Herein,binary and ternary MOF/carbon based composites(MOF/Carbon nitride/Graphene oxide)(novel binary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4))(MOF/Carbon nitride)and ternary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4)/GO)(MOF/Carbon nitr...Herein,binary and ternary MOF/carbon based composites(MOF/Carbon nitride/Graphene oxide)(novel binary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4))(MOF/Carbon nitride)and ternary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4)/GO)(MOF/Carbon nitride/Graphene oxide)composites)were synthesized and used as photocatalysts for the elimination of Direct Red 23(D-Red23)and Tetracycline Hydrochloride(TC-H).NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4)/GO(MILB/g/GO)ternary composites with three different amounts of GO including 3,7,and 11 wt%were synthesized and denoted as MILB/g/(3%)GO,MILB/g/(7%)GO,and MILB/g/(11%)GO.g-C_(3)N_(4)and GO(with three different amounts 3,7,and 11 wt%)were incorporated to synthesize MILB/g/(3%)GO,MILB/g/(7%)GO and MILB/g/(11%)GO ternary composites.Several analyses were used to characterize the materials.The MILB/g/(3%)GO demonstrated the highest pollutant degradation efficiency.The degradation rate of dye and Tetracycline after 70 min of light radiation using MILB/g/(3%)GO in a photo-Fenton-like reaction was about 99%and 96%,respectively.The creation of a heterojunction structure using g-C_(3)N_(4),and the simultaneous incorporation of the optimum amount of GO led to a remarkable amelioration in photocatalytic properties and the extraordinary performance of MILB/g/(3%)GO in the pollutants degradation process.展开更多
研究了微量合金元素 Nb 的添加对 Fe3B/Nd2Fe14B型纳米复合永磁体微观结构与磁性能的影响规律。结果表明,添加Nb元素可以稳定非晶相,阻碍Fe3B粒子的结晶动力学。Nd5.5Fe70.0Co5Cu0.5Nb0.5B18.5非晶合金在640℃退火处理 30min可获得最佳...研究了微量合金元素 Nb 的添加对 Fe3B/Nd2Fe14B型纳米复合永磁体微观结构与磁性能的影响规律。结果表明,添加Nb元素可以稳定非晶相,阻碍Fe3B粒子的结晶动力学。Nd5.5Fe70.0Co5Cu0.5Nb0.5B18.5非晶合金在640℃退火处理 30min可获得最佳磁性能:Br=1.05T,jHc=367kA/m,(BH)max=80.2kJ/m3。Nb与Cu的复合添加对Fe3B晶粒的细化效果更显著;Nb元素的添加可以提高合金的磁性能,但添加量必须适中。展开更多
采用铜模吸铸制备了厚度为0.8 mm,成分为Nd9Fe81-x-yTi4C2BxNby(x=11,13,15;y=0,4)的Nd2Fe14B/Fe3B型纳米复合永磁合金块体样品,研究了添加Nb对合金铸态组织及其晶化行为的影响,并测试了其磁性能。结果表明:在合金中添加4%(原子分数)Nb...采用铜模吸铸制备了厚度为0.8 mm,成分为Nd9Fe81-x-yTi4C2BxNby(x=11,13,15;y=0,4)的Nd2Fe14B/Fe3B型纳米复合永磁合金块体样品,研究了添加Nb对合金铸态组织及其晶化行为的影响,并测试了其磁性能。结果表明:在合金中添加4%(原子分数)Nb元素,不仅能抑制吸铸样品表面Nd2Fe23B3软磁性相、Nd1.1Fe4B4非磁性相和未知相的形成,导致Nd2Fe14B,Fe3B和α-Fe相的相对量增加,而且促使样品内部在非晶基体上形成了少量的Nd2Fe14B和α-Fe,Fe3B纳米晶。添加了Nb的合金吸铸样品表现出一定的硬磁性,其中Nd9Fe66Ti4C2B15Nb4吸铸样品具有最高的矫顽力(Hci=116.66 k A·m-1);添加4%(原子分数)Nb使得合金在晶化过程中由原来的异相同温一步晶化转变为两步晶化,且初始晶化温度Tx均明显降低,两个放热峰的ΔTpx均增大。展开更多
基金This manuscript is extracted from project(981179017)funded by Institute for Color Science and Technology.
文摘Herein,binary and ternary MOF/carbon based composites(MOF/Carbon nitride/Graphene oxide)(novel binary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4))(MOF/Carbon nitride)and ternary(NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4)/GO)(MOF/Carbon nitride/Graphene oxide)composites)were synthesized and used as photocatalysts for the elimination of Direct Red 23(D-Red23)and Tetracycline Hydrochloride(TC-H).NH_(2)-MIL-88B(Fe)/g-C_(3)N_(4)/GO(MILB/g/GO)ternary composites with three different amounts of GO including 3,7,and 11 wt%were synthesized and denoted as MILB/g/(3%)GO,MILB/g/(7%)GO,and MILB/g/(11%)GO.g-C_(3)N_(4)and GO(with three different amounts 3,7,and 11 wt%)were incorporated to synthesize MILB/g/(3%)GO,MILB/g/(7%)GO and MILB/g/(11%)GO ternary composites.Several analyses were used to characterize the materials.The MILB/g/(3%)GO demonstrated the highest pollutant degradation efficiency.The degradation rate of dye and Tetracycline after 70 min of light radiation using MILB/g/(3%)GO in a photo-Fenton-like reaction was about 99%and 96%,respectively.The creation of a heterojunction structure using g-C_(3)N_(4),and the simultaneous incorporation of the optimum amount of GO led to a remarkable amelioration in photocatalytic properties and the extraordinary performance of MILB/g/(3%)GO in the pollutants degradation process.
文摘研究了微量合金元素 Nb 的添加对 Fe3B/Nd2Fe14B型纳米复合永磁体微观结构与磁性能的影响规律。结果表明,添加Nb元素可以稳定非晶相,阻碍Fe3B粒子的结晶动力学。Nd5.5Fe70.0Co5Cu0.5Nb0.5B18.5非晶合金在640℃退火处理 30min可获得最佳磁性能:Br=1.05T,jHc=367kA/m,(BH)max=80.2kJ/m3。Nb与Cu的复合添加对Fe3B晶粒的细化效果更显著;Nb元素的添加可以提高合金的磁性能,但添加量必须适中。
文摘采用铜模吸铸制备了厚度为0.8 mm,成分为Nd9Fe81-x-yTi4C2BxNby(x=11,13,15;y=0,4)的Nd2Fe14B/Fe3B型纳米复合永磁合金块体样品,研究了添加Nb对合金铸态组织及其晶化行为的影响,并测试了其磁性能。结果表明:在合金中添加4%(原子分数)Nb元素,不仅能抑制吸铸样品表面Nd2Fe23B3软磁性相、Nd1.1Fe4B4非磁性相和未知相的形成,导致Nd2Fe14B,Fe3B和α-Fe相的相对量增加,而且促使样品内部在非晶基体上形成了少量的Nd2Fe14B和α-Fe,Fe3B纳米晶。添加了Nb的合金吸铸样品表现出一定的硬磁性,其中Nd9Fe66Ti4C2B15Nb4吸铸样品具有最高的矫顽力(Hci=116.66 k A·m-1);添加4%(原子分数)Nb使得合金在晶化过程中由原来的异相同温一步晶化转变为两步晶化,且初始晶化温度Tx均明显降低,两个放热峰的ΔTpx均增大。
