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Lu P, Peng Y, Bai J. Polyimide/Ag 2WO 4 Z-Scheme Heterojunction for Efficient Photocatalytic Degradation of Tetracycline. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12191-12199. [PMID: 38814134 DOI: 10.1021/acs.langmuir.4c01213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
It is of great significance to construct a Z-scheme heterojunction for improving solar light harvesting and achieving efficient separation of photogenerated carriers and then enhancement of the photocatalytic performance of semiconductor photocatalysts. Herein, the direct Z-scheme PI/Ag2WO4 heterojunction was designed and prepared according to the band edge potentials of the semiconductor. Due to the fact that the Z-scheme structure not only endowed the PI/Ag2WO4 composites with efficient separation of photogenerated electron-hole pairs but also reserved the redox ability of the valence band and conduction band of monophase catalysts, the 50% PI/Ag2WO4 heterojunction exhibited excellent photocatalytic activity, which were 2.9 and 1.5 times those of the PI and Ag2WO4 photocatalysts, respectively. The photocatalytic reaction mechanism of PI/Ag2WO4 composites was confirmed by the results of TEM, UV-vis, XPS, and EPR experiments. This work provides a feasible strategy to design high-performance photocatalysts in the field of practice purification of wastewater.
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Affiliation(s)
- Peng Lu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yuqi Peng
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Jinwu Bai
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
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2
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Du X, Zhang B, Lian Y, Jiang X, Li Y, Jiang D. A bulit-in self-calibration ratiometric self-powered photoelectrochemical sensor for high-precision and sensitive detection of microcystin-RR. Mikrochim Acta 2024; 191:379. [PMID: 38856817 DOI: 10.1007/s00604-024-06447-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/18/2024] [Indexed: 06/11/2024]
Abstract
A novel high-precision aptasensor of microcystin-RR (MC-RR) is developed based on a ratiometric self-powered photoelectrochemical platform. In detail, the defective MoS2/Ti3C2 nanocomposite with good photoelectric activity was designed to serve as the photoanode of the sensor for enhancing the signal and improving the detection sensitivity. In order to effectively eliminate external interferences, the key point of this ratiometric device is the introduction of the spatial-resolved technique, which includes the detection section and the reference section, generating reference signals and response signals, respectively. Moreover, output power was used as the detection signal, instead of the traditional photocurrent or photovoltage. Further, potassium persulfate was introduced as electron acceptor, which was beneficial for improving the electron transport efficiency, hindering electron-hole recombination, and significantly promoting the performance of the sensor. Finally, aptamer was adopted as recognition element to capture MC-RR molecules. The prepared sensor had a linear range from 10-12 to 10-6 M, and the detection limit was 5.6 × 10-13 M (S/N = 3). It has good precision, selectivity, and sensitivity, which shows great prospects in the on-site accurate analysis of samples with high energy output in the self-powered sensing field.
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Affiliation(s)
- Xiaojiao Du
- School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, 213032, Jiangsu, P.R. China.
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China.
| | - Bing Zhang
- School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, 213032, Jiangsu, P.R. China
| | - Yuebin Lian
- School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, 213032, Jiangsu, P.R. China
| | - Xiaoyan Jiang
- School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, 213032, Jiangsu, P.R. China
| | - Yan Li
- School of Photoelectric Engineering, Changzhou Institute of Technology, Changzhou, 213032, Jiangsu, P.R. China
| | - Ding Jiang
- Jiangsu Key Laboratory of Materials Surface Science and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, Jiangsu, P.R. China.
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3
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Han S, Wang Z, Zhu W, Yang H, Yang L, Wang Y, Zou Z. ZIF-derived oxygen vacancy-rich Co 3O 4 for constructing an efficient Z-scheme heterojunction to boost photocatalytic water splitting. Dalton Trans 2024; 53:4737-4752. [PMID: 38363114 DOI: 10.1039/d3dt03706a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
With ZIF-67 as the precursor, oxygen vacancy-rich Co3O4 nanoparticles were derived and anchored on the surface of 2D polyimide (PI) to construct a Z-scheme hybrid heterojunction (20ZP) through a simultaneous solvothermal in situ crystallization and polymerization strategy. XRD, XPS and EPR confirmed that both Co(III) and oxygen vacancies are formed during the low temperature conversion of ZIF-67 to Co3O4 nanoparticles that in turn accelerate the polymerization of PI. Synchronous crystallization makes the interfacial architecture intermetal and compact, inducing a strong interfacial electronic interaction between Co3O4 nanoparticles and PI. UV-vis DRS spectra and transient photocurrent response demonstrate that the incorporation of Co3O4 on polyimide not only extends the light absorption in the visible range, but also enhances the charge transfer rate. EIS, TRPL techniques and DFT calculations have confirmed that the photoinduced interfacial charge transfer pathway of this hybrid heterojunction characterized the Z-scheme in which the photoinduced electrons transfer from the conduction band of Co3O4 to the valence band of PI, significantly inhibiting the recombination of electrons and holes within PI. More importantly, the oxygen vacancies located below the conductor band of Co3O4 can deepen the band bending, improve the charge separation efficiency and accelerate electron transfer between Co3O4 and PI. This Z-scheme hybrid heterojunction structure can not only maintain the high reducing capacity of photoinduced electrons on the conductor band of PI, but also enhance the oxidative capacity of the heterojunction composite material, thus promoting the overall progress of the photocatalytic hydrogen release reaction.
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Affiliation(s)
- Susu Han
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Zejin Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Wenbo Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Huaizhi Yang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Le Yang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Ying Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China.
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
| | - Zhigang Zou
- Eco-Materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid-State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing University, Nanjing, 210023, PR China
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4
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Ma J, Liu X, Wang R, Lu C, Wen X, Tu G. Research Progress and Application of Polyimide-Based Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13040656. [PMID: 36839026 PMCID: PMC9961415 DOI: 10.3390/nano13040656] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 06/01/2023]
Abstract
Polyimide (PI) is one of the most dominant engineering plastics with excellent thermal, mechanical, chemical stability and dielectric performance. Further improving the versatility of PIs is of great significance, broadening their application prospects. Thus, integrating functional nanofillers can finely tune the individual characteristic to a certain extent as required by the function. Integrating the two complementary benefits, PI-based composites strongly expand applications, such as aerospace, microelectronic devices, separation membranes, catalysis, and sensors. Here, from the perspective of system science, the recent studies of PI-based composites for molecular design, manufacturing process, combination methods, and the relevant applications are reviewed, more relevantly on the mechanism underlying the phenomena. Additionally, a systematic summary of the current challenges and further directions for PI nanocomposites is presented. Hence, the review will pave the way for future studies.
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5
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Luo Z, Zhang D, Ma C, Zhu M, Li B, Song L, Yang S. Nanoarchitecture of a Two-Dimensional Few-Layer Graphene Oxide/π-Conjugated Polyimide Composite for Enhanced Photocatalytic Performance. ACS OMEGA 2023; 8:4072-4080. [PMID: 36743011 PMCID: PMC9893452 DOI: 10.1021/acsomega.2c07010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
A novel two-dimensional graphene oxide/sulfur-doped polyimide (GO/SPI) hybrid polymer photocatalyst was synthesized by a facile ultrasonic chemical method. The characterization results showed that the skeleton structure of SPI was not changed when the few layers of GO were wrapped on the surface. Due to the excellent charge transport characteristics of GO and the strong π-π stacking interaction between two-dimensional GO and SPI, the photogenerated carrier transport capability of the GO/SPI composites was significantly enhanced compared with that of SPI. The efficient transmission and separation of photogenerated charge carriers significantly improve the photocatalytic degradation of the methyl orange activity of the GO/SPI composite. This work provides a facile and new way for the synthesis of metal-free inorganic-organic composite photocatalysts with high efficiency and low cost.
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Zhang D, Ma C, Luo Z, Zhu M, Li B, Zhou L, Zhang G. Anchoring Co 3O 4 nanoparticles on conjugated polyimide ultrathin nanosheets: construction of a Z-scheme nano-heterostructure for enhanced photocatalytic performance. RSC Adv 2023; 13:853-865. [PMID: 36686918 PMCID: PMC9811246 DOI: 10.1039/d2ra06823k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Abstract
Efficient utilization of solar energy for photocatalytic hydrogen production and degradation of organic pollutants is one of the most promising approaches to solve the energy shortage and environmental pollution. A series of Co3O4/sulfur-doped polyimide (CO/SPI) direct Z-scheme nano-heterostructure photocatalysts was successfully prepared via a facile green thermal treatment method. The effects of Co3O4 nanoparticles on the structure, morphology, and optoelectronic properties of CO/SPI composite samples were systematically characterized by different spectroscopic methods. Characterization results confirmed that Co3O4 nanoparticles as an acid oxide catalyst promoted the oxidation stripping of bulk SPI to form SPI ultrathin nanosheets. Thus, the Co3O4 nanoparticles were firmly embedded on SPI ultrathin nanosheets to construct a direct Z-type CO/SPI nanostructure junction. Therefore, the activity and cycle stability of photocatalytic water splitting for hydrogen production and organic pollutant degradation were greatly improved under solar light irradiation. In particular, the 0.5CO/SPI composite sample displayed the highest activity with an average production rate of 127.2 μmol g-1 h-1, which is nearly 13 times and 106 times higher than that of SPI and Co3O4. This work provides a new avenue for constructing efficient inorganic-organic nanoheterostructured Z-type photocatalysts and takes an important step towards the efficient utilization of renewable energy.
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Affiliation(s)
- Duoping Zhang
- School of Chemical Engineering, Qinghai UniversityXining810016China
| | - Chenghai Ma
- School of Chemical Engineering, Qinghai UniversityXining810016China
| | - Zhiang Luo
- School of Chemical Engineering, Qinghai UniversityXining810016China
| | - Meitong Zhu
- School of Chemical Engineering, Qinghai UniversityXining810016China
| | - Binhao Li
- School of Chemical Engineering, Qinghai UniversityXining810016China
| | - Lian Zhou
- New Energy (Photovoltaic) Industry Research Center, Qinghai UniversityXining 810016China
| | - Guoyu Zhang
- New Energy (Photovoltaic) Industry Research Center, Qinghai UniversityXining 810016China
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Construction of Direct Z-Scheme SnS 2 Quantum Dots/Conjugated Polyimide with Superior Photocarrier Separation for Enhanced Photocatalytic Performances. Polymers (Basel) 2022; 14:polym14245483. [PMID: 36559850 PMCID: PMC9782883 DOI: 10.3390/polym14245483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
In this study, a novel direct Z-scheme SnS2 quantum dots/sulfur-doped polyimide (SQDs/SPI) photocatalyst was firstly fabricated by an in situ crystallization growth of SnS2 quantum dots on sulfur-doped polyimide through a facile hydrothermal method. The photocatalytic hydrogen production activity of 5SQDs/SPI samples reached 3526 μmoL g-1 in the coexistence of triethanolamine and methanol used as hole sacrificial agents, which is about 13 times higher than that of SPI under the same conditions and 42 times higher than that of SPI only as a hole sacrificial agent. The improvement can be related to the direct Z-scheme charge transfer in the tight interface between SQDs and SPI, which promoted rapid separation and significantly prolonged the lifetime of photoexcited carriers. The Z-scheme charge transfer mechanism was proposed. This discovery comes up with a new strategy for the development of an efficient, environmentally friendly, and sustainable sulfide quantum dots/polymer non-noble metal photocatalyst.
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8
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Ma Y, Li J, Cai J, Zhong L, Lang Y, Ma Q. Z-scheme g-C3N4/ZnS heterojunction photocatalyst: One-pot synthesis, interfacial structure regulation, and improved photocatalysis activity for bisphenol A. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Hu J, Zhao GQ, Wu LX, Sun C, Long X, Long XQ, Jiao FP. Designing and Fabricating a Vulcanized ZnAl LDH-Modified g-C 3N 4 Heterojunction for Enhanced Visible-Light-Driven Photocatalytic Degradation Activity. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Hu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Guo-qing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Li-xu Wu
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Chun Sun
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Xuan Long
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Xin-qi Long
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
| | - Fei-peng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha410083, People’s Republic of China
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10
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Huang Y, Wang Q, Zhang J, Yu Y, Dan Y, Jiang L. Better Choice for a Polyimide Photocatalyst: Planar or Stereo Crosslinked Structures? Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yun Huang
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering of China (Sichuan University), Chengdu 610065, China
| | - Qin Wang
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering of China (Sichuan University), Chengdu 610065, China
| | - Jianling Zhang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, Chongqing Technology & Business University, Chongqing 400067, China
| | - Yuyan Yu
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering of China (Sichuan University), Chengdu 610065, China
| | - Yi Dan
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering of China (Sichuan University), Chengdu 610065, China
| | - Long Jiang
- Polymer Research Institute of Sichuan University, State Key Laboratory of Polymer Materials Engineering of China (Sichuan University), Chengdu 610065, China
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Wang J, Yuan M, Li C, Zhang B, Zhu J, Hao X, Lu H, Ma Y. One-Step construction of Polyimide/NH 2-UiO-66 heterojunction for enhanced photocatalytic degradation of sulfonamides. J Colloid Interface Sci 2022; 612:536-549. [PMID: 35016017 DOI: 10.1016/j.jcis.2021.12.190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 12/15/2021] [Accepted: 12/30/2021] [Indexed: 01/20/2023]
Abstract
Photocatalysis treatment is a promising technology to eliminate water pollutants. Herein, we constructed polyimide/NH2-UiO-66 composites (PUs) through a facile one-step solvothermal method for the photocatalytic degradation of sulfonamides. The optimized photocatalyst PU1.5 was superior to the photocatalysts prepared through multi-step methods due to the more exposed (001) facets of polyimide and the better distribution of small NH2-UiO-66 particles. PU1.5 showed the highest photocatalytic activity, which was 9.5 and 92.0 times higher than that of polyimide and NH2-UiO-66. Such improvement was attributed to the improved carrier separation efficiency resulted from direct Z-scheme heterojunction. The probable degradation pathway of sulfathiazole was proposed by the LC-MS/MS and Density Functional Theory (DFT) calculation. Furthermore, the reduced toxicity and the little antibacterial activity of intermediates was investigated by the Quantitative Structure-Activity Relationship (QSAR) analysis and the residual antibiotic activity experiment. The study might provide a new strategy for designing composite photocatalyst to achieve efficient removal of pollutants.
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Affiliation(s)
- Jianli Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Meng Yuan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Changsheng Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Bingjie Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Jianhui Zhu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Xianghong Hao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Huizhe Lu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China
| | - Yongqiang Ma
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, P.R. China.
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12
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Ma C, Jiang M, Yang C, Yang Z, Meng W, Zhou L, Sun C, Chen W. Construction of α-Fe 2O 3/Sulfur-Doped Polyimide Direct Z-Scheme Photocatalyst with Enhanced Solar Light Photocatalytic Activity. ACS OMEGA 2022; 7:11371-11381. [PMID: 35415365 PMCID: PMC8992276 DOI: 10.1021/acsomega.2c00476] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
A novel two-dimensional α-Fe2O3/sulfur-doped polyimide (FO/SPI) direct Z-scheme photocatalyst was successfully constructed by a facile thermal treatment method. The effects of α-Fe2O3 nanosheets on the morphology, chemical structure, and photoelectronic properties of FO/SPI composites were systematically characterized by different spectroscopic means. These methods include X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, transient fluorescence spectra, and so forth. It was confirmed that the small amounts of α-Fe2O3 can availably facilitate exfoliation of bulk SPI, resulting in a transformation of SPI from bulk to 2D layered composite that illustrates tight interface through the coordination Fe-N bond and an all-solid-state direct Z-scheme junction. Thus, the transfer and separation efficiency of photogenerated electron/hole pairs were significantly enhanced, which greatly promoted improvement of the photocatalytic activity of the FO/SPI composite for methyl orange degradation under solar light. This work provides a new approach to constructing efficient inorganic-organic Z-scheme photocatalyst based on strong interface interaction.
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Affiliation(s)
- Chenghai Ma
- State
Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Mingyu Jiang
- State
Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Changqing Yang
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Zuan Yang
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Wei Meng
- New
Energy (Photovoltaic) Industry Research Center, Qinghai University, Xining 810016, China
| | - Lian Zhou
- New
Energy (Photovoltaic) Industry Research Center, Qinghai University, Xining 810016, China
| | - Chunyan Sun
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Wanqin Chen
- School
of Chemical Engineering, Qinghai University, Xining 810016, China
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13
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Shi YJ, Zhang J, Cui Z, Chu S, Wang Y, Zou Z. MOF-derived sulfur vacancies rich CdS nanoparticles in situ growth on 2D polymer for highly efficient photocatalytic hydrogen generation. Dalton Trans 2022; 51:5841-5858. [DOI: 10.1039/d1dt04188f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For heterojunction photocatalytic materials, the size of nanoparticles and electron-hole separation efficiency have a great influence on the photocatalytic hydrogen production activity. In this work, for the first time, a...
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14
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Hao X, Xiang D, Jin Z. Amorphous Co 3O 4 quantum dots hybridizing with 3D hexagonal CdS single crystals to construct a 0D/3D p-n heterojunction for a highly efficient photocatalytic H 2 evolution. Dalton Trans 2021; 50:10501-10514. [PMID: 34259290 DOI: 10.1039/d1dt01333e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Herein, a novel amorphous monodisperse Co3O4 quantum dots/3D hexagonal CdS single crystals (0D/3D Co3O4 QDs/CdS) p-n heterojunction was constructed by a simple hydrothermal and electrostatic self-assembly method. The amorphous monodispersed Co3O4 QDs (≈4.5 nm) are uniformly and tightly attached to the surface of the hexagonal CdS single crystals. The sample, 0.5% CQDs/CdS exhibits outstanding hydrogen evolution activity of 17.5 mmol h-1 g-1 with a turnover number (TON) of 4214, up to 10.3 times higher than that of pure CdS. The enhanced photocatalytic activity can be attributed to the synergistic effect of the p-n heterostructure and the quantum confinement effect of Co3O4 QDs, which significantly promoted the separation efficiency of photo-generated electrons and holes. Additionally, the sulfur vacancy also can act as electron trappers to improve carrier separation and electron transfer. The photoelectrochemical and time-resolved fluorescence (TRPL) results further certify the effective spatial charge separation. This work gives an insight into the design of the 0D/3D Co3O4 QDs/CdS p-n heterostructure for a highly efficient photocatalysis.
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Affiliation(s)
- Xuqiang Hao
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P.R. China. and Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P.R. China and Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, P.R. China
| | - Dingzhou Xiang
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P.R. China. and Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P.R. China and Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, P.R. China
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, P.R. China. and Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P.R. China and Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, P.R. China
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15
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Zou X, Zhao X, Zhang J, Lv W, Qiu L, Zhang Z. Photocatalytic degradation of ranitidine and reduction of nitrosamine dimethylamine formation potential over MXene-Ti 3C 2/MoS 2 under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125424. [PMID: 33621771 DOI: 10.1016/j.jhazmat.2021.125424] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 05/14/2023]
Abstract
Photocatalysis is an effective method to degrade ranitidine (RAN), which is a typical precursor of nitrosamine dimethylamine (NDMA), an extremely potent human carcinogen. Herein, MXene-Ti3C2/MoS2 composites were prepared by a hydrothermal treatment aiming to use them for the photocatalytic degradation of RAN and the reduction of NDMA formation potential (NDMA-FP) under visible light irradiation for the first time. The analysis of the morphology, chemical composition and structure of these composites as well as the results of electrochemical experiments showed that a heterojunction was formed between MoS2 and Ti3C2, which facilitated the separation of electron-hole pairs and charge transfer, and thereby the photocatalytic performance. The MXene-Ti3C2/MoS2 composite (MT-4) exhibited the best photocatalytic performance in 60 min, with the highest RAN degradation and mineralization efficiencies of 88.4% and 73.58%, and the lowest NDMA-FP of 2.01%. Active species, including •O2- radicals, h+ and •OH radicals, all contributed to the degradation of RAN, among which •OH radicals were the main active species involved in the photocatalytic activity. The mechanism of the photocatalytic degradation of RAN over MXene-Ti3C2/MoS2 photocatalyst under visible light irradiation was proposed. This work opens up a new perspective on the applications of MXene-based materials for photocatalytic degradation of challenging pollutants.
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Affiliation(s)
- Xue Zou
- Institute of Environmental Engineering & Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China
| | - Xuesong Zhao
- Institute of Environmental Engineering & Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China
| | - Jiaxing Zhang
- Institute of Environmental Engineering & Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China
| | - Wei Lv
- Shenzhen Geim Graphene Center, Engineering Laboratory for Functionalized Carbon Materials, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China
| | - Ling Qiu
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China
| | - Zhenghua Zhang
- Institute of Environmental Engineering & Nano-Technology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China; School of Environment, Tsinghua University, Beijing 100084, China.
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16
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Huang L, Yang Y, Zhang C, Yu H, Wang T, Dong X, Li D, Liu Z. A nanostructured MoO 2/MoS 2/MoP heterojunction electrocatalyst for the hydrogen evolution reaction. NANOTECHNOLOGY 2020; 31:225403. [PMID: 32059207 DOI: 10.1088/1361-6528/ab767a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electrocatalytic production of hydrogen from water is considered to be a promising and sustainable strategy. In this work, the low-cost nanostructured MoO2/MoS2/MoP heterojunction is successfully synthesized by phosphorization of the pre-prepared urchin-like MoO2/MoS2 nanospheres as the stable, highly efficient electrocatalysis for the hydrogen evolution reaction (HER). The MoO2/MoS2/MoP-800 (MoO2/MoS2 nanospheres are phosphated at 800 °C) displays a catalytic ability for the HER with an overpotential of 135 mV to achieve 10 mA cm-2 and a Tafel slope of 67 mV dec-1 in 0.5 M H2SO4, which is superior to MoO2/MoS2 nanospheres (200 °C; 24 h), MoO2/MoS2/MoP-700 (MoO2/MoS2 nanospheres are phosphated at 700 °C) and MoO2/MoS2/MoP-900 (MoO2/MoS2 nanospheres are phosphated at 900 °C). Meanwhile, the catalyst exhibits superior properties for HER with an overpotential of 145 mV to achieve 10 mA cm-2 and a Tafel slope of 71 mV dec-1 in 1 M KOH solution. Detailed characterizations reveal that the improved HER performances are significantly related to P-doping and the spherical nanostructure. This work not only provides a low-cost selective for electrocatalytic production of hydrogen, but also serves as a guide to optimize the composition and structure of nanocomposites.
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Affiliation(s)
- Licheng Huang
- Changchun University of Science and Technology Key Laboratory of Applied Chemistry and Nanotechnology, Changchun, 130022, People's Republic of China
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17
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Soares DM, Singh G. SiOC functionalization of MoS 2 as a means to improve stability as sodium-ion battery anode. NANOTECHNOLOGY 2020; 31:145403. [PMID: 31860890 DOI: 10.1088/1361-6528/ab6480] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of feasible, scalable, and environmentally-safe electrode materials that provide stable cycling performance are critical for success of beyond lithium rechargeable batteries and supercapacitors. With respect to the sodium-ion battery (SIB) anodes constituting of transition metal dichalcogenides such as molybdenum disulfide (MoS2), poor cycle stability and fast capacity degradation, due to low electronic conductivity and dissolution of chemical species in the electrolyte, hinders use of these promising layered materials as SIB anodes. Herein we report chemical functionalization in MoS2 nanosheets with polymer-derived silicon oxycarbide or SiOC with the aim to preserve MoS2 from dissolution in the SIB organic electrolyte, without compromising its role in sodiation and desodiation processes. Our results suggest that a MoS2-SiOC composite electrode is effective in bringing improved cycle stability to sodium-ion cycling over neat MoS2 even after 100 cycles.
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Affiliation(s)
- Davi Marcelo Soares
- Mechanical and Nuclear Engineering Department, Kansas State University, Manhattan, Kansas 66506, United States of America
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18
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Yu K, Huang HB, Zeng XY, Xu JY, Yu XT, Liu HX, Cao HL, Lü J, Cao R. CdZnS nanorods with rich sulphur vacancies for highly efficient photocatalytic hydrogen production. Chem Commun (Camb) 2020; 56:7765-7768. [DOI: 10.1039/d0cc00522c] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A 1D CdZnS nanorod solid solution with rich sulfur vacancies achieved excellent photocatalytic hydrogen production under visible irradiation.
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Affiliation(s)
- Kai Yu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Hai-Bo Huang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- P. R. China
| | - Xue-Yu Zeng
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Jian-Ying Xu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Xu-Teng Yu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Heng-Xin Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Hai-Lei Cao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation
- College of Resources and Environment
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Rong Cao
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou 350002
- P. R. China
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19
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Song H, Wang N, Meng H, Han Y, Wu J, Xu J, Xu Y, Zhang X, Sun T. A facile synthesis of a ZIF-derived ZnS/ZnIn2S4 heterojunction and enhanced photocatalytic hydrogen evolution. Dalton Trans 2020; 49:10816-10823. [DOI: 10.1039/d0dt02141e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel heterostructure of ZIF-derived ZnS/ZnIn2S4 is formed by nano-ZnS uniformly dispersed in ZnIn2S4 flower, which displays enhanced photocatalytic reactions.
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Affiliation(s)
- Huihui Song
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Na Wang
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Hao Meng
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Yide Han
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Junbiao Wu
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Junli Xu
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Yan Xu
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Xia Zhang
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Ting Sun
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
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20
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Guo S, Tan W, Qiu J, Du J, Yang Z, Wang X. Classification of Spatially Confined Reactions and the Electrochemical Applications of Molybdenum-Based Nanocomposites. Aust J Chem 2020. [DOI: 10.1071/ch19505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
As a popular material synthesis method, spatially confined reactions have been gradually recognised for their excellent performance in the field of current materials synthesis. In recent years, molybdenum-based catalysts have gradually gained recognition due to high natural reserves of Mo, its low cost, and many other advantages, and they have wide applications in the area of functional materials, especially in topical areas such as batteries and electrocatalysts. In this context, spatially confined reactions have become widely to obtain various types of molybdenum-based electrode materials and electrocatalysts which result in an excellent morphology, structure, and performance. In this review, the concept of a spatially confined reaction system and the electrochemical application (electrode materials and electrocatalyst) of molybdenum-based materials synthesised in this way are comprehensively discussed. The current problems and future development and application of molybdenum-based materials are also discussed in this review.
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21
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Two dimensional metal-organic frameworks-derived leaf-like Co4S3/CdS composite for enhancing photocatalytic water evolution. J Colloid Interface Sci 2019; 554:39-47. [DOI: 10.1016/j.jcis.2019.06.098] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 11/17/2022]
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22
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BiFeO3/MoS2 nanocomposites with the synergistic effect between ≡MoVI/≡MoIV and ≡FeIII/≡FeII redox cycles for enhanced Fenton-like activity. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123607] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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23
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Photocatalytic Hydrogen Production: Role of Sacrificial Reagents on the Activity of Oxide, Carbon, and Sulfide Catalysts. Catalysts 2019. [DOI: 10.3390/catal9030276] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Photocatalytic water splitting is a sustainable technology for the production of clean fuel in terms of hydrogen (H2). In the present study, hydrogen (H2) production efficiency of three promising photocatalysts (titania (TiO2-P25), graphitic carbon nitride (g-C3N4), and cadmium sulfide (CdS)) was evaluated in detail using various sacrificial agents. The effect of most commonly used sacrificial agents in the recent years, such as methanol, ethanol, isopropanol, ethylene glycol, glycerol, lactic acid, glucose, sodium sulfide, sodium sulfite, sodium sulfide/sodium sulfite mixture, and triethanolamine, were evaluated on TiO2-P25, g-C3N4, and CdS. H2 production experiments were carried out under simulated solar light irradiation in an immersion type photo-reactor. All the experiments were performed without any noble metal co-catalyst. Moreover, photolysis experiments were executed to study the H2 generation in the absence of a catalyst. The results were discussed specifically in terms of chemical reactions, pH of the reaction medium, hydroxyl groups, alpha hydrogen, and carbon chain length of sacrificial agents. The results revealed that glucose and glycerol are the most suitable sacrificial agents for an oxide photocatalyst. Triethanolamine is the ideal sacrificial agent for carbon and sulfide photocatalyst. A remarkable amount of H2 was produced from the photolysis of sodium sulfide and sodium sulfide/sodium sulfite mixture without any photocatalyst. The findings of this study would be highly beneficial for the selection of sacrificial agents for a particular photocatalyst.
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24
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Chandrasekaran S, Yao L, Deng L, Bowen C, Zhang Y, Chen S, Lin Z, Peng F, Zhang P. Recent advances in metal sulfides: from controlled fabrication to electrocatalytic, photocatalytic and photoelectrochemical water splitting and beyond. Chem Soc Rev 2019; 48:4178-4280. [DOI: 10.1039/c8cs00664d] [Citation(s) in RCA: 540] [Impact Index Per Article: 108.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review describes an in-depth overview and knowledge on the variety of synthetic strategies for forming metal sulfides and their potential use to achieve effective hydrogen generation and beyond.
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Affiliation(s)
| | - Lei Yao
- Shenzhen Key Laboratory of Special Functional Materials
- Guangdong Research Center for Interfacial Engineering of Functional Materials
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
| | - Libo Deng
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Chris Bowen
- Department of Mechanical Engineering
- University of Bath
- Bath
- UK
| | - Yan Zhang
- Department of Mechanical Engineering
- University of Bath
- Bath
- UK
| | - Sanming Chen
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Zhiqun Lin
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Feng Peng
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou
- China
| | - Peixin Zhang
- College of Chemistry and Environmental Engineering
- Shenzhen University
- Shenzhen 518060
- China
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25
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Wang J, Ma C, Mu X, Cai W, Liu L, Zhou X, Hu W, Hu Y. Construction of multifunctional MoSe 2 hybrid towards the simultaneous improvements in fire safety and mechanical property of polymer. JOURNAL OF HAZARDOUS MATERIALS 2018; 352:36-46. [PMID: 29571027 DOI: 10.1016/j.jhazmat.2018.03.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/02/2018] [Accepted: 03/03/2018] [Indexed: 06/08/2023]
Abstract
Organic modification of MoSe2 sheets is firstly achieved by Atherton-Todd reaction, aiming at the acquisition of multifunctional MoSe2 hybrid. Simultaneous enhancements in fire safety and mechanical property of thermalplastic polyurethane (TPU) are obtained with the presence of this hybrid. Strong interfacial interactions between the functionalized MoSe2 sheets and TPU can be obtained, making more efficient load transfer from the weak polymer chains to the robust sheets. Besides, more coherent barrier network may be formed in polymer matrix, restraining the diffusion of decomposed fragments and reducing the supply for combustion fuel. Consequently, the decreases in heat release are observed for polymer composites. Notably, the releases of toxic gases, such as HCN and CO, are also suppressed by this barrier network, resulting in the reductions in fire toxicity. This work may open a new door for the functionalization of MoSe2 sheets and evoke significant developments in its promising applications.
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Affiliation(s)
- Junling Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Chao Ma
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Xiaowei Mu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Wei Cai
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Longxiang Liu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Xia Zhou
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Weizhao Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China.
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
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26
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Xu Y, Wang X, Zhang WL, Lv F, Guo S. Recent progress in two-dimensional inorganic quantum dots. Chem Soc Rev 2018; 47:586-625. [DOI: 10.1039/c7cs00500h] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review critically summarizes recent progress in the categories, synthetic routes, properties, functionalization and applications of 2D materials-based quantum dots (QDs).
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Affiliation(s)
- Yuanhong Xu
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Xiaoxia Wang
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Wen Ling Zhang
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Fan Lv
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- China
| | - Shaojun Guo
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- China
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27
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Wang X, Chen S, Zhang M, Huang Y, Feng S, Zhao D. MoS2 quantum dot-modified Ag/polyaniline composites with enhanced photogenerated carrier separation for highly efficient visible light photocatalytic H2 evolution performance. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01073g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform heterostructured MoS2 QDs–Ag/PANI composites are fabricated, which exhibit significantly enhanced photocatalytic activity for H2 production under visible light irradiation.
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Affiliation(s)
- Xiufang Wang
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
| | - Shaohua Chen
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
| | - Miaomiao Zhang
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
| | - Youyou Huang
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
| | - Shaojie Feng
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
| | - Donglin Zhao
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P.R. China
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28
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Tang X, Zhao JH, Li YH, Zhou ZJ, Li K, Liu FT, Lan YQ. Co-Doped Zn1−xCdxS nanocrystals from metal–organic framework precursors: porous microstructure and efficient photocatalytic hydrogen evolution. Dalton Trans 2017; 46:10553-10557. [DOI: 10.1039/c7dt01970j] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoporous Co-doped Zn1−xCdxS fabricated with ZnCo-ZIFs as templates afford a high H2-production rate, corresponding to 45.2 and 422.2 times larger than those of Zn0.5Cd0.5S and CdS without using ZIF as template.
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Affiliation(s)
- Xiu Tang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Jia-Hui Zhao
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Yu-Han Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Zi-Ji Zhou
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Kui Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Fu-Tian Liu
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Ya-Qian Lan
- Jiangsu Key Laboratory of Biofunctional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- P. R. China
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29
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Liu Y, Xie Y, Liu L, Jiao J. Sulfur vacancy induced high performance for photocatalytic H2 production over 1T@2H phase MoS2 nanolayers. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01488k] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mo-precursor has great impact on the morphology, surface chemistry and photocatalytic activity of MoS2 nanostructure.
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Affiliation(s)
- Yuying Liu
- College of Environment and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- P. R. China
| | - Yu Xie
- College of Environment and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- P. R. China
| | - Lianjun Liu
- College of Environment and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- P. R. China
| | - Julong Jiao
- College of Environment and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- P. R. China
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