Physicochemical Properties, Molecular Structures, and Stability of Organo-Calcium Carbonate Complexes: The Critical Role of Carbon Sources, Formation Processes, and OC/Ca Ratios
C NMR analysis. Ternary Ca-carboxylate-polysaccharide colocalization and Ca-polysaccharide were more prominent for maize-derived OCC, whereas wheat-derived OCC was dominated by Ca-carboxylate binding. Adsorption facilitated multilayer OC coatings on calcite, while coprecipitation trapped OC within amorphous calcium carbonate during nucleation. The study provides new insights into carbon-calcium carbonate interactions at the molecular level, which should contribute to long-term OC sequestration in calcareous soils.
Authors
- Yuhang Zhao (ORCID: https://orcid.org/0000-0002-7385-191X)
- Aminu Darma (ORCID: https://orcid.org/0000-0002-8099-9082)
- Xing Xia (ORCID: https://orcid.org/0000-0002-2423-8895)
- J Liu
- Jian Wang (ORCID: https://orcid.org/0000-0001-5184-7023)
- Jie Yang (ORCID: https://orcid.org/0000-0003-4801-7162)
- Yichen Liu (ORCID: https://orcid.org/0009-0004-9379-7764)
- Meili Sun
- Liuying Pang
Institutions
- Anhui Agricultural University (CN)
- University of Saskatchewan (CA)
- Institute of Agricultural Resources and Regional Planning (CN)
- Chinese Academy of Agricultural Sciences (CN)
- Institute of Environment and Sustainable Development in Agriculture (CN)
- China Agricultural University (CN)
- Canadian Light Source (Canada) (CA)
Publication Details
- Journal
- Environmental Science & Technology
- Published
- 2026-04-26
- DOI
- https://doi.org/10.1021/acs.est.5c12270
- Primary Topic
- Calcium Carbonate Crystallization and Inhibition
- Type
- article
- Field-Weighted Citation Impact
- 0.00