【作者】 何斌； 苏志；

【Author】 Bin He;Zhi Su;School of Chemical Engineering, Nanjing University of Science and Technology;School of Chemistry and Materials Science, Nanjing Normal University;

【机构】 南京理工大学化工学院； 南京师范大学化学与材料科学学院；

【摘要】 我们报道了一种简单的方法来合成尺寸均匀和结构稳定的多孔Cu掺杂BiVO₄ （Cu-BVO）纳米管。首先,通过电纺丝技术制备了表面光滑的聚丙烯腈（PAN）纳米纤维模板,再通过溶剂热的方法将Cu-BVO纳米颗粒包覆在PAN的表面形成核壳结构,最后在空气中煅烧形成多孔的Cu-BVO纳米管。实验结果揭示当Cu掺杂的最佳百分比为5.0%时,多孔管状催化剂在可见光下观察到平均产氧速率为350.2μmol h^-1 g^-1,比单纯的BiVO₄性能高了大约2.4倍左右。更多还原

【Abstract】 Herein,a facile route to fabricate one-dimensional （1D） porous Cu²⁺-doped BiVO₄ （Cu-BVO）nanotubes was reported,which has uniform size distribution and high structural stability.First,an electrospinning technique was developed to prepare the sacrificial template of polyacrylonitrile （PAN）nanofibers with a smooth surface.Second,a conformal layer of Cu-BVO nanoparticles was coated onto the PAN template through a solvothermal method to obtain the solid core-shell precursor,which was finally converted into the product of porous Cu-BVO nanotubes with thermal treatment.As a result,the porous nanotube photocatalyst with an optimal Cu²⁺doping of 5.0%exhibits an average O₂ evolution rate of 350.2μmol h^-1 g^-1,about 2.4 times more than that of pristine BVO nanotubes.更多还原