以一种腈纶基弱碱性离子交换纤维为材料,探讨了纤维型式（氯型、氢氧型）对吸附量和再生性能的影响。考察了溶液pH、温度对氯型纤维吸附量的影响,并进行相应的动力学实验。结果表明：转为氯型的纤维吸附与再生性能明显优于相应的氢氧型...以一种腈纶基弱碱性离子交换纤维为材料,探讨了纤维型式（氯型、氢氧型）对吸附量和再生性能的影响。考察了溶液pH、温度对氯型纤维吸附量的影响,并进行相应的动力学实验。结果表明：转为氯型的纤维吸附与再生性能明显优于相应的氢氧型纤维,该纤维在pH 2~3时吸附性能最好,温度越高吸附量越大。吸附过程符合准二级动力学模型（R2〉0.998）,吸附在30 min内基本达到平衡。纤维对六价铬的吸附容量可达376 mg g 1（pH=2,C0=300 mg L 1）,明显高于国外商品化的Fiban A-1离子交换纤维（152.9 mg g 1）;且经100次含铬电镀废水吸附再生循环后,六价铬去除率与纤维质量基本保持不变。展开更多
An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest ads...An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.展开更多
文摘以一种腈纶基弱碱性离子交换纤维为材料,探讨了纤维型式（氯型、氢氧型）对吸附量和再生性能的影响。考察了溶液pH、温度对氯型纤维吸附量的影响,并进行相应的动力学实验。结果表明：转为氯型的纤维吸附与再生性能明显优于相应的氢氧型纤维,该纤维在pH 2~3时吸附性能最好,温度越高吸附量越大。吸附过程符合准二级动力学模型（R2〉0.998）,吸附在30 min内基本达到平衡。纤维对六价铬的吸附容量可达376 mg g 1（pH=2,C0=300 mg L 1）,明显高于国外商品化的Fiban A-1离子交换纤维（152.9 mg g 1）;且经100次含铬电镀废水吸附再生循环后,六价铬去除率与纤维质量基本保持不变。
文摘An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.
