煅烧制备Co3O4/g-C3N4复合催化剂.用IR,XRD,TEM,UV-Vis,电化学对复合材料分析结果表明,Co3O4均匀地附着在g-C3N4的表面,形成异质结.阻抗曲线表面异质结能够促进空穴和光生电子的转移和分离.在可见光照射下,当15% Co3O4/g-C3N4复合材料做为光催化剂,其光催化降解甲基橙的降解率可达90%,并拟合符合动力学一...
根据最近的报道,g-C3N4中的C和N原子是通过共价键结合的,类似于苯环的六边形蜂窝结构。环与N原子相连,通过氢键层层叠加形成块状结构,使g-C3N4具有稳定的物理化学性质。同时,g-C3N4成本低、制备工艺简单、无毒、带隙合适等诸多优点,使g-C3N4成为太阳能光催化技术发展中很有前途的材料。而g-C3N4作为单一光催化剂,由于...
采用化学沉淀法制备Co3O4/g-C3N4复合材料,通过X射线衍射(XRD)、红外光谱(FT-IR)、透射电子显微镜(TEM)对复合材料的结构、形貌进行表征.结果表明,直径约250nm的棒状Co3O4均匀分散在g-C3N4表面.利用差热分析(DTA)和热失重(TG)研究Co3O4/g-C3N4复合材料对高氯酸铵热分解的影响.相比于单一的g-C3N4,经过Co304...
g-C3N4, the two-dimensional layered g-C3N4could effectively prevent Co3O4agglomeration by homogeneously dispersing ZIF-67 derivates on its surface during calcination [27]. To our knowledge, there is no report about Co-MOF or its derivate coupling with g-C3N4used for photocatalytic H2O2production...
光催化罗丹明B为提高石墨相氮化碳(g-C3N4)的光催化性能;采用3D花状ZIF-Co与g-C3N4混合热处理的方法制备了3D花状Co3O4/g-C3N4复合光催化剂;并将其用于光催化降解罗丹明B模拟染料废水;结果表明:当ZIF-Co与g-C3N4的质量比为5%时;制备的Co3O4/g-C3N4的光催化性能最佳;在可见光下照射30min;其对罗丹明B...
In the Co3O4-BiVO4/g-C3N4 ternary hybrid system, the bulk Co3O4 particles were uniformly dispersed on the coral-like BiVO4 nanosheet, which not only enhanced to increase the response range and absorption to visible light, also contributed to suppress the recombination of photogenerated electron...
Co3O4g-C3N4PhotocatalysisH-2 ProductionGlycerolIn this paper, we introduce an active photocatalyst for hydrogen generation from aqueous glycerol solution on nanoheterojunctions of graphitic carbon nitride (g-C 3 N 4 ) and Co 3 O 4 at various Co 3 O 4 loading (14 wt.%). The Co 3 O 4...
Co3O4G-C3N4Specific capacitanceCo3O4 has been extensively studied as a potential electrode material for supercapacitors. However, it has some limitations such as low conductivity and ion diffusion that have hindered its widespread application. To overcome the low electron transport efficiency of Co3...
Optical properties were examined using UV鈥搗isible spectroscopy, revealing a maximum absorption edge at 650 nm corresponding to a band gap of 1.31 eV for Co3O4/Cg-C3N4 resulting in enhanced light absorption. Among the three fabricated electrodes, Co3O4/Cg-C3N4 exhibited a significantly lower...
制备的CoO/Co3O4/gC3N4复合催化剂中,CoO可加速Co2+和Co3+之间电子的产生,提高过硫酸氢钾产生SO4·等氧化活性物质的效率,加速高级氧化反应的进行;gC3N4也可活化过硫酸氢钾产生SO4·,同时也是CoO/Co3O4的载体,可以抑制Co的溶出.将CoO/Co3O4/gC3N4复合催化剂和过硫酸氢钾体系用于降解废水中新污染物时,对乙酰氨基...