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| 1 | Synthesis of M(M=Co^2+,Co^2+/Ni^2+)-doped FeS2 Nanospheres with Enhanced Visible-light-induced Photocatalytic Activity显示文摘Nano-spherical Co^(2+)-doped FeS_2 was synthesized through a simple solvothermal method. The products were investigated using XRD, FE-SEM, BET, ICP, EDS, TEM, HRTEM, XPS, and UV-vis spectroscopy. The results indicated that Co^(2+) ion could change the particle nucleation process and inhibited the particle growth of FeS_2. In addition, when the content of doped Co^(2+) was 15%, the degradation efficiency of methylene blue(MB) achieved 60.72% after 210 min irradiation, which increased by 52.01% than that of the undoped FeS_2. Moreover, comparison experiments also demonstrated that the M(M=Co^(2+), Co^(2+)/Ni^(2+))-doped FeS_2 photocatalytic activity efficiency sequence was Co^(2+) > Ni^(2+)>Co^(2+)/Ni^(2+). This is ascribed to the fact that the Co^(2+) doping could induce the absorption edge shifting into the visible-light region and increased the surface area of the samples. The effect mechanisms of M-doping on the band gap and the photocatalytic activity of FeS_2 were also discussed. | 王燕舞 张学洪 JI Yuchun ZHENG Guoyuan 王吉林 LONG Fei | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，4： | 0 |
| 2 | CZTS/g-C_(3)N_(4) Ⅰ型异质结中可见光驱动催化活性的提高显示文摘为了提高Cu_(2)ZnSnS_(4)(CZTS)光催化降解罗丹明B(RhB)的速率,本文采用水热法成功制备了CZTS/g-C_(3)N_(4)复合结构的Ⅰ型异质结并首次将CZTS/g-C_(3)N_(4)应用于光催化降解有色染料RhB。结果表明,g-C_(3)N_(4)附着在花状CZTS表面,两者形成Ⅰ型异质结。CZTS作为g-C_(3)N_(4)的电子陷阱,提高了载流子的分离效率。光催化降解RhB的结果表明,CZTS/g-C_(3)N_(4)复合结构可以提高RhB的光催化降解效果。RhB的最佳光催化效率在60min内达到98.63%。 | 李玉芳 侯张晨 刘劲松 施政 沈鸿烈 | 2023 | Transactions of Nanjing University of Aeronautics and Astronautics2023，40，3： | 0 |
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