FTIR、Raman和DFT计算表明,桥氧空位被引到Zn3V2O7(OH)2·2H2O的隧道结构中可以调节Zn2+与V-O-V键中O之间的相互作用。理论计算表明,具有8%浓度桥氧空位的ZVO具有较低的扩散能垒(0.2 eV)和较窄的带隙(1.23 eV).并表现出...
对于10%-Ce─ZnO样品,在这两种氧化物的边缘观察到丰富的缺陷(图2c),表明存在丰富的Ce─O─Zn结构。傅里叶变换红外光谱(FTIR)研究了Ce─O─Zn结构的化学成分(图2d)。以445和403 cm−1为中心的峰分别属于Zn─O和Ce─O的拉伸振动...
金属有机骨架(MOFs)是偶氮染料脱色的重要催化剂。 一种新型、简便的制备磁性Zn2(BDC)2(DABCO) MOF的方法,该方法是一种类fenton的非均相纳米催化剂,可用于降解水中的偶氮染料。 采用傅里叶变换红外光谱(FTIR)评价样品的官能团,x射线衍射(XRD)分析样品的晶体结构,氮吸附-解吸法测量样品的比表面积,场发射扫描电镜(...
FTIR confirmed the existence of Zn–O vibrational modes. UV–vis spectra used to calculate the energy bandgap by using Tauc's plot, Energy equation, Vegard's law, and Derivative method. Optical parameters such as Urbach energy, refractive index, dielectric constant, extinction coefficient and ...
采用戊二醛共价交联法制备出了聚乙烯亚胺/Fe3O4杂化磁性纳米吸附剂(PEI-Fe3O4).通过TEM,XRD,FTIR,VSM和TGA等手段表征了材料的结构和性质.以甲基橙(MO)为吸附质,系统考... 刘旸,赵雪松,潘学军,... - 《环境工程学报》 被引量: 24发表: 2016年
采用戊二醛共价交联法制备出了聚乙烯亚胺/Fe3O4杂化磁性纳米吸附剂(PEI-Fe3O4).通过TEM,XRD,FTIR,VSM和TGA等手段表征了材料的结构和性质.以甲基橙(MO)为吸附质,系统考... 刘旸,赵雪松,潘学军,... - 《环境工程学报》 被引量: 24发表: 2016年
diffraction(XRD),Fouriertransforminfraredspectroscopy(FTIR)andthermogravimetricanalysis(TG) respectively.TheeffectofpH.initialconcentrationofZn andtemperatureonadsorptionofZn wasalso studiedbyatomadsorptionspectroscopy(AAS)andfinallytheadsorptionofvariousheavymetalionswas ...
(FTIR) for their crystallinity, surface morphology, elemental composition, optical direct band gap energy, and functional groups respectively. The photocatalytic activities of nanocomposites (Zn50Mg50O and G-Zn50Mg50O) were studied under visible light for the decomposition of RhB and MB dye molecules...
XRD, FTIR, SEM, and TGA were used to characterize the structure and properties of the ZIF-8 crystals. Spinel Co3O4 was loaded by hydrothermal method on the surface of N-doped porous carbon formed by carbonization of ZIF-8 at 900 ℃(Co3O4@C-N). At the same time, commercial ...
本工作以一种廉价且简易的方法,以FeCl2·4H2O为原料,在碱性条件下利用歧化反应原理制备了一种具有裂隙结构的磁性片状nZVI-Fe3O4,利用场发射扫描电子显微镜(FESEM)、能谱分析(EDS)、高分辨率透射电子显微镜(HRTEM)、X射线衍射(...