...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Indian Chemical Society >Synthesis and characterization of ZnO and Al2O3 nanoparticles and their application in the chromium remediation studies
【24h】

Synthesis and characterization of ZnO and Al2O3 nanoparticles and their application in the chromium remediation studies

机译：ZnO和Al2O3纳米粒子的合成，表征及其在铬修复研究中的应用

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

Present work describes the synthesis of zinc oxide (ZnO) and aluminum oxide (Al2O3) nanoparticles (NPs) by simple chemical reduction method. The synthesized NPs were characterized using XRD, AFM and SEM. Both ZnO and Al2O3 NPs were used in the remediation studies to remove chromium(vi) from aqueous solution. Various process parameters such as pH, v/m ratio, contact time, initial concentration of adsorbate were evaluated to achieve optimum removal efficiency of chromium. The obtained results showed that- both the NPs acted as potential adsorbents in the removal of chromium from aqueous solution; maximum removal was seen at pH 5. The contact time required to achieve the equilibrium was 60 min for ZnO and 95 min for Al2O3. Both the NPs demonstrated good adsorption capacity against the concentration of adsorbate thrice. Optimization of different process parameters led to 100% removal efficiency with low amount of adsorbent (150 mg of ZnO NPs and 200 mg of Al2O3 NPs). Reusability of the synthesized NPs was tested which suggested them to be promising adsorbents for the removal of toxic heavy metals.
机译：目前的工作描述了通过简单的化学还原方法合成氧化锌（ZnO）和氧化铝（Al2O3）纳米粒子（NPs）。利用XRD，AFM和SEM对合成的NP进行表征。 ZnO和Al2O3 NP均用于修复研究中，以从水溶液中去除铬（vi）。评价了各种工艺参数，例如pH，v / m比，接触时间，吸附物的初始浓度，以实现最佳的铬去除效率。获得的结果表明-两种NPs都是从水溶液中去除铬的潜在吸附剂;在pH 5处可以看到最大的去除。ZnO达到平衡所需的接触时间为60分钟，Al2O3为95分钟。两种NP均表现出对三次吸附物浓度的良好吸附能力。不同工艺参数的优化导致了100％的去除效率和少量的吸附剂（150 mg ZnO NPs和200 mg Al2O3 NPs）。测试了合成NP的可重用性，表明它们是去除有毒重金属的有希望的吸附剂。

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