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    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Analytical and Applied Pyrolysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Analytical and Applied Pyrolysis, 154, 2021 DOI: 10.1016/j.jaap.2020.105010

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Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar

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Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar. / Xu, Y.; Bai, T.; Li, Q. et al.
In: Journal of Analytical and Applied Pyrolysis, Vol. 154, 105010, 01.03.2021.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Xu, Y, Bai, T, Li, Q, Yang, H, Yan, Y, Sarkar, B, Lam, SS & Bolan, N 2021, 'Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar', Journal of Analytical and Applied Pyrolysis, vol. 154, 105010. https://doi.org/10.1016/j.jaap.2020.105010

APA

Xu, Y., Bai, T., Li, Q., Yang, H., Yan, Y., Sarkar, B., Lam, S. S., & Bolan, N. (2021). Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar. Journal of Analytical and Applied Pyrolysis, 154, Article 105010. https://doi.org/10.1016/j.jaap.2020.105010

Vancouver

Xu Y, Bai T, Li Q, Yang H, Yan Y, Sarkar B et al. Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar. Journal of Analytical and Applied Pyrolysis. 2021 Mar 1;154:105010. Epub 2020 Dec 30. doi: 10.1016/j.jaap.2020.105010

Author

Xu, Y. ; Bai, T. ; Li, Q. et al. / Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar. In: Journal of Analytical and Applied Pyrolysis. 2021 ; Vol. 154.

Bibtex

@article{800bee8e415f45a99cf2bc7b2fff9c50,
title = "Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar",
abstract = "Phosphorus (P)–engineered biochars (BCP) were prepared via co-pyrolysis of poplar sawdust and monopotassium phosphate (KH2PO4) (10 %, w/w) at 300 ℃, 500 ℃ and 700 ℃ to evaluate their potential lead [Pb(II)] adsorption. Effects of pH, contact time, and initial Pb(II) concentration on the Pb(II) adsorption capacity of the biochars were investigated. The physico-chemical, morphological, porous structure, crystallinity and spectroscopic characteristics of pre- and post-Pb-adsorbed biochars were analyzed to unravel the Pb(II) adsorption mechanism. Results showed that KH2PO4 reacted with biomass carbon to form stable C–P and/or C–O–P groups in BCP, and increased carbon retention and aromaticity of BCP. However, the addition of KH2PO4 led to an adverse effect on porous structure, e.g. surface area of biochars produced at 300 ℃, 500 ℃ and 700 ℃ were decreased by 41.53 %, 80.32 %, and 59.74 %, respectively. Adsorption experiments displayed that BCP produced at 300 ℃ exhibited the highest Pb(II) adsorption capacity (qmax = 154.7 mg g−1), which was almost 6 times higher than the pristine biochar (qmax = 24.3 mg g−1). Potassium polymetaphosphate [(KPO3)n] particles were attached on the surface of BCP, which facilitated the precipitation of Pb(II) to form [Pb(PO3)2]n, Pb5(PO4)3OH and PbHPO4. This study thus demonstrated the effect of pyrolysis temperature on the enhancing removal capability of P-modified biochar for Pb(II) from aqueous solutions.",
keywords = "Adsorption mechanisms, Biomass co-pyrolysis, Heavy metal removal, Modified biochar, Wastewater treatment",
author = "Y. Xu and T. Bai and Q. Li and H. Yang and Y. Yan and B. Sarkar and S.S. Lam and N. Bolan",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Journal of Analytical and Applied Pyrolysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Analytical and Applied Pyrolysis, 154, 2021 DOI: 10.1016/j.jaap.2020.105010",
year = "2021",
month = mar,
day = "1",
doi = "10.1016/j.jaap.2020.105010",
language = "English",
volume = "154",
journal = "Journal of Analytical and Applied Pyrolysis",
issn = "0165-2370",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Influence of pyrolysis temperature on the characteristics and lead(II) adsorption capacity of phosphorus-engineered poplar sawdust biochar

AU - Xu, Y.

AU - Bai, T.

AU - Li, Q.

AU - Yang, H.

AU - Yan, Y.

AU - Sarkar, B.

AU - Lam, S.S.

AU - Bolan, N.

N1 - This is the author’s version of a work that was accepted for publication in Journal of Analytical and Applied Pyrolysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Analytical and Applied Pyrolysis, 154, 2021 DOI: 10.1016/j.jaap.2020.105010

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Phosphorus (P)–engineered biochars (BCP) were prepared via co-pyrolysis of poplar sawdust and monopotassium phosphate (KH2PO4) (10 %, w/w) at 300 ℃, 500 ℃ and 700 ℃ to evaluate their potential lead [Pb(II)] adsorption. Effects of pH, contact time, and initial Pb(II) concentration on the Pb(II) adsorption capacity of the biochars were investigated. The physico-chemical, morphological, porous structure, crystallinity and spectroscopic characteristics of pre- and post-Pb-adsorbed biochars were analyzed to unravel the Pb(II) adsorption mechanism. Results showed that KH2PO4 reacted with biomass carbon to form stable C–P and/or C–O–P groups in BCP, and increased carbon retention and aromaticity of BCP. However, the addition of KH2PO4 led to an adverse effect on porous structure, e.g. surface area of biochars produced at 300 ℃, 500 ℃ and 700 ℃ were decreased by 41.53 %, 80.32 %, and 59.74 %, respectively. Adsorption experiments displayed that BCP produced at 300 ℃ exhibited the highest Pb(II) adsorption capacity (qmax = 154.7 mg g−1), which was almost 6 times higher than the pristine biochar (qmax = 24.3 mg g−1). Potassium polymetaphosphate [(KPO3)n] particles were attached on the surface of BCP, which facilitated the precipitation of Pb(II) to form [Pb(PO3)2]n, Pb5(PO4)3OH and PbHPO4. This study thus demonstrated the effect of pyrolysis temperature on the enhancing removal capability of P-modified biochar for Pb(II) from aqueous solutions.

AB - Phosphorus (P)–engineered biochars (BCP) were prepared via co-pyrolysis of poplar sawdust and monopotassium phosphate (KH2PO4) (10 %, w/w) at 300 ℃, 500 ℃ and 700 ℃ to evaluate their potential lead [Pb(II)] adsorption. Effects of pH, contact time, and initial Pb(II) concentration on the Pb(II) adsorption capacity of the biochars were investigated. The physico-chemical, morphological, porous structure, crystallinity and spectroscopic characteristics of pre- and post-Pb-adsorbed biochars were analyzed to unravel the Pb(II) adsorption mechanism. Results showed that KH2PO4 reacted with biomass carbon to form stable C–P and/or C–O–P groups in BCP, and increased carbon retention and aromaticity of BCP. However, the addition of KH2PO4 led to an adverse effect on porous structure, e.g. surface area of biochars produced at 300 ℃, 500 ℃ and 700 ℃ were decreased by 41.53 %, 80.32 %, and 59.74 %, respectively. Adsorption experiments displayed that BCP produced at 300 ℃ exhibited the highest Pb(II) adsorption capacity (qmax = 154.7 mg g−1), which was almost 6 times higher than the pristine biochar (qmax = 24.3 mg g−1). Potassium polymetaphosphate [(KPO3)n] particles were attached on the surface of BCP, which facilitated the precipitation of Pb(II) to form [Pb(PO3)2]n, Pb5(PO4)3OH and PbHPO4. This study thus demonstrated the effect of pyrolysis temperature on the enhancing removal capability of P-modified biochar for Pb(II) from aqueous solutions.

KW - Adsorption mechanisms

KW - Biomass co-pyrolysis

KW - Heavy metal removal

KW - Modified biochar

KW - Wastewater treatment

U2 - 10.1016/j.jaap.2020.105010

DO - 10.1016/j.jaap.2020.105010

M3 - Journal article

VL - 154

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

SN - 0165-2370

M1 - 105010

ER -