Photocatalytic properties of mesoporous alumina containing Ni doped CdS nanostructures

Ghugal, Sachin G.; Mahalik, Rakesh Ranjan; Charde, Pranali S.; Umare, Suresh S.; Kokane, Sanjay B.; Sudarsan, V.; Sasikala, R.

doi:10.1016/j.micromeso.2017.01.027

Cited by 18 publications

(4 citation statements)

References 38 publications

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“…The present shrinkage of E g recognized the existence of Ni 2+ within Cd-Zn-S lattice [56]. This noticeable reduction in E g by Ni doping is by the generation of extra energy levels inside the E g of Cd-Zn-S which broaden the light absorption towards the longer wavelengths [64]. The shrinkage in E g by Ni addition is explained by the energy level diagram as shown in Fig.…”

Section: Energy Gap (E G )supporting

confidence: 54%

Enhanced Photo-Catalytic and Antibacterial Properties of Ni-Doped Cd0.9Zn0.1S Nanostructures

Jothi¹,

Ganesh

Muthukumaran³

et al. 2021

J Inorg Organomet Polym

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The present work describe the synthesis of Cd 0.9 Zn 0.1 S and Cd 0.87 Zn 0.1 Ni 0.03 S nanostructures by chemical co-precipitation method. The XRD profile proved the cubic crystal structure of the samples without any impurity related phases. The reduced size from 63 to 51 Å and the dissimilarities in lattice parameters and micro-strain has been discussed by Ni addition in Cd 0.87 Zn 0.1 Ni 0.03 S structure. The noticed anomalous optical studies and the elevated transmittance at Ni doped sample suggested them for the fabrication of efficient opto-electronic devices. The energy gap reduction during the substitution of Ni = 3% is explained by the generation of extra energy levels associated with defects within the two bands. The release of additional charge carriers, improved optical property, reduced particle size and more defect generation are responsible for the enhanced photo-catalytic performance of Ni doped Cd 0.9 Zn 0.1 S. The enhanced anti-bacterial capacity in Cd 0.87 Zn 0.1 Ni 0.03 S is described by the collective response of reduced particle size and higher reactive oxygen species (ROS) like O 2 ⋅− , H 2 O 2 and OH ⋅ generating capacity.

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Section: Energy Gap (E G )supporting

confidence: 54%

Enhanced Photo-Catalytic and Antibacterial Properties of Ni-Doped Cd0.9Zn0.1S Nanostructures

Jothi¹,

Ganesh

Muthukumaran³

et al. 2021

J Inorg Organomet Polym

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show abstract

“…In addition, Ghugal et al [31] demonstrated that the active species responsible for the photo-degradation reaction are photogenerated electron (e -), hydroxyl radical (OH . ), superoxide radical anion (O 2 .-) and photogenerated holes (h + ).…”

Section: The Mechanism Studymentioning

confidence: 99%

Photo-catalytic selective organic transformations by Fe-doped octahedral molecular sieves (manganese oxide) nano-structure

Said

El-Maghrabi

Riad

et al. 2018

Journal of Asian Ceramic Societies

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“…These challenges trigger the development of various support materials for photocatalysts. Some of the support materials investigated so far include: activated carbon (Jokar- Baloochi et al, 2018), alumina (Ghugal et al, 2017), silica (Meng et al, 2018), zeolites (Ghasemi et al, 2016, Jaafar et al, 2012, clays (Mishra et al, 2018, Mekatel et al, 2012. Aggregation of fine particles of photocatalyst can be suppressed by dispersing the particles on a suitable support material.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of ZnFe2O4/α-Al2O3 for Photocatalytic Degradation of Methylene Blue Dye and Real Textile Effluent

Hamza

Umara

Hasan

2019

Aceh Int. J. Sci. Technol

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Present work was aimed at the development of α-Al2O3 supported ZnFe2O4 visible-light responsive photocatalysts. ZnFe2O4 and α-Al2O3 supported ZnFe2O4 were synthesized using coprecipitation method followed by calcination at 500 °C. The synthesized photocatalysts were characterized using x-ray diffraction (XRD) and scanning electron microscopy (SEM). The synthesized ZnFe2O4 has low crystallinity. The particle size of ZnFe2O4 is much smaller than that of the α-Al2O3 support, and ZnFe2O4 particles are dispersed on the surface of the crystalline α-Al2O3 support. 30 wt % ZnFe2O4/α-Al2O3 exhibited the highest photocatalytic activity for degradation of methylene blue dye than ZnFe2O4 and other α-Al2O3 supported photocatalysts containing 10 wt %, 20 wt % and 40 wt % ZnFe2O4. Kinetics of photocatalytic degradation of methylene blue dye using 30 wt % ZnFe2O4/Al2O3 obeys Langmuir-Hinshelwood kinetic model. Photocatalytic treatment of real textile wastewater resulted in more effective (when compared to photolytic treatment) in the reduction of wastewater's chemical oxygen demand (COD), pH, conductivity and total dissolved solids (TDS). 30 wt% ZnFe2O4/Al2O3 was found to be more effective than unsupported ZnFe2O4 for the reduction of wastewater's COD, pH, conductivity and TDS.

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Photocatalytic properties of mesoporous alumina containing Ni doped CdS nanostructures

Cited by 18 publications

References 38 publications

Enhanced Photo-Catalytic and Antibacterial Properties of Ni-Doped Cd0.9Zn0.1S Nanostructures

Enhanced Photo-Catalytic and Antibacterial Properties of Ni-Doped Cd0.9Zn0.1S Nanostructures

Photo-catalytic selective organic transformations by Fe-doped octahedral molecular sieves (manganese oxide) nano-structure

Preparation and Application of ZnFe2O4/α-Al2O3 for Photocatalytic Degradation of Methylene Blue Dye and Real Textile Effluent

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