How can you identify bentonite from FTIR?
This page summarizes the recurring FTIR evidence reported for bentonite, 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 21 cited sources
Quick answer
bentonite 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
| Funkcionālā grupa | Pierādījumi |
|---|---|
| Hydroxyl (O-H) | 25 |
| Silicon-oxygen (Si-O) | 23 |
| Silicon (Si) | 9 |
| Siloxane (Si-O-Si) | 8 |
| Water (H2O) | 7 |
| Metal hydroxyl | 5 |
| Carbonate | 5 |
| Metal oxygen | 3 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of bentonite, 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
-
pārliecība 0,9
bentonite
Composite of bentonite and cyclodextrin as an efficient catalyst for promoting chemical transformations in aqueous media DOI: 10.1038/s41598-021-84349-9 -
pārliecība 0,8
bentonite
Hayati-Ashtiani - 2012 - Use of FTIR Spectroscopy in the Characterization o DOI: 10.1080/02726351.2011.615895 -
pārliecība 0,8
bentonite
Ammann 和 Brandl - 2011 - Detection and differentiation of bacterial spores DOI: 10.1186/2046-1682-4-14 -
pārliecība 0,8
bentonite
Rehydration Driven Na-Activation of Bentonite—Evolution of the Clay Structure and Composition DOI: 10.3390/ma14247622 -
pārliecība 0,8
bentonite
Surface Modification of Bentonite with Polymer Brushes and Its Application as an Efficient Adsorbent for the Removal of Hazardous Dye Orange I DOI: 10.3390/nano10061112 -
pārliecība 0,8
bentonite
Mara 等 - 2016 - Effect of Sulfuric Acid Concentration of Bentonite DOI: 10.1063/1.4945496 -
pārliecība 0,7
bentonite
Annan 等 - 2021 - Synthesis and Characterization of Modified Kaolin- DOI: 10.1155/2021/6679422 -
pārliecība 0,7
bentonite
Ashiq 等 - 2019 - Municipal solid waste biochar-bentonite composite DOI: 10.1016/j.jenvman.2019.02.006 -
pārliecība 0,7
bentonite
Hydrocracking of crude palm oil to a biofuel using zirconium nitride and zirconium phosphide-modified bentonite DOI: 10.1039/d2ra03941a -
pārliecība 0,7
bentonite
Khodosova 等 - 2022 - Magnetic Nanosorbents Based on Bentonite and CoFe2 DOI: 10.3390/min12111474
Upload your FTIR spectrum
Get AI-based polymer identification and peak-by-peak interpretation from your own spectrum.