A novel hybrid nanoadsorbent for effective Hg2+ adsorption based on zeolitic imidazolate framework (ZIF-90) assembled onto poly acrylic acid capped Fe3O4 nanoparticles and cysteine
文献类型：期刊论文
| 作者 | Nosike, Elvis Ikechukwu; Jiang, Zhenqi; Miao, Lijing; Akakuru, Ozioma Udochukwu; Yuan, Bo; Wu, Shasha; Zhang, Yuenan; Zhang, Yujie; Wu, Aiguo |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 392 |
| 关键词 | METAL-ORGANIC FRAMEWORK EFFICIENT REMOVAL THIOL-FUNCTIONALIZATION COLORIMETRIC DETECTION AQUEOUS-SOLUTIONS COPPER IONS MERCURY WATER MOLECULES CARBON |
| DOI | 10.1016/j.jhazmat.2020.122288 |
| 英文摘要 | This research reports a new mercury adsorbent in which Fe3O4 as a core was embedded into the shell of ZIF-90 in a one-pot synthesis and the subsequent post synthesis modification (PSM) of its surface with cysteine covalently, via a Schiff's base reaction. Poly acrylic acid (PAA) was capped on the surface of nanoparticles to prevent agglomeration of the nanoparticles. In addition, - COOH groups of PAA coordinated with Zn2+ of ZIF-90 and this provided the platform for ZIF-90 to grow on the nanoparticles forming the core-shell structure. Based on the strong interactions between the thiol groups on the adsorbent and mercury ions as elucidated by the XPS analysis, the as-synthesized adsorbent showed selectivity for Hg2+. The sorbent exhibited high adsorption capacity of 900 mg g(-1) towards Hg2+ as calculated at pH 4 and the adsorption kinetics followed pseudo-second-order kinetics model better. The Hg2+ loaded adsorbent was easily regenerated and it maintained about 70 % efficiency after the third use. Low-cost, readily available and green materials, facile preparation, efficient removal and the breakthrough in three times recyclability give the novel ZIF-90 based hybrid nanoadsorbent wide prospects in the field of environmental remediation as a good adsorbent for Hg2+ removal in wastewater. |
| 学科主题 | Engineering ; Environmental Sciences & Ecology |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20726]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Zhang, YJ 2.Wu, AG (corresponding author), Chinese Acad Sci, Cixi Inst Biomed Engn, CAS Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, 1219 Zhong Guan West Rd, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Nosike, Elvis Ikechukwu,Jiang, Zhenqi,Miao, Lijing,et al. A novel hybrid nanoadsorbent for effective Hg2+ adsorption based on zeolitic imidazolate framework (ZIF-90) assembled onto poly acrylic acid capped Fe3O4 nanoparticles and cysteine[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,392. |
| APA | Nosike, Elvis Ikechukwu.,Jiang, Zhenqi.,Miao, Lijing.,Akakuru, Ozioma Udochukwu.,Yuan, Bo.,...&Wu, Aiguo.(2020).A novel hybrid nanoadsorbent for effective Hg2+ adsorption based on zeolitic imidazolate framework (ZIF-90) assembled onto poly acrylic acid capped Fe3O4 nanoparticles and cysteine.JOURNAL OF HAZARDOUS MATERIALS,392. |
| MLA | Nosike, Elvis Ikechukwu,et al."A novel hybrid nanoadsorbent for effective Hg2+ adsorption based on zeolitic imidazolate framework (ZIF-90) assembled onto poly acrylic acid capped Fe3O4 nanoparticles and cysteine".JOURNAL OF HAZARDOUS MATERIALS 392(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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