作者：Ru Jiang, Huayue Zhu, Yongqian Fu, Enmin Zong, Shengtao Jiang, JianqZhu, Yingying Zhbing Li, Jianqia
关键字：cellulose
论文来源：期刊
具体来源：Carbohydrate Polymers
发表时间：2020年

Magnetic NiFe2O4

nanoparticles and multi-walled carbon nanotubes functionalized cellulose

composite (m-NiFe2O4/MWCNTs@cellulose) as a magnetic bioadsorbent

was prepared and used for effectively removing Congo Red (CR) from aqueous

solution. The chemical and physical properties of the prepared m-NiFe2O4/MWCNTs@cellulose

were characterized by XRD, TGA, FT-IR, VSM, SEM and TEM. Batch experiments were

carried out to investigate the adsorption capacity and mechanisms. Effects of

different adsorption parameters such as initial CR concentration, adsorbent

dosage and temperature were studied. Results demonstrated that m-NiFe2O4/MWCNTs@cellulose

had high adsorption capacity for CR from aqueous solution. The obtained

experimental data fitted well with the pseudo-second-order equation and

followed the Langmuir isotherm model with a maximum adsorption capacity of

95.70 mg g?1 for CR. The m-NiFe2O4/MWCNTs@cellulose

with rapid magnetic separation and high adsorption capacity can be a promising

and recyclable engineering biomaterials for purification and treatment of

practical wastewater.