Room-temperature solid state synthesis of Co 3 O 4 /ZnO p–n heterostructure and its photocatalytic activity

2017 ◽  
Vol 28 (3) ◽  
pp. 953-963 ◽  
Author(s):  
Gasmi Mohamed Reda ◽  
Huiqing Fan ◽  
Hailin Tian
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Room Temperature ◽  
Solid State Synthesis

scholarly journals Zirconium-Doped Chromium IV Oxide Nanocomposites: Synthesis, Characterization, and Photocatalysis towards the Degradation of Organic Dyes

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 117
Author(s):  
Zahir Muhammad ◽  
Farman Ali ◽  
Muhammad Sajjad ◽  
Nisar Ali ◽  
Muhammad Bilal ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Solid State ◽  
Room Temperature ◽  
Organic Dyes ◽  
Uv Light ◽  
Heterogeneous Photocatalysis ◽  
Ft Ir ◽  
Complete Mineralization

Degradation of organic dyes and their byproducts by heterogeneous photocatalysts is an essential process, as these dyes can be potentially discharged in wastewater and threaten aquatic and xerophyte life. Therefore, their complete mineralization into nontoxic components (water and salt) is necessary through the process of heterogeneous photocatalysis. In this study, Zr/CrO2 (Zirconium-doped chromium IV oxide) nanocomposite-based photocatalysts with different compositions (1, 3, 5, 7 & 9 wt.%) were prepared by an environmentally friendly, solid-state reaction at room temperature. The as-prepared samples were calcined under air at 450 °C in a furnace for a specific period of time. The synthesis of Zr/CrO2 photocatalysts was confirmed by various techniques, including XRD, SEM, EDX, FT-IR, UV-Vis, and BET. The photocatalytic properties of all samples were tested towards the degradation of methylene blue and methyl orange organic dyes under UV light. The results revealed a concentration-dependent photocatalytic activity of photocatalysts, which increased the amount of dopant (up to 5 wt.%). However, the degradation efficiency of the catalysts decreased upon further increasing the amount of dopant due to the recombination of holes and photoexcited electrons.

Solid-state synthesis of amorphous iron(III) phosphate at room temperature and its absorption properties for Hg(II) and Ag(I) ions

2007 ◽  
Vol 61 (17) ◽  
pp. 3755-3757 ◽  
Author(s):  
Ping Yin ◽  
Yucai Hu ◽  
Yanzhi Sun ◽  
Yingxia Yang ◽  
Chunnuan Ji ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Solid State Synthesis ◽  
Absorption Properties ◽  
Amorphous Iron

Solid-state Synthesis of Aryl 2-Nitrophenyl Ureas

2003 ◽  
Vol 2003 (4) ◽  
pp. 220-221 ◽  
Author(s):  
Jing Li ◽  
Yu-lu Wang ◽  
Ting Sun
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Solid State Synthesis ◽  
First Time

A simple and efficient solid-state synthesis for aryl 2-nitrophenyl ureas at room temperature is described for the first time.

Microwave-assisted solid-state synthesis of hydroxyapatite nanorods at room temperature

2005 ◽  
Vol 40 (23) ◽  
pp. 6311-6313 ◽  
Author(s):  
Jie Ming Cao ◽  
Jie Feng ◽  
Shao Gao Deng ◽  
Xin Chang ◽  
Jun Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Solid State Synthesis ◽  
Microwave Assisted

In Situ Solid-State Synthesis of a AgNi/g-C3 N4 Nanocomposite for Enhanced Photoelectrochemical and Photocatalytic Activity

ChemSusChem ◽  
2016 ◽  
Vol 9 (19) ◽  
pp. 2816-2823 ◽  
Author(s):  
Nimai Bhandary ◽  
Aadesh P. Singh ◽  
Sandeep Kumar ◽  
Pravin P. Ingole ◽  
Gohil S. Thakur ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Solid State Synthesis

Room Temperature Solid-State Synthesis of a Conductive Polymer for Applications in Stable I2-Free Dye-Sensitized Solar Cells

ChemSusChem ◽  
2012 ◽  
Vol 5 (11) ◽  
pp. 2173-2180 ◽  
Author(s):  
Byeonggwan Kim ◽  
Jong Kwan Koh ◽  
Jeonghun Kim ◽  
Won Seok Chi ◽  
Jong Hak Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Room Temperature ◽  
Dye Sensitized Solar Cells ◽  
Conductive Polymer ◽  
Solid State Synthesis ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Synthesis of Three Layer NaxCoO2 (x=0.3, 0.5, 0.6, 0.75, 1.0) and Superconductivity in Three Layer Na0.3CoO2•1.3H2O

2004 ◽  
Vol 848 ◽  
Author(s):  
M.L. Foo ◽  
T. Klimczuk ◽  
L. Li ◽  
N.P. Ong ◽  
R.J. Cava ◽  
...  
Keyword(s):  
Solid State ◽  
Cobalt Oxide ◽  
Room Temperature ◽  
Solid State Synthesis ◽  
Stacking Sequence ◽  
Sodium Cobalt Oxide ◽  
Conventional Solid State Synthesis

ABSTRACTThe synthesis of three layer sodium cobalt oxide, NaxCoO2 (x=0.3, 0.5, 0.6, 0.75 and 1.0) is reported. For x=0.6, 0.75, and 1.0, conventional solid-state synthesis was employed. x=0.3 and 0.5 were obtained via oxidative deintercalation of sodium at room temperature. x=0.3 can be hydrated to Na0.3CoO2•1.3H2O which is superconducting with a Tc of 4.3 K. Although having the same chemical stiochiometry as the previously reported two layer superconductor, it has a different stacking sequence of CoO2 layers making it structurally distinct. Crystals of three layer NaCoO2 show triangular morphology compared to hexagonal morphology for two layer Na0.7CoO2.

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