Details

Autor(en) / Beteiligte

• Chen, Xiaojiong
• Wang, Panfeng
• Xu, Jingcai
• Han, Yanbing
• Jin, Hongxiao
• Jin, Dingfeng
• Peng, Xiaoling
• Hong, Bo
• Li, Jing
• Yang, Yanting
• Ge, Hongliang
• Wang, Xinqing

Titel

Magnetic separation and adsorptive performance for methylene blue of mesoporous NiFe2O4/SBA-15 nanocomposites

Ist Teil von

• Advanced powder technology : the international journal of the Society of Powder Technology, Japan, 2017-09, Vol.28 (9), p.2087-2093

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• [Display omitted] •NiFe2O4 nanoparticles with spinel phase existed in the mesopores of SBA-15.•Saturation magnetization increased with the NiFe2O4 content, while the surface area decreased.•Micropores resulting from NiFe2O4 nanoparticles were important for methylene blue adsorption.•Almost 100% methylene blue could be adsorbed in 60min with the optimized nanocomposites and separated easily. Magnetic NiFe2O4/SBA-15 nanocomposites were synthesized by a facile impregnation method, and NiFe2O4 nanoparticles presented spinel phase structure and existed in the mesopores of SBA-15. Partial mesopores were blocked by NiFe2O4 nanoparticles and micropores formed, which the capillarity of micropores played a decisive role for methylene blue (MB) adsorption. The saturation magnetization increased from 2.34emug−1 to 10.03emug−1 with the NiFe2O4 content, while the specific surface area decreased from 552.18m2g−1 to 260.40m2g−1 and pore volume decreased from 1.13cm3g−1 to 0.49cm3g−1. MB adsorption could be improved by optimizing the NiFe2O4 content of the nanocomposites. MB could be adsorbed completely in 60min with the optimum nanocomposites and could be separated easily from water by magnetic separation technique.