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首页> 外文期刊>Environmental Science and Pollution Research >Synthesis and characterization of hydroxyapatite nanoparticles impregnated on apple pomace to enhanced adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueous solution
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Synthesis and characterization of hydroxyapatite nanoparticles impregnated on apple pomace to enhanced adsorption of Pb(II), Cd(II), and Ni(II) ions from aqueous solution

机译:苹果渣浸渍羟基磷灰石纳米粒子的合成与表征,增强水溶液中Pb(II),Cd(II),Cd(II)和Ni(II)离子的吸附

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Hydroxyapatite nanoparticles were synthesized, characterized, and impregnated onto apple pomace surface (HANP@AP) for efficient removal of Pb(II), Cd(II), and Ni(II) ions from water. HANP@AP was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), transmission electron microscope (TEM), X-ray diffraction (XRD), and surface area analysis. Batch sorption studies were carried out to investigate the influence of different parameters as amount of dose (g), pH, time (min), and initial concentration (mg L-1) on adsorption process. Experimental kinetic data followed pseudo-second-order model and equilibrium data well fitted to Langmuir adsorption model with maximum adsorption capacities of 303, 250, and 100 mg g(-1) for Pb(II), Cd(II), and Ni(II) ions, respectively. Competitive adsorption of Pb(II), Cd(II), and Ni(II) ions in presences of each other was studied to evaluate the removal efficiency of HANP@AP against multi metal-loaded water. HANP@AP was successfully applied to real industrial wastewater with 100 % removal of all three metal ions even at high concentration. HANP@AP could be recycled for four, four, and three cycles in case of Pb(II), Cd(II) and Ni(II), respectively. The study showed that HANP@AP is fast, cost effective, and environmental friendly adsorbent for removal of Pb(II), Cd(II), and Ni(II) ions from real industrial wastewater.
机译:羟磷灰石纳米颗粒合成,其特征在于,和用于有效地除去铅(II),镉(II)的浸渍到苹果渣表面(HANP @ AP),并从水的Ni(II)离子。 HANP @ AP的特点是傅里叶变换红外光谱(FTIR),扫描电子显微镜(SEM),能量分散光谱法(EDS),透射电子显微镜(TEM),X射线衍射(XRD),和表面积分析。批次吸附研究进行了调查不同的参数作为剂量的量(g),pH值,时间(分钟),和在吸附过程的初始浓度(mg L-1)的影响。实验的动力学数据,然后很好地拟合到Langmuir吸附模型的最大吸附容量伪二阶模型和平衡数据303,250,和100毫克克(-1)的Pb(II),镉(II),和Ni( II)离子,分别。铅(II),镉(II),和Ni中的竞争吸附(II)在彼此的派驻离子进行了研究,以评估HANP的去除效率@ AP针对多负载金属的水。 HANP @ AP成功地应用到实际的工业废水并除去100%的所有三种金属离子的,即使在高浓度。 HANP @ AP可以在铅(II),镉(II)和镍分别(II),的情况下,可以再循环用于四,四,和三个周期。研究表明,HANP @ AP速度快,去除铅(II),镉(II)的成本效益和环保的吸附剂,并从实际工业废水的Ni(II)离子。

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