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Structural characterization and photocatalytic properties of hydrothermally synthesized Ni<sup>2+</sup>-TiO<sub>2</sub> nanoparticles for dye degradation under direct sunlight

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Title Statement Structural characterization and photocatalytic properties of hydrothermally synthesized Ni<sup>2+</sup>-TiO<sub>2</sub> nanoparticles for dye degradation under direct sunlight
 
Added Entry - Uncontrolled Name Sabale, Sandip R.; Jaysngpur College, Jaysingpur
Kamble, Ravi ; Department of Physics, Jaysingpur College, Jaysingpur 416 101, India
Chikode, Prashant ; Department of Physics, Jaysingpur College, Jaysingpur 416 101, India
Puri, Vijaya ; Department of Physics, Shivaji University, Kolhapur 416 004, India
Mahajan, Smita ; Department of Physics, Jaysingpur College, Jaysingpur 416 101, India
NA
 
Uncontrolled Index Term Synthesis and structural inorganic chemistry; catalysis
Photocatalytic activity, Nanoparticles, Hydrothermal synthesis, Dye degradation, Degradation, Nickel, Titania, Malachite green
 
Summary, etc. <p style="text-align: justify;">A<strong> </strong>Ni<sup>2+</sup>-TiO<sub>2</sub> photocatalyst, efficient and highly active in sunlight has been prepared by a simple hydrothermal method using titanium isopropoxide (TTIP) precursor. The synthesized nanoparticles (NPs) have been analysed to determine its structural, optical, morphological and compositional properties using X-ray diffraction, Raman, UV-DRS, photoluminescence, XPS, TEM and EDS. The EDS micrograph confirms the existence of Ni<sup>2+</sup> atoms (0.65, 1.32 and 1.60 wt.%) in the TiO<sub>2</sub> matrix. The average particle size obtained from TEM is 8-11 nm and is in good agreement with XRD results. Raman bands at 641.44 cm<sup>-1</sup>, 517.42 cm<sup>-1</sup> and 398.43 cm<sup>-1</sup> further confirm pure phase anatase in all samples. XPS shows the substitution of Ti<sup>4+</sup> ions by Ni<sup>2+</sup> ions in the TiO<sub>2</sub> host lattice. The photocatalytic activity of these nanoparticles have been studied using malachite green dye under UV light, visible light and direct sunlight. The crystallite size and band gap decreases with increase in Ni<sup>2+ </sup>concentration which increase its catalytic activity under sunlight. The photocatalyst, Ni<sup>2+</sup>-TiO<sub>2</sub> (1.60 wt.%), shows excellent photocatalytic activity in the visible and direct sunlight and hence it is a promising for environmental friendly photocatalytic applications.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-11-02 10:48:11
 
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http://op.niscair.res.in/index.php/IJCA/article/view/15495
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 5 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/15495/46342
http://op.niscair.res.in/index.php/IJCA/article/download/15495/0
http://op.niscair.res.in/index.php/IJCA/article/download/15495/47495
http://op.niscair.res.in/index.php/IJCA/article/download/15495/52827
 
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