electron microscope, X-ray diffraction, Fourier transform infrared spectroscope, ultraviolet-visible diffuse reflectance spectroscope and Brunauer-Emmett-Teller surface area analytical techniques. The results showed that high-yield aligned nanorods with a typical diameter of 100-200 nm and length up to micrometers were formed. The obtained rod-shaped nanomaterials (i.e., ferrous oxalate, maghemite and hematite) were used as adsorbents and were applied to remove Congo red (CR) dye molecules, which was used as a model of organic pollutants in aqueous solution. The adsorption isotherms and kinetics of removal of CR were studied. It was found that the adsorption capacity of maghemite nanorod is highest among the three adsorbents and can be regarded as an effective adsorbent for removal of CR from aqueous solution.
机译：在本研究中，我们通过改进的共沉淀方法合成了草酸亚铁纳米棒。将获得的纳米材料（草酸亚铁纳米棒）在更高的温度下煅烧，以形成磁赤铁矿和赤铁矿纳米棒。通过扫描电子显微镜，透射电子显微镜，X射线衍射，傅立叶变换红外光谱仪，紫外可见漫反射光谱仪和Brunauer-Emmett-Teller表面积来表征纳米棒的形态，尺寸，晶相，形成和表面积。分析技术。结果表明，形成了典型直径为100-200 nm，长度可达微米的高产率取向纳米棒。将获得的棒状纳米材料（草酸亚铁，磁赤铁矿和赤铁矿）用作吸附剂，并用于去除刚果红（CR）染料分子，该染料被用作水溶液中有机污染物的模型。研究了吸附等温线和去除CR的动力学。发现在三种吸附剂中，磁赤铁矿纳米棒的吸附能力最高，并且可以被认为是从水溶液中去除CR的有效吸附剂。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号