Supporting Information - Royal Society of Chemistry1 Supporting Information 2 3 Controlled Synthesis...
Transcript of Supporting Information - Royal Society of Chemistry1 Supporting Information 2 3 Controlled Synthesis...
Supporting Information 1
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Controlled Synthesis of Silver Phosphate Crystals with High 3
Photocatalytic Activity and Bacteriostatic Activity 4
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Jin-Ku Liu1,*, Chong-Xiao Luo1, Jian-Dong Wang1, Xiao-Hong Yang2, Xin-Hua Zhong1 6
1Department of Chemistry, Key Laboratory for Advanced Materials of Ministry of Education, East China 7
University of Science and Technology, Shanghai 200237 P.R.China 8 2Department of Chemistry, Chizhou University, Chizhou, P.R. China 247000, P.R.China 9
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Figure S1 showed TEM and SEM images and electron diffraction patterns recorded 11
on pine tree shape, chromosome shape, hex-cross shape, and spinning-top shape of 12
Ag3PO4 crystals, respectively. The results demonstrated the controlled growth of 13
vertically aligned Ag3PO4 crystals in the [100] orientations. The similar controls have 14
also been achieved over the orientation of Ag3PO4 crystals. Furthermore, the 15
structures of Ag3PO4 crystals always remained the same cubic phase when Ag3PO4 16
crystals grew under different reagents. 17
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* Corresponding author; E‐mail address: [email protected]
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Figure S1. The TEM and ED images of the Ag3PO4 crystals synthesized under different 26
addition reagents: (a) no reagent; (b) 1 g/L of Triton-100; (c) 1 g/L of polyglycol-400; (d) 1 27
g/L of sodium polyacrylate. 28
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The approximate absorption spectra in the FT-IR spectra provided an accessorial 30
explanation that the products had the same crystal structure. The corresponding FT-IR 31
spectrum of the products was shown in Figure S2. The spectrum bands at 3435, 2350, 32
1635, 1390, 1015 and 560 cm-1 were assigned to water ν1(H-O-H) antisymmetric 33
bending mode, water-phosphate H bonding, ν2(PO43-) antisymmetric stretching mode, 34
ν3(PO43-) symmetric stretching mode and ν3(PO4
3-) in-phase P-O bend [S1] 35
respectively. 36
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Figure S2 The FT-IR spectra of the silver phosphate synthesized under different addition 38
reagents: (a) no reagent; (b) 1 g/L of Triton-100; (c) 1 g/L of polyglycol-400; (d) 1 g/L of 39
sodium polyacrylate. 40
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Their Raman spectra were shown in Figure S3. Raman scattering was a powerful 41
tools for observing the synthesis of Ag3PO4 crystals under different organic addition 42
reagents. The absorption bands at 500 and 720 cm-1 were attributed to P-O bending 43
and stretching vibration. The absorption band within 200-250 cm-1 was the H-O-H 44
stretching broad. 45
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Figure S3 FT-Raman spectra of Ag3PO4 crystals synthesized under different addition 49
reagents: (a) no reagent; (b) 1 g/L of Triton-100; (c) 1 g/L of polyglycol-400; (d) 1 g/L of 50
sodium polyacrylate. 51
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Figure S4 displayed the N2 adsorption/desorption isotherms of the Ag3PO4 crystals 53
under different addition reagents. The Ag3PO4 crystals under different addition 54
reagents exhibited the type II adsorption isotherm without prominent rise at p/p0 < 0.1 55
and with a marginal hysteresis at p/p0 > 0.9. The BET surface area was evaluated to 56
be 1.5, 1.2, 16.6 and 15.6 m2/g for Ag3PO4 crystals under the different condition, (a) 57
no reagent; (b) 1 g/L of Triton X-100; (c) 1 g/L of polyglycol-2000; (d) 1 g/L of 58
sodium polyacrylate, respectively [S2]. 59
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Figure S4 Nitrogen adsorption-desorption isotherms of Ag3PO4 crystals under different 62
addition reagents: (a) no reagent; (b) 1 g/L of Triton X-100; (c) 1 g/L of polyglycol-2000; (d) 63
1 g/L of sodium polyacrylate. 64
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S1. Qian, G. R.; Xu, X.; Sun, W. M.; Xu, Y. F.; Liu, Q. Mater. Res. Bull. 2008, 43: 3463-3473. 66
S2. Toshiaki, T.; Patchanee, C.; Vu, Q. T.; Toshiki, F.; Minoru, T. Appl. Catal. A-Gen. 2012, 67
437/438: 24-27. 68
Electronic Supplementary Material (ESI) for CrystEngCommThis journal is © The Royal Society of Chemistry 2012