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Li Z, Hou Y, Shen Y, Liu F, Tong M. Efficient As(III) removal from water by ZrO 2 modified covalent organic framework under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133063. [PMID: 38043430 DOI: 10.1016/j.jhazmat.2023.133063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
Adsorption-oxidation is a promising technique to decontaminate As(III) polluted water. In present study, ZrO2-modified covalent organic framework (ZrO2-COF) was fabricated and used to remove arsenic from water under visible light irradiation. The results showed that ZrO2-COF (0.2 g/L) could efficiently capture As(III) (5 mg/L) from water and then oxidize the adsorbed As(III) into less toxic As(V) under visible light irradiation (60 min), achieving the complete decontamination of As(III) polluted water. Based on characterization results and theoretical calculations, we found that in ZrO2-COF composite, ZrO2 served as sites for adsorption of As(III)/the latter transformed As(V), while COF worked as photocatalytic center for As(III) oxidation. Effective As(III) removal could also be achieved by ZrO2-COF under visible light irradiation in complex water chemistry conditions including wide solution pH range (3-11), broad solution ion strength range (1-100 mM), the copresence of natural organic matter (0.1-1 mg/L humic acid) and various coexisting ions in solutions, as well as in real water samples. In addition, we found that ZrO2-COF had excellent reuse performance in 4 consecutive cycles. Our results showed that under visible light irradiation, ZrO2-COF composites could be a promising technique for efficient As(III) removal from water.
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Affiliation(s)
- Zhengmao Li
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing 100871, PR China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing 100871, PR China
| | - Yanghui Hou
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing 100871, PR China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing 100871, PR China
| | - Yutao Shen
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing 100871, PR China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing 100871, PR China
| | - Fuyang Liu
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing 100871, PR China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing 100871, PR China
| | - Meiping Tong
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing 100871, PR China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing 100871, PR China.
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2
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Kumari N, Sareen S, Verma M, Sharma S, Sharma A, Sohal HS, Mehta SK, Park J, Mutreja V. Zirconia-based nanomaterials: recent developments in synthesis and applications. NANOSCALE ADVANCES 2022; 4:4210-4236. [PMID: 36321156 PMCID: PMC9552756 DOI: 10.1039/d2na00367h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/19/2022] [Indexed: 05/30/2023]
Abstract
In the last decade, the whole scientific community has witnessed great advances and progress in the various fields of nanoscience. Among the different nanomaterials, zirconia nanomaterials have found numerous applications as nanocatalysts, nanosensors, adsorbents, etc. Additionally, their exceptional biomedical applications in dentistry and drug delivery, and interesting biological properties, viz. anti-microbial, antioxidant, and anti-cancer activity, have further motivated the researchers to explore their physico-chemical properties using different synthetic pathways. With such an interest in zirconia-based nanomaterials, the present review focuses systematically on different synthesis approaches and their impact on the structure, size, shape, and morphology of these nanomaterials. Broadly, there are two approaches, viz., chemical synthesis which includes hydrothermal, solvothermal, sol-gel, microwave, solution combustion, and co-precipitation methods, and a greener approach which employs bacteria, fungus, and plant parts for the preparation of zirconia nanoparticles. In this review article, the aforementioned methods have been critically analyzed for obtaining specific phases and shapes. The review also incorporates a detailed survey of the applications of zirconia-based nanomaterials. Furthermore, the influence of specific phases, morphology, and the comparison with their counterpart composites for different applications have also been included. Finally, the concluding remarks, prospects and possible scope are given in the last section.
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Affiliation(s)
- Nisha Kumari
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
| | - Shweta Sareen
- Department of Chemistry, Centre of Advanced Studies in Chemistry, Panjab University Chandigarh-160 014 India
| | - Meenakshi Verma
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
- Department of UCRD, Chandigarh University Gharuan Mohali Punjab-140 413 India
| | - Shelja Sharma
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
| | - Ajay Sharma
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
- Department of UCRD, Chandigarh University Gharuan Mohali Punjab-140 413 India
| | - Harvinder Singh Sohal
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
| | - S K Mehta
- Department of Chemistry, Centre of Advanced Studies in Chemistry, Panjab University Chandigarh-160 014 India
| | - Jeongwon Park
- Department of Electrical and Biomedical Engineering, University of Nevada Reno NV 89557 USA
| | - Vishal Mutreja
- Department of Chemistry, University Institute of Science, Chandigarh University Mohali Punjab-140 413 India
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3
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Astle MA, Weilhard A, Rance GA, LeMercier TM, Stoppiello CT, Norman LT, Fernandes JA, Khlobystov AN. Defect Etching in Carbon Nanotube Walls for Porous Carbon Nanoreactors: Implications for CO 2 Sorption and the Hydrosilylation of Phenylacetylene. ACS APPLIED NANO MATERIALS 2022; 5:2075-2086. [PMID: 35571534 PMCID: PMC9098111 DOI: 10.1021/acsanm.1c03803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/21/2022] [Indexed: 06/15/2023]
Abstract
A method of pore fabrication in the walls of carbon nanotubes has been developed, leading to porous nanotubes that have been filled with catalysts and utilized in liquid- and gas-phase reactions. Chromium oxide nanoparticles have been utilized as highly effective etchants of carbon nanotube sidewalls. Tuning the thermal profile and loading of this nanoscale oxidant, both of which influence the localized oxidation of the carbon, have allowed the controlled formation of defects and holes with openings of 40-60 nm, penetrating through several layers of the graphitic carbon nanotube sidewall, resulting in templated nanopore propagation. The porous carbon nanotubes have been demonstrated as catalytic nanoreactors, effectively stabilizing catalytic nanoparticles against agglomeration and modulating the reaction environment around active centers. CO2 sorption on ruthenium nanoparticles (RuNPs) inside nanoreactors led to distinctive surface-bound intermediates (such as carbonate species), compared to RuNPs on amorphous carbon. Introducing pores in nanoreactors modulates the strength of absorption of these intermediates, as they bond more strongly on RuNPs in porous nanoreactors as compared to the nanoreactors without pores. In the liquid-phase hydrosilylation of phenylacetylene, the confinement of Rh4(CO)12 catalyst centers within the porous nanoreactors changes the distribution of the products relative to those observed in the absence of the additional pores. These changes have been attributed to the enhanced local concentration of phenylacetylene and the environment in which the catalytic centers reside within the porous carbon host.
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Affiliation(s)
- Maxwell A. Astle
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Andreas Weilhard
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Graham A. Rance
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Tara M. LeMercier
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Craig T. Stoppiello
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Luke T. Norman
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Jesum Alves Fernandes
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Andrei N. Khlobystov
- School
of Chemistry and Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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Guan X, Srivastava S, Thomas JP, Heinig NF, Kang JS, Rahman MA, Leung KT. Defect-Rich Dopant-Free ZrO 2 Nanoclusters and Their Size-Dependent Ferromagnetism. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48998-49005. [PMID: 33063993 DOI: 10.1021/acsami.0c14706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As an intermediate form of matter between a single atom or molecule and the bulk, nanoclusters (NCs) provide novel properties because of their high surface area-to-volume ratios and distinct physical and electronic structures. These ultrasmall NCs offer a new approach to advance charge-spin manipulation for novel devices, including spintronics and magnetic tunneling junctions. Here, we deposit monosized ZrO2 NCs over a large area by using gas-phase aggregation followed by in situ size selection by a quadrupole mass filter. These size-specific NCs exhibit sub-oxide photoemission features at binding energies that are dependent on the cluster size (from 3 to 9 nm), which are attributed to different oxygen vacancy defect states. These dopant-free ZrO2 NCs also show strongly size-dependent ferromagnetism, which provides distinct advantages in solubility and homogeneity of magnetism when compared to traditional dilute magnetic semiconductors. A defect-band hybridization-induced magnetic polaron model is proposed to explain the origin of this size-dependent ferromagnetism. This work demonstrates a new protocol of magnetization manipulation by size control and promises potential applications based on these defect-rich size-selected NCs.
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Affiliation(s)
- Xiaoyi Guan
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Saurabh Srivastava
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Joseph Palathinkal Thomas
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Nina F Heinig
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Jung-Soo Kang
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Md Anisur Rahman
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
| | - Kam Tong Leung
- WATLab and Department of Chemistry, University of Waterloo, 200 University Ave. W., Waterloo, Ontario N2L 3G1, Canada
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Maleki F, Pacchioni G. Characterization of Acid and Basic Sites on Zirconia Surfaces and Nanoparticles by Adsorbed Probe Molecules: A Theoretical Study. Top Catal 2020. [DOI: 10.1007/s11244-020-01328-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractAcid and basic sites on monoclinic and tetragonal zirconia were investigated at the DFT level by computing IR and NMR properties of adsorbed probe molecules. Regular and stepped ZrO2 surfaces as well as stoichiometric zirconia nanoparticles have been considered. Acidity and basicity were probed by the adsorption of carbon monoxide and pyrrole, respectively. CO adsorption shows a positive shift of the C–O stretching frequency in IR spectra while the C atom of CO is shielded and 13C chemical shifts moves to higher field as a function of the strength of the acid site. For the study of basic sites we used a pyrrole molecule, but the interaction between the pyrrole ring and the surface leads to adsorption modes that cannot be used to titrate the surface basicity. On the other hand, at high coverage the molecule assumes an upright position and the formation of a hydrogen bond of the pyrrole NH group with the oxygen atoms of the surfaces provides a proxy of the basic properties of these sites. In particular, we focus on changes of the N–H IR frequency, 1H, 15N, and 17O NMR chemical shifts and their correlations with the surface basicity. Among the correlations found, that between the N–H stretching frequency of adsorbed pyrrole and the 17O NMR chemical shift of the O ion where the molecule is bound show a nice linear correlation. These two properties can provide useful information about the basic character of various O sites on the surface of zirconia.
Graphic Abstract
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6
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Pacchioni G. Role of Nanostructuring on the Properties of Oxide Materials: The Case of Zirconia Nanoparticles. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali Università Milano Bicocca Via R. Cozzi 55 20125 Milan Italy
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Albanese E, Ruiz Puigdollers A, Pacchioni G. Theory of Ferromagnetism in Reduced ZrO 2-x Nanoparticles. ACS OMEGA 2018; 3:5301-5307. [PMID: 31458739 PMCID: PMC6641900 DOI: 10.1021/acsomega.8b00667] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/04/2018] [Indexed: 06/10/2023]
Abstract
Bulk ZrO2 is both nonreducible and nonmagnetic. Recent experimental results show that dopant-free, oxygen-deficient ZrO2-x nanostructures exhibit a ferromagnetic behavior at room temperature (RT). Here, we provide a comprehensive theoretical foundation for the observed RT ferromagnetism of zirconia nanostructures. ZrO2 nanoparticles containing up to 700 atoms (3 nm) have been studied with the help of density functional theory. Oxygen vacancies in ZrO2 nanoparticles form more easily than in bulk zirconia and result in electrons trapped in 4d levels of low-coordinated Zr ions. Provided the number of these sites exceeds that of excess electrons, the resulting ground state is high spin and the ordering is ferromagnetic. The work provides a general basis to explain magnetism in intrinsically nonmagnetic oxides without the help of dopants.
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Affiliation(s)
- Elisa Albanese
- Dipartimento di Scienza dei
Materiali, Università di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
| | - Antonio Ruiz Puigdollers
- Dipartimento di Scienza dei
Materiali, Università di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei
Materiali, Università di Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy
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Bazhenov A, Kauppinen MM, Honkala K. DFT Prediction of Enhanced Reducibility of Monoclinic Zirconia upon Rhodium Deposition. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:6774-6778. [PMID: 30258520 PMCID: PMC6150675 DOI: 10.1021/acs.jpcc.8b01046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/09/2018] [Indexed: 06/08/2023]
Abstract
Oxides are an important class of materials and are widely used, for example, as supports in heterogeneous catalysis. In a number of industrial catalytic processes, oxide supports actively participate in chemical transformations by releasing lattice oxygen anions. While this is intuitively understood for reducible oxides, the reducibility of irreducible oxides may be modified via nanoengineering or upon inclusion of foreign species. Our calculations predict that the ability of irreducible monoclinic zirconia to release oxygen improves substantially upon deposition of rhodium. Through a comprehensive screening of Rh/ZrO2 with different size of the rhodium species, we find that a Rh adatom and a Rh4 nanocluster have the largest impact on the reducibility of zirconia. With increasing size the effect of rhodium decays. Our findings demonstrate that the phenomenon of enhanced reducibility of irreducible oxides in the presence of metals should be considered when interpreting experimental and computational results, as reactions that involve release of oxygen from an oxide support might be possible for irreducible oxides.
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9
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Ruiz Puigdollers A, Schlexer P, Tosoni S, Pacchioni G. Increasing Oxide Reducibility: The Role of Metal/Oxide Interfaces in the Formation of Oxygen Vacancies. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01913] [Citation(s) in RCA: 423] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonio Ruiz Puigdollers
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Philomena Schlexer
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Sergio Tosoni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
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10
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Ruiz Puigdollers A, Illas F, Pacchioni G. Reduction of Hydrogenated ZrO 2 Nanoparticles by Water Desorption. ACS OMEGA 2017; 2:3878-3885. [PMID: 31457694 PMCID: PMC6641581 DOI: 10.1021/acsomega.7b00799] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/12/2017] [Indexed: 06/10/2023]
Abstract
Reduction of zirconia by water desorption from a hydrogenated surface is the topic of this study. The focus is on the role of nanostructuring the oxide reducibility measured by the cost of formation of oxygen vacancies by water desorption. We have performed density functional theory calculations using the Perdew-Burke-Ernzerhof + U approach and including dispersion forces on the adsorption, dissociation, diffusion of hydrogen on the ZrO2 (101) surface and on Zr16O32, Zr40O80, and Zr80O160 nanoparticles (NPs). The process involves the formation of a precursor state via diffusion of hydrogen on the surface of zirconia. The results show that O vacancy formation via H2O desorption is more convenient than via direct O2 desorption. The formation of an OsH2 surface precursor state to water desorption is the rate-determining step. This step is highly unfavorable on the ZrO2 (101) surface both thermodynamically and kinetically. On the contrary, on zirconia NPs, characterized by the presence of low coordinated ions, water desorption becomes accessible such that even at temperatures close to 450 K the reaction becomes exergonic. The study shows the role of nanostructuring on the chemical and electronic properties of an oxide.
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Affiliation(s)
- Antonio Ruiz Puigdollers
- Dipartimento
di Scienza dei Materiali, Università
Milano—Bicocca, Via R. Cozzi 55, 20125 Milan, Italy
| | - Francesc Illas
- Departament
de Ciència de Materials i Química Física and
Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Gianfranco Pacchioni
- Dipartimento
di Scienza dei Materiali, Università
Milano—Bicocca, Via R. Cozzi 55, 20125 Milan, Italy
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