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Influence of ultrasound irradiation on cadmium cations adsorption by montmorillonite

机译:超声辐射对蒙脱土吸附镉阳离子的影响

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The objective of this work is study of the influence of ultrasound irradiation on adsorption properties of montmorillonite, contained in bentonite, mined in the Slovak deposit. First, structural properties of the adsorbent were characterized by Mossbauer spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy. For the adsorption experiments, cadmium, as a heavy metal ion, was selected. The adsorption has been studied by a batch method using an ultrasound device and a rotary shaker. The montmorillonite adsorption properties have been tested under different conditions such as pH of the solution, initial metal ions concentration and temperature. It was observed that sonication markedly influenced the adsorption capacity of montmorillonite and its value increased by approximately 40% in comparison with the corresponding capacity of the non-sonicated material. No evident effect of temperature on the adsorption capacity of montmorillonite was proved.
机译:这项工作的目的是研究超声波辐射对在斯洛伐克矿床开采的膨润土中所含蒙脱石的吸附性能的影响。首先,通过莫斯鲍尔光谱,傅立叶变换红外光谱和扫描电子显微镜对吸附剂的结构性质进行表征。对于吸附实验,选择了镉作为重金属离子。已经通过使用超声波装置和旋转振荡器的间歇方法研究了吸附。蒙脱土的吸附性能已在不同条件下进行了测试,例如溶液的pH,初始金属离子浓度和温度。可以看出,超声处理显着影响了蒙脱石的吸附能力,与非超声处理材料的相应能力相比,其值增加了约40%。没有证明温度对蒙脱石的吸附容量有明显影响。

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