Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Zhao, Ning1,2,3; Ma, Qiyi1,2,3; Wei, Yanfu4; Wang, Shun2,5; Zhong, Xuemin2,3; Zhuang, Guanzheng1; Yuan, Peng1,2
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| Co3O4 anchored on sepiolite surface grooves for superior adsorption of tetracycline from wastewater | |
| Source Publication | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| ISSN | 1383-5866 |
| 2023-10-15 | |
| Volume | 323Pages:11 |
| DOI | 10.1016/j.seppur.2023.124367 |
| Language | 英语 |
| WOS Research Area | Engineering |
| Abstract | Due to the low valence band maximum value, Co3O4 is an outstanding catalyst, but its utilization in adsorption needs to be addressed. In this study, we proposed a novel method for loading aggregation-prone Co3O4 onto sepiolite (Sep) to facilitate tetracycline (TC) adsorption. The XRD, TEM, and FTIR analyses demonstrated that the highly dispersed Co3O4 was successfully anchored on the sepiolite grooves via the Si-OH on the sepiolite sur-face's grooves to the cobalt site in Co3O4. We firstly proposed a view of how metal oxide aggregates are confined to the grooves on the surface of sepiolite (via Si-OH at the edges of the grooves on the sepiolite surface). The ultra-high sorption capacity of Co3O4-Sep is 219.53 mg/g for TC, which is three times that of Sep (70.75 mg/g) and Co3O4 (85.29 mg/g). The kinetic and isotherm results fitting suggested that the adsorption of TC on Co3O4- Sep mainly contributed to the multilayer chemisorption adsorption process. Thermodynamic investigations revealed the spontaneous endothermic reaction of TC adsorption on Co3O4-Sep. Co3O4 strengthened the complexation between the composite and functional groups of TC, significantly increasing TC adsorption ca-pacity. In addition, the Co3O4-Sep retained an extraordinary adsorption capacity with the presence of competing ions, at strongly acidic and alkaline pH values and after three cycles. Therefore, this study offers new perspectives on applying cobalt-based materials and demonstrates the potential for antibiotic adsorption in the prepared composites. |
| Keyword | Adsorption Sepiolite Surface complexation Tetracycline |
| WOS ID | WOS:001036571800001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74542 |
| Collection | 中国科学院矿物学与成矿学重点实验室 |
| Corresponding Author | Yuan, Peng |
| Affiliation | 1.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Met, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Macau Univ Sci & Technol, Macao Environm Res Inst, Natl Observ & Res Stn Coastal Ecol Environm Macao, Macau 999078, Peoples R China 5.Songshan Lake Mat Lab, Neutron Sci Platform, Dongguan 523808, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Ning,Ma, Qiyi,Wei, Yanfu,et al. Co3O4 anchored on sepiolite surface grooves for superior adsorption of tetracycline from wastewater[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,323:11. |
| APA | Zhao, Ning.,Ma, Qiyi.,Wei, Yanfu.,Wang, Shun.,Zhong, Xuemin.,...&Yuan, Peng.(2023).Co3O4 anchored on sepiolite surface grooves for superior adsorption of tetracycline from wastewater.SEPARATION AND PURIFICATION TECHNOLOGY,323,11. |
| MLA | Zhao, Ning,et al."Co3O4 anchored on sepiolite surface grooves for superior adsorption of tetracycline from wastewater".SEPARATION AND PURIFICATION TECHNOLOGY 323(2023):11. |
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