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Feng X, Zhou S, Liu J, Wu J, Wang J, Zhang W, Jiang Y, Liu Y, Zhang J, Lu X. Indium oxide-based Z-scheme hollow core-shell heterostructure with rich sulfur-vacancy for highly efficient light-driven splitting of water to produce clean energy. J Colloid Interface Sci 2024; 672:401-414. [PMID: 38850865 DOI: 10.1016/j.jcis.2024.05.093] [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: 03/26/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 06/10/2024]
Abstract
Crafting an inorganic semiconductor heterojunction with defect engineering and morphology modulation is a strategic approach to produce clean energy by the highly efficient light-driven splitting of water. In this paper, a novel Z-scheme sulfur-vacancy containing Zn3In2S6 (Vs-Zn3In2S6) nanosheets/In2O3 hollow hexagonal prisms heterostructrue (Vs-ZIS6INO) was firstly constructed by an oil bath method, in which Vs-Zn3In2S6 nanosheets grew on the surfaces of In2O3 hollow hexagonal prisms to form a hollow core-shell structure. The obtained Vs-ZIS6INO heterostructrue exhibited much enhanced activity of the production of H2 and H2O2 by the light-driven water splitting. In particular, under visible light irradiation (λ > 420 nm), the rate of generation of H2 of Vs-ZIS6INO sample containing 30 wt% Vs-Zn3In2S6 (30Vs-ZIS6INO) could reach 3721 μmol g-1h-1, which was 87 and 6 times higher than those of Zn3In2S6 (43 μmol g-1h-1) and Vs-Zn3In2S6 (586 μmol g-1h-1), respectively. Meanwhile, 30Vs-ZIS6INO could exhibit the rate of H2O2 production of 483 μmol g-1h-1 through the dual pathways of indirect 2e- oxygen reduction (ORR) and water oxidation (WOR) without adding any sacrifice agents, far exceeding In2O3 (7 μmol g-1h-1) and Vs-Zn3In2S6 (58 μmol g-1h-1). The excellent photocatalytic activities of H2 and H2O2 generations of Vs-ZIS6INO sample might result from the synergistic effect of the sulfur vacancy, hollow core-shell structure, and Z-scheme heterostructure, which accelerated the electron delocalization, enhanced the absorption and conversion of solar energy, reduced the carrier diffusion distance, and ensured high REDOX ability. In addition, the possible photocatalytic mechanisms for the production of H2 and H2O2 were discussed in detail. This study provided a new idea and reference for constructing the novel and efficient inorganic semiconductor heterostructures by coordinating vacancy defect and morphology design to adequately utilize water splitting for the production of clean energy.
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Affiliation(s)
- Xintao Feng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Shihan Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jiaxing Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jingbo Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jundi Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wenli Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yinhua Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jianming Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaoqing Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
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2
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Liang H, Wang H, Wang A, Cheng R, Jing S, Chen F, Kannan P, Balkourani G, Tsiakaras P. Efficient photocatalytic hydrogen peroxide production over S-scheme In 2S 3/molten salt modified C 3N 5 heterojunction. J Colloid Interface Sci 2024; 669:506-517. [PMID: 38723539 DOI: 10.1016/j.jcis.2024.04.114] [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: 02/02/2024] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 05/27/2024]
Abstract
Graphitic phase carbon nitride (g-C3N5), as a novel n-type metal-free material, is employed as a visible light-receptive catalyst because of its narrow band gap and abundant nitrogen. To overcome the low carrier mobility efficiency of g-C3N5, its modification by K ions was adopted. In addition, In2S3 was selected to couple with modified g-C3N5 to overcome the recombination of photogenerated e-/h+. As a novel photocatalytic material, it was proven to possess a high visible light absorption capacity and a strong H2O2 production ability (up to 3.89 mmol⋅L-1 in 2 h). Moreover, a S-scheme heterojunction structure was successfully constructed between the two materials, which was tested and confirmed to be successful in raising the photogenerated e-/h+ separation efficiency. Ultimately, the primary processes of photocatalytic H2O2 production were summarized by superoxide radical and rotating disc electron measurements. This research provides a fresh perspective for the synthesis of C3N5-based S-scheme heterojunction photocatalysts for producing H2O2.
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Affiliation(s)
- Huagen Liang
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China; School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221008, China
| | - Haoran Wang
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Anhu Wang
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China; School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221008, China
| | - Ruolin Cheng
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
| | - Shengyu Jing
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China; Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos 38834, Greece
| | - Fu Chen
- School of Public Administration, Hohai University, Nanjing 210098, China.
| | - Palanisamy Kannan
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Georgia Balkourani
- Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos 38834, Greece
| | - Panagiotis Tsiakaras
- Laboratory of Electrochemical Devices based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry (RAS), Yekaterinburg 620990, Russian Federation; Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos 38834, Greece.
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3
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Zhou C, Sui M, Guo Y, Du S. Enhancing Fenton-like reaction through a multifunctional molybdenum disulfide film coating on nano zero valent iron surface (MoS 2@nZVI): Collaboration of radical and non-radical pathways. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170818. [PMID: 38342461 DOI: 10.1016/j.scitotenv.2024.170818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/17/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
In this study, we synthesized nano zero-valent iron incorporated with a multifunctional molybdenum disulfide film (MoS2@nZVI). The material exhibited a 100.00 % removal efficiency for sulfamethoxazole (SMX) and achieved a kobs of 0.4485 min-1 within 10 min. The excellent degradation performance can be attributed to the incorporation of the MoS2 film, which facilitated Fe2+ regeneration. Simultaneously, the MoS2 film assisted in proton accumulation and electron transfer, thereby amplifying the efficiency of SMX degradation across a wide pH range. Comprehensive experimental examinations and characterizations confirmed the selectivity and stability of the MoS2@nZVI catalysts, encompassing both degradation efficiency and structural stability. Interestingly, the MoS2@nZVI/PMS system for SMX degradation significantly involved a non-radical mechanism (1O2), along with radicals (SO4·-, ·OH, and O2·-). The direct oxidation of PMS by Fe2+ not only facilitated the generation of ·OH and SO4·- but also actively engaged in a reaction with O2, leading to the production of O2·-. The primary pathway for 1O2 production was established through the interplay between Mo6+ and O2·-, in conjunction with the direct electron transfer (DET) mechanism between PMS and SMX. The contributions of these active species to SMX degradation occurred in the following precedence: SO4·- > 1O2 > ·OH > O2·-. Notably, the primary pathways for radicals and non-radicals were studied during separate reaction periods. This investigation proposed a promising approach for mitigating pharmaceutical pollutants using a transition metal sulfide-modified nZVI catalyst.
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Affiliation(s)
- Chundi Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Minghao Sui
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China.
| | - Yali Guo
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Songhang Du
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
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4
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Zhang H, Yang S, Zhu P, Tang S, Li M. Bimetal MOF-derived NiFe-P nanocomposites coupled with Cu 3P nanoparticles to construct tandem electron transfer channels for photocatalytic hydrogen evolution. J Environ Sci (China) 2024; 137:333-346. [PMID: 37980020 DOI: 10.1016/j.jes.2023.01.027] [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: 10/14/2022] [Revised: 01/16/2023] [Accepted: 01/27/2023] [Indexed: 11/20/2023]
Abstract
Finely modulated light-induced charge separation and transfer is a central challenge to achieve efficient photocatalysis. Although progress has been made in this field, most of the previous research works focused on the separation or migration of photogenerated carriers but did not build a bridge between the two. How to realize the strong driving and precise migration of carriers has become the focus of our work. We report an ingeniously designed ternary heterojunction. Taking NiFe-MOF as the "parent material", the FeP4/NixPy heterojunction is derived in situ while maintaining the frame structure through gas-solid reaction, and finally the Z-type electron transfer is realized. With Cu3P anchoring spindle matrix, an electron transport tunnel is opened up in Cu3P/FeP4/NixPy ternary heterojunction under the action of p-n heterojunction built-in electric field driving and accurate energy band matching. The strong driving force of the built-in electric field provides an inexhaustible power for the transmission of electrons, and the fine series of electron transmission channels realizes the precise transmission of electrons. The above fine design makes the perfect fit between the built-in electric field and the electron transfer channel, which not only effectively improves the embarrassing situation of insufficient electron driving force of hydrogen evolution reaction in the previous research, but also makes up for the weakening of semiconductor reduction ability caused by the construction of traditional p-n heterostructures. This research work provides a new idea for the construction of multiple heterostructures and the design of fine interface engineering in the future.
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Affiliation(s)
- Haiyan Zhang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Shitao Yang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Peng Zhu
- School of Account, Hunan University of Technology and Business, Changsha 410205, China.
| | - Senpei Tang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Ming Li
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
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5
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Zhang W, Li Z, Yu XF, Zhang K, Liu S, Du Y, Guo Q, Zhang L, Ding X, Tang H, Peng Y, Yang X. Photothermal Synergistic Catalysis over Defective Zn 3In 2S 6 for CO 2 Fixation. Inorg Chem 2024; 63:2954-2966. [PMID: 38288974 DOI: 10.1021/acs.inorgchem.3c03520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2024]
Abstract
Carbon dioxide (CO2) cycloaddition not only produces highly valued cyclic carbonate but also utilizes CO2 as C1 resources with 100% atomic efficiency. However, traditional catalytic routes still suffer from inferior catalytic efficiency and harsh reaction conditions. Developing multienergy-field catalytic technology with expected efficiency offers great opportunity for satisfied yield under mild conditions. Herein, Zn3In2S6 with sulfur vacancies (Sv) was fabricated with the assistance of cetyltrimethylammonium bromide (CTAB), which is further employed for photothermally driven CO2 cycloaddition first. Photoluminescence spectroscopy and photoelectrochemical characterization demonstrated its superior separation kinetics of photoinduced carriers induced by defect engineering. The temperature-programmed desorption (TPD) technique indicated its excellent Lewis acidity-basicity characters. Due to the combination of above merits from photocatalysis and thermal catalysis, defective Zn3In2S6-Sv achieved a yield as high as 73.2% for cyclic carbonate at 80 °C under blue LED illumination within 2 h (apparent quantum yield of 0.468% under illumination of 380 nm monochromatic light at 36 mW·cm-2), which is 2.9, 2.0, and 6.9 times higher than that in dark conditions and those of pristine Zn3In2S6 and industrial representative tetrabutylammonium bromide (TBAB) thermal-catalysis process under the same conditions, respectively. The synergistic reaction path of photocatalysis and thermal catalysis was discriminated by theoretical calculation. This work provides new insights into the photothermal synergistic catalysis CO2 cycloaddition with defective ternary metal sulfides.
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Affiliation(s)
- Weilong Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Zhuo Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Xue-Fang Yu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, No. 32 Qingquan Road, Yantai 264005, P. R. China
| | - Kaisheng Zhang
- Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Senmiao Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Yujie Du
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Qi Guo
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Lixue Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Xin Ding
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Hua Tang
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yanhua Peng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
| | - Xiaolong Yang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Bio-based Fibers and Ecological Textiles, Qingdao University, 308 NingXia Road, Qingdao 266071, P. R. China
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6
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Chen B, Wang Y, Shen S, Zhong W, Lu H, Pan Y. Lattice Defects and Electronic Modulation of Flower-Like Zn 3 In 2 S 6 Promote Photocatalytic Degradation of Multiple Antibiotics. SMALL METHODS 2024:e2301598. [PMID: 38168900 DOI: 10.1002/smtd.202301598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/12/2023] [Indexed: 01/05/2024]
Abstract
Photocatalysis is an effective technique to remove antibiotic residues from aquatic environments. Typical metal sulfides like Zn3 In2 S6 have been applied to a wide range of photocatalytic applications. However, there are currently no readily accessible methods to increase its antibiotic-degrading activity. Here, a facile hydrothermal approach is developed for the preparation of flower-like Zn3 In2 S6 with tunable sulfur lattice defects. Photogenerated carriers can be separated and transferred more easily when there is an adequate amount of lattice defects. Moreover, lattice defect-induced electronic modulation enhances light utilization and adsorption properties. The modified Zn3 In2 S6 demonstrates outstanding photocatalytic degradation activity for levofloxacin, ofloxacin, and tetracycline. This work sheds light on exploring metal sulfides with sulfur lattice defects for enhancing photocatalytic activity.
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Affiliation(s)
- Baofu Chen
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
| | - Yichao Wang
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
| | - Shijie Shen
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
| | - Wenwu Zhong
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
| | - Hongsheng Lu
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
| | - Yin Pan
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Zhejiang, 318000, China
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7
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Xia M, Niu Q, Qu X, Zhang C, Qu X, Li H, Yang C. Simultaneous adsorption and biodegradation of oxytetracycline in wastewater by Mycolicibacterium sp. immobilized on magnetic biochar. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 339:122728. [PMID: 37844861 DOI: 10.1016/j.envpol.2023.122728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/03/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
Due to the adverse effects of long-term oxytetracycline (OTC) residues in aquatic environments, an effective treatment is urgently needed. Immobilized microbial technology has been widely explored in the treatment of various organic pollutants in aquatic environments with its excellent environmental adaptability. Nevertheless, studies on its application in the removal of antibiotics are relatively scarce and not in sufficient depth. Only a few studies have further investigated the final fate of antibiotics in the immobilized bacteria system. In this study, a novel kind of OTC-degrading bacteria Mycolicibacterium sp. was immobilized on straw biochar and magnetic biochar, respectively. Magnetic biochar was proved to be a more satisfactory immobilization carrier due to its superior property and the advantage of easy recycling. Compared with free bacteria, immobilized bacteria had stronger environmental adaptability under different OTC concentrations, pH, and heavy metal ions. After 5 cycles, immobilized bacteria could still remove 71.8% of OTC, indicating that it had a stable recyclability. Besides, OTC in real swine wastewater was completely removed by immobilized bacteria within 2 days. The results of FTIR showed that bacteria were successfully immobilized on biochar and O-H, N-H, and C-N groups might be involved in the removal of OTC. The fate analysis indicated that OTC was removed by simultaneous adsorption and biodegradation, while biodegradation (92.8%) played a dominant role in the immobilized bacteria system. Meanwhile, the amount of adsorbed OTC (7.20%) was rather small, which could effectively decrease the secondary pollution of OTC. At last, new degradation pathways of OTC were proposed. This study provides an eco-friendly and effective approach to remedy OTC pollution in wastewater.
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Affiliation(s)
- Mengmeng Xia
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Qiuya Niu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China.
| | - Xiyao Qu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Chengxu Zhang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Xiaolin Qu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Haoran Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, PR China
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8
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Liu W, Xiong Y, Liu Q, Chang X, Tian J. The construction of S-scheme heterostructure in ultrathin WS 2/Zn 3In 2S 6 nanosheets for enhanced photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 651:633-644. [PMID: 37562305 DOI: 10.1016/j.jcis.2023.07.200] [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: 05/16/2023] [Revised: 07/04/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023]
Abstract
Metal sulfide based photocatalysts are considered to be economic, environmentally benign and renewable. The rapid recombination of photogenerated electrons and holes and low solar energy utilization efficiency, however, remain a huge bottleneck. Herein, two-dimensional/two-dimensional (2D/2D) S-scheme WS2/Zn3In2S6 heterostructure with ultrathin nanosheets intervening between neighboring component has been designed. The large and intimate S-scheme heterojunctions facilitate interfacial charge separation/transfer and optimize the available redox potential. Besides, the ultrathin 2D/2D heterostructure ensures large specific surface area, maximized interface synergistic interaction, and effective exposure of surface active sites. As a result, 2 wt% WS2/Zn3In2S6 exhibits a high photocatalytic hydrogen production rate of 30.21 mmol·g-1·h-1 under simulated solar light illumination with an apparent quantum efficiency of 56.1% at 370 nm monochromatic light, far exceeding pristine Zn3In2S6 (6.65 mmol·g-1·h-1). Our work underscores the significance of integrating morphology engineering and S-scheme heterojunctions design for high-efficient and low-cost photocatalysts.
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Affiliation(s)
- Wendi Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Ya Xiong
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China.
| | - Qian Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China
| | - Xiao Chang
- College of Physics, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Jian Tian
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, PR China.
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9
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Zhou C, Sui M, Du S. Insights into the electron activation mechanisms at the micro level by nano zero-valent iron supported by molybdenum disulfide (nZVI@MD) from preparation to application. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131968. [PMID: 37429190 DOI: 10.1016/j.jhazmat.2023.131968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/14/2023] [Accepted: 06/28/2023] [Indexed: 07/12/2023]
Abstract
Both molybdenum disulfide (MoS2) and nano zero-valent iron (nZVI) exhibit excellent adsorption abilities. However, the constrained conductivity of MoS2 and the lack of selectivity of nZVI for electron transfer still pose challenges. In this study, we designed a series of novel nano zero-valent iron supported by molybdenum disulfide composites (nZVI@MD) with multiple electron-rich active sites, including iron dopant replacement, iron atom intercalation and exposed Mo4+, for effective removal of Cr(VI). Results showed that preparation temperature and the amount of MoS2 added were identified as the two most significant factors affecting the reduction properties of nZVI@MD. Systematic experiments revealed that the nZVI@MD exhibited good anti-interference performance, stability and reusability due to its excellent electron selectivity. Characterization results exhibited that iron atoms replaced the sulfur vacancies in MoS2 and inserted into an intercalation of MoS2 during the preparation process. The mechanisms underlying the uptake of Cr(VI) by nZVI@MD can be proposed as follows: (i) electrostatic interactions, (ii) reduction reaction, and (iii) co-precipitation involving Fe-O-Cr. Furthermore, nZVI@MD exhibited excellent electron activity, hydrophilicity and oxidation resistance, confirmed by density functional theory (DFT) calculations. This work provided new strategies and mechanistic insights for the rational design of adsorbents.
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Affiliation(s)
- Chundi Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Minghao Sui
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China.
| | - Songhang Du
- State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
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10
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Zhang M, Lai C, Xu F, Huang D, Hu T, Li B, Ma D, Liu S, Fu Y, Li L, Tang L, Chen L. Ultrahigh Performance H 2 O 2 Generation by Single-Atom Fe Catalysts with N/O Bidentate Ligand via Oxalic Acid and Oxygen Molecules Activation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301817. [PMID: 37093465 DOI: 10.1002/smll.202301817] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Single-atom catalysts (SACs) for photocatalytic hydrogen peroxide (H2 O2 ) generation are researched but it is still challenging to obtain high H2 O2 yields. Herein, graphite carbon nitride (FeSA /CN) confined single Fe atoms with N/O coordination is prepared, and FeSA /CN shows high H2 O2 production via oxalic acid and O2 activation. Under visible light illumination, the concentration of H2 O2 generated by FeSA /CN can achieve 40.19 mM g-1 h-1 , which is 10.44 times higher than that of g-C3 N4 . The enhanced H2 O2 generation can be attributed to the formation of metal-organic complexes and rapid electron transfer. Moreover, the O2 activation of photocatalysts is revealed by 3,3',5,5'-tetramethylbenzidine oxidation. The results display that the O2 activation capacity of FeSA /CN is higher than that of g-C3 N4 , which facilitates the formation of H2 O2 . Finally, density functional theory calculation demonstrates that O2 is chemically adsorbed on Fe atomic sites. The adsorption energy of O2 is enhanced from -0.555 to -1.497 eV, and the bond length of OO is extended from 1.235 to 1.292 Å. These results exhibit that the confinement of single Fe atoms can promote O2 adsorption and activation. Finally, the photocatalytic mechanism is elaborated, which provides a deep understanding for SACs-catalyzed H2 O2 generation.
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Affiliation(s)
- Mingming Zhang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Fuhang Xu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Tianjue Hu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Bisheng Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Yingbin Road, Jinhua, 321004, P. R. China
| | - Dengsheng Ma
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Shiyu Liu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Yukui Fu
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Ling Li
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Changsha, 410082, P. R. China
| | - Liang Chen
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Shaoshan Road, Changsha, 410004, P. R. China
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11
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Yang L, Si J, Liang L, Wang Y, Zhu L, Zhang Z. Construction of ZnO/Zn 3In 2S 6/Pt with integrated S-scheme/Schottky heterojunctions for boosting photocatalytic hydrogen evolution and bisphenol a degradation. J Colloid Interface Sci 2023; 649:855-866. [PMID: 37390533 DOI: 10.1016/j.jcis.2023.06.164] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Photocatalytic water splitting has been identified as a promising solution to tackle the current environmental and energy crisis in the world. However, the challenge of this green technology is the inefficient separation and utilization of photogenerated electron-hole pairs in photocatalysts. To overcome this challenge in one system, a ternary ZnO/Zn3In2S6/Pt material was prepared as a photocatalyst using a stepwise hydrothermal process and in-situ photoreduction deposition. The integrated S-scheme/Schottky heterojunction in the constructed ZnO/Zn3In2S6/Pt photocatalyst enabled it to exhibit efficient photoexcited charge separation/transfer. The evolved H2 reached up to 3.5 mmol g-1h-1. Meanwhile, the ternary composite possessed a high cyclic stability against photo-corrosion under irradiation. Practically, the ZnO/Zn3In2S6/Pt photocatalyst also showed great potential for H2 evolution while simultaneously degrading organic contaminants like bisphenol A. It is hoped in this work that the incorporation of Schottky junctions and S-scheme heterostructures in the construction of photocatalysts would lead to accelerated electron transfer and high photoinduced electron-hole pair separation, respectively, to synergistically enhance the performance of photocatalysts.
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Affiliation(s)
- Lifang Yang
- College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, PR China.
| | - Jiangju Si
- College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, PR China
| | - Liang Liang
- College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, PR China
| | - Yunfei Wang
- College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, PR China
| | - Li Zhu
- College of Chemistry and Materials Engineering, Xinxiang University, Xinxiang 453003, PR China
| | - Zizhong Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, College of Chemistry, Fuzhou University, Fuzhou 350108, PR China.
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12
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Rapid room-temperature mechanosynthesis tensile-strained Bi3O4Br for robust photomineralization. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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13
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Dual cocatalysts and vacancy strategies for enhancing photocatalytic hydrogen production activity of Zn 3In 2S 6 nanosheets with an apparent quantum efficiency of 66.20. J Colloid Interface Sci 2023; 640:31-40. [PMID: 36827846 DOI: 10.1016/j.jcis.2023.02.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/03/2023] [Accepted: 02/10/2023] [Indexed: 02/13/2023]
Abstract
Converting solar energy into hydrogen energy is a feasible means to solve the current energy crisis. However, developing an excellent photocatalyst with high light utilization and stability for hydrogen production remains a great challenge. In this work, CoS2 nanoparticles as cocatalysts are growth on Zn3In2S6 nanosheets with abundant sulfur vacancies for hydrogen evolution, and the optimal rate of hydrogen evolution is as high as 5.69 mmol h-1 g-1 in the absence of noble metal co-catalyst Pt, which is 2.87 and 2.29 times that of CoS2/Zn3In2S6 (with few sulfur vacancies) and Zn3In2S6 (with rich sulfur vacancies). In addition, the hydrogen production rate of CoS2/Zn3In2S6 composite (with rich sulfur vacancies and 1 wt% Pt) is 24.17 mmol h-1 g-1, which is 4.25 and 1.90 times that of CoS2/Zn3In2S6 (with rich sulfur vacancies) and 1%-Pt/Zn3In2S6 (with rich sulfur vacancies), respectively. The apparent quantum efficiency (AQE) of CoS2/Zn3In2S6 composite (with rich sulfur vacancies and 1 wt% Pt) reaches 66.20% under light irradiation at the wavelength of 370 nm. Above all indicate that dual cocatalysts (CoS2 and Pt) and sulfur vacancies can promote the efficient hydrogen evolution activity of Zn3In2S6 nanosheets. This work will provide new ideas and insights for the development of photocatalytic hydrogen production technology.
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14
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Guo H, Niu HY, Wang WJ, Wu Y, Xiong T, Chen YR, Su CQ, Niu CG. Schottky barrier height mediated Ti3C2 MXene based heterostructure for rapid photocatalytic water disinfection: Antibacterial efficiency and reaction mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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15
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Magnetic pyro-hydrochar derived from waste cartons as an efficient activator of peroxymonosulfate for antibiotic dissipation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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16
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Li J, Lu Z, Jin C, Shen J, Jiang H, Yu X, Sun L, Wang W, Wang L, Liu Q. Plasmonic Ni 3N Cocatalyst Boosting Directional Charge Transfer and Separation toward Synergistic Photocatalytic–Photothermal Performance of Hydrogen and Benzaldehyde Production as Well as Bacterial Inactivation. Inorg Chem 2022; 61:18979-18989. [DOI: 10.1021/acs.inorgchem.2c03268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jinhe Li
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Zhongxi Lu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Cheng Jin
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Jun Shen
- School of Pharmacy, Suzhou Vocational Health College, Suzhou215009, P. R. China
| | - Haopeng Jiang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Xiaohui Yu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Lijuan Sun
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Weikang Wang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Lele Wang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
| | - Qinqin Liu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang212013, China
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17
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Zhang B, Wu M, Chen Z, Dong L, Li B, Tao L, Wang H, Li D. Fabrication of novel direct Z-scheme + isotype heterojunction photocatalyst g-C 3N 4/TiO 2 with peroxymonosulfate (PMS) activation synergy and 2D/0D structure. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01387h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A novel strategy for fabricating C3N4/TiO2 Z-scheme heterojunctions based on C3N4 isotype heterojunctions is presented. This scheme exploits the structural plasticity of C3N4 to achieve a breakthrough in activity without adding new materials.
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Affiliation(s)
- Bowen Zhang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Mingkun Wu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Zhengjun Chen
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Lihui Dong
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Bin Li
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Lin Tao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Haonan Wang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Danyang Li
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
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