Assembly of alpha-Fe2O3 Rubik's nanostructure with adsorptive property

作者：Tian, Zhengshan^*; He, Guoxu; Peng, Qinlong; Cao, Kesheng; Bai, Suzhen; Li, Zhaohui; Li, Jitao^*

来源：Materials Research Express, 2019, 6(2): 025011.

DOI：10.1088/2053-1591/aaec20

• alpha-Fe2O3 nanocrystal
• Rubik's nanostructure
• adsorbent

The alpha-Fe2O3 nanocrystals with a size of about 60 nm were prepared by using FeCl3 andNaOHas precursors through a facile and green three-step hydrothermal reaction process. Then, using the resulting alpha-Fe2O3 nanocrystals as basic materials, the alpha-Fe2O3 Rubik's nanostructures were fabricated by a self-assembly method under ultrasonic condition, due to the platelet-shaped structure and magnetic property of the alpha-Fe2O3 nanocrystals. Interestingly, the resulting Rubik's nanostructures with a diameter of 300-600 nm exhibit typical room-temperature ferromagnetism, and could serve as an adsorbent to quickly remove the trace-level (50 mg L-1) Pb2+ from water. It provides options for developing new preparation technology of Fe2O3-based nanomaterials for many applications.

• 出版日期2019-2
• 单位江苏科技大学; 平顶山学院; 周口师范学院