How can you identify goethite from FTIR?
This page summarizes the recurring FTIR evidence reported for goethite, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 16 cited sources
Quick answer
goethite is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Peak interpretation
Possible materials / groups
| Kumpulan berfungsi | Bukti |
|---|---|
| Hydroxyl (O-H) | 19 |
| Metal oxygen | 8 |
| Aromatic ring | 6 |
| Carboxyl (COOH) | 6 |
| C-O single bond | 6 |
| Amide | 4 |
| N h | 4 |
| Silicon-oxygen (Si-O) | 4 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of goethite, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
-
keyakinan 0.9
goethite
Reactions of nitrite with goethite and surface Fe(II)-goethite complexes DOI: 10.1016/j.scitotenv.2021.146406 -
keyakinan 0.9
goethite
Hidden colours in stuccowork damaged by fire: A multi-analytical investigation for revealing the original decorative pattern DOI: 10.1016/j.culher.2015.11.002 -
keyakinan 0.9
goethite
Effects of Flavin-Goethite Interaction on Goethite Reduction by Shewanella decolorationis S12 DOI: 10.3389/fmicb.2019.01623 -
keyakinan 0.8
goethite
Surface Complexation Modeling and FTIR Study of Carbonate Adsorption to Goethite DOI: 10.1006/jcis.2000.7341 -
keyakinan 0.8
goethite
Oxolinic Acid Binding at Goethite and Akaganeite Surfaces: Experimental Study and Modeling DOI: 10.1021/acs.est.5b04940 -
keyakinan 0.8
goethite
Morsch 等 - 2023 - The effect of cross-linker structure on interfacia DOI: 10.1016/j.apsusc.2022.155380 -
keyakinan 0.8
goethite
Effects of Interfaces of Goethite and Humic Acid-Goethite Complex on Microbial Degradation of Methyl Parathion DOI: 10.3389/fmicb.2018.01748 -
keyakinan 0.7
goethite
Efficiency of Fe3O4 Nanoparticles with Different Pretreatments for Enhancing Biogas Yield of Macroalgae Ulva intestinalis Linnaeus DOI: 10.3390/molecules26165105 -
keyakinan 0.7
goethite
Yang 等 - 2013 - Molecular-Scale Study of Salicylate Adsorption and DOI: 10.1021/jp4027578 -
keyakinan 0.6
goethite
Prasad 等 - 2006 - In situ FTIR study on the dehydration of natural g DOI: 10.1016/j.jseaes.2005.05.005
Upload your FTIR spectrum
Get AI-based polymer identification and peak-by-peak interpretation from your own spectrum.