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Zhou R, Wu D, Ma J, Ruan L, Feng Y, Ban C, Zhou K, Cai S, Gan LY, Zhou X. Boosting CO 2 piezo-reduction via metal-support interactions in Au/ZnO based catalysts. J Colloid Interface Sci 2024; 661:512-519. [PMID: 38308891 DOI: 10.1016/j.jcis.2024.01.169] [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: 12/28/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/05/2024]
Abstract
Confronting the challenge of climate change necessitates innovative approaches for the reduction of CO2 emissions. Metal-support interaction has been widely demonstrated to enable greatly improved performances in thermal-catalytic, photocatalytic and electrocatalytic CO2 reduction. However, its applicability and specifically its role in the emerging piezo-electrocatalytic CO2 reduction are unknown, severely hampering the utilizations of piezo-electrocatalysis in CO2 conversion. Herein, by adopting Au particles supported on ZnO (Au/ZnO) as a paradigm, it is found that the metal-support interaction can remarkably improve the separation and transfer of piezo-carriers and enhance CO2 adsorption. As a result, Au/ZnO demonstrates a substantially boosted activity for piezo-electrocatalytic CO2 reduction and the optimal sample exhibits a 37.3% increase in CO yield compared to the pristine ZnO. The integration of metal-support interactions opens a new avenue to the design of advanced piezo-electrocatalysts for CO2 reduction.
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Affiliation(s)
- Rundong Zhou
- Corpus Christi College, University of Cambridge, Cambridgeshire CB2 1RH, United Kingdom
| | - Di Wu
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Jiangping Ma
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Lujie Ruan
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Yajie Feng
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Chaogang Ban
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Kai Zhou
- Analytical and Testing Center, Chongqing University, Chongqing 401331, China
| | - Songjiang Cai
- Chongqing DEPU Foreign Language School, Chongqing 401320, China
| | - Li-Yong Gan
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China.
| | - Xiaoyuan Zhou
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China; Analytical and Testing Center, Chongqing University, Chongqing 401331, China.
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Mohite SV, Kim S, Bae J, J Jeong H, Kim TW, Choi J, Kim Y. Defects Healing of the ZnO Surface by Filling with Au Atom Catalysts for Efficient Photocatalytic H 2 Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304393. [PMID: 37712098 DOI: 10.1002/smll.202304393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/28/2023] [Indexed: 09/16/2023]
Abstract
Healed defects on photocatalysts surface and their interaction with plasmonic nanoparticles (NPs) have attracted attention in H2 production process. In this study, surface oxygen vacancy (Vo ) defects are created on ZnO (Vo -ZnO) NPs by directly pyrolyzing zeolitic imidazolate framework. The surface defects on Vo -ZnO provide active sites for the diffusion of single Au atoms and as nucleation sites for the formation of Au NPs by the in situ photodeposition process. The electronically healed surface defects by single Au atoms help in the formation of a heterojunction between the ZnO and plasmonic Au NPs. The formed Au/Vo -Au:ZnO-4 heterojunction prolongs photoelectron lifetimes and increases donor charge density. Therefore, the optimized photocatalysts of Au/Vo -Au:ZnO-4 has 21.28 times higher H2 production rate than the pristine Vo -ZnO under UV-visible light in 0.35 m Na2 SO4 and 0.25 m Na2 SO3 . However in 0.35 m Na2 S and 0.25 m Na2 SO3 , the H2 production rate is 25.84 mmole h-1 g-1 . Furthermore, Au/Vo -Au:ZnO-4 shows visible light activity by generating hot carries via induced surface plasmonic effects. It has 48.58 times higher H2 production rate than pristine Vo -ZnO. Therefore, this study infers new insight for defect healing mediated preparation of Au/Vo -Au:ZnO heterojunction for efficient photocatalytic H2 production.
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Affiliation(s)
- Santosh V Mohite
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Shinik Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jiyoung Bae
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Hee J Jeong
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Tae Woong Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Yeonho Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
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Stefan M, Popa A, Toloman D, Leostean C, Barbu-Tudoran L, Falamas A. Enhanced Plasmonic Photocatalysis of Au-Decorated ZnO Nanocomposites. INORGANICS 2023. [DOI: 10.3390/inorganics11040157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023] Open
Abstract
The rapid development of technological processes in various industrial fields has led to surface water pollution with different organic pollutants, such as dyes, pesticides, and antibiotics. In this context, it is necessary to find modern, environmentally friendly solutions to avoid the hazardous effects on the aquatic environment. The aim of this paper is to improve the photocatalytic performance of zinc oxide (ZnO) nanoparticles by using the plasmonic resonance induced by covering them with gold (Au) nanoparticles. Therefore, we evaluate the charge carriers’ behavior in terms of optical properties and reactive oxygen species (ROS) generation. The ZnO-Au nanocomposites were synthesized through a simple chemical protocol in multiple steps. ZnO nanoparticles (NPs) approximately 20 nm in diameter were prepared by chemical precipitation. ZnO-Au nanocomposites were obtained by decorating the ZnO NPs with Au at different molar ratios through a reduction process. X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM) confirmed the simultaneous presence of hexagonal ZnO and cubic Au phases. The optical investigations evidenced the existence of a band-gap absorption peak of ZnO at 372 nm, as well as a surface plasmonic band of Au nanoparticles at 573 nm. The photocatalytic tests indicated increased photocatalytic degradation of the Rhodamine B (RhB) and oxytetracycline (OTC) pollutants under visible light irradiation in the presence of ZnO-Au nanocomposites (60–85%) compared to ZnO NPs (43%). This behavior can be assigned to the plasmonic resonance and the synergetic effects of the individual constituents in the composite nanostructures. The spin-trapping experiments showed the production of ROS while the nanostructures were in contact with the pollutants. This study introduces new strategies to adjust the efficiency of photocatalytic devices by the combination of two types of nanostructures with synergistic functionalities into one single entity. ZnO-Au nanocomposites can be used as stable photocatalysts with excellent reusability and possible industrial applications.
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Affiliation(s)
- Maria Stefan
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Adriana Popa
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Dana Toloman
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Cristian Leostean
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
- Electron Microscopy Laboratory “Prof. C. Craciun”, Faculty Biology & Geology, Babes-Bolyai University, 5-7 Clinicilor St., 400006 Cluj-Napoca, Romania
| | - Alexandra Falamas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania
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Feng Q, Ren Y, Sun Z, Liu J, Zhou Y, Tang D. Porous ZnO Microspheres Grafted with Poly‐(
N
‐isopropylacrylamide) via SI‐ATRP: Reversible Temperature‐Controlled Switching of Photocatalysis**. ChemistrySelect 2022. [DOI: 10.1002/slct.202103656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qian Feng
- State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Yonghui Ren
- Jiangxi Brother Pharmaceutical Co. Ltd Jiujiang 332700 China
| | - Zhaojie Sun
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Jia Liu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Yuze Zhou
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Dongyan Tang
- State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
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Yoo Y, Kim M, Kim B. Epitaxially Integrated Hierarchical ZnO/Au/SrTiO 3 and ZnO/Ag/Al 2O 3 Heterostructures: Three-Dimensional Plasmo-Photonic Nanoarchitecturing. NANOMATERIALS 2021; 11:nano11123262. [PMID: 34947608 PMCID: PMC8706281 DOI: 10.3390/nano11123262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/17/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022]
Abstract
In this study, we fabricated three-dimensional (3D) hierarchical plasmo-photonic nanoarchitectures by epitaxially integrating semiconducting zinc oxide (ZnO) nanowires with vertically oriented plasmonic gold (Au) and silver (Ag) nanoplatforms and investigated their growth mechanisms in detail. We synthesized 3D hierarchical Au–ZnO nanostructures via a vapor–solid mechanism leading to the epitaxial growth of ZnO nanowires on vertically oriented single-crystalline Au nanowires on a strontium titanate (SrTiO3) substrate. The elongated half-octahedral Au nanowires with a rhombus cross-section were transformed into thermodynamically stable elongated cuboctahedral Au nanowires with a hexagonal cross-section during the reaction. After the transformation, ZnO thin films with six twinned domains were formed on the side planes of the elongated cuboctahedral Au nanowire trunks, and six ZnO nanowire branches were grown on the ZnO thin films. Further, 3D hierarchical Ag–ZnO nanostructures were obtained via the same vapor–solid mechanism leading to the epitaxial growth of ZnO nanowires on vertically oriented Ag nanoplates on an aluminum oxide (Al2O3) substrate. Therefore, the growth mechanism developed herein can be generally employed to fabricate 3D hierarchical plasmo-photonic nanoarchitectures.
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Affiliation(s)
- Youngdong Yoo
- Department of Chemistry, Ajou University, Suwon 16499, Korea
- Correspondence: (Y.Y.); (B.K.)
| | - Minjung Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea;
| | - Bongsoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Korea;
- Correspondence: (Y.Y.); (B.K.)
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Idrus-Saidi SA, Tang J, Yang J, Han J, Daeneke T, O’Mullane AP, Kalantar-Zadeh K. Liquid Metal-Based Route for Synthesizing and Tuning Gas-Sensing Elements. ACS Sens 2020; 5:1177-1189. [PMID: 32223132 DOI: 10.1021/acssensors.0c00233] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
There is a strong demand for developing tunable and facile routes for synthesizing gas-sensitive semiconducting compounds. The concept of synthesizing micro- and nanoparticles of metallic compounds in a tunable process, which relies on liquid metals, is presented here. This is a liquid-based ultrasonication procedure within which additional metallic elements (In, Sn, and Zn) are incorporated into liquid Ga that is sonicated in a secondary solvent. We investigate liquid metal sonication in dimethyl sulfoxide (DMSO) and water to show their impact on the size, morphology, and crystal structure of the particulated products. The synthesized materials are annealed to investigate their responses to model reducing (H2) and oxidizing (NO2) gas species. The preparation process in DMSO gives rise to predominantly monoclinic Ga2O3 crystals which are favorable for gas sensing, while the emergence of rhombohedral Ga2O3 phases from the water sonication process led to inactive samples. The ease of tunability without hazardous precursors during the synthesis procedure is demonstrated. The route presented here can be uniquely employed for designing and engineering on-demand functional materials for sensing applications.
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Affiliation(s)
- Shuhada A. Idrus-Saidi
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Jianbo Tang
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Jiong Yang
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Jialuo Han
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
| | - Torben Daeneke
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Anthony P. O’Mullane
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia
| | - Kourosh Kalantar-Zadeh
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney, New South Wales 2052, Australia
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