Silicate — FTIR-absorptions-toppe og tildelinger
Dette er de karakteristiske FTIR-bølgetal, hvor Silicate har tendens til at absorbere, samlet fra publiceret litteratur og rangeret efter understøttende bevis. Hver tildeling kan spores til en kilde (DOI) og krydsvalideres mod vores 130.000+ referencespektre og vidensgraf.
Backed by 8 cited sources
Hurtigt svar
Silicate tildeles normalt ved at lede efter en tilbagevendende klynge af karakteristiske toppe frem for et præcist lærebogsnummer. Tabellen nedenfor viser, hvor litteraturen oftest placerer denne gruppe i FTIR, rangeret efter akkumuleret evidens.
Karakteristiske FTIR-toppe for Silicate
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 800 | 4 | 4 | 1,0 |
| 1000 | 3 | 3 | 1,0 |
| 1400 | 3 | 3 | 1,0 |
| 1050 | 2 | 2 | 1,0 |
| 900 | 2 | 2 | 1,0 |
| 470 | 2 | 2 | 1,0 |
| 945 | 2 | 2 | 1,0 |
| 437 | 1 | 1 | 1,0 |
| 870 | 1 | 1 | 1,0 |
| 990 | 1 | 1 | 1,0 |
| 950 | 1 | 1 | 1,0 |
| 1029 | 1 | 1 | 1,0 |
| 3325 | 1 | 1 | 1,0 |
| 1646 | 1 | 1 | 1,0 |
| 1100 | 1 | 1 | 1,0 |
| 462 | 1 | 1 | 1,0 |
| 710 | 1 | 1 | 1,0 |
| 3450 | 1 | 1 | 1,0 |
| 795 | 1 | 1 | 1,0 |
| 1776 | 1 | 1 | 1,0 |
| 680 | 1 | 1 | 1,0 |
| 1040 | 1 | 1 | 1,0 |
| 445 | 1 | 1 | 1,0 |
| 960 | 1 | 1 | 1,0 |
| 3620 | 1 | 1 | 1,0 |
| 1630 | 1 | 1 | 1,0 |
| 2924 | 1 | 1 | 1,0 |
| 1110 | 1 | 1 | 1,0 |
| 1423 | 1 | 1 | 1,0 |
| 463 | 1 | 1 | 1,0 |
Viser de 30 bedst understøttede toppe ud af 82 i alt for Silicate.
Spektrumlogik
En funktionel gruppetildeling bliver mere sikker, når flere forventede bånd optræder sammen. Brug denne side til at finde de bedst understøttede peaks, og bekræft derefter, at den samme prøve udviser et sammenhængende mønster snarere end et enkelt isoleret hit.
Anvendelse i virkeligheden
Disse sider er nyttige til analyse af ukendte materialer, topforklaring i rapporter, polymerfejlfinding og verifikation af, om en kandidatmaterialefamilie er kemisk plausibel.
Almindelige fejl
- Brug af én funktionel-gruppe-side som en komplet materialebedømmelse uden at kontrollere resten af spektret.
- Antager, at det stærkeste bånd altid er det mest diagnostiske.
- At glemme, at forarbejdning, tilsætningsstoffer, ældning og blandinger kan flytte eller udvide forventede toppe.
Verifikationsrådgivning
Brug DSC, GC-MS eller TGA, når flere materialefamilier deler lignende bånd, eller når blandings-effekter gør FTIR-tildelingen usikker.
Litteratur bag disse tildelinger
-
1429 cm⁻¹ tillid 1,0
“The sodium silicate μL and 100 DMSO per well was added to dissolve the shows the absorption bands around 1429, 970, 864 and cm-1”
Fabrication of Biogenic Silica Nanostructures from Sorghum bicolor Leaves for Food Industry Applications DOI: 10.1007/s12633-020-00379-4 -
3500 cm⁻¹ tillid 1,0
“The silane-modified NaeMt 29Si pattern of NMR spectrum of in DMF cm-1 eOH band after 3500 is associated with metal groups in silicate medium is presented in Fig.”
Silane functionalization of sodium montmorillonite nanoclay_ The effect of dispersing media on intercalation and chemical grafting DOI: 10.1016/j.clay.2017.12.020 -
1400 cm⁻¹ tillid 1,0
“1400cm-1 due to silicate, tetrahedral and triangular borate Table 2 depicts the corrosion weight loss data of the three 1700 groups, respectively.”
Corrosion Behavior Mechanism of Borosilicate Glasses Towards Different Leaching Solutions Evaluated by the Grain Method and FTIR Spectral Analysis Before and After Gamma Irradiation DOI: 10.1007/s12633-017-9586-1 -
470 cm⁻¹ tillid 1,0
“The second silicate bands are 4 cm-1 in C-S-H broadly characterized as O-Si-O deformation or bending modes, which occur near 451 470cm-1 cm-1 667cm-1 and in C-A-S-H and the band 663 or is due to Si-O-Si bending vibrations.”
He 等 - 2011 - Morphology and Structure of Aluminum Substituted C DOI: 10.4028/www.scientific.net/AMR.287-290.1193 -
1034 cm⁻¹ tillid 1,0
“cm-1 appeared at 1509 A weak peak at 1034 showed asymmetric stretching of C-OC and Si-O stretching vibration, indicating the presence of silicates.”
Structural, Physical, and Mechanical Analysis of ZnO and TiO2 Nanoparticle-Reinforced Self-Adhesive Coating Restorative Material DOI: 10.3390/ma14247507 -
975 cm⁻¹ tillid 1,0
“Intense, shoulder Intense Si-O 1000 SiO2 stretching lattice n/a Intense, shoulder Intense Si-O 975 SiO2 silicate stretching (kaolinite, illite) [86] n/a Intense, shoulder Intense”
FTIR photoacoustic spectroscopy for identification and assessment of soil components_ Chernozems and their size fractions DOI: 10.1016/j.pacs.2020.100162 -
800 cm⁻¹ tillid 1,0
“K FTIR spectra of these solutions show great variaFigure 3 FTIR spectra of silica sol, potassium silicate solution and tions in band shape and band location between 800 and the corresponding potassium silicate glass.”
Osswald 和 Fehr - 2006 - FTIR spectroscopic study on liquid silica solution DOI: 10.1007/s10853-006-7327-8 -
969 cm⁻¹ tillid 1,0
“The absorption band at 953 and is designated to the stretching 857cm-1 frequency of Sr-O bond and Si-O stretching frequency appears at in the prepared silicate materials is due to the asymmetric 969cm-1 stretching frequency of Si-O bond in”
Down-conversion characteristics of Eu3+ doped M2Y2Si2O9 (M = Ba, Ca, Mg and Sr) nanomaterials for innovative solar panels DOI: 10.1016/j.pnsc.2019.07.003
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