Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix

The development of adsorption methods for the remediation of antibiotics pollution in water is hindered by the lack of high-performance sorbents. In this study, a nanofiber carbon aerogel was prepared using bacterial cellulose and its adsorption performances for three common antibiotics (norfloxacin...

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Autores principales:	Mengdan Wei, Huabao Zheng, Tainan Zeng, Jian Yang, Xiaobo Fang, Cheng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption performance antibiotics bacterial cellulose carbon aerogel regeneration wastewater treatment Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/3b7d775e8ce04c8ea5c4755b713d5d05
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spelling	oai:doaj.org-article:3b7d775e8ce04c8ea5c4755b713d5d052021-11-06T11:26:06ZPorous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix0273-12231996-973210.2166/wst.2021.374https://doaj.org/article/3b7d775e8ce04c8ea5c4755b713d5d052021-10-01T00:00:00Zhttp://wst.iwaponline.com/content/84/8/1896https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The development of adsorption methods for the remediation of antibiotics pollution in water is hindered by the lack of high-performance sorbents. In this study, a nanofiber carbon aerogel was prepared using bacterial cellulose and its adsorption performances for three common antibiotics (norfloxacin, sulfamethoxazole, and chloramphenicol) in water were evaluated. The as-prepared nanofiber carbon aerogel showed a higher adsorption capacity toward target antibiotics compared to other adsorbents reported in the literature. The maximum adsorption capacities for norfloxacin, sulfamethoxazole, and chloramphenicol were 1,926, 1,264, and 525 mg/g, respectively at 298 K. Notably, the nanofiber carbon aerogel was able to adsorb 80% of the equilibrium adsorption capacity within 1 min and reach equilibrium within 15 min. After five regeneration cycles, the adsorption capacity still reached 1,166, 847, and 428 mg/g for norfloxacin, sulfamethoxazole, and chloramphenicol, respectively. The characterization results showed that the carbon aerogel exhibited a high specific surface area (1,505 m2/g) and a layered porous network structure. Furthermore, the mechanistic study reveals that the enhanced antibiotic adsorption by the as-prepared nanofiber carbon aerogel was attributed to the pore filling effect, hydrogen bonding, hydrophobic effect, electrostatic interaction, and π-π interactions. Overall, these results imply that low-cost and green nanofiber carbon aerogels may be promising adsorbents for the remediation of antibiotic-contaminated wastewater. The materials prepared from natural and readily available bacterial cellulose can adsorb antibiotics efficiently, which provides a reference for the development of adsorbent materials using natural substances. HIGHLIGHTS The porous carbon aerogel precursor is green, natural and readily available.; Rapid rate and high antibiotics adsorption capacity was observed.; The comprehensive adsorption mechanism of porous carbon aerogel was explored.;Mengdan WeiHuabao ZhengTainan ZengJian YangXiaobo FangCheng ZhangIWA Publishingarticleadsorption performanceantibioticsbacterial cellulosecarbon aerogelregenerationwastewater treatmentEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 8, Pp 1896-1907 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption performance antibiotics bacterial cellulose carbon aerogel regeneration wastewater treatment Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption performance antibiotics bacterial cellulose carbon aerogel regeneration wastewater treatment Environmental technology. Sanitary engineering TD1-1066 Mengdan Wei Huabao Zheng Tainan Zeng Jian Yang Xiaobo Fang Cheng Zhang Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
description	The development of adsorption methods for the remediation of antibiotics pollution in water is hindered by the lack of high-performance sorbents. In this study, a nanofiber carbon aerogel was prepared using bacterial cellulose and its adsorption performances for three common antibiotics (norfloxacin, sulfamethoxazole, and chloramphenicol) in water were evaluated. The as-prepared nanofiber carbon aerogel showed a higher adsorption capacity toward target antibiotics compared to other adsorbents reported in the literature. The maximum adsorption capacities for norfloxacin, sulfamethoxazole, and chloramphenicol were 1,926, 1,264, and 525 mg/g, respectively at 298 K. Notably, the nanofiber carbon aerogel was able to adsorb 80% of the equilibrium adsorption capacity within 1 min and reach equilibrium within 15 min. After five regeneration cycles, the adsorption capacity still reached 1,166, 847, and 428 mg/g for norfloxacin, sulfamethoxazole, and chloramphenicol, respectively. The characterization results showed that the carbon aerogel exhibited a high specific surface area (1,505 m2/g) and a layered porous network structure. Furthermore, the mechanistic study reveals that the enhanced antibiotic adsorption by the as-prepared nanofiber carbon aerogel was attributed to the pore filling effect, hydrogen bonding, hydrophobic effect, electrostatic interaction, and π-π interactions. Overall, these results imply that low-cost and green nanofiber carbon aerogels may be promising adsorbents for the remediation of antibiotic-contaminated wastewater. The materials prepared from natural and readily available bacterial cellulose can adsorb antibiotics efficiently, which provides a reference for the development of adsorbent materials using natural substances. HIGHLIGHTS The porous carbon aerogel precursor is green, natural and readily available.; Rapid rate and high antibiotics adsorption capacity was observed.; The comprehensive adsorption mechanism of porous carbon aerogel was explored.;
format	article
author	Mengdan Wei Huabao Zheng Tainan Zeng Jian Yang Xiaobo Fang Cheng Zhang
author_facet	Mengdan Wei Huabao Zheng Tainan Zeng Jian Yang Xiaobo Fang Cheng Zhang
author_sort	Mengdan Wei
title	Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
title_short	Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
title_full	Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
title_fullStr	Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
title_full_unstemmed	Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
title_sort	porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/3b7d775e8ce04c8ea5c4755b713d5d05
work_keys_str_mv	AT mengdanwei porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix AT huabaozheng porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix AT tainanzeng porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix AT jianyang porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix AT xiaobofang porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix AT chengzhang porouscarbonaerogelderivedfrombacterialcellulosewithprominentpotentialforefficientremovalofantibioticsfromtheaquaticmatrix
_version_	1718443661130203136

Porous carbon aerogel derived from bacterial cellulose with prominent potential for efficient removal of antibiotics from the aquatic matrix

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