不同因素对红花檵木叶粉末吸附孔雀石绿的影响

以红花檵木叶粉末为吸附剂，探究吸附剂颗粒大小、染料初始pH值、染料初始质量浓度、吸附剂剂量、离子强度、不同金属离子等主要因素对孔雀石绿吸附的影响.实验结果表明，颗粒为80目、初始pH值6.0、染料初始质量浓度为80 mg/L、吸附剂量为50 mg时，吸附效果明显.离子强度为1 mol/L时，吸附效果最好；金属离子中以钠离子对染料吸附的影响最大.同时，对实验数据进行动力学模型拟合,结果表明吸附过程符合准二阶动力学模型.总的来说，红花檵木叶粉剂对孔雀石绿染料的吸附为化学吸附.

Effect of Different Factors on Adsorption of Malachite Green by Loropetalum Chinense var. Rubrum

An experiment has been carried out on the effect of different factors on the absorption of malachite green by Loropetalum chinense var. rubrum leaf powder,including absorbent powder particle size,pH value,initialconcentration of malachite green,adsorbent biomass,ionic strength and metal ions.The results showed that the adsorption effect was the best with the blade powder particles of 80 mesh,the initial pH of 6.0,the initial dye concentration of 80 mg/L and the adsorption dose of 50 mg.Taking NaNO3 as an example,when the ionic strength was 1 mol/L,the adsorption rate was the highest,with the sodium ion having the greatest effect.At the same time,the experimental data have been fitted to the adsorption kinetics model.The fitting results showed that the adsorption process of this experiment was consistent with the quasi-second-order kinetics equation.It is concluded that the adsorption of malachite green by L. chinense var. rubrum was of chemical adsorption.