1
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Gai Q, Ren S, Zheng X, Liu W. Enhanced plasmonic photocatalytic performance of C 3N 4/Cu by the introduction of a reduced graphene oxide interlayer. Phys Chem Chem Phys 2023; 25:12754-12766. [PMID: 37128700 DOI: 10.1039/d3cp01118f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Cu nanoparticles (NPs) are low-cost surface plasmonic resonance (SPR) metal nanostructures, and their SPR properties can be used to enhance the photocatalytic hydrogen evolution performance of carbon nitride (C3N4). But their actual performance is usually limited, and one key factor is their poor interfacial quality. In this work, a highly conductive reduced graphene oxide (RGO) interlayer is introduced between protonated C3N4 (PCN) nanosheets and Cu NPs, which can act as an efficient sink for photogenerated electrons from C3N4 and hot electrons from Cu NPs, and simultaneously serve as reaction sites for the hydrogen evolution reaction, and accelerate the charge transport by the formed C-O-C and C-O-Cu bonds. The optimal hydrogen evolution rate of the optimized PCN/RGO/Cu is 1.30 mmol g-1 h-1, which is 6.76, 2.47 and 2.41 times that of PCN, PCN/RGO and PCN/Cu, respectively, and it can further reach up to 13.22 mmol g-1 h-1 by loading moderate Pt NPs. Meanwhile, the introduced RGO can effectively anchor Cu NPs to enhance the stability of the photocatalyst. In addition, due to the broad SPR response of Cu NPs, a near-infrared photocatalytic performance is realized for PCN/RGO/Cu with an apparent quantum efficiency of 0.46% at 765 nm.
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Affiliation(s)
- Qixiao Gai
- Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, P. R. China.
- Department of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Shoutian Ren
- Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, P. R. China.
| | - Xiaochun Zheng
- Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, P. R. China.
- Department of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Wenjun Liu
- Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, P. R. China.
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2
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Wang S, Cai B, Tian H. Efficient Generation of Hydrogen Peroxide and Formate by an Organic Polymer Dots Photocatalyst in Alkaline Conditions. Angew Chem Int Ed Engl 2022; 61:e202202733. [PMID: 35299290 PMCID: PMC9324198 DOI: 10.1002/anie.202202733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Indexed: 02/02/2023]
Abstract
A photocatalyst comprising binary organic polymer dots (Pdots) was prepared. The Pdots were constructed from poly(9,9-dioctylfluorene-alt-benzothiadiazole), as an electron donor, and 1-[3-(methoxycarbonyl)propyl]-1-phenyl-[6.6]C61 , as an electron acceptor. The photocatalyst produces H2 O2 in alkaline conditions (1 M KOH) with a production rate of up to 188 mmol h-1 g-1 . The external quantum efficiencies were 30 % (5 min) and 14 % (75 min) at 450 nm. Furthermore, photo-oxidation of methanol by Pdots, followed by a disproportionation reaction and an oxidation reaction, produced the high-value chemical formate. On the basis of various spectroscopic and electrochemical measurements, the photophysical processes of the system were studied in detail and a reaction mechanism was proposed.
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Affiliation(s)
- Sicong Wang
- Department of Chemistry—Ångström LaboratoryUppsala University751 20UppsalaSweden
| | - Bin Cai
- Department of Chemistry—Ångström LaboratoryUppsala University751 20UppsalaSweden
| | - Haining Tian
- Department of Chemistry—Ångström LaboratoryUppsala University751 20UppsalaSweden
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3
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Wang S, Cai B, Tian H. Efficient Generation of Hydrogen Peroxide and Formate by an Organic Polymer Dots Photocatalyst in Alkaline Conditions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sicong Wang
- Uppsala Universitet Department of Chemistry - Ångström laboratory SWEDEN
| | - Bin Cai
- Uppsala Universitet Department of Chemistry - Ångström laboratory SWEDEN
| | - Haining Tian
- Uppsala University: Uppsala Universitet Department of Chemistry-Ångström Lab BOX 523 75120 Uppsala SWEDEN
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4
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Boosting Photoelectrochemical Water Splitting by Au@Pt modified ZnO/CdS with Synergy of Au-S Bonds and Surface Plasmon Resonance. J Catal 2022. [DOI: 10.1016/j.jcat.2022.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Ezendam S, Herran M, Nan L, Gruber C, Kang Y, Gröbmeyer F, Lin R, Gargiulo J, Sousa-Castillo A, Cortés E. Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction. ACS ENERGY LETTERS 2022; 7:778-815. [PMID: 35178471 PMCID: PMC8845048 DOI: 10.1021/acsenergylett.1c02241] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/07/2022] [Indexed: 05/05/2023]
Abstract
The successful development of artificial photosynthesis requires finding new materials able to efficiently harvest sunlight and catalyze hydrogen generation and carbon dioxide reduction reactions. Plasmonic nanoparticles are promising candidates for these tasks, due to their ability to confine solar energy into molecular regions. Here, we review recent developments in hybrid plasmonic photocatalysis, including the combination of plasmonic nanomaterials with catalytic metals, semiconductors, perovskites, 2D materials, metal-organic frameworks, and electrochemical cells. We perform a quantitative comparison of the demonstrated activity and selectivity of these materials for solar fuel generation in the liquid phase. In this way, we critically assess the state-of-the-art of hybrid plasmonic photocatalysts for solar fuel production, allowing its benchmarking against other existing heterogeneous catalysts. Our analysis allows the identification of the best performing plasmonic systems, useful to design a new generation of plasmonic catalysts.
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Affiliation(s)
- Simone Ezendam
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Matias Herran
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Lin Nan
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Christoph Gruber
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Yicui Kang
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Franz Gröbmeyer
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Rui Lin
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Julian Gargiulo
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Ana Sousa-Castillo
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
| | - Emiliano Cortés
- Faculty
of Physics, Ludwig-Maximilians-Universität, 80539 München, Germany
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6
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Zheng Y, Shi J, Xu H, Jin X, Ou Y, Wang Y, Li C. The bifunctional Lewis acid site improved reactive oxygen species production: a detailed study of surface acid site modulation of TiO2 using ethanol and Br−. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01760h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Modulation of surface acid sites (SAS) can effectively enhance the efficiency of reactive oxygen species (ROS) production.
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Affiliation(s)
- Yi Zheng
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
| | - Junqing Shi
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
| | - Haiming Xu
- Sch Environm Engn, Wuhan Text Univ, Wuhan 430073, China
| | - Xingzhi Jin
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
| | - Yujing Ou
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
| | - Yi Wang
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
| | - Chunlei Li
- School of Petrochemical Engineering, Lanzhou University of Technology, Pengjiaping Road No. 36, Lanzhou 730050, China
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7
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Kumar A, Choudhary P, Kumar A, Camargo PHC, Krishnan V. Recent Advances in Plasmonic Photocatalysis Based on TiO 2 and Noble Metal Nanoparticles for Energy Conversion, Environmental Remediation, and Organic Synthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2101638. [PMID: 34396695 DOI: 10.1002/smll.202101638] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/06/2021] [Indexed: 05/24/2023]
Abstract
Plasmonic photocatalysis has emerged as a prominent and growing field. It enables the efficient use of sunlight as an abundant and renewable energy source to drive a myriad of chemical reactions. For instance, plasmonic photocatalysis in materials comprising TiO2 and plasmonic nanoparticles (NPs) enables effective charge carrier separation and the tuning of optical response to longer wavelength regions (visible and near infrared). In fact, TiO2 -based materials and plasmonic effects are at the forefront of heterogeneous photocatalysis, having applications in energy conversion, production of liquid fuels, wastewater treatment, nitrogen fixation, and organic synthesis. This review aims to comprehensively summarize the fundamentals and to provide the guidelines for future work in the field of TiO2 -based plasmonic photocatalysis comprising the above-mentioned applications. The concepts and state-of-the-art description of important parameters including the formation of Schottky junctions, hot electron generation and transfer, near field electromagnetic enhancement, plasmon resonance energy transfer, scattering, and photothermal heating effects have been covered in this review. Synthetic approaches and the effect of various physicochemical parameters in plasmon-mediated TiO2 -based materials on performances are discussed. It is envisioned that this review may inspire and provide insights into the rational development of the next generation of TiO2 -based plasmonic photocatalysts with target performances and enhanced selectivities.
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Affiliation(s)
- Ajay Kumar
- School of Basic Sciences and Adv. Mater. Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Priyanka Choudhary
- School of Basic Sciences and Adv. Mater. Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Ashish Kumar
- School of Basic Sciences and Adv. Mater. Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
| | - Pedro H C Camargo
- University of Helsinki, Department of Chemistry, A.I. Virtasen aukio 1, Helsinki, Finland
| | - Venkata Krishnan
- School of Basic Sciences and Adv. Mater. Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, 175075, India
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8
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Lin TH, Wu MC, Chiang KP, Chang YH, Hsu JF, Hsu KH, Lee KM. Unveiling the surface precipitation effect of Ag ions in Ag-doped TiO2 nanofibers synthesized by one-step hydrothermal method for photocatalytic hydrogen production. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Wang R, Wang Y, Mao S, Hao X, Duan X, Wen Y. Different Morphology MoS2 Over the g-C3N4 as a Boosted Photo-Catalyst for Pollutant Removal Under Visible-Light. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01626-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Zhang Q, Liu Y, Xu Z, Zhao Y, Chaker M, Ma D. Optimized design and mechanistic understanding of plasmon and upconversion enhanced broadband photocatalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Thakur A, Kumar P, Kaur D, Devunuri N, Sinha RK, Devi P. TiO 2 nanofibres decorated with green-synthesized P Au/Ag@CQDs for the efficient photocatalytic degradation of organic dyes and pharmaceutical drugs. RSC Adv 2020; 10:8941-8948. [PMID: 35496552 PMCID: PMC9050055 DOI: 10.1039/c9ra10804a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 01/31/2020] [Indexed: 01/05/2023] Open
Abstract
Organic pollutants such as dyes and pharmaceutical drugs have become an environmental menace, particularly in water bodies owing to their unregulated discharge. It is thus required to develop an economically viable and environment-friendly approach for their degradation in water bodies. In this study, for the first time, we report green route-synthesized plasmonic nanostructures (PM-CQDs (where M: Au and Ag)) decorated onto TiO2 nanofibers for the treatment of toxic dye- and pharmaceutical drug-based wastewater. PM-CQDs are efficaciously synthesized using carbon quantum dots (CQDs) as the sole reducing and capping agent, wherein CQDs are derived via a green synthesis approach from Citrus limetta waste. The characteristic electron-donating property of CQDs played a key role in the reduction of Au3+ to Au0 and Ag+ to Ag0 under visible light irradiation to obtain PAu-CQDs and PAg-CQDs, respectively. Thus, the obtained CQDs, PAu-CQDs, and PAg-CQDs are loaded onto TiO2 nanofibers to obtain a PM-CQD/TiO2 nanocomposite (NC), and are further probed via transmission electron microscopy, scanning electron microscopy and UV-visible spectrophotometry. The degradation of organic pollutants and pharmaceutical drugs using methylene blue and erythromycin as model pollutants is mapped with UV-vis and NMR spectroscopy. The results demonstrate the complete MB dye degradation in 20 minutes with 1 mg mL-1 of PAu-CQD/TiO2 NC, which otherwise is 30 minutes for PAg@CQD/TiO2 dose under visible light irradiation. Similarly, the pharmaceutical drug was found to degrade in 150 minutes with PAu-CQD/TiO2 photocatalysts. These findings reveal the enhanced photocatalytic performance of the green-synthesized Au decorated with TiO2 nanofibers and are attributed to the boosted SPR effect and aqueous-phase stability of Au nanostructures. This study opens a new domain of utilizing waste-derived and green-synthesized plasmonic nanostructures for the degradation of toxic/hazardous dyes and pharmaceutical pollutants in water.
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Affiliation(s)
- Anupma Thakur
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
- CSIR-Central Scientific Instruments Organisation Sector-30 C Chandigarh-160030 India
| | - Praveen Kumar
- School of Materials Science, Indian Association for the Cultivation of Science Kolkata-700030 India
| | - Devinder Kaur
- CSIR-Central Scientific Instruments Organisation Sector-30 C Chandigarh-160030 India
| | - Nagaraju Devunuri
- Vignan's Foundation for Science, Technology & Research Guntur Andhra Pradesh - 522213 India
| | - R K Sinha
- CSIR-Central Scientific Instruments Organisation Sector-30 C Chandigarh-160030 India
| | - Pooja Devi
- CSIR-Central Scientific Instruments Organisation Sector-30 C Chandigarh-160030 India
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12
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Yu G, Qian J, Zhang P, Zhang B, Zhang W, Yan W, Liu G. Collective excitation of plasmon-coupled Au-nanochain boosts photocatalytic hydrogen evolution of semiconductor. Nat Commun 2019; 10:4912. [PMID: 31664023 PMCID: PMC6820756 DOI: 10.1038/s41467-019-12853-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/06/2019] [Indexed: 11/21/2022] Open
Abstract
Localized surface plasmon resonance (LSPR) offers a valuable opportunity to improve the efficiency of photocatalysts. However, plasmonic enhancement of photoconversion is still limited, as most of metal-semiconductor building blocks depend on LSPR contribution of isolated metal nanoparticles. In this contribution, the concept of collective excitation of embedded metal nanoparticles is demonstrated as an effective strategy to enhance the utilization of plasmonic energy. The contribution of Au-nanochain to the enhancement of photoconversion is 3.5 times increase in comparison with that of conventional isolated Au nanoparticles. Experimental characterization and theoretical simulation show that strongly coupled plasmonic nanostructure of Au-nanochain give rise to highly intensive electromagnetic field. The enhanced strength of electromagnetic field essentially boosts the formation rate of electron-hole pair in semiconductor, and ultimately improves photocatalytic hydrogen evolution activity of semiconductor photocatalysts. The concept of embedded coupled-metal nanostructure represents a promising strategy for the rational design of high-performance photocatalysts. Plasmonic effect offers a valuable opportunity to improve the efficiency of semiconductor, photocatalysts. Here, the authors show that the collective excitation of plasmonic metal, nanoparticles is more favorable for enhancing the utilization of plasmonic energy by, semiconductors.
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Affiliation(s)
- Guiyang Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, 130012, Changchun, China
| | - Jun Qian
- School of Physics, Nankai University, 300071, Tianjin, China
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, B3H4R2, Canada
| | - Bo Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, 130012, Changchun, China
| | - Wenxiang Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, 130012, Changchun, China
| | - Wenfu Yan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, 130012, Changchun, China
| | - Gang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, 130012, Changchun, China.
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Wang Q, Domen K. Particulate Photocatalysts for Light-Driven Water Splitting: Mechanisms, Challenges, and Design Strategies. Chem Rev 2019; 120:919-985. [PMID: 31393702 DOI: 10.1021/acs.chemrev.9b00201] [Citation(s) in RCA: 735] [Impact Index Per Article: 147.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Solar-driven water splitting provides a leading approach to store the abundant yet intermittent solar energy and produce hydrogen as a clean and sustainable energy carrier. A straightforward route to light-driven water splitting is to apply self-supported particulate photocatalysts, which is expected to allow solar hydrogen to be competitive with fossil-fuel-derived hydrogen on a levelized cost basis. More importantly, the powder-based systems can lend themselves to making functional panels on a large scale while retaining the intrinsic activity of the photocatalyst. However, all attempts to generate hydrogen via powder-based solar water-splitting systems to date have unfortunately fallen short of the efficiency values required for practical applications. Photocatalysis on photocatalyst particles involves three sequential steps: (i) absorption of photons with higher energies than the bandgap of the photocatalysts, leading to the excitation of electron-hole pairs in the particles, (ii) charge separation and migration of these photoexcited carriers, and (iii) surface chemical reactions based on these carriers. In this review, we focus on the challenges of each step and summarize material design strategies to overcome the obstacles and limitations. This review illustrates that it is possible to employ the fundamental principles underlying photosynthesis and the tools of chemical and materials science to design and prepare photocatalysts for overall water splitting.
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Affiliation(s)
- Qian Wang
- Department of Chemical System Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Kazunari Domen
- Department of Chemical System Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.,Center for Energy & Environmental Science , Shinshu University , 4-17-1 Wakasato , Nagano-shi , Nagano 380-8553 , Japan
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14
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Yang H, Zhang S, Li M, Liu X, Han J, Zhu X, Ge Q, Wang H. Hollow Au-ZnO/CN Nanocages Derived from ZIF-8 for Efficient Visible-Light-Driven Hydrogen Evolution from Formaldehyde Alkaline Solution. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hongchen Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Shengbo Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Mei Li
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Xiao Liu
- College of Chemistry; Central China Normal University; 430079 Wuhan China
| | - Jinyu Han
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Xinli Zhu
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Qingfeng Ge
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
- Department of Chemistry and Biochemistry; Southern Illinois University; 62901 Carbondale IL United States
| | - Hua Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
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15
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Liu Y, Chen F, Wang Q, Wang J, Wang J, Guo L, Gebremariam TT. Plasmonic-enhanced catalytic activity of methanol oxidation on Au-graphene-Cu nanosandwiches. NANOSCALE 2019; 11:8812-8824. [PMID: 31011725 DOI: 10.1039/c9nr00361d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The plasmonic-enhanced catalytic activity of methanol oxidation on Au-based catalysts provides a promising strategy for direct methanol fuel cells (DMFCs) to avoid the CO poisoning of traditional Pt-based catalysts. However, the effect of surface plasmon resonance on the light-enhanced methanol oxidation activity of Au or Au-based catalysts has not been fully understood. The mechanism by which hot plasmonic carriers participate in the methanol oxidation reaction (MOR) has not been elucidated. Herein, Au nanoparticles (Au NPs) are loaded on a support of single-layer graphene-Cu contacts (SG/Cu) to construct a nanosandwich structure of a Au-graphene-Cu catalytic electrode (Au-n/SG/Cu). The Au-6T/SG/Cu catalytic electrode exhibits an MOR catalytic activity of approximately 288 μA μg-1 under simulated solar light irradiation, which is approximately 1.7 times higher than that without irradiation. The chemisorption capacity of OH- anions is enhanced on the Au-6T/SG/Cu catalytic electrode compared with the pure Au NP surface. The adsorbed OH- anions are oxidised into ˙OH radicals by the trapped positive holes on the Au NP surface. These OH radicals possessed a high oxidation capacity for the direct oxidation of HCOO- intermediates and promoted the complete methanol oxidation on Au NPs, which is beneficial for improving the fuel efficiency of DMFCs.
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Affiliation(s)
- Yaxing Liu
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China.
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16
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Wang H, Jin Z. Boosting photocatalytic hydrogen evolution achieved by rationally designed/constructed carbon nitride with ternary cobalt phosphosulphide. J Colloid Interface Sci 2019; 548:303-311. [PMID: 31009848 DOI: 10.1016/j.jcis.2019.04.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/09/2019] [Accepted: 04/14/2019] [Indexed: 11/30/2022]
Abstract
Photocatalytic hydrogen production has been emerged as a promising method to solve the issue of energy shortage, however, how to design high-performance photocatalysts is an urgent problem. Recently, cobalt phosphosulfide (CoPS) has been confirmed to be an effective catalyst for energy conversion and storage. Nevertheless, combining the CoPS with other non-metallic catalysts for efficient photocatalytic hydrogen production has rarely reported. Hence, in this work, we fabricated a series of ternary CoPS and carbon nitride (CN) composite materials by using cobalt, phosphorus and sulfur as donors and CN as underlying support or substrate, respectively. As expected, the obtained CoPS(x)/CN catalysts exhibited obviously enhanced photocatalytic hydrogen evolution activity and the corresponding results of hydrogen production were measured in different pH reaction system by using offline statistics. Specifically, the CoPS(0.25)/CN catalysts reveals a remarkable hydrogen production of 14.12 mmol/g in an EY sensitized 15% (v/v) TEOA aqueous solution under visible light irradiation (λ ≥ 420 nm), which attributes to the formed interfaces between CoPS and CN with strong bonding, electronic interactions or synergistic effects that can constitute more active centers than individual component.
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Affiliation(s)
- Haiyu Wang
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, PR China; Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, PR China; Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, PR China; Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, PR China; Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China.
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17
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Boosting interfacial charge migration of TiO2/BiVO4 photoanode by W doping for photoelectrochemical water splitting. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.106] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Yang X, Wu X, Li J, Liu Y. TiO2–Au composite nanofibers for photocatalytic hydrogen evolution. RSC Adv 2019; 9:29097-29104. [PMID: 35528418 PMCID: PMC9071834 DOI: 10.1039/c9ra05113a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/09/2019] [Indexed: 01/10/2023] Open
Abstract
TiO2-based materials for photocatalytic hydrogen (H2) evolution have attracted much interest as a renewable approach for clean energy applications. TiO2–Au composite nanofibers (NFs) with an average fiber diameter of ∼160 nm have been fabricated by electrospinning combined with calcination treatment. In situ reduced gold nanoparticles (NPs) with uniform size (∼10 nm) are found to disperse homogenously in the TiO2 NF matrix. The TiO2–Au composite NFs catalyst can significantly enhance the photocatalytic H2 generation with an extremely high rate of 12 440 μmol g−1 h−1, corresponding to an adequate apparent quantum yield of 5.11% at 400 nm, which is 25 times and 10 times those of P25 (584 μmol g−1 h−1) and pure TiO2 NFs (1254 μmol g−1 h−1), respectively. Furthermore, detailed studies indicate that the H2 evolution efficiency of the TiO2–Au composite NF catalyst is highly dependent on the gold content. This work provides a strategy to develop highly efficient catalysts for H2 evolution. The H2 production rate of TiO2–Au nanofibers is dramatically improved to 12 440 μmol g−1 h−1, 10 times that of pure TiO2.![]()
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Affiliation(s)
- Xiaojiao Yang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Xuelian Wu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of MOE
- Institute of Microscale Optoelectronics
- Shenzhen University
- Shenzhen 518060
- China
| | - Jun Li
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Ying Liu
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
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Wang H, Jin Z, Hao X. CoSe2/CdS-diethylenetriamine coupled with P clusters for efficient photocatalytic hydrogen evolution. Dalton Trans 2019; 48:4015-4025. [DOI: 10.1039/c9dt00586b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel binary solution (DETA/H2O) reaction for preparing composite catalyst composed of CdS nanoparticles grown on CoSe2 nanobelts, which exhibits excellent catalytic activity for a hydrogen evolution reaction.
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Affiliation(s)
- Haiyu Wang
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P.R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P.R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
| | - Xuqiang Hao
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- P.R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology
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