【摘要】 有机染料在生活和工业生产中被广泛使用,由于染料的过度使用而带来的污染日益严重,对人类的健康产生重大威胁.笔者通过一步水热法合成由多个纳米片组成的束状Co_0.85Se/Cu（OH）₂纳米复合物.室温下该复合物对废水中的刚果红（CR）具有较高的吸附能力,对CR最大吸附容量为1 450.0 mg·g^-1.对CR的吸附动力学方程和吸附等温线模型进行探究,结果表明:纳米复合物对CR的吸附过程符合准二级动力学方程和Langmuir等温吸附模型.该复合物还具有优异的稳定性和可回收性.更多还原

【Abstract】 Organic dyestuff is widely used in daily life and industrial production. However, more and more serious industrial and domestic pollution is resulted due to the excessive use of dyestuff, which poses a major threat to human health. In this study, the bunchy Co_0.85Se/Cu（OH）₂ nanocomposites with multiple nanosheets have been synthesized via one step hydrothermal method. The as-synthesized nanocomposites have high absorptive performance for Congo red（CR） pollutants in wastewater and the maximum adsorption capacity reaches 1 450.0 mg·g^-1 at room temperature. The adsorption kinetics and isotherms of CR have been explored and the results showed that the adsorption process obeys the quasi-second-order kinetic equation and Langmuir isotherm model. In addition, the nanocomposites also displayed outstanding stability and recyclability for removal of CR.更多还原