【摘要】 以硝酸镧和葡萄糖酸亚铁为金属源，乙二胺为结构导向剂，尿素为沉淀剂，水为溶剂，采用水热法成功合成LaFeO₃多孔空心球纳米结构材料。通过SEM、EDS、TEM、XRD、N₂吸附-脱附和XPS测试对合成样品的表面形貌、元素组成和晶体结构进行表征。结果表明，制备的LaFeO₃样品具有球形空心结构，直径范围为1～3μm。LaFeO₃的比表面积为16.884 m²/g，孔径约为22 nm。探讨La Fe O₃纳米材料在水污染环境修复中的应用，特别是磷离子。当吸附剂用量为1.0 g/L，磷酸盐溶液浓度为10 mg/L，磷酸盐去除效率最佳，去除效率为91.17%。更多还原

【Abstract】 LaFeO₃ porous hollow sphere nanostructure materials were successfully synthesized by hydrothermal method, lanthanum nitrate and ferrous gluconate acted as metal source, ethylenediamine as a structure directing agent, carbamide as precipitant, and water as solvent. The characterization methods that used include SEM, EDS, TEM, XRD, nitrogen adsorption-desorption analysis and XPS. These results show that the obtained LaFeO₃ have sphere shape, hollow structure, the diameter of 1-3 μm. Moreover, LaFeO₃ possess specific surface area（16.884 m²/g） and porous size distribution（22 nm）. This study explores the use of LaFeO₃ nanostructure materials, for environmental remediation of water pollution, specifically phosphorus ion. The adsorbent dosages of 1.0 g/L, and the phosphate solution with 10 mg/L, the phosphate removal efficiency is best and the removal rate is up to 91.17%.更多还原