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Zhou Y, Wang X, Yang Y, Jiang L, Wang X, Tang Y, Xiao L. Enhanced copper removal by magnesium modified biochar derived from Alternanthera philoxeroides. ENVIRONMENTAL RESEARCH 2024; 251:118652. [PMID: 38508361 DOI: 10.1016/j.envres.2024.118652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
Adsorption processes are being widely used by various researchers for the removal of heavy metals from waste streams and biochar has been frequently used as an adsorbent. In this study, a MgO-loaded biochar derived from Alternanthera philoxeroides (MAPB) was synthesized for the removal of Cu(II). Compared with other biochar absorbents, MAPB showed a relatively slow adsorption kinetics, but an effective removal of Cu(II) with a maximum sorption capacity of 1, 238 mg/g. The adsorption mechanism of Cu(II) by MAPB was mainly controlled by chemical precipitation as Cu2(OH)3NO3, complexation and ion replacement. Fixed bed column with MAPB packed in same dosage (1, 000 mg) and different bed depth (1.3, 2.6 and 3.9 cm) showed that the increased of bed depth by mixing MAPB with quartz sand could increase the removal of Cu(II). The fitted breakthrough (BT) models showed that mixing MAPB with support media could reduce the mass transfer rate, increase the dynamic adsorption capacity and BT time. Therefore, MAPB adsorbent act as a highly efficient long-term adsorbent for Cu(II) contaminated water treatment may have great ecological and environmental significance.
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Affiliation(s)
- Yingping Zhou
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Xiaoyu Wang
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Yu Yang
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Lijuan Jiang
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Xiaolin Wang
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Yuqiong Tang
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China
| | - Lin Xiao
- School of the Environment, State Key Laboratory for Pollution Control and Resource Reuse, Nanjing University Xianlin Campus, Nanjing, 210023, China.
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Nasseri MA, Shahabi M, Alavi G SA, Allahresani A. A novel, efficient and magnetically recyclable Cu-Ni bimetallic alloy nanoparticle as a highly active bifunctional catalyst for Pd-free Sonogashira and C-N cross-coupling reactions: a combined theoretical and experimental study. RSC Adv 2023; 13:22158-22171. [PMID: 37492518 PMCID: PMC10364789 DOI: 10.1039/d3ra01965a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 07/05/2023] [Indexed: 07/27/2023] Open
Abstract
In this study, a Fe3O4@SiO2@Cyt-Ni/Cu nanocomposite as a novel heterogeneous bimetallic catalyst was synthesized which exhibits efficient performance for the Sonogashira and C-N cross-coupling reactions. The characterization of the catalyst was studied by FT-IR, PXRD, VSM, EDX, TEM, FE-SEM and TGA analyses. The geometry optimization and relative energies of the designed bimetallic complexes were theoretically determined using density functional theory (DFT) calculation at the B3LYP/6-31G**/LANL2DZ level. The catalyst showed good activity in the coupling of various aryl halides with alkynes (Sonogashira reaction) as well as aryl halide with N-heterocycles and achieved coupling products with good to high yields for all of them in a short time. The high catalytic performance could be due to the synergistic effect between Ni and Cu, which causes the reaction to proceed more efficiently. This heterogeneous nanocatalyst could be easily recovered from the reaction mixture with an external magnet and reused for 7 consecutive runs with minimal loss of catalytic activity.
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Affiliation(s)
- Mohammad Ali Nasseri
- Department of Chemistry, Faculty of Sciences, University of Birjand P. O. Box 97175-615 Birjand Iran
| | - Mansoore Shahabi
- Department of Chemistry, Faculty of Sciences, University of Birjand P. O. Box 97175-615 Birjand Iran
| | - Seyyedeh Ameneh Alavi G
- Department of Chemistry, Faculty of Sciences, University of Birjand P. O. Box 97175-615 Birjand Iran
| | - Ali Allahresani
- Department of Chemistry, Faculty of Sciences, University of Birjand P. O. Box 97175-615 Birjand Iran
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Malmir M, Heravi MM, Amiri Z, Kafshdarzadeh K. Magnetic composite of γ-Fe 2O 3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C-C coupling reactions. Sci Rep 2021; 11:22409. [PMID: 34789819 PMCID: PMC8599472 DOI: 10.1038/s41598-021-99679-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/23/2021] [Indexed: 11/29/2022] Open
Abstract
In this article, palladated-magnetic nitrogen doped porous carbon was prepared from nano magnetic γ-Fe2O3 hollow sphere (h-Fe2O3) with high specific surface area and pore volume. To the purpose, initially h-Fe2O3 was prepared and covered with glucose via hydrothermal treatment with subsequent polymerization of organic shell. The polymerization of melamine-resorcinol-formaldehyde (MRF) was achieved in the presence of Cl-functionalized glucose coated h-Fe2O3 (h-Fe2O3@glu-MRF). Next, the prepared magnetic core-shell hollow sphere was palladated followed by carbonization to yield Pd@h-Fe2O3@C introducing more pores in its structure. The resulted compound, Pd@h-Fe2O3@C, was fully characterized, showing that carbonization process expressively increased the specific surface area. The resulted Pd@h-Fe2O3@C was successfully used for promoting C-C coupling reactions under mild reaction conditions as a heterogeneous catalyst and its activity was compared with some prepared control catalysts. This novel catalyst was magnetically separated simply by a magnet bar and recycled and reused at least in five consecutive runs, without considerable loss of its activity. It is note mentioning that, high recyclability with low Pd leaching are another gains of this protocol.
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Affiliation(s)
- Masoume Malmir
- Department of Chemistry, School of Physics and Chemistry, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran.
| | - Zahra Amiri
- Department of Chemistry, School of Physics and Chemistry, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran
| | - Kosar Kafshdarzadeh
- Department of Chemistry, School of Physics and Chemistry, Alzahra University, PO Box 1993891176, Vanak, Tehran, Iran
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Bimetallic Ni/Cu mesoporous silica nanoparticles as an efficient and reusable catalyst for the Sonogashira cross-coupling reactions. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mohjer F, Mofatehnia P, Rangraz Y, Heravi MM. Pd-free, Sonogashira cross-coupling reaction. An update. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121712] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ezzati N, Mahjoub AR, Shokrollahi S, Amiri A, Abolhosseini Shahrnoy A. Novel Biocompatible Amino Acids-Functionalized Three-dimensional Graphene Foams: As the Attractive and Promising Cisplatin Carriers for Sustained Release Goals. Int J Pharm 2020; 589:119857. [PMID: 32898631 DOI: 10.1016/j.ijpharm.2020.119857] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022]
Abstract
Application of amino acids-immobilized porous materials for drug delivery studies has been attracted a lot of attention in the recent years. In this study, amino acids-grafted graphene foams were prepared by anchoring of Alanine (Ala), Cysteine (Cys) and Glycine (Gly) amino acids on the surface of graphene oxide (GO) nanostructures and used as the novel biocompatible carriers to control releasing of the cisplatin as the cytotoxic anticancer drug. The characterization of prepared compounds was done by the FT-IR, Raman, TGA, N2 adsorption-desorption isotherms, SEM, and TEM techniques. Adsorption and in vitro release behavior of amino acids-functionalized foams were studied using ICP standard method. The results show that the drug loading amount and the drug releasing rate are significantly enhanced upon functionalization process. The Ala-Foam sample with the larger surface area and pore volume showed a higher loading content (4.53%) than other samples. In addition, the MTT test on the two MCF-7 and HepG2 human cancer cell lines exhibited an acceptable biocompatibility and sustainable drug releasing from the carriers up to 48 h, leading to the dosage frequency decrease and the patient compliance improvement.
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Affiliation(s)
- Nasim Ezzati
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box. 14155-4383, Tehran, Iran.
| | - Ali Reza Mahjoub
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box. 14155-4383, Tehran, Iran.
| | - Sudabeh Shokrollahi
- Department of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran.
| | - Ahmad Amiri
- Department of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran.
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