Abstract

This study was conducted to synthesize copper(II) oxides (CuO) with dendrite, leaf and feather morphologies. Synthesized CuO with dendrite and leaf morphologies were characterized by XRD, SEM, and BET/BJH and CuO with feather morphology with XRD, SEM, BET/BJH, FTIR, TEM, and DRS techniques. The effect of various CuO morphologies on Zn(II) adsorption was investigated. Among the morphologies observed in all experiments, feather morphology showed the highest efficiency. In order to evaluate the parameters X₁ (mass of adsorbent (CuO feather)), X₂(pH) and X₃ (contact time) in Zn(II) adsorption, the design of the experiment was performed using the Box–Behnken Design (BBD) method. Finally, the optimum conditions, mass of adsorbent (0.14 g), pH (7.99), and contact time (44.78 h) the Zn(II) adsorption efficiency was 99.98%. In the kinetic study of the reaction, it was also found that the adsorption process follows a pseudo-second order kinetic model.

中文翻译：

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不同形态从水溶液吸附到氧化铜上的Zn（II）吸附的研究：使用响应面法的优化

摘要

进行了这项研究以合成具有枝晶，叶片和羽毛形态的氧化铜（CuO）。用XRD，SEM和BET / BJH对具有枝晶和叶片形态的CuO进行表征，并用XRD，SEM，BET / BJH，FTIR，TEM和DRS技术对具有羽毛形态的CuO进行表征。研究了各种CuO形态对Zn（II）吸附的影响。在所有实验中观察到的形态中，羽毛形态显示出最高的效率。为了评估参数X ₁（吸附剂的质量（CuO羽毛）），X ₂（pH）和X ₃（接触时间）对Zn（II）的吸附，使用Box–Behnken设计（BBD）方法进行了实验设计。最后，最佳条件，吸附剂质量（0.14 g），pH（7.99）和接触时间（44.78 h）对Zn（II）的吸附效率为99.98％。在反应的动力学研究中，还发现吸附过程遵循伪二级动力学模型。