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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01999
|2 doi
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|a pubmed25n1107.xml
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|a (DE-627)NLM332448991
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|a (NLM)34706541
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|a DE-627
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|a eng
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|a Nazim, Mohammed
|e verfasserin
|4 aut
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|a Development of Three-Dimensional Nickel-Cobalt Oxide Nanoflowers for Superior Photocatalytic Degradation of Food Colorant Dyes
|b Catalyst Properties and Reaction Kinetic Study
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 27.01.2022
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|a Date Revised 27.01.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this work, we present three-dimensional flower-like nickel-cobalt oxide (F-NCO) nanosheets developed in a facile, eco-friendly hydrothermal route to apply as photocatalysts for food colorant Allura Red AC dye removal under light illumination. Using Brunauer-Emmett-Teller analysis, it was found that the F-NCO nanosheets displayed a surface area of ∼53.65 m2/g and a Barrett-Joyner-Halenda pore size of ∼14 nm, which was also confirmed by the calculated crystallite size of ∼15 nm using powder X-ray diffraction (XRD) analysis. From Williamson-Hall analysis of XRD spectra, F-NCO nanosheets revealed a crystal-lattice strain of ∼3.42 × 10-3 and a dislocation density of ∼4.397 × 1015 lines/m2 in the crystal structure. Transmission electron microscopy analysis revealed that F-NCO nanosheets accumulated to form flower-like nanostructures of <100 nm length with a d-spacing of ∼2.6 Å, which is attributed to the (311) crystallographic plane (α = γ = β = 90°, a = b = c = 8.110 Å, JCPDS No. 00-020-0781) of the cubic phase. The F-NCO nanosheets exhibited an excellent photocatalytic efficiency of ∼94.75% in ∼10 min with sodium borohydride under UV light. The Langmuir-Hinshelwood model determined pseudo-first-order reaction kinetics of dye degradation using the ln[AtA0]versus time plot. The kinetic study produced a first-order rate constant (k) of ∼0.219 min-1, resulting in ∼3.16 min half-life (t1/2) for the F-NCO-catalyzed degradation reaction. Thus outstanding photocatalytic performance of F-NCO nanosheets would display their huge potential for organic-pollutant removal from water with exceptional recyclability for wide research applications in the future
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Coloring Agents
|2 NLM
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|a Food Coloring Agents
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|a Oxides
|2 NLM
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|a Cobalt
|2 NLM
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|a 3G0H8C9362
|2 NLM
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|a Nickel
|2 NLM
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|a 7OV03QG267
|2 NLM
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|a cobalt oxide
|2 NLM
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|a USK772NS56
|2 NLM
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|a Kim, Jae Hyun
|e verfasserin
|4 aut
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|a Lee, Hee-Young
|e verfasserin
|4 aut
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|a Cho, Sung Ki
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 37(2021), 44 vom: 09. Nov., Seite 12929-12939
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
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|g volume:37
|g year:2021
|g number:44
|g day:09
|g month:11
|g pages:12929-12939
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01999
|3 Volltext
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|d 37
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