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Volume 16
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10.3390/ma16041528
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Article

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

by
Qian Liu
1,
Wen-Yong Deng
1,
Lie-Yuan Zhang
2,
Chang-Xiang Liu
1,*,
Wei-Wei Jie
1,
Rui-Xuan Su
1,
Bin Zhou
1,
Li-Min Lu
1,
Shu-Wu Liu
1 and
Xi-Gen Huang
1
1
Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China
2
Technical Center of Nanchang Customs, Nanchang 330038, China
*
Author to whom correspondence should be addressed.
Materials 2023, 16(4), 1528; https://doi.org/10.3390/ma16041528
Submission received: 24 December 2022 / Revised: 19 January 2023 / Accepted: 7 February 2023 / Published: 11 February 2023
(This article belongs to the Special Issue Novel Nanomaterials for Energy Storage and Catalysis)
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Abstract

Biomass-derived raw bamboo charcoal (BC), NaOH-impregnated bamboo charcoal (BC-I), and magnetic bamboo charcoal (BC-IM) were fabricated and used as bio-adsorbents and Fenton-like catalysts for methylene blue removal. Compared to the raw biochar, a simple NaOH impregnation process significantly optimized the crystal structure, pore size distribution, and surface functional groups and increase the specific surface area from 1.4 to 63.0 m2/g. Further magnetization of the BC-I sample not only enhanced the surface area to 84.7 m2/g, but also improved the recycling convenience due to the superparamagnetism. The maximum adsorption capacity of BC, BC-I, and BC-IM for methylene blue at 328 K was 135.13, 220.26 and 497.51 mg/g, respectively. The pseudo-first-order rate constants k at 308 K for BC, BC-I, and BC-IM catalytic degradation in the presence of H2O2 were 0.198, 0.351, and 1.542 h−1, respectively. A synergistic mechanism between adsorption and radical processes was proposed.
Keywords: bamboo charcoal; methylene blue; adsorption; degradation; kinetics bamboo charcoal; methylene blue; adsorption; degradation; kinetics

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MDPI and ACS Style

Liu, Q.; Deng, W.-Y.; Zhang, L.-Y.; Liu, C.-X.; Jie, W.-W.; Su, R.-X.; Zhou, B.; Lu, L.-M.; Liu, S.-W.; Huang, X.-G. Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal. Materials 2023, 16, 1528. https://doi.org/10.3390/ma16041528

AMA Style

Liu Q, Deng W-Y, Zhang L-Y, Liu C-X, Jie W-W, Su R-X, Zhou B, Lu L-M, Liu S-W, Huang X-G. Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal. Materials. 2023; 16(4):1528. https://doi.org/10.3390/ma16041528

Chicago/Turabian Style

Liu, Qian, Wen-Yong Deng, Lie-Yuan Zhang, Chang-Xiang Liu, Wei-Wei Jie, Rui-Xuan Su, Bin Zhou, Li-Min Lu, Shu-Wu Liu, and Xi-Gen Huang. 2023. "Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal" Materials 16, no. 4: 1528. https://doi.org/10.3390/ma16041528

APA Style

Liu, Q., Deng, W.-Y., Zhang, L.-Y., Liu, C.-X., Jie, W.-W., Su, R.-X., Zhou, B., Lu, L.-M., Liu, S.-W., & Huang, X.-G. (2023). Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal. Materials, 16(4), 1528. https://doi.org/10.3390/ma16041528

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