Low-field magnetic properties, electrical resistance and Mossbauer spectra of YBa/sub 2/(Cu/sub 1-x/Fe/sub x/)/sub 3/O/sub 7-/delta// In this paper, the authors present the results of magnetic, resistive and gamma-resonance studies on polycrystalline samples of a rhombic and tetragonal ...
(PS)for the degradation of organic contaminant.While using tetracycline hydrochloride(TC)as pollutant surrogate,the effects of initial p H,PS and catalyst concentration on the degradation rate are systematically studied.Under the optimized reaction condition,CCCN/PS is able to give 99%degradation ...
On the other hand, the crystalline structure of the as-prepared FFNPs exhibited Fe0/FeOOH/Fe2O3/Fe3O4as shown in Fig.1a. The formed hexagonal Fe2O3and cubic Fe3O4nanostructures within the designed nanocomposite were indexed by (JCPDS file no. 01-89-0596] and (JCPDS file no. 01-07...
通过柠檬酸辅助溶胶-凝胶法制备了一种磁性复合材料Cu Fe_(2)O_(4)/硅藻土(CFD).通过SEM,XRD,FTIR,XPS表征了其微观形貌结构和元素价态,考察了不同氧化体系,CFD质量浓度,过一硫酸盐(PMS)质量浓度,溶液初始pH,反应温度,阴离子种类对CFD降解酸性橙7(AO7)的影响,探讨了CFD降解AO7的机制.结果表明,CFD上的球形颗...
Self-propagating high-temperature synthesis of ferrites MFe2O4 (M = Mg, Ba, Co, Ni, Cu, Zn); reactions in an external magnetic field The inversion parameter observed for MgFe 2O 4 was also influenced by the applied field. All materials were characterised by X-ray powder diffraction (.....
解三:x=0.了mol,消耗铁的质量为m(Fe)=0.了mol×z二g/mol=11.了g,此时剩余固体的质量为1人.了g-11.了g=了.0g,证明假设成立;说明铜并没有和FeCl人溶液反应,混合粉末中铁的质量大于或等于11.了g,故答案为:≥11.了;(4)C七rO4分解三到C七了O、rO人、rO了、O了,根据质量守恒定律可知,混合气体的...
的AlCuFeCr准晶后,我们通过与AlCuFe准晶相同的工艺将它加入到ZL101合金中,结果发现制备的复合材料的微观组织和相组成基本没有发生变化.力学性能相较于纯的ZL101而言... 王一帆 - 中北大学 被引量: 0发表: 0年 激光熔覆制备Al-Si-Cu-Fe准晶态合金涂层的研究 本文报道了在氮气气氛下 ,利用激光熔覆Al50 Si15...
通过反应前后XPS价态分析,并结合Cu0,Cu_2O和CuO作为参照催化剂的反应结果,我们发现表面氧化的Cu_2O是热催化OHA的活性物种,而金属铜纳米颗粒(CuN Ps)是光催化OHA的活性位点.结合UV-Vis光谱结果及不同强度和波长可见光对CuFe_2O_4-SG-250和Cu/TiO_2光催化性能影响的探究,我们认为CuNPs的局域表面等离子体共振(...
Towards this objective, a low-cost, one-step and combustion route mediated reduced graphene oxide (rGO)-CuFe2O4nanocomposite was exploited as a high鈥損erformance NH3gas sensor by combining the excellent electrical properties of rGO and sensing capabilities of CuFe2O4. This nanocomposite was ...
Spinel CuFe2O4NH3 gasGas sensingNanocompositeSensitive and selective detection of NH 3 at room temperature is required for proper environmental monitoring and also to avoid any health hazards in the industrial areas. Towards this objective, a low-cost, one-step and combustion route mediated reduced...