Efficient adsorption and reduction of Cr(VI) from aqueous solution by Santa Barbara Amorphous-15 (SBA-15) supported Fe/Ni bimetallic nanoparticles
文献类型：期刊论文
| 作者 | Xing, Xiaowei1,3; Ren, Xuemei3 ; Alharbi, Njud S.2; Chen, Changlun3
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| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2023 |
| 卷号 | 629 |
| ISSN号 | 0021-9797 |
| 关键词 | Chromium Removal Bimetal nZVI Reduction SBA-15 |
| DOI | 10.1016/j.jcis.2022.08.171 |
| 通讯作者 | Chen, Changlun(clchen@ipp.ac.cn) |
| 英文摘要 | Nanoscale zero-valent iron (nZVI or Fe0) can rapidly reduce Cr(VI) contaminants in the water environ-ment, but the agglomeration and passivation of the Fe0 system have adverse effects on its application. In this study, a novel mesoporous Santa Barbara Amorphous-15 supported Fe/Ni bimetallic composite (SBA-15@Fe/Ni) is proposed to remove Cr(VI). The proposed material can enhance the stability and removal capacity of the nZVI system. The results show that the unique six-way through-hole structure of SBA-15 provides a place for the dispersion of Fe0 particles. Meanwhile, SBA-15 effectively alleviates the accumulation of Fe0 particles. The removal efficiency of SBA-15@Fe/Ni is better than two single sys-tems (SBA-15 and Fe/Ni). The removal efficiency of SBA-15@Fe/Ni towards Cr(VI) can reach 97.62% after 60 min at pH 4.0. SBA-15@Fe/Ni still maintains excellent performance in the presence of various compet-itive ions (Cl-, SO42-, CO32-, NO3-). At 298 K, the maximum removal capacity of SBA-15@Fe/Ni towards Cr(VI) is 180.99 mg/g. The possible removal process of SBA-15@Fe/Ni towards Cr(VI) is divided into the follow-ing steps: First, Cr(VI) is attracted into the vicinity of the SBA-15@Fe/Ni channel by the electrostatic attraction; Second, the reduction of Cr(VI) occurs after contacting with the Fe/Ni system, and its driving force mainly comes from nZVI and Fe(II); Furthermore, the introduction of Ni can promote Cr(VI) reduc-tion through electron transfer and catalytic hydrogenation. In conclusion, adopting SBA-15@Fe/Ni to treat chromium contamination is an effective and promising approach.(c) 2022 Elsevier Inc. All rights reserved. |
| WOS关键词 | ZERO-VALENT IRON ; REMOVAL ; BIOCHAR ; NITRATE ; REACTIVITY ; CHROMIUM |
| 资助项目 | National Natural Science Foundation of China[22276194] ; National Natural Science Foundation of China[12027813] ; Natural Science Foundation of Anhui Province[2008085MB46] ; Youth Innovation Promotion Association CAS[2019438] ; Presidential Foundation of Hefei Institutes of Physical Science , Chinese Academy of Sciences[YZJJZX202019] ; Institutional Fund Projects[IFPDP- 237-22] ; Ministry of Education and King Abdulaziz University (KAU) , Jeddah, Saudi Arabia |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000860462200002 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Youth Innovation Promotion Association CAS ; Presidential Foundation of Hefei Institutes of Physical Science , Chinese Academy of Sciences ; Institutional Fund Projects ; Ministry of Education and King Abdulaziz University (KAU) , Jeddah, Saudi Arabia |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129119]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Changlun |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230000, Peoples R China 2.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah 21589, Saudi Arabia 3.Chinese Acad Sci, Inst Plasma Phys, HFIPS, POB 1126, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Xiaowei,Ren, Xuemei,Alharbi, Njud S.,et al. Efficient adsorption and reduction of Cr(VI) from aqueous solution by Santa Barbara Amorphous-15 (SBA-15) supported Fe/Ni bimetallic nanoparticles[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2023,629. |
| APA | Xing, Xiaowei,Ren, Xuemei,Alharbi, Njud S.,&Chen, Changlun.(2023).Efficient adsorption and reduction of Cr(VI) from aqueous solution by Santa Barbara Amorphous-15 (SBA-15) supported Fe/Ni bimetallic nanoparticles.JOURNAL OF COLLOID AND INTERFACE SCIENCE,629. |
| MLA | Xing, Xiaowei,et al."Efficient adsorption and reduction of Cr(VI) from aqueous solution by Santa Barbara Amorphous-15 (SBA-15) supported Fe/Ni bimetallic nanoparticles".JOURNAL OF COLLOID AND INTERFACE SCIENCE 629(2023). |
入库方式： OAI收割
来源：合肥物质科学研究院
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