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Chu YZ, Hoover M, Ward P, Lau KC. First-principles study of MXene properties with varying hydrofluoric acid concentration. iScience 2024; 27:108784. [PMID: 38292429 PMCID: PMC10826293 DOI: 10.1016/j.isci.2024.108784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/30/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024] Open
Abstract
With varying hydrofluoric acid (HF) concentrations under three etching conditions, we presented a comparative study of the effects of both the ordered and randomly ternary mixed terminated Ti3C2Tx surfaces with a wide variation of O/OH/F stoichiometry on the thermodynamic stability and electronic properties. Regardless of the HF concentration, an OH-rich surface is found to be thermodynamically stable and the electrical conductivity of Ti3C2Tx is substantially affected by the OH concentration. The charge density difference and electron localization function demonstrated a significant electron localization at the hydroxyl group on the O/OH/F mixed terminated surface, which could yield a locally induced dipole on the surface that renders favorable reaction sites on the functionalized surface. In addition, a large tunability in the work function (ΔΦ ∼ 3.5 eV) is predicted for Ti3C2Tx. These findings provide a pathway for strategically tuning the electronic and structural properties of Ti3C2 MXenes etched with HF.
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Affiliation(s)
- Yi Zhi Chu
- Department of Physics, Michigan Technological University, Houghton, MI 49931, USA
- Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA
| | - Megan Hoover
- Advanced Modeling and Simulations, Savannah River National Laboratory, Aiken, SC 29803, USA
| | - Patrick Ward
- Materials Technology and Energy Division, Savannah River National Laboratory, Aiken, SC 29803, USA
| | - Kah Chun Lau
- Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA
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2
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Cheng Y, Zhou J. Single-atom catalysts supported on two-dimensional tetragonal transition metal chalcogenides for hydrogen and oxygen evolution. iScience 2024; 27:108788. [PMID: 38292431 PMCID: PMC10825685 DOI: 10.1016/j.isci.2024.108788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/28/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024] Open
Abstract
Single-atom catalysts (SACs) offer maximum metal atom utilization and high catalytic performance. Transition metal atoms on two-dimensional (2D) materials are effective for improving electrocatalytic performance. However, few studies exist on SACs supported on 2D tetragonal transition metal chalcogenides (TMX) for OER and HER. We report a detailed theoretical study using DFT calculations on SACs supported on TMX monolayers, denoted as TMA@TMBX. Our findings demonstrate that seven TMA@TMBX electrocatalysts surpass IrO2 (ηOER = 0.56 V), with four TMA@TMBX exhibiting a reduced OER overpotential compared to RuO2 (ηOER = 0.42 V). Additionally, four TMA@TMBX exhibit higher HER performance than Pt (111) (ηHER = 0.10 V). We ultimately identified three SACs with high bifunctional HER/OER activity: Co@NiSe, Rh@NiTe, and Co@NiS. This study on TMA@TMBX provides insights for enhancing the HER and OER activities of SACs supported on 2D materials, which could have significant implications in clean and renewable energy.
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Affiliation(s)
- Yumeng Cheng
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Jia Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
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Shekhar P, Datta Devulapalli VS, Reji R, Singh HD, Jose A, Singh P, Torris A, Vinod CP, Tokarz JA, Mahle JJ, Peterson GW, Borguet E, Vaidhyanathan R. COF-supported zirconium oxyhydroxide as a versatile heterogeneous catalyst for Knoevenagel condensation and nerve agent hydrolysis. iScience 2023; 26:108088. [PMID: 37942004 PMCID: PMC10628716 DOI: 10.1016/j.isci.2023.108088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/25/2023] [Accepted: 09/26/2023] [Indexed: 11/10/2023] Open
Abstract
A composite of catalytic Lewis acidic zirconium oxyhydroxides (8 wt %) and a covalent organic framework (COF) was synthesized. X-ray diffraction and infrared (IR) spectroscopy reveal that COF's structure is preserved after loading with zirconium oxyhydroxides. Electron microscopy confirms a homogeneous distribution of nano- to sub-micron-sized zirconium clusters in the COF. 3D X-ray tomography captures the micron-sized channels connecting the well-dispersed zirconium clusters on the COF. The crystalline ZrOx(OH)y@COF's nanostructure was model-optimized via simulated annealing methods. Using 0.8 mol % of the catalyst yielded a turnover number of 100-120 and a turnover frequency of 160-360 h-1 for Knoevenagel condensation in aqueous medium. Additionally, 2.2 mol % of catalyst catalyzes the hydrolysis of dimethyl nitrophenyl phosphate, a simulant of nerve agent Soman, with a conversion rate of 37% in 180 min. The hydrolytic detoxification of the live agent Soman is also achieved. Our study unveils COF-stabilized ZrOx(OH)y as a new class of zirconium-based Lewis + Bronsted-acid catalysts.
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Affiliation(s)
- Pragalbh Shekhar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
| | | | - Reshma Reji
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
| | - Himan Dev Singh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
| | - Aleena Jose
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
| | - Piyush Singh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
| | - Arun Torris
- CSIR-NCL, Polymer Science and Engineering (PSE), Pune 411008, India
| | | | - John A. Tokarz
- U.S. Army DEVCOM Chemical Biological Center, Aberdeen Proving Ground, MD 21010, USA
| | - John J. Mahle
- U.S. Army DEVCOM Chemical Biological Center, Aberdeen Proving Ground, MD 21010, USA
| | - Gregory W. Peterson
- U.S. Army DEVCOM Chemical Biological Center, Aberdeen Proving Ground, MD 21010, USA
| | - Eric Borguet
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Ramanathan Vaidhyanathan
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
- Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India
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4
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Liu T, Song G, Liu X, Chen Z, Shen Y, Wang Q, Peng Z, Wang G. Insights into the mechanism in electrochemical CO 2 reduction over single-atom copper alloy catalysts: A DFT study. iScience 2023; 26:107953. [PMID: 37810218 PMCID: PMC10558810 DOI: 10.1016/j.isci.2023.107953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/17/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023] Open
Abstract
Copper single-atom alloy catalysts (M@Cu SAAs) have shown great promise for electrochemical CO2 reduction reaction (CO2RR). However, a clear understanding of the CO2RR process on M@Cu SAAs is still lacking. This study uses density functional theoretical (DFT) calculations to obtain a comprehensive mechanism and the origin of activity of M@Cu SAAs. The importance of the adsorption mode of M@Cu is revealed: key intermediates either adsorbed in the adjacent hollow site around Cu atoms (AD mode) or adsorbed directly on the top site of M (SE mode). AD mode generally exhibits finely tuned binding strengths of key intermediates, which significantly enhances the activity of the catalysts. Increasing the coverage of ∗CO on the M@Cu with SE mode leads to relocation of the active site, resulting in improved activity of C2 products. The insights gained in this work have significant implications for rational design strategy toward efficient CO2RR electrocatalysts.
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Affiliation(s)
- Tianfu Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Guohui Song
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- Dalian Jiaotong University, Dalian 116028, China
| | - Xiaoju Liu
- School of Chemistry and Chemical Engineering, YuLin University, YuLin, Shannxi 71900, China
| | - Zhou Chen
- College of Materials, Xiamen University, Xiamen, Fujian 361005, China
| | - Yu Shen
- Dalian Jiaotong University, Dalian 116028, China
| | - Qi Wang
- Dalian Jiaotong University, Dalian 116028, China
| | - Zhangquan Peng
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Guoxiong Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
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5
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Guo Y, Wang S, Geng R, Wang P, Li S, Dong M, Qin Z, Wang J, Fan W. Enhancement of the dimethyl ether carbonylation activation via regulating acid sites distribution in FER zeolite framework. iScience 2023; 26:107748. [PMID: 37701576 PMCID: PMC10494173 DOI: 10.1016/j.isci.2023.107748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/12/2023] [Accepted: 08/24/2023] [Indexed: 09/14/2023] Open
Abstract
The carbonylation of dimethyl ether (DME) with CO is a key step for ethanol synthesis from syngas, but traditional mordenite (MOR) zeolite shows low catalytic stability. Herein, various FER zeolite nanosheets were prepared with four types of organic templates. The catalytic performance of FER in DME carbonylation is strongly dependent on the location of strong acid site in framework, which can be effectively regulated by altering organic template. FER-MORP sample synthesized with morpholine shows the highest DME conversion of 53%, thus, giving a methyl acetate space-time yield (STYMA) of 0.889 mmol g-1 h-1. DFT calculation, NH3-IR, 1H/27Al/29Si MAS NMR, and in situ DRIFTS results indicate that morpholine directs more Al species, or strong Brønsted acid sites (BAS), to locate in 8-membered ring (8-MR) channels, which not only enhances carbonylation activity but also suppresses formation of coke species. The catalytic performance is well maintained within 4 repeated recycles (∼460 h).
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Affiliation(s)
- Yanxia Guo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sen Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
| | - Rui Geng
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pengfei Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
| | - Shiying Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
| | - Mei Dong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
| | - Zhangfeng Qin
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weibin Fan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
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6
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Li Y, Luo H, Wang S, Li L, Li G, Dai W. Cobalt nanoparticles-catalyzed aerobic oxygenation and esterification of alkynes via C≡C bonds cleavage. iScience 2023; 26:107608. [PMID: 37664625 PMCID: PMC10470385 DOI: 10.1016/j.isci.2023.107608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/16/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
An unprecedented efficient protocol is developed for the oxidative cleavage of C≡C bonds in alkynes to produce structure-diverse esters using heterogeneous cobalt nanoparticles as catalyst with molecular oxygen as the oxidant. A diverse set of mono- and multisubstituted aromatic and aliphatic alkynes can be effectively cleaved and converted into the corresponding esters. Characterization analysis and control experiments indicate high surface area and pore volume, as well as nanostructured nitrogen-doped graphene-layer coated cobalt nanoparticles are possibly responsible for excellent catalytic activity. Mechanistic studies reveal that ketones derived from alkynes under oxidative conditions are formed as intermediates, which subsequently are converted to esters through a tandem sequential process. The catalyst can be recycled up to five times without significant loss of activity.
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Affiliation(s)
- Yujing Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P.R. China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Huihui Luo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Shuo Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Lei Li
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, P.R. China
| | - Guosong Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Wen Dai
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
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7
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Cao J, Lin Y, Zhou T, Wang W, Zhang Q, Pan B, Jiang W. Molecular oxygen-assisted in defect-rich ZnO for catalytic depolymerization of polyethylene terephthalate. iScience 2023; 26:107492. [PMID: 37609634 PMCID: PMC10440522 DOI: 10.1016/j.isci.2023.107492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/22/2023] [Accepted: 07/23/2023] [Indexed: 08/24/2023] Open
Abstract
Polyethylene terephthalate (PET) is the most produced polyester plastic; its waste has a disruptive impact on the environment and ecosystem. Here, we report a catalytic depolymerization of PET into bis(2-hydroxyethyl) terephthalate (BHET) using molecule oxygen (O2)-assisted in defect-rich ZnO. At air, the PET conversion rate, the BHET yield, and the space-time yield are 3.5, 10.6, and 10.6 times higher than those in nitrogen, respectively. Combining structural characterization with the results of DFT calculations, we conclude that the (100) facet of defect-rich ZnO nanosheets conducive to the formation of reactive oxygen species (∗O2-) and Zn defect, promotes the PET breakage of the ester bond and thus complete the depolymerization processed. This approach demonstrates a sustainable route for PET depolymerization by molecule-assisted defect engineering.
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Affiliation(s)
- Jingjing Cao
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yuheng Lin
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Tianpeng Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Wei Wang
- Department of Chemistry and Centre for Pharmacy, University of Bergen, 5007 Bergen, Norway
| | - Quanxing Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Wei Jiang
- State Key Laboratory of Pollution Control and Resources Reuse, National Engineering Research Center for Organic Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
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8
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Du J, Ding Y, Guo Y, Sun L, Li F. Iron atomic cluster supported on Co/NC having superior water oxidation activity over iron single atom. iScience 2023; 26:107339. [PMID: 37520718 PMCID: PMC10382919 DOI: 10.1016/j.isci.2023.107339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/06/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023] Open
Abstract
Carbon-supported iron-cobalt bimetallic electrocatalysts usually exhibit robust catalytic activity toward the oxygen evolution reaction (OER). However, the spatial isolation of Fe species at atomic level on cobalt-carbon solid remains a great challenge for practical catalytic applications in the OER. Here, we report the fabrication of CoFe bimetal porous carbon electrocatalysts by pyrolysis of molecularly defined iron complexes such as FePc (Pc = phthalocyanine) and Fe(acac)3 pre-encapsulated in the cavities of zeolitic imidazolate framework (ZIF)-67. With this unique strategy, high-loading atomic Fe nanoclusters (Fe-ACs) and Fe single atoms (Fe-SAs) were supported on Co/NC hybrids relying on the size of the molecular Fe precursors. The former exhibited superior OER performance to the single Fe atom-decorated Co/NC, as well as other ZIF-67-derived electrocatalysts. Theoretical modulation suggests Co as the OER active site for Fe-ACs@Co/NC at the in situ-formed FeOOH-ACs/Co3O4 interface, while Fe was proposed as the active site for Fe-SAs@Co/NC.
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Affiliation(s)
- Jian Du
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology, Dalian 116024, China
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Yunxuan Ding
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Yu Guo
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology, Dalian 116024, China
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Fei Li
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology, Dalian 116024, China
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He J, Han L, Ma W, Chen L, Ma C, Xu C, Yang Z. Efficient photodegradation of polystyrene microplastics integrated with hydrogen evolution: Uncovering degradation pathways. iScience 2023; 26:106833. [PMID: 37250789 PMCID: PMC10220245 DOI: 10.1016/j.isci.2023.106833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/03/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Photocatalytic microplastics (MPs) conversion into valuable products is a promising approach to alleviate MPs pollution in aquatic environments. Herein, we developed an amorphous alloy/photocatalyst composite (FeB/TiO2) that can successfully convert polystyrene (PS) MPs to clean H2 fuel and valuable organic compounds (92.3% particle size reduction of PS-MPs and 103.5 μmol H2 production in 12 h). FeB effectively enhanced the light-absorption and carrier separation of TiO2, thereby promoting more reactive oxygen species generation (especially ‧OH) and combination of photoelectrons with protons. The main products (e.g., benzaldehyde, benzoic acid, etc.) were identified. Additionally, the dominant PS-MPs photoconversion pathway was elucidated based on density functional theory calculations, by which the significant role of ‧OH was demonstrated in combination with radical quenching data. This study provides a prospective approach to mitigate MPs pollution in aquatic environments and reveals the synergistic mechanism governing the photocatalytic conversion of MPs and generation of H2 fuel.
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Affiliation(s)
- Jiehong He
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Lanfang Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Weiwei Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Liying Chen
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Chao Xu
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Zhifeng Yang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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10
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Lei W, Lu X, Wang M. Multiphase displacement manipulated by micro/nanoparticle suspensions in porous media via microfluidic experiments: From interface science to multiphase flow patterns. Adv Colloid Interface Sci 2023; 311:102826. [PMID: 36528919 DOI: 10.1016/j.cis.2022.102826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 12/04/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Multiphase displacement in porous media can be adjusted by micro/nanoparticle suspensions, which is widespread in many scientific and industrial contexts. Direct visualization of suspension flow dynamics and corresponding multiphase patterns is crucial to understanding displacement mechanisms and eventually optimizing these processes in geological, biological, chemical, and other engineering systems. However, suspension flow inside the opaque realistic porous media makes direct observation challenging. The advances in microfluidic experiments have provided us with alternative methods to observe suspension influence on the interface and multiphase flow behaviors at high temporal and spatial resolutions. Macroscale processes are controlled by microscale interfacial behaviors, which are affected by multiple physical factors, such as particle adsorption, capillarity, and hydrodynamics. These properties exerted on the suspension flow in porous media may lead to interesting interfacial phenomena and new displacement consequences. As an underpinning science, understanding and controlling the suspension transport process from interface to flow patterns in porous media is critical for a lower operating cost to improve resource production while reducing harmful emissions and other environmental impacts. This review summarizes the basic properties of different micro/nanoparticle suspensions and the state-of-the-art microfluidic techniques for displacement research activities in porous media. Various suspension transport behaviors and displacement mechanisms explored by microfluidic experiments are comprehensively reviewed. This review is expected to boost both experimental and theoretical understanding of suspension transport and interfacial interaction processes in porous media. It also brings forward the challenges and opportunities for future research in controlling complex fluid flow in porous media for diverse applications.
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Affiliation(s)
- Wenhai Lei
- Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Xukang Lu
- Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Moran Wang
- Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China.
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Kuruvinashetti K, Kornienko N. Pushing the methodological envelope in understanding the photo/electrosynthetic materials-microorganism interface. iScience 2021; 24:103049. [PMID: 34553134 PMCID: PMC8441150 DOI: 10.1016/j.isci.2021.103049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Biohybrid photo/electrosynthetic systems synergize microbial metabolic pathways and inorganic materials to generate the fuels and chemicals to power our society. They aim to combine the strengths of product selectivity from biological cells and efficient charge generation and light absorption of inorganic materials. However crucial mechanistic questions still remain. In this review we address significant knowledge gaps that must be closed and recent efforts to do so to push biohybrid systems closer to applicability. In particular, we focus on noteworthy advances that have recently been made in applying state-of-the-art analytical spectroscopic, electrochemical, and microelectronic techniques to help pinpoint key complexities of the microbe-materials interface. We discuss the basic function of these techniques, how they have been translated over to study biohybrid systems, and which key insights and implications have been extracted. Finally, we delve into the key advances necessary for the design of next generation biohybrid energy conversion systems.
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Affiliation(s)
- Kiran Kuruvinashetti
- Department of Chemistry, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3 Canada
| | - Nikolay Kornienko
- Department of Chemistry, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3 Canada
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