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Nobile C, Cozzoli PD. Synthetic Approaches to Colloidal Nanocrystal Heterostructures Based on Metal and Metal-Oxide Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1729. [PMID: 35630951 PMCID: PMC9147683 DOI: 10.3390/nano12101729] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 12/04/2022]
Abstract
Composite inorganic nanoarchitectures, based on combinations of distinct materials, represent advanced solid-state constructs, where coexistence and synergistic interactions among nonhomologous optical, magnetic, chemical, and catalytic properties lay a basis for the engineering of enhanced or even unconventional functionalities. Such systems thus hold relevance for both theoretical and applied nanotechnology-based research in diverse areas, spanning optics, electronics, energy management, (photo)catalysis, biomedicine, and environmental remediation. Wet-chemical colloidal synthetic techniques have now been refined to the point of allowing the fabrication of solution free-standing and easily processable multicomponent nanocrystals with sophisticated modular heterostructure, built upon a programmed spatial distribution of the crystal phase, composition, and anchored surface moieties. Such last-generation breeds of nanocrystals are thus composed of nanoscale domains of different materials, assembled controllably into core/shell or heteromer-type configurations through bonding epitaxial heterojunctions. This review offers a critical overview of achievements made in the design and synthetic elaboration of colloidal nanocrystal heterostructures based on diverse associations of transition metals (with emphasis on plasmonic metals) and transition-metal oxides. Synthetic strategies, all leveraging on the basic seed-mediated approach, are described and discussed with reference to the most credited mechanisms underpinning regioselective heteroepitaxial deposition. The unique properties and advanced applications allowed by such brand-new nanomaterials are also mentioned.
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Affiliation(s)
- Concetta Nobile
- CNR NANOTEC—Institute of Nanotechnology, UOS di Lecce, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy;
| | - Pantaleo Davide Cozzoli
- Department of Mathematics and Physics “Ennio De Giorgi”, c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
- UdR INSTM di Lecce, c/o Campus Ecotekne, University of Salento, Via Arnesano, 73100 Lecce, Italy
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Zheng Y, Zhang J, Ma Z, Zhang G, Zhang H, Fu X, Ma Y, Liu F, Liu M, Huang H. Seeded Growth of Gold-Copper Janus Nanostructures as a Tandem Catalyst for Efficient Electroreduction of CO 2 to C 2+ Products. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201695. [PMID: 35398985 DOI: 10.1002/smll.202201695] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Indexed: 06/14/2023]
Abstract
Gold-copper (Au-Cu) Janus nanostructures (Au-Cu Janus NSs) are successfully prepared using N-oleyl-1,3-propanediamine as capping agent and Cu(acac)2 as the precursor in a typical seeded growth strategy. By preferably depositing Cu atoms on one side of concave cubic Au seeds, the Cu part gradually grows larger as more Cu precursors are added, making the size tuning feasible in the range of 74-156 nm. When employed as an electrocatalyst for electrochemical CO2 reduction (CO2 RR), the Au-Cu Janus NSs display superior performance to Au@Cu core-shell NSs and Cu NPs in terms of C2+ products selectivity (67%) and C2+ partial current density (-0.29 A cm-2 ). Combined experimental verification and theoretical simulations reveal that CO spillover from Au sites to the nearby Cu counterparts would enhance CO coverage and thus promote C-C coupling, highlighting the unique structural advantages of the Au-Cu Janus NSs toward deep reduction of CO2 . The current work provides a facile strategy to fabricate tandem catalyst with a Janus structure and validates its structural advantages toward CO2 RR, which are of critical importance for the rational design of efficient CO2 RR catalyst.
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Affiliation(s)
- Yiqun Zheng
- School of Chemistry, Chemical Engineering, and Materials, Jining University, Qufu, Shandong, 273155, China
| | - Jiawei Zhang
- School of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Zesong Ma
- School of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Gongguo Zhang
- School of Chemistry, Chemical Engineering, and Materials, Jining University, Qufu, Shandong, 273155, China
| | - Haifeng Zhang
- School of Chemistry, Chemical Engineering, and Materials, Jining University, Qufu, Shandong, 273155, China
| | - Xiaowei Fu
- School of Chemistry, Chemical Engineering, and Materials, Jining University, Qufu, Shandong, 273155, China
| | - Yanyun Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Feng Liu
- International Research Center for Renewable Energy, National Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Maochang Liu
- International Research Center for Renewable Energy, National Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Hongwen Huang
- School of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
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Woźniak P, Małecka MA, Kraszkiewicz P, Miśta W, Bezkrovnyi O, Chinchilla L, Trasobares S. Confinement of nano-gold in 3D hierarchically structured gadolinium-doped ceria mesocrystal: synergistic effect of chemical composition and structural hierarchy in CO and propane oxidation. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01214f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gadolinium-doped ceria hierarchical gold catalyst shows four-fold TOF increase compared to undoped non-hierarchical system, proving the synergistic effect of doping and structural hierarchy in propane oxidation.
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Affiliation(s)
- Piotr Woźniak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
| | - Małgorzata A. Małecka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
| | - Piotr Kraszkiewicz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
| | - Włodzimierz Miśta
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
| | - Oleksii Bezkrovnyi
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
| | - Lidia Chinchilla
- Departamento de Ciencia de los Materiales e Ing. Metalúrgica y Química Inorgánica, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510, Cádiz, Spain
| | - Susana Trasobares
- Departamento de Ciencia de los Materiales e Ing. Metalúrgica y Química Inorgánica, Universidad de Cádiz, Campus Universitario de Puerto Real, 11510, Cádiz, Spain
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Zhao Y, Zada A, Yang Y, Pan J, Wang Y, Yan Z, Xu Z, Qi K. Photocatalytic Removal of Antibiotics on g-C 3N 4 Using Amorphous CuO as Cocatalysts. Front Chem 2021; 9:797738. [PMID: 34957051 PMCID: PMC8692713 DOI: 10.3389/fchem.2021.797738] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
Amorphous CuO is considered as an excellent cocatalyst, owing to its large surface area and superior conductivity compared with its crystalline counterpart. The current work demonstrates a facile method to prepare amorphous CuO, which is grown on the surface of graphitic carbon nitride (g-C3N4) and is then applied for the photocatalytic degradation of tetracycline hydrochloride. The prepared CuO/g-C3N4 composite shows higher photocatalytic activities compared with bare g-C3N4. Efficient charge transfer between g-C3N4 and CuO is confirmed by the photocurrent response spectra and photoluminescence spectra. This work provides a facile approach to prepare low-cost composites for the photocatalytic degradation of antibiotics to safeguard the environment.
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Affiliation(s)
- Yue Zhao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
- College of Life Science, Shenyang Normal University, Shenyang, China
| | - Amir Zada
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Yang Yang
- College of Physical Science and Technology, Shenyang Normal University, Shenyang, China
| | - Jing Pan
- College of Life Science, Shenyang Normal University, Shenyang, China
| | - Yan Wang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, China
| | - Zhaoxiong Yan
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
| | - Zhihua Xu
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
| | - Kezhen Qi
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, and Hubei Key Laboratory of Industrial Fume and Pollution Control, Jianghan University, Wuhan, China
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, China
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