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El Hajam M, Idrissi Kandri N, Özdemir S, Plavan G, Ben Hamadi N, Boufahja F, Zerouale A. Statistical Design and Optimization of Cr (VI) Adsorption onto Native and HNO 3/NaOH Activated Cedar Sawdust Using AAS and a Response Surface Methodology (RSM). Molecules 2023; 28:7271. [PMID: 37959691 PMCID: PMC10649725 DOI: 10.3390/molecules28217271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023] Open
Abstract
The removal of heavy metals from wastewater has become the subject of considerable interest at present. Thus, the use of novel adsorbents that are highly efficient is of critical importance for the removal of Cr (VI) ions from aqueous media. The adsorption of Cr (VI) ions from aqueous solutions by a new adsorbent, cedar wood sawdust, and the optimization of its adsorption parameters, were investigated in this study. Cedar wood sawdust was used in its native and HNO3/NaOH chemically modified forms as new low-cost sorbents to remove Cr (VI) ions from aqueous solutions in a batch system. The adsorption conditions were analyzed via response surface methodology. The RSM results showed that the optimal adsorption conditions yielding the best response were an adsorbent mass of 2 g for native Cedar and 1.125 g for its activated form, a metal concentration of 150 mg/L for native Cedar and 250 mg/L for activated, a temperature of 50 °C, a pH of 1, and a contact time of 67.5 min. At optimum adsorption conditions, the maximum adsorption capacities and the adsorption yields were 23.64 mg/g and 84% for native Cedar and 48.31 mg/g and 99% for activated Cedar, respectively.
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Affiliation(s)
- Maryam El Hajam
- School of Forest Resources and Advanced Structures and Composites Center, University of Maine, Orono, ME 04469, USA;
- Processes, Materials and Environment Laboratory (PMEL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
| | - Noureddine Idrissi Kandri
- Signals Systems and Components Laboratory (SSCL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, Mersin 33343, Turkey;
| | - Gabriel Plavan
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University, Bvd. Carol I. No. 20A, 700505 Iasi, Romania;
| | - Naoufel Ben Hamadi
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia;
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Abdelaziz Zerouale
- Processes, Materials and Environment Laboratory (PMEL), Faculty of Sciences and Techniques, Sidi Mohammed Ben Abdellah University, Road Imouzzer, Fez BP 2202, Morocco;
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Lin R, Li J, Jing X, Guo M, Ren G, Qin H, Yao Z, Wan Y, Song W, Zeng H, Yang F, Zhao D, Hu K. Enhanced selective separation of vanadium(V) and chromium(VI) using the CeO 2 nanorod containing oxygen vacancies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27415-1. [PMID: 37155091 DOI: 10.1007/s11356-023-27415-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/30/2023] [Indexed: 05/10/2023]
Abstract
Adsorption of vanadium from wastewater defends the environment from toxic ions and contributes to recover the valuable metal. However, it is still challenging for the separation of vanadium (V5+) and chromium (Cr6+) because of their similar properties. Herein, a kind of CeO2 nanorod containing oxygen vacancies is facilely synthesized which displays ultra-high selectivity of V5+ against various competitive ions (i.e., Fe, Mn, Cr, Ni, Cu, Zn, Ga, Cd, Ba, Pb, Mg, Be, and Co). Moreover, a large separation factor (SFV/Cr) of 114,169.14 for the selectivity of V5+ is achieved at the Cr6+/V5+ ratio of 80 with the trace amount of V5+ (~ 1 mg/L). The results show that the process of V5+ uptake is the monolayer homogeneous adsorption and is controlled by external and intraparticle diffusions. In addition, it also shows that V5+ is reduced to V3+ and V4+ and then formation of V-O complexation. This work offers a novel CeO2 nanorod material for efficient separation of V5+ and Cr6+ and also clarifies the mechanism of the V5+ adsorption on the CeO2 surface.
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Affiliation(s)
- Ruixi Lin
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Jiarong Li
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Xuequan Jing
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Meina Guo
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
| | - Guoqing Ren
- Jiangxi ECO-ADVANCE Technology Co., Ltd, Ganzhou, 341000, People's Republic of China
| | - Haonan Qin
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
| | - Zhangwei Yao
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
| | - Yinhua Wan
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
- Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou, 341000, People's Republic of China
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Weijie Song
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China
- Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou, 341000, People's Republic of China
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Huifeng Zeng
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
| | - Feifei Yang
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
| | - Da Zhao
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China
| | - Kang Hu
- Key Laboratory of Rare Earth, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, People's Republic of China.
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, People's Republic of China.
- Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou, 341000, People's Republic of China.
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Li P, Gao M, Wang D, Li Z, Liu Y, Liu X, Li H, Sun Y, Liu Y, Niu X, Zhong B, Wu ZG, Guo X. Optimizing Vanadium Redox Reaction in Na 3V 2(PO 4) 3 Cathodes for Sodium-Ion Batteries by the Synergistic Effect of Additional Electrons from Heteroatoms. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9475-9485. [PMID: 36758114 DOI: 10.1021/acsami.2c22038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Na3V2(PO4)3 (NVP) is one of the most potential cathode materials for sodium-ion batteries (SIBs), but its actual electrochemical performance is limited by the defects of large electron and ion transfer resistance. Multicomponent design is considered an effective method to optimize the conductivity of NVP electrodes. Therefore, Cr and Si are added in NVP to form a multielement component of Na3V1.9Cr0.1(PO4)2.9(SiO4)0.1 (NVP-CS). It is confirmed that 3d electrons of Cr are beneficial for improving the conductivity and increasing the average potential by activating V4+/V5+. Theoretical calculations show that the introduction of Si changes the electronic structure of V and O, thus promoting the electrochemical reaction of V3+/V4+ to exert higher capacity. Due to the coordination of the two elements, a lower migration barrier is obtained in NVP-CS. Specifically, NVP-CS retains the advantages of single-doped electrodes very well (capacity retention of 90% after 300 cycles at 1 C and a high capacity of 94.1 mA h g-1 at 5 C, compared to NVP with only 82.6% capacity retention at 1 C and 59.4 mA h g-1 at 5 C). The excellent electrochemical performance results show that NVP can be successfully optimized by the introduction of Cr and Si. This work can provide some inspiration for multicomponent material research of cathode materials.
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Affiliation(s)
- Ping Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Meng Gao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Dong Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhuangzhi Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yalan Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaohong Liu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Haoyu Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yan Sun
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Yang Liu
- School of Materials Science and Engineering, Henan Normal University, XinXiang 453007, China
| | - Xiaobin Niu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Benhe Zhong
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhen-Guo Wu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515041, China
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Xiao H, Chen L, Qin Z, Yin R, Weng D, Wang Z, Luo D. Separation of vanadium, tungsten and molybdenum from spent SCR catalysts solution by solvent extraction with primary amine N1923. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 150:301-309. [PMID: 35878529 DOI: 10.1016/j.wasman.2022.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/28/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
The large accumulation of spent selective catalytic reduction (SCR) catalysts cause waste of resources and environmental pollution. In this study, an efficient method is proposed to separate vanadium (V), molybdenum (Mo), and tungsten (W) from the leachate of hydrometallurgical treated spent SCR catalysts. First, V and W could be preferentially extracted by acidified primary amine N1923 and left Mo in the raffinate, then V and W were stripped selectively by sulfur acid and ammonia solution, respectively, leading to the separation of V, Mo, and W. Optimized experimental conditions were achieved as Initial pH of 6.7, phase ratio O/A of 1, contact time of 4 min and the concentration of primary amine N1923 was 10 % (v/v), under which V and W were extracted as high as 99.91 % and 96.86 % for the two-stage counter-current extraction, respectively, limiting Mo co-extraction to 5.84 %. The stripping ratio of V and W were up to 95.34 % and 95.50 % with sulfuric acid and ammonia, respectively and the organic phase was remained to recycle. The mechanism and process of extraction were analyzed using the slope method and the FT-IR spectra. In addition, the equations for the stripping of V and W with sulfuric acid and ammonia were deducted. Compared to traditional solvent extraction and chemical precipitation, this one-step-extraction-two-steps-stripping process shorten steps and is more efficient to separate three metals ions of V, Mo and W.
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Affiliation(s)
- Haibing Xiao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Liang Chen
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhifeng Qin
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Rentao Yin
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Dingsong Weng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhenghao Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Dongmei Luo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
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