How can you identify geopolymer from FTIR?
This page summarizes the recurring FTIR evidence reported for geopolymer, 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 14 cited sources
Quick answer
geopolymer 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
| Functional group | Evidence |
|---|---|
| Silicon-oxygen (Si-O) | 22 |
| Hydroxyl (O-H) | 12 |
| Metal oxygen | 12 |
| Silicon (Si) | 8 |
| Siloxane (Si-O-Si) | 8 |
| Water (H2O) | 6 |
| Alkyl C-H | 3 |
| C-O single bond | 3 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of geopolymer, 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
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confidence 0.9
Geopolymer
Siyal 等 - 2014 - Effect of NaOH and Water Contents on Solidificatio DOI: 10.4028/www.scientific.net/AMM.625.3 -
confidence 0.9
geopolymer
Sturm 等 - 2016 - Synthesizing one-part geopolymers from rice husk a DOI: 10.1016/j.conbuildmat.2016.08.017 -
confidence 0.9
geopolymer
Characterization of Slag Reprocessing Tailings-Based Geopolymers in Marine Environment DOI: 10.3390/min10090832 -
confidence 0.9
Geopolymer
Zheng 等 - 2023 - Synergistic gel formation in geopolymers of superi DOI: 10.21203/rs.3.rs-1992261/v1 -
confidence 0.7
geopolymer
Blending Plastics Waste with Highly Available Jordanian Kaolin for Preparation of Alkali-Activated Mortars DOI: 10.3390/su142315742 -
confidence 0.7
geopolymer
Sun 等 - 2022 - Experimental Research on the Compression Property DOI: 10.3390/buildings12101596 -
confidence 0.7
geopolymer
Preparation and Characterization of Manganese Slag and Fly Ash-based Geopolymer DOI: 10.1051/matecconf/201713004006 -
confidence 0.6
geopolymer
Lima 等 - 2021 - DOI: 10.1590/0366-69132021673812891 -
confidence 0.5
geopolymer
Taborda-Barraza 等 - 2022 - Evaluation of CNTs and SiC Whiskers Effect on the DOI: 10.3390/ma15176099 -
geopolymer
Rosyidi 等 - 2020 - Investigation of the chemical, strength, adhesion DOI: 10.1016/j.conbuildmat.2020.119364
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