磁性 NiFeO/MWCNTs 功能化纤维素生物吸附剂，具有增强的吸附性能和快速分离性能。
Magnetic NiFeO/MWCNTs functionalized cellulose bioadsorbent with enhanced adsorption property and rapid separation.
机构信息
College of Life Science, Taizhou University, Taizhou, 318000, Zhejiang, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang, 318000, PR China.
College of Life Science, Taizhou University, Taizhou, 318000, Zhejiang, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang, 318000, PR China.
出版信息
Carbohydr Polym. 2021 Jan 15;252:117158. doi: 10.1016/j.carbpol.2020.117158. Epub 2020 Oct 2.
Magnetic NiFeO nanoparticles and multi-walled carbon nanotubes functionalized cellulose composite (m-NiFeO/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-NiFeO/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-NiFeO/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 for CR. The m-NiFeO/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.
磁性 NiFeO 纳米粒子和多壁碳纳米管功能化纤维素复合材料（m-NiFeO/MWCNTs@cellulose）作为一种磁性生物吸附剂被制备出来，并用于有效地从水溶液中去除刚果红（CR）。通过 XRD、TGA、FT-IR、VSM、SEM 和 TEM 对制备的 m-NiFeO/MWCNTs@cellulose 的化学和物理性质进行了表征。进行了批量实验以研究吸附容量和机制。研究了不同吸附参数，如初始 CR 浓度、吸附剂用量和温度的影响。结果表明，m-NiFeO/MWCNTs@cellulose 对水溶液中的 CR 具有高吸附容量。获得的实验数据与准二级方程拟合良好，并遵循 Langmuir 等温模型，最大吸附容量为 95.70mg g 对 CR。具有快速磁分离和高吸附容量的 m-NiFeO/MWCNTs@cellulose 可以成为一种有前途和可重复使用的工程生物材料，用于实际废水的净化和处理。
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