Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite
文献类型：期刊论文
| 作者 | Ma, Qiyi1,7; Zhao, Ning1,7; Wang, Shun5,6; Zhang, Baifa1; Li, Mengyuan7; Liu, Dong7 ; Zhou, Xiang4; Rudmin, Maxim3; Mulaba-Bafubiandi, Antoine F.2; Yuan, Peng1
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| 刊名 | CLAYS AND CLAY MINERALS
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| 出版日期 | 2024-11-18 |
| 卷号 | 72页码:14 |
| 关键词 | allophane clay mineral interfacial interactions tetracycline adsorption |
| ISSN号 | 0009-8604 |
| DOI | 10.1017/cmn.2024.33 |
| 英文摘要 | With the over-use of tetracycline (TC) and its ultimate accumulation in aquatic systems, the demand for TC removal from contaminated water is increasing due to its severe threat to public health. Clay minerals have attracted great attention as low-cost adsorbents for controlling water pollution. The objective of the present study was to measure the adsorption behavior and mechanisms of TC on allophane, a nanosized clay mineral with a hollow spherical structure; to highlight the advantage of the allophane nanostructure, a further objective was to compare allophane with halloysite and montmorillonite, which have nanostructures that differ from allophane. Structural features and surface physicochemical properties were characterized by transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), zeta potential, N-2-physisorption, and acid-base titration. The adsorption data showed that TC adsorption followed the pseudo-second order and Langmuir models. The adsorption was pH dependent, as all three clay minerals performed better under neutral to weakly alkaline conditions and maintained high adsorption performance in the presence of co-existing Na+/K+/Ca2+/Mg2+ cations. Regeneration of the adsorbent was excellent, with efficiencies exceeding 75% after five recycles. By comparison, allophane always exhibited the greatest adsorption capacity, up to 796 mg g(-1) at similar to pH 9. The TC adsorption on allophane and halloysite was dominated by inner-sphere complexation, together with a small amount of electrostatic adsorption, while that on montmorillonite involved mainly interlayer cation exchange. The findings provide insights into the effects of nanostructures of clay minerals on their TC adsorption performance and highlight the huge potential of allophane as an efficient and inexpensive adsorbent for TC removal. |
| WOS研究方向 | Chemistry ; Geology ; Mineralogy ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001356999000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82043]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Wang, Shun |
| 作者单位 | 1.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 2.Univ Johannesburg, Fac Engn & Built Environm, Mineral Proc & Technol Res Ctr, Sch Min Met & Chem Engn,Dept Met, PBOX 17011, Johannesburg, South Africa 3.Tomsk Polytech Univ, Tomsk 634050, Russia 4.Guangzhou Panyu Polytech, Jewelry Inst, Guangzhou 511483, Peoples R China 5.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 6.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sal, Qinghai Prov Key Lab Geol & Environm Salt Lakes, Xining 810008, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Qiyi,Zhao, Ning,Wang, Shun,et al. Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite[J]. CLAYS AND CLAY MINERALS,2024,72:14. |
| APA | Ma, Qiyi.,Zhao, Ning.,Wang, Shun.,Zhang, Baifa.,Li, Mengyuan.,...&Yuan, Peng.(2024).Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite.CLAYS AND CLAY MINERALS,72,14. |
| MLA | Ma, Qiyi,et al."Comparative study of the adsorption of tetracycline on clay minerals with various nanostructures: allophane, halloysite, and montmorillonite".CLAYS AND CLAY MINERALS 72(2024):14. |
入库方式： OAI收割
来源：广州地球化学研究所
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