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Effect Mechanism of Phosphorous-containing Additives on Carbon Structure Evolution and Biochar Stability Enhancement by Haiping Yang; Yamian Yu; Han Zhang; Wanwan Wang; Jinjiao Zhu; Yingquan Chen; Shihong Zhang; Hanping Chen is a Environmental Science article available to read on EtoBox.
What is Effect Mechanism of Phosphorous-containing Additives on Carbon Structure Evolution and Biochar Stability Enhancement about?
## Abstract The regulation of the pyrolysis process is a key step in increasing the carbon sequestration capacity of biochar. The effect of K~3~PO~4~ addition on the yield, chemical composition, characteristic functional groups, macromolecular skeleton, graphite crystallites, and stability of biochar was studied in this paper using two-dimensional infrared correlation spectroscopy (2D-PCIS), X-ray photoelectron spectroscopy, Raman spectrum, and other characterization methods combined with thermal/chemical oxidation analysis. It is discovered that adding K~3~PO~4~ may effectively minimize the graphitization temperature range and increase biochar's yield, aromaticity, H/C ratio, and proportion of refractory/recalcitrant organic carbon. The 2D-PCIS and Raman analysis revealed that K~3~PO~4~ mostly promoted the dehydrogenation and polycondensation process of the aromatic rings in the char precursor, transforming the amorphous carbon structure of biochar into an ordered turbostratic microcrystalline structure. K~3~PO~4~ enhanced biochar stability mostly at medium-high temperatures (350 ~ 750°C) by stimulating the transformation of unstable structures of biochar to stable carbon-containi
Who reads Effect Mechanism of Phosphorous-containing Additives on Carbon Structure Evolution and Biochar Stability Enhancement?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Haiping Yang; Yamian Yu; Han Zhang; Wanwan Wang; Jinjiao Zhu; Yingquan Chen; Shihong Zhang; Hanping Chen
- Publisher
- Springer Science and Business Media LLC
- Published
- 2024
- Language
- EN
- Field
- Environmental Science (Physical Sciences)