改性玉米秸秆对Cu2+吸附性能研究

Industrial Water Treatment(2020)

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Abstract
研究了NaOH、HNO3改性玉米秸秆对水中Cu2+的吸附性能及吸附特性.研究表明,改性后的秸秆表面光滑,结晶指数高,对Cu2+的吸附容量增大.相比未改性玉米秸秆和酸改性玉米秸秆,碱改性玉米秸秆对Cu2+的吸附效果最好.碱改性玉米秸秆对Cu2+的吸附能较好地符合Freundlich方程和伪二级动力学模型.初步推断吸附机理是秸秆表面官能团与Cu2+络合形成复合体的化学吸附过程.
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