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Supporting Information Photoluminescent spray-coated paper sheet: Write-in- the-dark Tawfik A. Khattab, a Hussein Abou-Yousef, b and Samir Kamel b a Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt b Cellulose and Paper Department, National Research Centre, Cairo 12622, Egypt Corresponding author: Dr. Tawfik A. Khattab, Email address: [email protected] List of contents: Table S1 The elemental composition in weight % and atomic % of two different regions (Cell-2). Table S2 Elemental analysis by WDXRF Table S3 Coloration values of Cell-2 at different conditions; before (a) and under (b) ultraviolet (λ= 365nm) irradiation for 3 min at room temperature; and few seconds (c) to 30 min (d) after the removal of ultraviolet source. Table S4 Light fastness and absorption wavelength of coated cellulose fibers at different phosphor concentrations; before and directly after exposure to UV irradiation for 3 min. Fig. S1 The emission peaks of Cell-2 and the solid state pigment; SrAl 2 O 4 :Eu 2+ ,Dy 3+ . Fig. S2 XRF diagram electronic images of both Strontium (top) and Aluminium (bottom) for Cell-2. Fig. S3 FTIR spectra of cellulose substrates spray-coated with pigment phosphor at different concentrations. Fig. S4 Thermal degradation behavior of cellulose coated fibers Cell-0.1 (a), Cell-1 (b), and Cell-4 (c). Fig. S5 SEM images of Cell-0. Fig. S6 SEM images of Cell-B. Page 1 of 19
Transcript of ars.els-cdn.com · Web viewa Dyeing, Printing and Auxiliaries Department, National Research Centre,...
Supporting InformationPhotoluminescent spray-coated paper sheet: Write-in-the-dark
Tawfik A. Khattab,a Hussein Abou-Yousef,b and Samir Kamelb
a Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
b Cellulose and Paper Department, National Research Centre, Cairo 12622, Egypt
Corresponding author: Dr. Tawfik A. Khattab, Email address: [email protected]
List of contents:Table S1 The elemental composition in weight % and atomic % of two different regions (Cell-2).Table S2 Elemental analysis by WDXRFTable S3 Coloration values of Cell-2 at different conditions; before (a) and under (b) ultraviolet (λ= 365nm) irradiation for 3 min at room temperature; and few seconds (c) to 30 min (d) after the removal of ultraviolet source.Table S4 Light fastness and absorption wavelength of coated cellulose fibers at different phosphor concentrations; before and directly after exposure to UV irradiation for 3 min. Fig. S1 The emission peaks of Cell-2 and the solid state pigment; SrAl2O4:Eu2+,Dy3+.Fig. S2 XRF diagram electronic images of both Strontium (top) and Aluminium (bottom) for Cell-2.Fig. S3 FTIR spectra of cellulose substrates spray-coated with pigment phosphor at different concentrations.Fig. S4 Thermal degradation behavior of cellulose coated fibers Cell-0.1 (a), Cell-1 (b), and Cell-4 (c). Fig. S5 SEM images of Cell-0.Fig. S6 SEM images of Cell-B.Fig. S7 SEM images of Cell-0.1.Fig. S8 SEM images of Cell-1.Fig. S9 SEM images of Cell-3.Fig. S10 SEM images of Cell-4.Fig. S11 elemental mapping (top) and EDX diagram (bottom) for Cell-0.Fig. S12 elemental mapping (top) and EDX diagram (bottom) for Cell-B.Fig. S13 elemental mapping (top) and EDX diagram (bottom) for Cell-1.Fig. S14 elemental mapping (top) and EDX diagram (bottom) for Cell-3.Fig. S15 elemental mapping (top) and EDX diagram (bottom) for Cell-4.
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Table S1 The elemental composition in weight % and atomic % of two different regions (Cell-2).
Samples Region 1 Region 2Al Wt. % 2.28 3.25
At. % 1.19 1.69Sr Wt. % 2.39 4.06
At. % 0.39 0.65Eu Wt. % 0.56 0.55
At. % 0.05 0.05Dy Wt. % 0.13 0.37
At. % 0.01 0.03
Table S2 Elemental analysis by WDXRF
Main Constituent (wt%) as sample 100% (wt%)SiO2
Al2O3
MgOCaOSrO
Na2OK2OP2O5
SO3
Cl
3.2459.760.551.55
20.251.530.640.27
10.501.71
0.2684.9300.0450.1271.6670.1260.0530.0220.8660.141
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Table S3 Coloration values of Cell-2 at different conditions; before (a) and under (b) ultraviolet (λ= 365nm) irradiation for 3 min at room temperature; and few seconds (c) to 30 min (d) after the removal of ultraviolet source.
Condition L* a* b* K/S λmax (nm) colora 86.80 - 2.01 19.28 3.18 355 off-whiteb 84.12 - 2.68 16.08 4.79 465 green-yellowc 84.08 - 1.23 21.20 2.71 365 bright whited 83.87 - 3.51 11.13 4.01 495 turquoise
Table S4 Light fastness and absorption wavelength of coated cellulose fibers at different phosphor concentrations; before and directly after exposure to UV irradiation for 3 min.
Pigment Phosphor wt%
Light fastness
λmax (nm)Before After
Cell-0.1 6 355 360Cell-1 6-7 355 365Cell-2 6 355 365Cell-3 6 355 360Cell-4 6-7 355 360
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Fig. S1 The emission peaks of Cell-2 and the solid state pigment; SrAl2O4:Eu2+,Dy3+.
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Fig. S2 XRF diagram electronic images of both Strontium (top) and Aluminium (bottom) for Cell-2.
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Fig. S3 FTIR spectra of cellulose substrates spray-coated with pigment phosphor at different concentrations.
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Fig. S4 Thermal degradation behavior of cellulose coated fibers Cell-0.1 (a), Cell-1 (b), and Cell-4 (c).
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Fig. S5 SEM images of Cell-0.
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Fig. S6 SEM images of Cell-B.
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Fig. S7 SEM images of Cell-0.1.
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Fig. S8 SEM images of Cell-1.
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Fig. S9 SEM images of Cell-3.
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Fig. S10 SEM images of Cell-4.
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Fig. S11 elemental mapping (top) and EDX diagram (bottom) for Cell-0.
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Fig. S12 elemental mapping (top) and EDX diagram (bottom) for Cell-B.
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Fig. S13 elemental mapping (top) and EDX diagram (bottom) for Cell-1.
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Fig. S14 elemental mapping (top) and EDX diagram (bottom) for Cell-3.
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Fig. S15 elemental mapping (top) and EDX diagram (bottom) for Cell-4.
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