Boron(B) is a key element for citrus production, especially in tropical regions, where the nutrient availability is comm......

采用化学共沉淀法制备磁基体(Fe3O4),煅烧使其转化为γ-Fe2O3.溶胶-凝胶法成功得到易于固液分离回收的磁载TiO2光催化剂TiO2/SiO2/......