Preparation and characterization of AgCl–Ag2S nanocomposites via a simple co-precipitation route: utilizing as a photocatalyst for methyl orange degradation

2015 ◽  
Vol 27 (2) ◽  
pp. 1622-1628 ◽  
Author(s):  
Mohammad Ebadi ◽  
Zabihullah Zarghami ◽  
Majid Aliabadi
2020 ◽  
Vol 24 (3) ◽  
pp. 545-555
Author(s):  
Yufu Pan ◽  
Yanfang Luo ◽  
Chengcheng Li ◽  
Rongjing Wang ◽  
Yihao Yuan ◽  
...  

2013 ◽  
Vol 341-342 ◽  
pp. 157-161
Author(s):  
Yang Lin Liu ◽  
Xue Chen Duan ◽  
Yan Yan Liu

The surface chemistry method is used to produce Zinc Aluminium oxide (ZAO) particle surface which modifying tubular TiO2 and can produce nanotubes composite material of ZAO/TiO2. The influence of different atom proportionings, aluminum doping amount as well as the contents of Zn and other conditions on the production of composite material's surface morphology, microstructure and photocatalytic performance were Study with XRDSEMTEM and other characterization means. The experiments indicated when Zn:Ti=1:4(a.t.),it has the best catalytic effect and the methyl orange degradation rate can reach 95% at 50min.


NANO ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. 1950125 ◽  
Author(s):  
G. M. El-Subruiti ◽  
A. S. Eltaweil ◽  
S. A. Sallam

Metal-ferrite/maghemite nanocomposites (NiFe2O4/***[Formula: see text]-Fe2O3 and CoFe2O4/[Formula: see text]-Fe2O[Formula: see text] were synthesized via doping maghemite with metal salt (NiCl2 or CoCl[Formula: see text] followed by reduction of metal ions using NaBH4. The synthesized metal-ferrite/maghemite nanocomposites were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), Fourier transform infrared (FTIR) and the amounts of the dopant-metal (Ni/Co) were determined using ICP-OES technique. Results showed that this synthetic route produced nanocomposites with highly active ferrite phases MFe2O4. The synthesized nanocomposites exhibited exceptional catalytic activities for the reduction of 4-nitrophenol and 2-nitroaniline as well as the catalytic degradation of methyl orange. Specific activity parameter of NiFe2O4/[Formula: see text]-Fe2O3 and CoFe2O4/[Formula: see text]-Fe2O3 toward reduction of 4-NP reached 993.9 and 929.8[Formula: see text]s[Formula: see text][Formula: see text]g[Formula: see text], respectively. These high values of specific activities are higher than most reported metal-ferrite composites prepared via traditional co-precipitation methods. Besides, strong magnetic properties of the prepared metal-ferrite/maghemites facilitates easy separation process for several reuses.


2018 ◽  
Vol 14 (2) ◽  
pp. 221-234
Author(s):  
Ahmed Namah Mohamed ◽  
◽  
Jafer Fahdel Odah ◽  
Haider Tawfiq Naeem

2020 ◽  
Vol 3 (1) ◽  
pp. 30-33
Author(s):  
Muthulakshmi M ◽  
Madhumitha G

Nanotechnology is a field of applied science focused on design, synthesis and characterization of nanomaterials. The nickel and magnesium have improved their applications in transparent electrodes and nano electronics. In addition, magnesium oxide has moisture resistance and high melting point properties. In the present work has been carried out in the development of green crystalline powder of nickel doped magnesium oxide nanoparticles by Co-precipitation method, from the mixture of nickel chloride and magnesium chloride with KOH as solvent. From the XRD results, crystalline size of the particle can be observed. Spherical structure of Ni doped MgO nanoparticles were indicated by SEM results and powdered composition of samples were obtained from FTIR. EDAX represents the peak composition of the nanoparticle. The above analytical techniques have confirmed that the Ni doped MgO nanoparticles obtained from the mixture of NiCl2 and MgCl2.


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