Research Article

Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties

Volume: 1 Number: 1 May 31, 2026

Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties

Abstract

In this study, industrial hemp (Cannabis sativa L.) stalk biomass was thermally converted into biochar at 400 and 700 °C under a nitrogen atmosphere, and the influence of pyrolysis temperature on the structural, morphological, chemical, and thermal alterations of the resulting materials was systematically investigated. Comprehensive characterization was performed using XRD, SEM–EDX, ATR–FTIR, and thermal analysis techniques. XRD results demonstrated that the semi-crystalline cellulose I structure of the raw hemp stalk progressively transformed into an amorphous/turbostratic hard-carbon structure with increasing pyrolysis temperature. The disappearance of characteristic cellulose reflections and the emergence of broad (002) and (100) diffraction bands confirmed the development of hard carbon structure consisting of short-range ordered but non-graphitic domains. SEM observations revealed the gradual collapse of the native tubular lignocellulosic structure and the formation of irregular, fragmented and heterogeneous morphology. EDX analysis indicated a significant increase in carbon content from 59.49% in the raw biomass to 92.74% in the 700 °C biochar, accompanied by a substantial reduction in oxygen content, reflecting advanced carbonization and aromatization. ATR–FTIR spectra further confirmed the decomposition of hydroxyl, aliphatic functional groups, and lignocellulosic structural framework together with the progressive formation of aromatic structures. Thermal analysis data demonstrated that increasing pyrolysis temperature markedly enhanced thermal stability and residual carbon content owing to the formation of condensed aromatic carbon matrices. This study demonstrates that pyrolysis temperature is a critical factor governing the structural and thermal properties of hemp-based biochars, and the findings are expected to provide valuable insights for future studies focused on environmental remediation, adsorption applications, and the development of advanced functional carbon materials.

Keywords

Supporting Institution

No

Project Number

No

Ethical Statement

Ethics committee approval was not required for this study because of there was no study on animals or humans

Thanks

No

References

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Details

Primary Language

English

Subjects

Nanochemistry

Journal Section

Research Article

Publication Date

May 31, 2026

Submission Date

May 6, 2026

Acceptance Date

May 12, 2026

Published in Issue

Year 2026 Volume: 1 Number: 1

APA
Tabak, A., Eren, Ş., Doğan, B., Özdokur, K. V., & Çağlar, B. (2026). Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties. Journal of Hemp Research, 1(1), 1-12. https://izlik.org/JA37NP76ZM
AMA
1.Tabak A, Eren Ş, Doğan B, Özdokur KV, Çağlar B. Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties. JoHR. 2026;1(1):1-12. https://izlik.org/JA37NP76ZM
Chicago
Tabak, Ahmet, Şenol Eren, Bilge Doğan, Kemal Volkan Özdokur, and Bülent Çağlar. 2026. “Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties”. Journal of Hemp Research 1 (1): 1-12. https://izlik.org/JA37NP76ZM.
EndNote
Tabak A, Eren Ş, Doğan B, Özdokur KV, Çağlar B (May 1, 2026) Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties. Journal of Hemp Research 1 1 1–12.
IEEE
[1]A. Tabak, Ş. Eren, B. Doğan, K. V. Özdokur, and B. Çağlar, “Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties”, JoHR, vol. 1, no. 1, pp. 1–12, May 2026, [Online]. Available: https://izlik.org/JA37NP76ZM
ISNAD
Tabak, Ahmet - Eren, Şenol - Doğan, Bilge - Özdokur, Kemal Volkan - Çağlar, Bülent. “Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties”. Journal of Hemp Research 1/1 (May 1, 2026): 1-12. https://izlik.org/JA37NP76ZM.
JAMA
1.Tabak A, Eren Ş, Doğan B, Özdokur KV, Çağlar B. Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties. JoHR. 2026;1:1–12.
MLA
Tabak, Ahmet, et al. “Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties”. Journal of Hemp Research, vol. 1, no. 1, May 2026, pp. 1-12, https://izlik.org/JA37NP76ZM.
Vancouver
1.Ahmet Tabak, Şenol Eren, Bilge Doğan, Kemal Volkan Özdokur, Bülent Çağlar. Temperature-Dependent Carbonization of Hemp Stalk-Derived Biochars: Structural, Morphological and Thermal Properties. JoHR [Internet]. 2026 May 1;1(1):1-12. Available from: https://izlik.org/JA37NP76ZM