A novel Ag deposited nanocoordination polymer derived porous SnO<sub>2</sub>/NiO heteronanostructure for the enhanced photocatalytic reduction of Cr(<scp>vi</scp>) under visible light

Rakibuddin, Md.; Ananthakrishnan, Rajakumar

doi:10.1039/c5nj02755a

Cited by 44 publications

(18 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It causes a reduction in the depletion region and allowing charge transfer over the interface barrier . Herein, NiO acts as an electron trap, which initiates water reduction to H 2 generation as shown in Figure ,. Moreover, greater hydrogen formation can be attributed to its ability due to lower recombination rate of e − ‐h and hence, electrons can be readily available for H + ions.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

et al. 2019

View full text Add to dashboard Cite

This report discussed the efficient hydrogen generation via water splitting and fast dye degradation pathway using Ce doped SnO 2 nanoparticles. One pot synthesis of Ce doped SnO 2 nanoparticles was carried out by a simple, convenient wet chemical method using H 2 O 2 and the product obtained was characterized using array of physico-chemical techniques. Powder X-ray diffraction confirmed the presence of rutile phase. Band gap for Ce:SnO 2 was found out to be 3.80 eV which is more than the pure SnO 2 (3.71 eV) and it is due to Moss-Burstein effect. EDAX analysis and elemental mapping support uniform distribution of 5% Ce and the SEM imaging depicts irregular shape of nanocrystallites. The doping of 5% Ce into the interstitial and lattice positions of SnO 2 nanoparticles was also confirmed by the X-ray photo-electron spectroscopy analysis. Raman measurement and photoluminescence analysis showed the presence of oxygen vacancies and disorderness in the nanoparticles. Photocatalytic water splitting proficiency was investigated using Ce doped SnO 2 nanomaterials in the presence of NiO as co-catalyst and other different sacrificial reagents such as methanol, Na 2 S-Na 2 SO 3 , EDTA ions, triethanolamine and in combinations. It was found that the evolution of H 2 is maximum i. e. 25 μmol/g/h in presence of as-synthesized catalyst, NiO (co-catalyst) along with EDTA and methanol as scavengers under UV light irradiation. Further, the degradation of methylene blue and methyl orange dyes was investigated under UV-Visible irradiation using Ce: SnO 2 NPs.[a] Dr.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Several reports have used sacrificial reagents such as EDTA, methanol, Na 2 S‐Na 2 SO 3, triethanolamine (TEOA) etc. in water splitting reactions ,…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Figure 1c shows the XRD patterns of the SnO 2 aerogel/rGO nanocomposite after the heat treatment. The SnO 2 aerogel exhibited a rutile-type tetragonal crystal structure and the XRD peaks at 26.61°, 33.89°, 37.95°, and 51.78° corresponded to the (110), (101), (200), and (211) crystal planes of the SnO 2 aerogel/rGO nanocomposites, respectively, with the following cell parameters: a, b = 4.738 Å and c = 3.187 Å (JCPDS #41–1445) [47]. However, the graphene diffraction pattern could not be indexed because of the low amount of GO flakes.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of SnO2 Aerogel/Reduced Graphene Oxide Nanocomposites via in Situ Annealing for the Photocatalytic Degradation of Methyl Orange

et al. 2019

View full text Add to dashboard Cite

SnO2 aerogel/reduced graphene oxide (rGO) nanocomposites were synthesized using the sol–gel method. A homogeneous dispersion of graphene oxide (GO) flakes in a tin precursor solution was captured in a three-dimensional network SnO2 aerogel matrix and successively underwent supercritical alcohol drying followed by the in situ thermal reduction of GO, resulting in SnO2 aerogel/rGO nanocomposites. The chemical interaction between aerogel matrix and GO functional groups was confirmed by a peak shift in the Fourier transform infrared spectra and a change in the optical bandgap of the diffuse reflectance spectra. The role of rGO in 3D aerogel structure was studied in terms of photocatalytic activity with detailed mechanism of the enhancement such as electron transfer between the GO and SnO2. In addition, the photocatalytic activity of these nanocomposites in the methyl orange degradation varied depending on the amount of rGO loading in the SnO2 aerogel matrix; an appropriate amount of rGO was required for the highest enhancement in the photocatalytic activity of the SnO2 aerogel. The proposed nanocomposites could be a useful solution against water pollutants.

show abstract

“…Works involving Ag3PO4 silver orthophosphate have been expressive mainly due to their excellent properties optical, semiconductor [55][56][57][58][59][60][61][62], photocatalytic and antimicrobial [63][64][65][66] The particle size [57,[67][68][69][70], synthesis methods [61,[71][72][73], effect of the localized surface plasmon resonance (LSPR) induced by metallic nanoparticles [68,74,75], as well as the morphology [56,76,77] directly interfere in photocatalytic and biologic Ag3PO4 properties [78][79][80]. Moreover, Ag3PO4 presents high instability when irradiated, which impairs its use in photocatalys with conventional light sources [62,81].…”

Section: Introductionmentioning

confidence: 99%

Microorganisms Photocatalytic Inactivation on Ag3PO4 Sub-Microcrystals Under WLEDs Light Source

Cruz-Filho

Costa

Lima

et al. 2021

J Inorg Organomet Polym

View full text Add to dashboard Cite

In this article, we report the silver orthophosphate (Ag3PO4) photocatalytic inactivation properties on strains Gram-positive Saprophyte B. subtilis, a diploid fungus Candida albicans and Gram-negative Pseudomonas aeruginosa, using as irradiation source white-light-emitting diodes (WLEDs) with luminous flux ( v) of 1.3 x 10 3 Lumens and relative power density of 15 mW m -2 . Microorganisms death curves and the kinetic constants (Kd) indicated that the inhibitory effect of the Ag3PO4 under WLEDs irradiation is well pronounced to C. albicans (6.6 x 10 -2 min -1 ) in relation to P. augenosas (4.6 x 10 -2 min -1 ) and B. subitilis (2.5 x 10 -2 min -1 ). Decimal reduction time (Dt) were 34.4 min to C. albicans, 50.1 min P. augenosas and 92.1 min to B.subitilisThe micrographs obtained by scanning electron microscopy with field emission gun (SEM-FEG) demonstrated that there was cell wall permeability and consequently total rupture in the C. albicans, suggesting the lipid peroxidation phenomenon and protein oxidation promoted by the presence of reactive oxygen species (ROS). Furthermore, it was observed the Ag3PO4 when irradiated by WLEDs demonstrates important sporicidal activity in related to B. subtilis, promoting the endospore wall rupture.

show abstract

A novel Ag deposited nanocoordination polymer derived porous SnO₂/NiO heteronanostructure for the enhanced photocatalytic reduction of Cr(vi) under visible light

Abstract: A novel silver deposited SnO2/NiO heteronanostructure is prepared and applied for the photocatalytic reduction of toxic aqueous Cr(vi) under visible light conditions.

Cited by 44 publications

References 71 publications

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

Facile Synthesis of SnO2 Aerogel/Reduced Graphene Oxide Nanocomposites via in Situ Annealing for the Photocatalytic Degradation of Methyl Orange

Microorganisms Photocatalytic Inactivation on Ag3PO4 Sub-Microcrystals Under WLEDs Light Source

Contact Info

Product

Resources

About

A novel Ag deposited nanocoordination polymer derived porous SnO2/NiO heteronanostructure for the enhanced photocatalytic reduction of Cr(vi) under visible light

Abstract: A novel silver deposited SnO2/NiO heteronanostructure is prepared and applied for the photocatalytic reduction of toxic aqueous Cr(vi) under visible light conditions.

Cited by 44 publications

References 71 publications

Facile Synthesis of Ce–Doped SnO2 Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

Facile Synthesis of Ce–Doped SnO2 Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

Facile Synthesis of SnO2 Aerogel/Reduced Graphene Oxide Nanocomposites via in Situ Annealing for the Photocatalytic Degradation of Methyl Orange

Microorganisms Photocatalytic Inactivation on Ag3PO4 Sub-Microcrystals Under WLEDs Light Source

Contact Info

Product

Resources

About

A novel Ag deposited nanocoordination polymer derived porous SnO₂/NiO heteronanostructure for the enhanced photocatalytic reduction of Cr(vi) under visible light

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation

Facile Synthesis of Ce–Doped SnO₂ Nanoparticles: A Promising Photocatalyst for Hydrogen Evolution and Dyes Degradation