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Banoo M, Sah AK, Roy RS, Kaur K, Kommula B, Sanyal D, Gautam UK. A surface reconstruction route for increasingly improved photocatalytic H 2O 2 production using Sr 2Bi 3Ta 2O 11Cl. Chem Sci 2024:d4sc04866k. [PMID: 39328189 PMCID: PMC11423514 DOI: 10.1039/d4sc04866k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Accepted: 09/12/2024] [Indexed: 09/28/2024] Open
Abstract
Photocatalytic hydrogen peroxide (H2O2) generation is attractive for the chemical industry and energy production. However, photocatalysts generally deteriorate significantly during use to limit their application. Here we present highly active Sr2Bi3Ta2O11Cl single-crystal nanoplates for conversion of O2 to H2O2 using ambient air with a production rate of ∼3 mmol h-1 g-1 (maximum 17.5% photon conversion). Importantly, Sr2Bi3Ta2O11Cl is not only stable during 30 days of H2O2 production but also gets consistently activated to increase the H2O2 yield by >244%, unlike any other catalyst for H2O2 production. Multi-pronged characterization confirms that the synergistic increase in activity originates from in situ surface reconstruction by oxygen-deficient vacancy associate formation that improves (i) surface oxygen adsorption, (ii) sunlight harvesting, and (iii) charge-transfer from the low-valent metal atoms surrounding oxygen vacancies to reactants. The study establishes the prospects of rational defect engineering for realizing non-degrading photocatalysts for realistic H2O2 production.
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Affiliation(s)
- Maqsuma Banoo
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
| | - Arjun Kumar Sah
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
| | - Raj Sekhar Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
| | - Komalpreet Kaur
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
| | - Bramhaiah Kommula
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
| | - Dirtha Sanyal
- Variable Energy Cyclotron Centre 1/AF Bidhannagar Kolkata 700064 India
- Homi Bhabha National Institute Anushakti Nagar Mumbai 400094 India
| | - Ujjal K Gautam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER)-Mohali Sector 81, Mohali, S.A.S. Nagar Punjab 140306 India
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2
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Zhang X, Li X, Yu P, Yu Y, Fan X, Zhang J, Yu Y, Zheng H, Sun Y. Photocatalytic O 2 activation by metal-free carbon nitride nanotube for rapid reactive species generation and organic contaminants degradation. JOURNAL OF HAZARDOUS MATERIALS 2023; 456:131715. [PMID: 37245367 DOI: 10.1016/j.jhazmat.2023.131715] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 05/30/2023]
Abstract
Advanced oxidation processes (AOPs) using oxygen (O2) as an oxidant represent a low-cost and sustainable wastewater treatment process. Herein, a metal-free nanotubular carbon nitride photocatalyst (CN NT) was prepared to activate O2 to degrade organic contaminants. The nanotube structure allowed for sufficient O2 adsorption, while the optical and photoelectrochemical properties enabled photogenerated charge to be efficiently transferred to the adsorbed O2 to trigger the activation process. The developed CN NT/Vis-O2 system based on O2 aeration degraded various organic contaminants and mineralized 40.7% of chloroquine phosphate within 100 min. In addition, the toxicity and environmental risk of treated contaminants were reduced. Mechanistic studies suggested that the enhanced O2 adsorption capacity and fast charge transfer behavior on CN NT surface led to reactive·O2-, 1O2 and h+ generation, each of which played a distinct role in contaminants degradation. Importantly, the proposed process could overcome the interference from water matrices and outdoor sunlight, and the energy and chemical reagent savings reduced the operating cost to about 1.63 US$·m-3. Altogether, this work provides insights into the potential application of metal-free photocatalysts and green O2 activation for wastewater treatment.
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Affiliation(s)
- Xiao Zhang
- Jiangsu Key Laboratory of Industrial Pollution Control and Resource Reuse, School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China.
| | - Xi Li
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Peng Yu
- School of Environmental Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ying Yu
- Jiangsu Key Laboratory of Industrial Pollution Control and Resource Reuse, School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China
| | - Xiulei Fan
- Jiangsu Key Laboratory of Industrial Pollution Control and Resource Reuse, School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China
| | - Jiankun Zhang
- Jiangsu Key Laboratory of Industrial Pollution Control and Resource Reuse, School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China
| | - Yang Yu
- Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Huaili Zheng
- Key laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yongjun Sun
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China.
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3
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Zhao Z, Wang P, Song C, Zhang T, Zhan S, Li Y. Enhanced Interfacial Electron Transfer by Asymmetric Cu-O v -In Sites on In 2 O 3 for Efficient Peroxymonosulfate Activation. Angew Chem Int Ed Engl 2023; 62:e202216403. [PMID: 36646650 DOI: 10.1002/anie.202216403] [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: 11/07/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/18/2023]
Abstract
Enhancing the peroxymonosulfate (PMS) activation efficiency to generate more radicals is vital to promote the Fenton-like reaction activity, however, how to promote the PMS adsorption and accelerate the interfacial electron transfer to boost its activation kinetics remains a great challenge. Herein, we prepared Cu-doped defect-rich In2 O3 (Cu-In2 O3 /Ov ) catalysts containing asymmetric Cu-Ov -In sites for PMS activation in water purification. The intrinsic catalytic activity is that the side-on adsorption configuration of the O-O bond (Cu-O-O-In) at the Cu-Ov -In sites significantly stretches the O-O bond length. Meanwhile, the Cu-Ov -In sites increase the electron density near the Fermi energy level, promoting more and faster electron transfer to the O-O bond for generating more SO4 ⋅- and ⋅OH. The degradation rate constant of tetracycline achieved by Cu-In2 O3 /Ov is 31.8 times faster than In2 O3 /Ov , and it shows the possibility of membrane reactor for practical wastewater treatment.
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Affiliation(s)
- Zhiyong Zhao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Pengfei Wang
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Chunlin Song
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Tao Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
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He N, Guo Z, Zhang C, Yu Y, Tan L, Luo H, Li L, Bahnemann J, Chen H, Jiang F. Bifunctional 2D/2D g-C 3N 4/BiO 2-x nanosheets heterojunction for bacterial disinfection mechanisms under visible and near-infrared light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129123. [PMID: 35596988 DOI: 10.1016/j.jhazmat.2022.129123] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
The efficient deployment of visible and near-infrared (NIR) light for photocatalytic disinfection is of great concern a matter. Herein, we report a specific bifunctional 2D/2D g-C3N4/BiO2-x nanosheets heterojunction, prepared through a self-assembly approach. Delightfully, the obtained 2D/2D heterojunctions exhibited satisfactory photocatalytic disinfection performance towards Escherichia coli K-12 (E. coli K-12) under visible light irradiation, which was credited to the Z-scheme interfacial heterojunction facilitating the migration of photogenerated carries. The photoactivity enhancement driven by NIR light illumination was ascribed to the cooperative synergy effect of photothermal effect and "hot electrons", engineering efficient charge transfer. Intriguingly, the carboxyl groups emerged on g-C3N4 nanosheets contributed a vital role in establishing the enhanced photocatalytic reaction. Moreover, the disinfection mechanism was systematically described. The cell membrane was destroyed, evidenced by the generation of lipid peroxidation reaction and loss of energy metabolism. Subsequently, the damage of defense enzymes and release of intracellular constituents announced the irreversible death of E. coli K-12. Interestingly enough, considerable microbial community shifts of surface water were observed after visible and NIR light exposure, highlighting the critical feature of disinfection process in shaping microbial communities. The authors believe that this work gives a fresh light on the feasibility of heterostructures-enabled disinfection processes.
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Affiliation(s)
- Nannan He
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Zichang Guo
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chen Zhang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yalin Yu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ling Tan
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Haopeng Luo
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lu Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Janina Bahnemann
- Institute of Physics, University of Augsburg, Universitätsstrasse 1, 86159 Augsburg, Germany
| | - Huan Chen
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Fang Jiang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Zhou Y, Liu Q, Li X, Ling L, Zhou Y. Efficient Oxidation of Paracetamol Triggered by Molecular-oxygen Activation at β-cyclodextrin Modified Titanate Nanotube. Chem Asian J 2022; 17:e202200352. [PMID: 35470547 DOI: 10.1002/asia.202200352] [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: 04/05/2022] [Revised: 04/25/2022] [Indexed: 11/09/2022]
Abstract
Titanate nanotube (TNT) was coated with the cyclic oligosaccharides (carboxymethyl-β-cyclodextrin, CM-β-CD) to obtain a photocatalyst (CM-β-CD-TNT) for efficiently activating molecular oxygen and removing the target contaminant. The hydrophobic cavity and the large specific surface area of the photocatalyst provide abundant active sites for activating molecular oxygen. The free radical capture experiment and quenching experiment showed that cyclodextrin could facilitate adsorption and activation of molecular oxygen to produce O2·-. Therefore, compared with the pristine TNT, CM-β-CD-TNT accelerated the oxidation efficiency of paracetamol (APAP) by 3.4 times. Moreover, the ring cleavage reaction induced by CM-β-CD-TNT effectively reduced the acute toxicity of wastewater containing APAP. Furthermore, 100% of bisphenol A (BPA), bisphenol S (BPS), phenol, 2,4-dichlorophen (2,4-DCP), and carbamazepine (CBZ) were degraded by CM-β-CD-TNT after 2.5 h Ultraviolet (UV) light irradiation. This strategy provides a new dimension for the advanced treatment of organic wastewater by organic macrocyclic molecules modified materials.
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Affiliation(s)
- Yi Zhou
- East China University of Science and Technology, School of Resources and Environmental Engineering, 130 Meilong Road, Xuhui District, Shanghai, 200237, Shanghai, CHINA
| | - Qiming Liu
- East China University of Science and Technology, School of Resources and Environmental Engineering, CHINA
| | - Xia Li
- East China University of Science and Technology, School of Resources and Environmental Engineering, CHINA
| | - Liangxiong Ling
- East China University of Science and Technology, School of Resources and Environmental Engineering, CHINA
| | - Yanbo Zhou
- East China University of Science and Technology, 200237, shanghai, CHINA
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6
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Zhou Y, Zou Z, Han Q, Shen Y, Jiang C, Zhang YC, Xiong Y, Ye J, Li Z, Gao W. State-of-the-Art Advancements of Atomically Thin Two-Dimensional Photocatalysts for Energy Conversion. Chem Commun (Camb) 2022; 58:9594-9613. [DOI: 10.1039/d2cc02708a] [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
Excessive use of fossil fuels leads to energy shortages and environmental pollution, threatening human health and social development. As a clean, green, and sustainable technology, generation of renewable energy from...
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7
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Phasayavan W, Japa M, Pornsuwan S, Tantraviwat D, Kielar F, Golovko VB, Jungsuttiwong S, Inceesungvorn B. Oxygen-deficient bismuth molybdate nanocatalysts: Synergistic effects in boosting photocatalytic oxidative coupling of benzylamine and mechanistic insight. J Colloid Interface Sci 2021; 581:719-728. [PMID: 32814195 DOI: 10.1016/j.jcis.2020.07.140] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Herein, bismuth molybdate (Bi2MoO6) nanocatalysts containing oxygen vacancies (OVs) are found to considerably promote the photocatalytic performance toward oxidative coupling of benzylamine to N-benzylidenebenzylamine under visible light irradiation. The structure-activity relationship for this interesting catalyst is revealed for the first time. The oxygen-deficient Bi2MoO6 nanoplatelets (BMO-NPs) are synthesized using ethylene glycol-ethanol solvent mixture as a reaction medium in solvothermal method. A comparison with hydrothermally prepared Bi2MoO6 square-like sheets (BMO-SHs) suggests that the nanoplatelets are much smaller in size and contain higher amount of OVs. Benzylamine conversion over the BMO-NPs is ca. 4.0 times higher than that over the BMO-SHs and ca. 3.8 and ca. 34.6 times higher than that over the commercial benchmark TiO2 P25 and BiVO4 catalysts, respectively. The BMO-NPs achieve more than 80% product yield within 2 h of irradiation regardless of substituents of benzylamine derivatives. The enhanced activity of BMO-NPs is due to synergistic roles of high surface-to-volume ratio and OVs, providing enlarged active area, extended light absorption range and improved charge separation and transfer efficiency as evidenced from UV-vis DRS, BET surface area, photocurrent response, electrochemical impedance spectroscopy, and time-resolved fluorescence decay measurements. EPR-trapping and radical scavenging experiments indicate O2- as a main active species rather than 1O2 and a plausible imine formation mechanism via O2--assisted charge transfer is proposed accordingly. The work offers an alternative facile preparation method to design efficient semiconductor photocatalysts and for the first time reveals a possible benzylamine coupling mechanism over the oxygen-deficient Bi2MoO6 nanocatalyst.
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Affiliation(s)
- Witchaya Phasayavan
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Mattawan Japa
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Soraya Pornsuwan
- Department of Chemistry, Faculty of Science and Center of Excellence for Innovation in Chemistry, Mahidol University, Bangkok 10400, Thailand
| | - Doldet Tantraviwat
- Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Filip Kielar
- Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Vladimir B Golovko
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
| | - Siriporn Jungsuttiwong
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Burapat Inceesungvorn
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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8
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Li J, Bhatt PM, Li J, Eddaoudi M, Liu Y. Recent Progress on Microfine Design of Metal-Organic Frameworks: Structure Regulation and Gas Sorption and Separation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002563. [PMID: 32671894 DOI: 10.1002/adma.202002563] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/13/2020] [Indexed: 05/18/2023]
Abstract
Metal-organic frameworks (MOFs) have emerged as an important and unique class of functional crystalline hybrid porous materials in the past two decades. Due to their modular structures and adjustable pore system, such distinctive materials have exhibited remarkable prospects in key applications pertaining to adsorption such as gas storage, gas and liquid separations, and trace impurity removal. Evidently, gaining a better understanding of the structure-property relationship offers great potential for the enhancement of a given associated MOF property either by structural adjustments via isoreticular chemistry or by the design and construction of new MOF structures via the practice of reticular chemistry. Correspondingly, the application of isoreticular chemistry paves the way for the microfine design and structure regulation of presented MOFs. Explicitly, the microfine tuning is mainly based on known MOF platforms, focusing on the modification and/or functionalization of a precise part of the MOF structure or pore system, thus providing an effective approach to produce richer pore systems with enhanced performances from a limited number of MOF platforms. Here, the latest progress in this field is highlighted by emphasizing the differences and connections between various methods. Finally, the challenges together with prospects are also discussed.
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Affiliation(s)
- Jiantang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Prashant M Bhatt
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Jiyang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Yunling Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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9
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Zhang K, Yang L, Hu Y, Fan C, Zhao Y, Bai L, Li Y, Shi F, Liu J, Xie W. Synthesis of a Gold-Metal Oxide Core-Satellite Nanostructure for In Situ SERS Study of CuO-Catalyzed Photooxidation. Angew Chem Int Ed Engl 2020; 59:18003-18009. [PMID: 32602629 DOI: 10.1002/anie.202007462] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/28/2020] [Indexed: 11/09/2022]
Abstract
This work reports on an assembling-calcining method for preparing gold-metal oxide core-satellite nanostructures, which enable surface-enhanced Raman spectroscopic detection of chemical reactions on metal oxide nanoparticles. By using the nanostructure, we study the photooxidation of Si-H catalyzed by CuO nanoparticles. As evidenced by the in situ spectroscopic results, oxygen vacancies of CuO are found to be very active sites for oxygen activation, and hydroxide radicals (*OH) adsorbed at the catalytic sites are likely to be the reactive intermediates that trigger the conversion from silanes into the corresponding silanols. According to our finding, oxygen vacancy-rich CuO catalysts are confirmed to be of both high activity and selectivity in photooxidation of various silanes.
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Affiliation(s)
- Kaifu Zhang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Ling Yang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Yanfang Hu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Chenghao Fan
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Yaran Zhao
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Lu Bai
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Yonglong Li
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Faxing Shi
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Jun Liu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
| | - Wei Xie
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Rd. 94, Tianjin, 300071, China
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10
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Zhang K, Yang L, Hu Y, Fan C, Zhao Y, Bai L, Li Y, Shi F, Liu J, Xie W. Synthesis of a Gold–Metal Oxide Core–Satellite Nanostructure for In Situ SERS Study of CuO‐Catalyzed Photooxidation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007462] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kaifu Zhang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Ling Yang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yanfang Hu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Chenghao Fan
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yaran Zhao
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Lu Bai
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Yonglong Li
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Faxing Shi
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Jun Liu
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
| | - Wei Xie
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University Weijin Rd. 94 Tianjin 300071 China
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