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利用二硫化碳(CS2)改性松针作为新型生物材料,对溶液中Cu~(2+)进行吸附去除。结果表明:当pH=7、吸附剂剂量为0.4g、反应时间为60min时,该材料对100mL 50mg/L含铜废水的去除率达94.7%;伪二级动力学方程能较好地拟合该材料对Cu~(2+)的吸附动力学过程,揭示了其吸附主要是离子交换吸附;Langmuir方程能较好地拟合该材料对Cu~(2+)的等温吸附过程,表明其吸附主要是单分子层吸附。
Using CS2 modified pine needles as new biomaterials, the Cu2 + in the solution was removed by adsorption. The results showed that when pH = 7, the dosage of the adsorbent was 0.4g and the reaction time was 60min, the removal rate of the material to 100mL 50mg / L copper-containing wastewater was 94.7%. The pseudo-second-order kinetic equation could well fit The adsorption kinetics of Cu 2+ showed that the adsorption was mainly ion exchange adsorption. The Langmuir equation could well fit the isothermal adsorption process of Cu 2+, indicating that the adsorption Mainly monolayer adsorption.