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@article{ART003185723},
author={Zhenfei Lv and Chong Lan and Yukun Cao and Mengke Fan and Yanghui Ke and Wenbo Guo and Yixian Yang and Xiulin Shen},
title={One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={1},
pages={234-244},
doi={10.1007/s42823-024-00786-2}

TY - JOUR
AU - Zhenfei Lv
AU - Chong Lan
AU - Yukun Cao
AU - Mengke Fan
AU - Yanghui Ke
AU - Wenbo Guo
AU - Yixian Yang
AU - Xiulin Shen
TI - One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon
JO - Carbon Letters
PY - 2025
VL - 35
IS - 1
PB - Korean Carbon Society
SP - 234
EP - 244
SN - 1976-4251
AB - Porous carbon has been intensively used for microwave absorption in merits of its outstanding specific surface area and dielectric properties. This study investigates the microwave absorption capacity of saturated wood-based activated carbon (SWAC) which was used for methylene blue treatment. The results demonstrate that SWAC, subjected to high temperature calcination, exhibits excellent microwave absorption properties. The structure, composition, micro-morphology, and electromagnetic parameters of SWAC were comprehensively analyzed using various techniques. The findings reveal that after calcination, SWAC possesses a rich pore structure, optimized material impedance matching, and the introduction of N atoms from the organic substance methylene blue into the carbon lattice of SWAC, thereby providing dipole polarization loss. These properties significantly contribute to its microwave absorption performance. The optimal reflection loss of SWAC at 6 GHz reaches −50.29 dB with an effective absorption bandwidth of 2.01 GHz, achieved at a calcination temperature of 700 °C and a paraffin matrix additive amount of 25%. The one-step treatment of SWAC proves to be a competitive and cost-effective method for producing microwave absorbers, which holds significant importance for the recovery of SWAC.
KW - Microwave absorption;Activated carbon;N-doped;Porous carbon;Excellent reflection loss
DO - 10.1007/s42823-024-00786-2
ER -

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang and Xiulin Shen. (2025). One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon. Carbon Letters, 35(1), 234-244.

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang and Xiulin Shen. 2025, "One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon", Carbon Letters, vol.35, no.1 pp.234-244. Available from: doi:10.1007/s42823-024-00786-2

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang, Xiulin Shen "One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon" Carbon Letters 35.1 pp.234-244 (2025) : 234.

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang, Xiulin Shen. One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon. 2025; 35(1), 234-244. Available from: doi:10.1007/s42823-024-00786-2

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang and Xiulin Shen. "One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon" Carbon Letters 35, no.1 (2025) : 234-244.doi: 10.1007/s42823-024-00786-2

Zhenfei Lv; Chong Lan; Yukun Cao; Mengke Fan; Yanghui Ke; Wenbo Guo; Yixian Yang; Xiulin Shen. One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon. Carbon Letters, 35(1), 234-244. doi: 10.1007/s42823-024-00786-2

Zhenfei Lv; Chong Lan; Yukun Cao; Mengke Fan; Yanghui Ke; Wenbo Guo; Yixian Yang; Xiulin Shen. One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon. Carbon Letters. 2025; 35(1) 234-244. doi: 10.1007/s42823-024-00786-2

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang, Xiulin Shen. One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon. 2025; 35(1), 234-244. Available from: doi:10.1007/s42823-024-00786-2

Zhenfei Lv, Chong Lan, Yukun Cao, Mengke Fan, Yanghui Ke, Wenbo Guo, Yixian Yang and Xiulin Shen. "One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon" Carbon Letters 35, no.1 (2025) : 234-244.doi: 10.1007/s42823-024-00786-2