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Gholinejad M, Bashirimousavi S, Sansano JM. Novel magnetic bimetallic AuCu catalyst for reduction of nitroarenes and degradation of organic dyes. Sci Rep 2024; 14:5852. [PMID: 38462664 PMCID: PMC10925594 DOI: 10.1038/s41598-024-56559-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/07/2024] [Indexed: 03/12/2024] Open
Abstract
Herein, core-shell magnetic nanoparticles are modified with imidazolium-tagged phosphine and propylene glycol moieties and used for the stabilization of bimetallic AuCu nanoparticles. The structure and morphology of the prepared material are identified with SEM, TEM, XRD, XPS, atomic absorption spectroscopy, Fourier translation infrared spectroscopy, and a vibrating sample magnetometer. This hydrophilic magnetic bimetallic catalyst is applied in the reduction of toxic nitroarenes and reductive degradation of hazardous organic dyes such as methyl orange (MO), methyl red (MR), and rhodamine B (RhB), as well as in the degradation of tetracycline (TC). This magnetic AuCu catalyst indicated superior activity in all three mentioned reactions in comparison with its single metal Au and Cu analogs. This catalyst is recycled for 17 consecutive runs in the reduction of 4-nitrophenol to 4-aminophenol without a significant decrease in catalytic activity and recycled catalyst is characterized.
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Affiliation(s)
- Mohammad Gholinejad
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, P. O. Box 45195-1159, Zanjan, 45137-66731, Iran.
- Research Center for Basic Sciences & Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
| | - Saba Bashirimousavi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, P. O. Box 45195-1159, Zanjan, 45137-66731, Iran
| | - José M Sansano
- Departamento de Química Orgánica, Instituto de Síntesis Orgánica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, 03690, Alicante, Spain
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Jia X, Liu Y, Bhatt P, Perry RS, Parkin IP, Palgrave RG. Mixed valence Sn doped (CH 3NH 3) 3Bi 2Br 9 produced by mechanochemical synthesis. Phys Chem Chem Phys 2023; 25:4563-4569. [PMID: 36722885 DOI: 10.1039/d2cp04487k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Bismuth halides with formula A3Bi2X9, where A is an inorganic or organic cation, show desirable properties as solar absorbers and luminescent materials. Control of structural and electronic dimensionality of these compounds is important to yield materials with good light absorption and charge transport. Here we report mechanochemical reaction of (CH3NH3)3Bi2Br9 with SnBr2 at room temperature in air, yielding a material with strong absorption across the visible region. We attribute this to mixed valence doping of Sn(II) and Sn(IV) on the Bi site. X-Ray diffraction shows no secondary phases, even after heating at 200 °C to improve crystallinity. X-Ray photoelectron spectroscopy suggests the presence of Sn(II) and Sn(IV) states. A similar approach to dope Sn into the iodide analogue (CH3NH3)3Bi2I9 was unsuccessful.
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Affiliation(s)
- Xiaohan Jia
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Yuhan Liu
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK. .,London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK
| | - Prajna Bhatt
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Robin S Perry
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.,ISIS neutron spallation source, Rutherford Appleton Laboratory (RAL), Harwell Campus, Didcot, OX11 0QX, UK
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Robert G Palgrave
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
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Han S, Agbenyeke RE, Lee GY, Park BK, Kim CG, Eom T, Son SU, Han JH, Ryu JY, Chung TM. Novel Heteroleptic Tin(II) Complexes Capable of Forming SnO and SnO 2 Thin Films Depending on Conditions Using Chemical Solution Deposition. ACS OMEGA 2022; 7:1232-1243. [PMID: 35036785 PMCID: PMC8757355 DOI: 10.1021/acsomega.1c05744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
A new heteroleptic complex series of tin was synthesized by the salt metathesis reaction of SnX2 (X = Cl, Br, and I) with aminoalkoxide and various N-alkoxy-functionalized carboxamide ligands. The complexes, [ClSn(dmamp)]2 (1), [BrSn(dmamp)]2 (2), and [ISn(dmamp)]2 (3), were prepared from the salt metathesis reaction of SnX2 with one equivalent of dmamp; [Sn(dmamp)(empa)]2 (4), [Sn(dmamp)(mdpa)]2 (5), and [Sn(dmamp)(edpa)]2 (6) were prepared via the salt metathesis reaction using complex 2 with one equivalent of N-alkoxy-functionalized carboxamide ligand. Complexes 1-5 displayed dimeric molecular structures with tin metal centers interconnected by μ2-O bonding via the alkoxy oxygen atom. The molecular structures of complexes 1-5 showed distorted trigonal bipyramidal geometries with lone pair electrons in the equatorial position. Using complex 6 as a tin precursor, SnO x films were deposited by chemical solution deposition (CSD) and subsequent post-deposition annealing (PDA) at high temperatures. SnO and SnO2 films were selectively obtained under controlled PDA atmospheres of argon and oxygen, respectively. The SnO films featured a tetragonal romarchite structure with high crystallinity and a preferred growth orientation along the (101) plane. They also exhibited a lower transmittance of >52% at 400 nm due to an optical band gap of 2.9 eV. In contrast, the SnO2 films exhibited a tetragonal cassiterite crystal structure and an extremely high transmittance of >97% at 400 nm was observed with an optical band gap of 3.6 eV.
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Affiliation(s)
- Seong
Ho Han
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Chemistry and Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Raphael Edem Agbenyeke
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic
of Korea
| | - Ga Yeon Lee
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Chemistry and Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Bo Keun Park
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic
of Korea
| | - Chang Gyoun Kim
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic
of Korea
| | - Taeyong Eom
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
| | - Seung Uk Son
- Department
of Chemistry and Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Republic of Korea
| | - Jeong Hwan Han
- Department
of Materials Science and Engineering, Seoul
National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Ji Yeon Ryu
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
| | - Taek-Mo Chung
- Thin
Film Materials Research Center, Korea Research
Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic
of Korea
- Department
of Advanced Materials and Chemical Engineering, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic
of Korea
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Chemical Vapor Deposited Mixed Metal Halide Perovskite Thin Films. MATERIALS 2021; 14:ma14133526. [PMID: 34202688 PMCID: PMC8269519 DOI: 10.3390/ma14133526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/09/2021] [Accepted: 06/18/2021] [Indexed: 01/16/2023]
Abstract
In this article, we used a two-step chemical vapor deposition (CVD) method to synthesize methylammonium lead-tin triiodide perovskite films, MAPb1−xSnxI3, with x varying from 0 to 1. We successfully controlled the concentration of Sn in the perovskite films and used Rutherford backscattering spectroscopy (RBS) to quantify the composition of the precursor films for conversion into perovskite films. According to the RBS results, increasing the SnCl2 source amount in the reaction chamber translate into an increase in Sn concentration in the films. The crystal structure and the optical properties of perovskite films were examined by X-ray diffraction (XRD) and UV-Vis spectrometry. All the perovskite films depicted similar XRD patterns corresponding to a tetragonal structure with I4cm space group despite the precursor films having different crystal structures. The increasing concentration of Sn in the perovskite films linearly decreased the unit volume from about 988.4 Å3 for MAPbI3 to about 983.3 Å3 for MAPb0.39Sn0.61I3, which consequently influenced the optical properties of the films manifested by the decrease in energy bandgap (Eg) and an increase in the disorder in the band gap. The SEM micrographs depicted improvements in the grain size (0.3–1 µm) and surface coverage of the perovskite films compared with the precursor films.
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Amine grafted Fe3O4 immobilized graphene oxide as a recyclable and effectual nanocomposite for the regioselective ring opening reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04509-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Elinburg JK, Hyre AS, McNeely J, Alam TM, Klenner S, Pöttgen R, Rheingold AL, Doerrer LH. Formation of monomeric Sn(ii) and Sn(iv) perfluoropinacolate complexes and their characterization by 119Sn Mössbauer and 119Sn NMR spectroscopies. Dalton Trans 2020; 49:13773-13785. [PMID: 33000834 DOI: 10.1039/d0dt02837a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of a series of Sn(ii) and Sn(iv) complexes supported by the highly electron-withdrawing dianionic perfluoropinacolate (pinF) ligand are reported herein. Three analogs of [SnIV(pinF)3]2- with NEt3H+ (1), K+ (2), and {K(18C6)}+ (3) counter cations and two analogs of [SnII(pinF)2]2- with K+ (4) and {K(15C5)2}+ (5) counter cations were prepared and characterized by standard analytical methods, single-crystal X-ray diffraction, and 119Sn Mössbauer and NMR spectroscopies. The six-coordinate SnIV(pinF) complexes display 119Sn NMR resonances and 119Sn Mössbauer spectra similar to SnO2 (cassiterite). In contrast, the four-coordinate SnII(pinF) complexes, featuring a stereochemically-active lone pair, possess low 119Sn NMR chemical shifts and relatively high quadrupolar splitting. Furthermore, the Sn(ii) complexes are unreactive towards both Lewis bases (pyridine, NEt3) and acids (BX3, Et3NH+). Calculations confirm that the Sn(ii) lone pair is localized within the 5s orbital and reveal that the Sn 5px LUMO is energetically inaccessible, which effectively abates reactivity.
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Affiliation(s)
- Jessica K Elinburg
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA.
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Sharma S, Al Hosani S, Kalmouni M, Nair AR, Palanikumar L, Pasricha R, Sadler KC, Magzoub M, Jagannathan R. Supercritical CO 2 Processing Generates Aqueous Cisplatin Solutions with Enhanced Cancer Specificity. ACS OMEGA 2020; 5:4558-4567. [PMID: 32175502 PMCID: PMC7066560 DOI: 10.1021/acsomega.9b03917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Cisplatin is a highly toxic material used clinically as a potent chemotherapeutic. While effective against some cancers, toxicity limits widespread use and low solubility confounds delivery. To formulate a better tolerated and more water-soluble form of cisplatin, we designed a rapid expansion of supercritical solutions (RESS) technique with supercritical carbon dioxide (sc-CO2) to collect nanoclusters of cisplatin embedded in dry ice, in a dual-stage collection vessel cooled to liquid nitrogen temperature. These nanoclusters were solubilized in deionized water and further concentrated (up to 51.3 mM) by a Rotovap process, yielding stable cisplatin solutions with solubility up to 15 × (w/w) greater than that of normal cisplatin. Extensive material characterizations of the solutions were carried out to determine any chemical and/or structural changes of the RESS-processed cisplatin. In vitro cytotoxicity studies of these aqueous solutions showed increased cell viability and early apoptosis compared to equivalent concentrations of standard cisplatin solutions. In vivo studies using zebrafish embryos revealed that standard cisplatin solutions were acutely toxic and caused death of rapidly proliferating cells compared to RESS-processed cisplatin, which were better tolerated with reduced general cell death. Increased water solubility and matched chemical identity of RESS-processed aqueous cisplatin solutions indicate the potential to open up novel drug-delivery routes, which is beneficial for new pharmaceutical design and development.
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Affiliation(s)
| | | | - Mona Kalmouni
- Program
in Biology, New York University, Abu Dhabi, UAE
| | | | | | - Renu Pasricha
- Core
Technology Platform, New York University, Abu Dhabi, UAE
| | | | - Mazin Magzoub
- Program
in Biology, New York University, Abu Dhabi, UAE
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Wu Y, Li F, Lv Z, Xue J. Synthesis and Characterization of X–MOF/AC (X=tin or copper) Catalysts for the Acetylene Hydrochlorination. ChemistrySelect 2019. [DOI: 10.1002/slct.201902017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yibo Wu
- College of Chemistry and Chemical EngineeringTaiyuan University of technology Yingze West Street 79 Taiyuan City TY 030024 China
| | - Fuxiang Li
- College of Chemistry and Chemical EngineeringTaiyuan University of technology Yingze West Street 79 Taiyuan City TY 030024 China
| | - Zhiping Lv
- College of Chemistry and Chemical EngineeringTaiyuan University of technology Yingze West Street 79 Taiyuan City TY 030024 China
| | - Jianwei Xue
- College of Chemistry and Chemical EngineeringTaiyuan University of technology Yingze West Street 79 Taiyuan City TY 030024 China
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