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Gong X, Liu J, Zhang C, Cao M, Min Y, Yuan C, Hu X, Xu J, Liu H. Protonated amine and pyrene co-functionalized sodium alginate templated on reduced graphene oxide for highly efficient removal of formaldehyde and acid pollutants. Int J Biol Macromol 2024; 274:133377. [PMID: 38925180 DOI: 10.1016/j.ijbiomac.2024.133377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 05/28/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024]
Abstract
Indoor formaldehyde pollution can cause inestimable harm to human health and even cancers, thus studies on the removal of formaldehyde attract extensive attentions. In this paper, an environmentally friendly and low-cost biomass material, sodium alginate (SA) was utilized to prepare pyrene functionalized amido-amine-alginic acid (AmAA-Py) by acidification and two-step amidation, which is subsequently self-assembled on reduced graphene oxide (rGO) by π-π stacking interaction, and the final composites were acidified to afford a highly porous composite material for chemical removal of formaldehyde. The formaldehyde chemical removal performance of composite is evaluated at different conditions and find that 1.0 g of acidified alginate derivatives and graphene composites (HCl·AmAA-Py-rGO) can adsorb 69.2 mg of HCHO. Simultaneously, amino groups in amido-amine derivative of acidified sodium alginate (AmAA) can react with acidic pollutants such as H2S and HCl via forming ionic bonding without generating any other by-products, which enables efficient and environment-friendly removal of acidic pollutants. The subtle design of the highly porous composite material utilizing low-cost SA and rGO with large specific surface area opens up a new methodology for fabricating highly porous materials for efficient removal of formaldehyde and other indoor hazardous pollutants.
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Affiliation(s)
- Xiaole Gong
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China.
| | - Changbin Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Mengyu Cao
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Yuru Min
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Chenyao Yuan
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Xiaoxia Hu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Jiangtao Xu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
| | - Honglei Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University 308 Ningxia Road, Qingdao 266071, China
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Xu H, Liang N, Cui L, Zhang H, Yang B, Jin Z. Synergistic effect of interface and defect engineering of MoC/MoO 2 nano dot encapsulated N-doped carbon nanoflowers for highly durable dye-sensitized solar cells. J Colloid Interface Sci 2024; 653:1620-1629. [PMID: 37812838 DOI: 10.1016/j.jcis.2023.10.008] [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: 07/04/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
The design and fabrication of advanced counter electrodes (CEs) for dye-sensitized solar cells (DSSCs) are limited by the scarcity of active sites and poor durability. Herein, we report the controlled preparation of a heterostructured nanoreactor CE based on defect-rich N-doped carbon nanoflowers (NCF) encapsulating MoC/MoO2 nano dots (NDs) in a well-defined heterophase (MoC/MoO2-NCF). The MoC/MoO2 NDs were uniformly dispersed on the NCF, and the NCF limited the size of the MoC/MoO2 NDs and prevented their agglomeration, thus maximizing the electrochemically active surface area of MoC/MoO2. Moreover, the synergistic effect between the MoC/MoO2 interface and the N-defects is conducive to the full exposure of the active sites. Furthermore, theoretical calculations revealed that the MoC/MoO2 heterojunction played a unique role in modulating the electronic structure and regulating the adsorption energy of tri-iodide in the iodide reduction reaction. The MoC/MoO2-NCF CEs in DSSCs demonstrated a power conversion efficiency (PCE) of 9.92% and high durability, exceeding the PCE (8.36%) and durability of Pt CEs. Overall, this study offers insights into the controlled synthesis of high-performance Mo-based composite CE materials for DSSCs.
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Affiliation(s)
- Haifeng Xu
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China.
| | - Nannan Liang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Lin Cui
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Haining Zhang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Bo Yang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, PR China
| | - Zhong Jin
- State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer, Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, PR China.
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Xin C, Liang S, Hu J, Guo J, Cheng X, Shang W, Wei J, Zhang S, Liu W, Zhu C, Hou J, Shi Y. In-Situ Grafting of Single-Atomic Titanium-Nitrogen Moiety onto Carbon Nanostructures for Efficient Photovoltaic Devices. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50849-50857. [PMID: 36321608 DOI: 10.1021/acsami.2c14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Early transition metals offer promising orthogonal reactivity to catalytic processes promoted by late transition metals. Nevertheless, exploiting variable single-atomic configurations as reactive centers is hitherto not well documented owing to their oxophilic nature. Herein we report an in-situ grafting strategy that employs nitrogenated holey carbon nitrides as a scaffold and invokes the reasonably good match of temperature-dependent pyrolysis to stabilize an atomic titanium-nitrogen (Ti1N2OH) moiety onto the hierarchical porous carbon support (Ti1/NC-SAC). The Ti1/NC-SAC as the cathode in dye-sensitized solar cells assembly exhibited superior electrocatalytic activity toward the triiodine reduction reaction, comparable to the conventional Pt cathode. DFT studies theoretically identified that the intrinsic robust triiodine reduction activity is essentially governed by the unique edge-hosted Ti sites, from both aspects, near-optimal adsorption of I intermediate and electron-donating ability. This work sheds light on the rational design of Ti-based SACs and their applications in photovoltaic fields.
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Affiliation(s)
- Cuncun Xin
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Suxia Liang
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Jinwen Hu
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jingya Guo
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xusheng Cheng
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wenzhe Shang
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jiazhen Wei
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Songlin Zhang
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Wei Liu
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Chao Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, Nanjing 210096, China
| | - Jungang Hou
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yantao Shi
- State Key Laboratory of Fine Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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Wang G, Ke X, Sui M. Advanced TEM Characterization for Single-atom Catalysts: from Ex-situ Towards In-situ. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2245-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Huang D, Kim DJ, Rigby K, Zhou X, Wu X, Meese A, Niu J, Stavitski E, Kim JH. Elucidating the Role of Single-Atom Pd for Electrocatalytic Hydrodechlorination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13306-13316. [PMID: 34545738 DOI: 10.1021/acs.est.1c04294] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, we loaded Pd catalysts onto a reduced graphene oxide (rGO) support in an atomically dispersed fashion [i.e., Pd single-atom catalysts (SACs) on rGO or Pd1/rGO] via a facile and scalable synthesis based on anchor-site and photoreduction techniques. The as-synthesized Pd1/rGO significantly outperformed the Pd nanoparticle (Pdnano) counterparts in the electrocatalytic hydrodechlorination of chlorinated phenols. Downsizing Pdnano to Pd1 leads to a substantially higher Pd atomic efficiency (14 times that of Pdnano), remarkably reducing the cost for practical applications. The unique single-atom architecture of Pd1 additionally affects the desorption energy of the intermediate, suppressing the catalyst poisoning by Cl-, which is a prevalent challenge with Pdnano. Characterization and experimental results demonstrate that the superior performance of Pd1/rGO originates from (1) enhanced interfacial electron transfer through Pd-O bonds due to the electronic metal-support interaction and (2) increased atomic H (H*) utilization efficiency by inhibiting H2 evolution on Pd1. This work presents an important example of how the unique geometric and electronic structure of SACs can tune their catalytic performance toward beneficial use in environmental remediation applications.
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Affiliation(s)
- Dahong Huang
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, P. R. China
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - David J Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Kali Rigby
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Xuechen Zhou
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Xuanhao Wu
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Aidan Meese
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
| | - Junfeng Niu
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, P. R. China
| | - Eli Stavitski
- National Synchrotron Light Source-II, Brookhaven National Laboratory, Upton, New York, New York 11973, United States
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520, United States
- NSF Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment (NEWT), Yale University, 17 Hillhouse Ave, New Haven, Connecticut, 06511, United States
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Ma J, Cui Z, Du Y, Xu Q, Deng Q, Zhu N. Multifunctional Prussian blue/graphene ink for flexible biosensors and supercapacitors. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Rui H, Shen J, Yu Z, Li L, Han H, Sun L. Stable Dye-Sensitized Solar Cells Based on Copper(II/I) Redox Mediators Bearing a Pentadentate Ligand. Angew Chem Int Ed Engl 2021; 60:16156-16163. [PMID: 33991028 DOI: 10.1002/anie.202104563] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 12/24/2022]
Abstract
In recent years, copper redox mediators have attracted growing interest in dye-sensitized solar cells (DSCs). However, experiments revealed that ubiquitously used Lewis-base additives in the electrolytes coordinate to the CuII species, which restricts further enhancement of device performance and stability. We report the application of copper complexes endowed with diamine-tripyridine pentadentate ligands, [Cu(tpe)]2+/+ (tpe=N-benzyl-N,N',N'-tris(pyridin-2-ylmethyl)ethylenediamine) and [Cu(tme)]2+/+ (tme=N-benzyl-N,N',N'-tris(6-methylpyridin-2-ylmethyl)ethylenediamine), as redox mediators in DSCs. Experimental measurements demonstrate that the coordination environment of Cu(II) complexes with pentadentate ligands remains unchanged in the presence of TBP, which is in stark contrast to the state-of-the-art bipyridyl counterpart. DSCs based on [Cu(tme)]2+/+ complexes exhibit an excellent long-term stability and maintain more than 90 % of the initial efficiency after 400 h under continuous illumination, which outperform the reference devices incorporating the bipyridyl counterpart (less than 80 %) under identical conditions.
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Affiliation(s)
- Hailong Rui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, China
| | - Junyu Shen
- Jiangsu Laboratory of Advanced Functional Materials, School of Materials Engineering, Changshu Institute of Technology, Changshu, 215500, China
| | - Ze Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, China
| | - Lihua Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, China
| | - Hongxian Han
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023, China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, China.,Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 10044, Stockholm, Sweden.,Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, 310024, Hangzhou, China
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8
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Rui H, Shen J, Yu Z, Li L, Han H, Sun L. Stable Dye‐Sensitized Solar Cells Based on Copper(II/I) Redox Mediators Bearing a Pentadentate Ligand. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hailong Rui
- State Key Laboratory of Fine Chemicals Dalian University of Technology (DUT) Dalian 116024 China
| | - Junyu Shen
- Jiangsu Laboratory of Advanced Functional Materials School of Materials Engineering Changshu Institute of Technology Changshu 215500 China
| | - Ze Yu
- State Key Laboratory of Fine Chemicals Dalian University of Technology (DUT) Dalian 116024 China
| | - Lihua Li
- State Key Laboratory of Fine Chemicals Dalian University of Technology (DUT) Dalian 116024 China
| | - Hongxian Han
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian National Laboratory for Clean Energy Dalian 116023 China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals Dalian University of Technology (DUT) Dalian 116024 China
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
- Center of Artificial Photosynthesis for Solar Fuels School of Science Westlake University 310024 Hangzhou China
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Soni J, Sethiya A, Sahiba N, Agarwal S. Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6162] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jay Soni
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Ayushi Sethiya
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Nusrat Sahiba
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Shikha Agarwal
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
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Li N, Zhu C, Zhang J, Jing H, Hu J, Hao C, Shi Y. Single-atom-catalyst with abundant Co-S 4 sites for use as a counter electrode in photovoltaics. Chem Commun (Camb) 2021; 57:5302-5305. [PMID: 33908957 DOI: 10.1039/d1cc00294e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a 7.35 wt% Co loading C-SAC is synthesized by pyrolysis of Co-MOF-74 in a strongly polar molten salt system. In dye-sensitized solar cells, this SAC based counter electrode shows higher photoelectric conversion efficiency than the Pt counter electrode. This work provides new insights for the preparation and application of C-SACs.
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Affiliation(s)
- Nannan Li
- State Key Laboratory of Fone Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian Univesity of Technology, Dalian, 116024, China.
| | - Chao Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, 2 No. 4 Pailou, Nanjing, 210096, China
| | - Jiangwei Zhang
- Chinese Acad Sci, Dalian Inst Chem Phys, Stata Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian, 116023, China
| | - Hongyu Jing
- State Key Laboratory of Fone Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian Univesity of Technology, Dalian, 116024, China.
| | - Jinwen Hu
- State Key Laboratory of Fone Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian Univesity of Technology, Dalian, 116024, China.
| | - Ce Hao
- State Key Laboratory of Fone Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian Univesity of Technology, Dalian, 116024, China.
| | - Yantao Shi
- State Key Laboratory of Fone Chemicals, Department of Chemistry, School of Chemical Engineering, Dalian Univesity of Technology, Dalian, 116024, China.
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