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首页> 外文期刊>World review of science, technology and sustainable development >Preparation and adsorption properties of chitosan-bound Fe_3O_4 mOagnetic nanoparticles for phenol removal from aqueous solution
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Preparation and adsorption properties of chitosan-bound Fe_3O_4 mOagnetic nanoparticles for phenol removal from aqueous solution

机译：壳聚糖结合的Fe_3O_4菱形纳米颗粒的制备及吸附性能

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摘要

The purpose of this study was the investigation of the removal of phenol with magnetic chitosan nanoparticles. The magnetic chitosan nanoparticles were prepared by co-precipitation method and eharacterised by means of X-ray diffraction (XRD), field emission scanning electron microscope (FESM). Four independent variables, viz. contact time (10-90 min), pH of solution (2-10), initial phenol concentration (5—45 mg/1), and adsorbent dose (0.5-2.5 g/l) were transformed to coded values and quadratic model was built to predict the responses. Analysis of variance (ANOVA) and t-test statistics were used to test the significance of the independent variables and their interactions. The experimental results showed that the particles size was in the range of 30-50 nm. The results showed that the Fe_3O_4-chitosan removed over 84% phenol within 30 min, pH 4, and sorbent dosage 1.12 g. The central composite design showed that the fundamental parameters were pH and initial phenol concentration had the main effect on phenol removal.
机译：这项研究的目的是研究磁性壳聚糖纳米粒子对苯酚的去除。采用共沉淀法制备了磁性壳聚糖纳米粒子，并通过X射线衍射（XRD），场发射扫描电子显微镜（FESM）进行了表征。四个独立变量，即。接触时间（10-90分钟），溶液的pH值（2-10），苯酚初始浓度（5-45 mg / 1）和吸附剂剂量（0.5-2.5 g / l）被转换为编码值，并且二次模型为用于预测响应。方差分析（ANOVA）和t检验统计量用于检验自变量及其相互作用的显着性。实验结果表明，颗粒尺寸在30-50nm范围内。结果表明，Fe_3O_4-壳聚糖在30 min，pH 4和吸附剂剂量1.12 g内能去除84％以上的苯酚。中心复合设计表明，基本参数是pH，初始苯酚浓度对去除苯酚有主要影响。

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    Monireh Majlesi; Hasti Daraei;

  • 作者单位

    Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran, Department of Environmental Health Engineering, Shahid Beheshti University of Medical, Sciences, Tehran, Iran;

    Student Research Committee,Department of Environmental Health Engineering,School of Public Health,Shahid Beheshti University of Medical Sciences, Tehran, Iran;

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  • 正文语种 eng
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  • 关键词

    nanoparticles; phenol; chitosan; magnetic;

    机译：纳米粒子苯酚;壳聚糖磁性;

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