Efficient adsorption and separation of norfloxacin from water by allophane aerogel microspheres

doi:10.1016/j.seppur.2023.124808

	Ma, Qiyi 1,2,3; Zhao, Ning 1,2; Wei, Yanfu 4; Wang, Shun 2,5; Liu, Dong1,2 ; Yuan, Peng3
	Efficient adsorption and separation of norfloxacin from water by allophane aerogel microspheres
Source Publication	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
	2023-12-15
Volume	327 Pages:10
DOI	10.1016/j.seppur.2023.124808
Language	英语
WOS Research Area	Engineering
Abstract	Norfloxacin contamination in the water environment has garnered international attention due to the dire risks it poses to ecosystems and public health. Aerogel can be easily extracted or separated from aqueous solutions, and it can be used for norfloxacin practical wastewater treatment. In this study, allophane and beta-cyclodextrin were prepared as copolymers, and sodium alginate as a cross-linking agent to prepare allophane aerogel microspheres (A-M) for the efficient separation of norfloxacin in an aqueous environment. The A-M provides a highly three-dimensional porous structure, allowing norfloxacin to effectively penetrate the aerogels and enhancing their adsorption capacity. At pH = 7, the adsorption capacity of allophane microspheres on norfloxacin was 529 mg/g, which was 429 and 209 mg/g higher than that of beta-cyclodextrin and allophane, respectively. Adsorption capacity after 5 regeneration cycles was 78.5% of the initial adsorbents. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis showed that the key adsorption mechanisms of A-M are surface complexation and hydrophobic interaction. Therefore, the prepared A-M materials are excellent adsorbents for the effective separation and removal of norfloxacin from the aquatic environment.
Keyword	Adsorption Allophane beta-cyclodextrin Aerogel Norfloxacin
WOS ID	WOS:001070042000001
Indexed By	SCI
Citation statistics	Cited Times:7[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.gig.ac.cn/handle/344008/74882
Collection	中国科学院矿物学与成矿学重点实验室
Corresponding Author	Yuan, Peng
Affiliation	1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 4.Macau Univ Sci & Technol, Macao Environm Res Inst, Natl Observat & Res Stn Coastal Ecol Environm Maca, Macau 999078, Peoples R China 5.Songshan Lake Mat Lab, Neutron Sci Platform, Dongguan 523808, Peoples R China
Recommended Citation GB/T 7714	Ma, Qiyi,Zhao, Ning,Wei, Yanfu,et al. Efficient adsorption and separation of norfloxacin from water by allophane aerogel microspheres[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,327:10.
APA	Ma, Qiyi,Zhao, Ning,Wei, Yanfu,Wang, Shun,Liu, Dong,&Yuan, Peng.(2023).Efficient adsorption and separation of norfloxacin from water by allophane aerogel microspheres.SEPARATION AND PURIFICATION TECHNOLOGY,327,10.
MLA	Ma, Qiyi,et al."Efficient adsorption and separation of norfloxacin from water by allophane aerogel microspheres".SEPARATION AND PURIFICATION TECHNOLOGY 327(2023):10.

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