In this work,a one step solvothermal method was used to synthesize uniform anisotropic hexagonal and cylindrical hematite nanoplates in the presence of methanol and ethylene di-amine.The phase and morphology of the sa...In this work,a one step solvothermal method was used to synthesize uniform anisotropic hexagonal and cylindrical hematite nanoplates in the presence of methanol and ethylene di-amine.The phase and morphology of the samples were confirmed by X-ray diffraction(XRD)and electron microscopy.Photocatalytic degradation of methylene blue(MB)was carried out using two different hematite nanoplates to compare their catalytic performance.A systematic study of different parameters affecting the photodegradation of MB was performed.Hexagonal nanoplates exposing(110),(102)and(104)facets exhibit enhanced photocatalytic activity compared to the cylindrical nanoplates that expose only(110)and(102)facets,confirming that the high catalytic activity of the hexagonal nanoplates is attributed to the exposure of more catalytically active facets.展开更多
基金supported by the NSFC(51125001,51172005)Beijing Natural Science Foundation(2122022)+2 种基金NSFC-RGC Joint Research Scheme(51361165201)Doctoral Program of the Ministry of Education of China(20120001110078)the Interdisciplinary Project of Beijing New Star Plan of Science and Technology.
文摘In this work,a one step solvothermal method was used to synthesize uniform anisotropic hexagonal and cylindrical hematite nanoplates in the presence of methanol and ethylene di-amine.The phase and morphology of the samples were confirmed by X-ray diffraction(XRD)and electron microscopy.Photocatalytic degradation of methylene blue(MB)was carried out using two different hematite nanoplates to compare their catalytic performance.A systematic study of different parameters affecting the photodegradation of MB was performed.Hexagonal nanoplates exposing(110),(102)and(104)facets exhibit enhanced photocatalytic activity compared to the cylindrical nanoplates that expose only(110)and(102)facets,confirming that the high catalytic activity of the hexagonal nanoplates is attributed to the exposure of more catalytically active facets.
