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Shimamura T, Yoshimura N, Otsuka H, Yoshida M, Kobayashi A. Efficient water reduction by ruthenium-picolinate dye-sensitized photocatalyst under red light illumination. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Han F, Ma S, Li D, Alam MM, Yang Z. A Simple Fabrication of Sb 2S 3/TiO 2 Photo-Anode with Long Wavelength Visible Light Absorption for Efficient Photoelectrochemical Water Oxidation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3444. [PMID: 36234571 PMCID: PMC9565654 DOI: 10.3390/nano12193444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
An Sb2S3-sensitized TiO2 (Sb2S3/TiO2) photo-anode (PA) exhibiting a high photo-electrochemical (PEC) performance in water oxidation has been successfully prepared by a simple chemical bath deposition (CBD) technique. Herein, the Raman spectra and XPS spectrum of Sb2S3/TiO2 confirmed the formation of Sb2S3 on the TiO2 coatings. The Sb2S3/TiO2 photo-anode significantly shifted the absorption edge from 395 nm (3.10 eV) to 650 nm (1.90 eV). Furthermore, the Sb2S3/TiO2 photo-anode generated a photo-anodic current under visible light irradiation below 650 nm due to the photo-electrochemical action compared with the TiO2 photo-anode at 390 nm. The incident photon-to-current conversion efficiency (IPCE = 7.7%) at 400 nm and -0.3 V vs. Ag/AgCl was 37 times higher than that (0.21%) of the TiO2 photo-anodes due to the low recombination rate and acceleration of the carriers of Sb2S3/TiO2. Moreover, the photo-anodic current and photostability of the Sb2S3/TiO2 photo-anodes improved via adding the Co2+ ions to the electrolyte solution during photo-electrocatalysis.
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Affiliation(s)
- Fei Han
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
- School of Material Science and Engineering, North Minzu University, Yinchuan 750021, China
- Key Laboratory of Polymer Materials and Manufacturing Technology, North Minzu University, Yinchuan 750021, China
| | - Sai Ma
- School of Material Science and Engineering, North Minzu University, Yinchuan 750021, China
| | - Dong Li
- School of Material Science and Engineering, North Minzu University, Yinchuan 750021, China
| | - Md Mofasserul Alam
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zeheng Yang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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Yoshimura N, Yoshida M, Kato M, Kobayashi A. Photocatalyst-Mediator Interface Modification by Surface-Metal Cations of a Dye-Sensitized H 2 Evolution Photocatalyst. Inorg Chem 2022; 61:11095-11102. [PMID: 35833492 DOI: 10.1021/acs.inorgchem.2c00851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To develop highly active H2 evolving dye-sensitized photocatalysts (DSPs) applicable for Z-scheme water splitting, we synthesized a series of Ru(II)-dye-double-layered DSPs, X'-RuCP6-Zr-RuP6@Pt-TiO2 (X'-DSP) with different surface-bound metal cations (X' = Fe2+, Y3+, Zr4+, Hf4+, and Bi3+). In 0.5 M KI aqueous solution, the photocatalytic H2 evolution activity under blue light irradiation (λ = 460 ± 15 nm) increased in the following order: nonmetal-modified DSP, H+-DSP (turn over number for 6 h irradiation = 35.2) < Fe2+-DSP (54.9) ≈ Bi3+-DSP (55.2) < Hf4+-DSP (65.5) ≈ Zr4+-DSP (68.3) ≈ Y3+-DSP (71.5), suggesting that the redox-inactive and highly charged metal cations tend to improve the electron donation from the iodide electron mediator. On the other hand, DSPs having heavy metal cations, Hf4+-DSP (18.4) and Bi3+-DSP (16.6), exhibited better activity under green light irradiation (λ = 530 ± 15 nm) than Zr4+-DSP (15.7) and H+-DSP (7.80), implying the contribution of a heavy atom effect of the surface-bound metal cation to partially allow the spin-forbidden metal-to-ligand charge-transfer excitation.
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Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan.,Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
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Eskandari P, Zand Z, Kazemi F, Ramdar M. Enhanced catalytic activity of one-dimensional CdS @TiO2 core-shell nanocomposites for selective organic transformations under visible LED irradiation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sun J, Yang Z, Li L, Zhang Y, Zou G. Highly stable halide perovskite with Na incorporation for efficient photocatalytic degradation of organic dyes in water solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:50813-50824. [PMID: 33969454 DOI: 10.1007/s11356-021-14188-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
To overcome water instability and low photocatalytic activity of lead-free halide perovskite for the degradation of organic dyes, we report a novel photocatalyst of lead-free halide perovskite with Na incorporation and employ it for the photocatalytic degradation of organic dyes in water solution under visible light irradiation. The main purpose of this work is to confirm the feasibility of lead-free halide perovskite with Na incorporation for improving the photocatalytic efficiency and recyclability in water solution and further to explore the mechanism behind the enhancement of photocatalytic performance after Na incorporation. The results show that Cs2Ag0.60Na0.40InCl6 can increase the dye degradation rate by at least 50% than the lead-free halide perovskite (Cs2AgInCl6) and the photocatalyst of Ag substituted by Na (Cs2NaInCl6). The degradation efficiency of rhodamine 6G catalyzed by Cs2Ag0.60Na0.40InCl6 reaches 94.94% over 60 min, which is 72% higher than that catalyzed by Cs2NaInCl6 and 27% higher than that catalyzed by Cs2AgInCl6. What's more, the degradation efficiency of methyl orange catalyzed by Cs2Ag0.60Na0.40InCl6 is 90.39% within 150 min, which is 66% higher than that catalyzed by Cs2NaInCl6 and 54% higher than that catalyzed by Cs2AgInCl6. Moreover, the photocatalyst of Cs2Ag0.60Na0.40InCl6 exhibits a desirable recyclability by water exposure, retaining the degradation efficiency over 90% after five cycles. The strengthened photocatalytic performance in the presence of Cs2Ag0.60Na0.40InCl6 is ascribed to an increase of radiative recombination rate and an improvement of average lifetime to 204 ns since an appropriate Na incorporation at the atomic ratio of Na/Ag=4:6 breaks the original crystal lattice and meanwhile increases the electron and hole overlap. The work proves a great potential of halide perovskite with Na incorporation for the highly efficient photocatalytic degradation of organic dyes in water solution.
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Affiliation(s)
- Jifu Sun
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Zhijuan Yang
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Longzhi Li
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China.
| | - Yue Zhang
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China
| | - Guifu Zou
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong Province, China.
- College of Energy, Soochow University, Suzhou, 215006, Jiangsu Province, China.
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Two Excited State Collaboration of Heteroleptic Ir(III)-Coumarin Complexes for H2 Evolution Dye-Sensitized Photocatalysts. ENERGIES 2021. [DOI: 10.3390/en14092425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Interfacial electron injection from a photoexcited surface-immobilized dye to a semiconductor substrate is a key reaction for dye-sensitized photocatalysts. We previously reported that the molecular orientation of heteroleptic Ir(III) photosensitizer on the TiO2 nanoparticle surface was important for efficient interfacial electron injection. In this work, to overcome the weak light absorption ability of heteroleptic Ir(III) photosensitizer and to improve the photoinduced charge-separation efficiency at the dye–semiconductor interface, we synthesized two heteroleptic Ir(III) complexes with different coumarin dyes, [Ir(C6)2(H4CPbpy)]Cl and [Ir(C30)2(H4CPbpy)]Cl [Ir-CX; X = 6 or 30; HC6 = 3-(2-enzothiazolyl)-7-(diethylamino)coumarin, HC30 = 3-(2-N-methylbenzimidazolyl)-7-N,N-diethylaminocoumarin, H4CPbpy = 4,4′-bis(methylphosphonic acid)-2,2′-bipyridine], as the cyclometalated ligands and immobilized them on the surface of Pt-cocatalyst-loaded TiO2 nanoparticles. Ultraviolet-visible absorption and emission spectroscopy revealed that the singlet ligand-centered (1LC) absorption and triplet 3LC emission bands of Ir-C30 occurred at shorter wavelengths than those of Ir-C6, while time-dependent density-functional-theory data suggested that the ligand-to-ligand charge transfer (LLCT) excited states of the two complexes were comparable. The photocatalytic H2 evolution activity of the Ir-C6-sensitized Pt-TiO2 nanoparticles (Ir-C6@Pt-TiO2) under visible light irradiation (λ > 420 nm) was higher than that of Ir-C30@Pt-TiO2. In contrast, their activities were comparable under irradiation with monochromatic light (λ = 450 ± 10 nm), which is absorbed comparably by both Ir-CX complexes. These results suggest that the internal conversion from the higher-lying LC state to the LLCT state effectively occurs in both Ir-CX complexes to trigger electron injection to TiO2.
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Sethi YA, Kulkarni AK, Ambalkar AA, Khore SK, Gunjal AR, Gosavi SW, Kale BB. CdS decorated MnWO 4 nanorod nanoheterostructures: a new 0D-1D hybrid system for enhanced photocatalytic hydrogen production under natural sunlight. NANOSCALE ADVANCES 2021; 3:508-516. [PMID: 36131732 PMCID: PMC9418746 DOI: 10.1039/d0na00843e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 12/08/2020] [Indexed: 05/26/2023]
Abstract
Constructing a heterostructure is an effective strategy to reduce the electron-hole recombination rate, which enhances photocatalytic activity. Here, we report a facile hydrothermal method to grow CdS nanoparticles on MnWO4 nanorods and their photocatalytic hydrogen generation under solar light. A structural study shows the decoration of hexagonal CdS nanoparticles on monoclinic MnWO4. Morphological studies based on FE-TEM analysis confirm the sensitization of CdS nanoparticles (10 nm) on MnWO4 nanorods of diameter-35 nm with mean length ∼100 nm. The lower PL intensity of MnWO4 was observed with an increasing amount of CdS nanoparticles, which shows inhibition of the charge carrier recombination rate. A CdS@MnWO4 narrow band gap semiconductor was employed for photocatalytic hydrogen generation from water under solar light and the highest amount of hydrogen, i.e. 3218 μmol h-1 g-1, is obtained which is 21 times higher than that with pristine MnWO4. The enhanced photocatalytic activity is ascribed to the formation of a CdS@MnWO4 nanoheterostructure resulting in efficient spatial separation of photogenerated electron-hole pairs due to vacancy defects. More significantly, direct Z-scheme electron transfer from MnWO4 to CdS is responsible for the enhanced hydrogen evolution. This work signifies that a CdS decorated MnWO4 nanoheterostructure has the potential to improve the solar to direct fuel conversion efficiency.
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Affiliation(s)
- Yogesh A Sethi
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Aniruddha K Kulkarni
- Prof. John Barnabas School for Biological Studies, Department of Chemistry, Ahmednagar College Ahmednagar India 414001
| | - Anuradha A Ambalkar
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Supriya K Khore
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Aarti R Gunjal
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
| | - Suresh W Gosavi
- Department of Physics, Savitribai Phule Pune University Pune India 411008
| | - Bharat B Kale
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Department of Information Technology, Govt. of India Panchawati, Off Pashan Road Pune 411007 India +91 20 2589 8180 +91 20 2589 9273
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Zhurenok AV, Markovskaya DV, Gerasimov EY, Cherepanova SV, Bukhtiyarov AV, Kozlova EA. Composite photocatalysts based on Cd 1−xZn xS and TiO 2 for hydrogen production under visible light: effect of platinum co-catalyst location. RSC Adv 2021; 11:37966-37980. [PMID: 35498100 PMCID: PMC9044054 DOI: 10.1039/d1ra06845h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 11/16/2021] [Indexed: 11/21/2022] Open
Abstract
Ternary composite photocatalysts based on titania and solid solutions of CdS and ZnS were prepared and studied by a set of physicochemical methods including XRD, XPS, HRTEM, UV-vis spectroscopy, and electrochemical tests. Two synthetic techniques of platinization of Cd1−xZnxS/TiO2 were compared. In the first case, platinum was deposited on the surface of synthesized Cd1−xZnxS (x = 0.2–0.3)/TiO2 P25; in the second one, Cd1−xZnxS (x = 0.2–0.3) was deposited on the surface of Pt/TiO2 P25. The photocatalytic properties of the obtained samples were compared in the hydrogen evolution from TEOA aqueous solution under visible light (λ = 425 nm). The Cd1−xZnxS (10–50 wt%; x = 0.2–0.3)/Pt (1 wt%)/TiO2 photocatalysts demonstrated much higher photocatalytic activity than the Pt (1 wt%)/Cd1−xZnxS (10–50 wt%; x = 0.2–0.3)/TiO2 ones. It turned out that the arrangement of platinum nanoparticles precisely on the titanium dioxide surface in a composite photocatalyst makes it possible to achieve efficient charge separation according to the type II heterojunctions and, accordingly, a high rate of hydrogen formation. The highest photocatalytic activity was demonstrated by 20% Cd0.8Zn0.2S/1% Pt/TiO2 in the amount of 26 mmol g−1 h−1 (apparent quantum efficiency was 7.7%) that exceeds recently published values for this class of photocatalysts. The determination of the preferred location of platinum particles in TiO2–Cd1−xZnxS systems was carried out for the first time.![]()
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Affiliation(s)
- Angelina V. Zhurenok
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
| | - Dina V. Markovskaya
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
| | - Evgeny Yu. Gerasimov
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
| | - Svetlana V. Cherepanova
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
| | - Andrey V. Bukhtiyarov
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
| | - Ekaterina A. Kozlova
- Federal Research Center Boreskov Institute of Catalysis, 630090, Pr. Ak. Lavrentieva, 5, Novosibirsk, Russia
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Yoshimura N, Kobayashi A, Yoshida M, Kato M. Enhancement of Photocatalytic Activity for Hydrogen Production by Surface Modification of Pt‐TiO
2
Nanoparticles with a Double Layer of Photosensitizers. Chemistry 2020; 26:16939-16946. [PMID: 33067824 DOI: 10.1002/chem.202003990] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry Faculty of Science Hokkaido University North-10 West-8 Kita-ku Sapporo 0600810 Japan
| | - Atsushi Kobayashi
- Department of Chemistry Faculty of Science Hokkaido University North-10 West-8 Kita-ku Sapporo 0600810 Japan
| | - Masaki Yoshida
- Department of Chemistry Faculty of Science Hokkaido University North-10 West-8 Kita-ku Sapporo 0600810 Japan
| | - Masako Kato
- Department of Chemistry Faculty of Science Hokkaido University North-10 West-8 Kita-ku Sapporo 0600810 Japan
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10
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Recent Advancements and Future Prospects in Ultrathin 2D Semiconductor-Based Photocatalysts for Water Splitting. Catalysts 2020. [DOI: 10.3390/catal10101111] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ultrathin two-dimensional (2D) semiconductor-mediated photocatalysts have shown their compelling potential and have arguably received tremendous attention in photocatalysis because of their superior thickness-dependent physical, chemical, mechanical and optical properties. Although numerous comprehensions about 2D semiconductor photocatalysts have been amassed up to now, low cost efficiency, degradation, kinetics of charge transfer along with recycling are still the big challenges to realize a wide application of 2D semiconductor-based photocatalysis. At present, most photocatalysts still need rare or expensive noble metals to improve the photocatalytic activity, which inhibits their commercial-scale application extremely. Thus, developing less costly, earth-abundant semiconductor-based photocatalysts with efficient conversion of sunlight energy remains the primary challenge. In this review, it begins with a brief description of the general mechanism of overall photocatalytic water splitting. Then a concise overview of different types of 2D semiconductor-mediated photocatalysts is given to figure out the advantages and disadvantages for mentioned semiconductor-based photocatalysis, including the structural property and stability, synthesize method, electrochemical property and optical properties for H2/O2 production half reaction along with overall water splitting. Finally, we conclude this review with a perspective, marked on some remaining challenges and new directions of 2D semiconductor-mediated photocatalysts.
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Gokakakar SD, Pavaskar PA, Salker AV. Photo-catalytic studies of Mn and Fe tetraphenyl porphyrins in the degradation of Amido Black 10B dye with solar light. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-1989-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Metal Chalcogenides Based Heterojunctions and Novel Nanostructures for Photocatalytic Hydrogen Evolution. Catalysts 2020. [DOI: 10.3390/catal10010089] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The photo-conversion efficiency is a key issue in the development of new photocatalysts for solar light driven water splitting applications. In recent years, different engineering strategies have been proposed to improve the photogeneration and the lifetime of charge carriers in nanostructured photocatalysts. In particular, the rational design of heterojunctions composites to obtain peculiar physico-chemical properties has achieved more efficient charge carriers formation and separation in comparison to their individual component materials. In this review, the recent progress of sulfide-based heterojunctions and novel nanostructures such as core-shell structure, periodical structure, and hollow cylinders is summarized. Some new perspectives of opportunities and challenges in fabricating high-performance photocatalysts are also discussed.
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Zhang Y, Yuan C, Wang Q, Hoffmann MR, Zhang X, Nie J, Hu C, Chen S, Qiao J, Wang Q, Cong Y. Photoelectrochemical activity of CdS/Ag/TiO2 nanorod composites: Degradation of nitrobenzene coupled with the concomitant production of molecular hydrogen. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.135124] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yoshimura N, Kobayashi A, Yoshida M, Kato M. A Systematic Study on the Double-Layered Photosensitizing Dye Structure on the Surface of Pt-Cocatalyst-Loaded TiO2 Nanoparticles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaki Yoshida
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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Liu W, Yuan K, Liu P, Chen M. Construction of detachable core/shell Fe3O4@C supported noble metal catalysts and their catalytic performance. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Moniruddin M, Oppong E, Stewart D, McCleese C, Roy A, Warzywoda J, Nuraje N. Designing CdS-Based Ternary Heterostructures Consisting of Co-Metal and CoOx Cocatalysts for Photocatalytic H2 Evolution under Visible Light. Inorg Chem 2019; 58:12325-12333. [PMID: 31483615 DOI: 10.1021/acs.inorgchem.9b01854] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Md Moniruddin
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Ellis Oppong
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - David Stewart
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson AFB, Ohio 45433-7750, United States
- General Dynamics Information Technology, 5000 Springfield Pike, Dayton, Ohio 45431, United States
| | - Christopher McCleese
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson AFB, Ohio 45433-7750, United States
| | - Ajit Roy
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson AFB, Ohio 45433-7750, United States
| | - Juliusz Warzywoda
- Materials Characterization Center, Whitacre College of Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Nurxat Nuraje
- Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
- Department of Chemical & Materials Engineering, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
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Jo YK, Lee JM, Son S, Hwang SJ. 2D inorganic nanosheet-based hybrid photocatalysts: Design, applications, and perspectives. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2018.03.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Scandura G, Rodríguez J, Palmisano G. Hydrogen and Propane Production From Butyric Acid Photoreforming Over Pt-TiO 2. Front Chem 2019; 7:563. [PMID: 31440501 PMCID: PMC6692698 DOI: 10.3389/fchem.2019.00563] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/23/2019] [Indexed: 11/13/2022] Open
Abstract
Photocatalysis is a promising technology from economic, energetic, and ecological points of view because it takes advantage of solar light. Hence, it is one of the investigated green routes to produce hydrogen from renewable energy resources. Butyric acid (BA) is largely present in wastewater and as an intermediate product in anaerobic digestion and therefore it is an inexpensive resource, which can be converted to valuable chemicals. In this work, photoreforming of butyric acid (BAPR) under UV light in aqueous suspensions of platinum-modified titanium dioxide-based catalysts is reported for the first time. Titania nanotubes (TNT) synthesized and calcined at different temperatures (300, 400, 500°C) and commercial TiO2 (P25), decorated with platinum nanoparticles, have been tested and characterized through different techniques including X-ray powder diffraction, UV-vis diffuse reflectance and photoluminescence spectroscopy, transmission electron microscopy, BET and porosimetry analysis. The main identified products of the BAPR were H2, propane, CO2 and several organic acids (e.g., pentanoic and 3-methylhexanoic acid). It has been found that the morphology and crystallinity of the photocatalysts affected dramatically their optical properties and, consequently, the reaction rate and the product distribution. Specifically, the highest conversion of BA (XBA) and selectivity toward H2 (SH2) was recorded with P25-Pt (XBA = 26.9%, SH2 = 47.2% after 8 h of irradiation). TNT-400-Pt showed the highest selectivity toward propane (SC3H8 = 16.1%) with XBA = 23.4% and SH2 = 36.2%. The activity results in conjunction with the characterization of the catalysts highlighted that the main factor affecting the activity in terms of XBA and generation of H2 was the crystallinity, and in particular the presence of rutile phase in TiO2, whereas SC3H8 appears to increase when the electron-holes recombination is lower.
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Affiliation(s)
- Gabriele Scandura
- Department of Chemical Engineering, Masdar Institute Campus, Khalifa University, Abu Dhabi, United Arab Emirates.,Research and Innovation Center on CO2 and H2 (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
| | - Jorge Rodríguez
- Department of Chemical Engineering, Masdar Institute Campus, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Giovanni Palmisano
- Department of Chemical Engineering, Masdar Institute Campus, Khalifa University, Abu Dhabi, United Arab Emirates.,Research and Innovation Center on CO2 and H2 (RICH), Khalifa University, Abu Dhabi, United Arab Emirates
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19
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Noble-metal-free CuS/CdS photocatalyst for efficient visible-light-driven photocatalytic H2 production from water. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.03.060] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Zn1−xFexOy nanocomposites for renewable hydrogen produced efficiently via photoelectrochemical vis-a-vis photocatalytic splitting of water. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0597-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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21
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Recent Progress on Metal Sulfide Composite Nanomaterials for Photocatalytic Hydrogen Production. Catalysts 2019. [DOI: 10.3390/catal9050457] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Metal sulfide-based photocatalysts have gained much attention due to their outstanding photocatalytic properties. This review paper discusses recent developments on metal sulfide-based nanomaterials for H2 production, acting as either photocatalysts or cocatalysts, especially in the last decade. Recent progress on key experimental parameters, in-situ characterization methods, and the performance of the metal sulfide photocatalysts are systematically discussed, including the forms of heterogeneous composite photocatalysts, immobilized photocatalysts, and magnetically separable photocatalysts. Some methods have been studied to solve the problem of rapid recombination of photoinduced carriers. The electronic density of photocatalysts can be investigated by in-situ C K-edge near edge X-ray absorption fine structure (NEXAFS) spectra to study the mechanism of the photocatalytic process. The effects of crystal properties, nanostructure, cocatalyst, sacrificial agent, electrically conductive materials, doping, calcination, crystal size, and pH on the performance of composite photocatalysts are presented. Moreover, the facet effect and light trapping (or light harvesting) effect, which can improve the photocatalytic activity, are also discussed.
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22
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Borgwardt M, Omelchenko ST, Favaro M, Plate P, Höhn C, Abou-Ras D, Schwarzburg K, van de Krol R, Atwater HA, Lewis NS, Eichberger R, Friedrich D. Femtosecond time-resolved two-photon photoemission studies of ultrafast carrier relaxation in Cu 2O photoelectrodes. Nat Commun 2019; 10:2106. [PMID: 31068589 PMCID: PMC6506537 DOI: 10.1038/s41467-019-10143-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 04/23/2019] [Indexed: 11/10/2022] Open
Abstract
Cuprous oxide (Cu2O) is a promising material for solar-driven water splitting to produce hydrogen. However, the relatively small accessible photovoltage limits the development of efficient Cu2O based photocathodes. Here, femtosecond time-resolved two-photon photoemission spectroscopy has been used to probe the electronic structure and dynamics of photoexcited charge carriers at the Cu2O surface as well as the interface between Cu2O and a platinum (Pt) adlayer. By referencing ultrafast energy-resolved surface sensitive spectroscopy to bulk data we identify the full bulk to surface transport dynamics for excited electrons rapidly localized within an intrinsic deep continuous defect band ranging from the whole crystal volume to the surface. No evidence of bulk electrons reaching the surface at the conduction band level is found resulting into a substantial loss of their energy through ultrafast trapping. Our results uncover main factors limiting the energy conversion processes in Cu2O and provide guidance for future material development. While cuprous oxide is a promising solar-to-fuel conversion material, photoelectrochemical devices substantially underperform. Here, the authors use femtosecond time-resolved two-photon photoemission spectroscopy to correlate photoexcited electron energetics and dynamics with performance losses.
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Affiliation(s)
- Mario Borgwardt
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Stefan T Omelchenko
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA.,The Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Marco Favaro
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Paul Plate
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Christian Höhn
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Daniel Abou-Ras
- Department Nanoscale Structures and Microscopic Analysis, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Klaus Schwarzburg
- Department Nanoscale Structures and Microscopic Analysis, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Roel van de Krol
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Harry A Atwater
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, 91125, USA.,The Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, CA, 91125, USA.,Kavli Nanoscience Institute, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Nathan S Lewis
- The Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, CA, 91125, USA.,Kavli Nanoscience Institute, California Institute of Technology, Pasadena, CA, 91125, USA.,Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Rainer Eichberger
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany.
| | - Dennis Friedrich
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany.
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23
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A high H2 evolution rate under visible light of a CdS/TiO2@NiS catalyst due to a directional electron transfer between the phases. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.04.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Wang Y, Chen J, Liu L, Xi X, Li Y, Geng Z, Jiang G, Zhao Z. Novel metal doped carbon quantum dots/CdS composites for efficient photocatalytic hydrogen evolution. NANOSCALE 2019; 11:1618-1625. [PMID: 30306173 DOI: 10.1039/c8nr05807e] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Carbon quantum dots (CDs) are rising stars for photocatalytic applications due to their low toxicity and excellent electron transfer characteristics. Doping with heteroatoms is expected to adjust the band levels and electron transfer properties of CDs, and understanding the effect of doping on CDs can aid the rational preparation of highly efficient CD-based photocatalysts. Herein, we prepared a series of metal atom (Zn, Co, Bi, Cd, or Ti) doped CDs by pyrolysis and explored the photocatalytic application of these metal doped CDs for the first time. The metal doped CDs were combined with CdS nanowires as a co-catalyst for photocatalytic hydrogen production. The Bi, Cd and Ti doped CDs/CdS composites show much better hydrogen production performance than the undoped CDs/CdS composite. Among these composites, Bi-CDs/CdS presents the optimal interfacial charge separation and the best hydrogen production performance. The hydrogen evolution rate of Bi-CDs/CdS is 4.2 times and almost one time higher than that of pure CdS and undoped CDs/CdS, respectively. Bi doping can make the CDs metallic and promote the charge transfer of CDs. Such a great enhancement originates from the outstanding electron transfer properties of Bi-doped CDs, as well as the effective charge separation between Bi-doped CDs and CdS. Bi doping was demonstrated to be an effective strategy for optimizing the photocatalytic activity of CD based composites.
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Affiliation(s)
- Yajun Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Beijing 102249, People's Republic of China.
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25
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Zhu S, Wang J, He Y, Yu Z, Wang X, Su W. In situ photodeposition of amorphous NixP on CdS nanorods for efficient visible-light photocatalytic H2 generation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01244c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Noble metal-free amorphous NixP modified CdS with superior photocatalytic H2 evolution activity has been successfully fabricated.
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Affiliation(s)
- Simeng Zhu
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Jing Wang
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Yishan He
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Zhiyang Yu
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Wenyue Su
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- P. R. China
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26
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Zhen D, Gao C, Yang D, Zhu X, Grimes CA, Liu Y, Cai Q. Blue Ti3+ self-doped TiO2 nanosheets with rich {001} facets for photocatalytic performance. NEW J CHEM 2019. [DOI: 10.1039/c8nj06371k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The as-prepared BT1.5TNs exhibits superior photocatalytic performance for RhB degradation due to Ti3+ doping.
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Affiliation(s)
- Deshuai Zhen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Chan Gao
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - De Yang
- Da Tian Zhuang Township Health Center
- Feixian 273400
- China
| | - Xingqi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | | | - Yu Liu
- College of Chemistry and Chemical Engineering
- Qiannan Normal University for Nationalities
- Duyun
- P. R. China
| | - Qingyun Cai
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
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27
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Guo R, Xu X, Xia Y, Huang W, Li Z, Teng B. Insights into electrocatalytic hydrogen evolution reaction in acidic medium at in-situ dispersed Pt atoms on nanoporous gold films. J Catal 2018. [DOI: 10.1016/j.jcat.2018.10.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Nagakawa H, Ochiai T, Takekuma Y, Konuma S, Nagata M. Effective Photocatalytic Hydrogen Evolution by Cascadal Carrier Transfer in the Reverse Direction. ACS OMEGA 2018; 3:12770-12777. [PMID: 31458002 PMCID: PMC6645024 DOI: 10.1021/acsomega.8b02449] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 09/27/2018] [Indexed: 06/10/2023]
Abstract
Visible-light-responsive photocatalysts used in the highly efficient hydrogen production exhibit several disadvantages such as photocorrosion and fast recombination. Because of the potential important applications of such catalysts, it is crucial that a simple, effective solution is developed. In this respect, in this study, we combined SiC (β modification) and TiO2 with CdS to overcome the challenges of photocorrosion and fast recombination of CdS. Notably, we found that when irradiated with visible light, CdS was excited, and the excited electrons moved to the conduction band of TiO2, thereby increasing the efficiency of charge separation. In addition, by moving the holes generated on CdS to the valence band of SiC, in the opposite direction of TiO2, photocorrosion and fast recombination were prevented. As a result, in the sulfide solution, the CdS/SiC composite catalyst exhibited 4.3 times higher hydrogen generation ability than pure CdS. Moreover, this effect was enhanced with the addition of TiO2, giving 10.8 times higher hydrogen generation ability for the CdS/SiC/TiO2 catalyst. Notably, the most efficient catalyst, which was obtained by depositing Pt as a cocatalyst, exhibited 1.09 mmol g-1 h-1 hydrogen generation ability and an apparent quantum yield of 24.8%. Because water reduction proceeded on the TiO2 surface and oxidative sulfide decomposition proceeded on the SiC surface, the exposure of CdS to the solution was unnecessary, and X-ray photoelectron spectroscopy confirmed that photocorrosion was successfully suppressed. Thus, we believe that the effective composite photocatalyst construction method presented herein can also be applied to other visible-light-responsive powder photocatalysts having the same disadvantages as CdS, thereby improving the efficiency of such catalysts.
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Affiliation(s)
- Haruki Nagakawa
- Department
of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science, 12-1 Ichigayafunagawara-cho, Shinjuku-ku, Tokyo 162-0826, Japan
- Photocatalyst
Group, Research and Development Department, Local Independent Administrative Agency Kanagawa Institute of Industrial
Science and TEChnology (KISTEC), Kanagawa 213-0012, Japan
| | - Tsuyoshi Ochiai
- Photocatalyst
Group, Research and Development Department, Local Independent Administrative Agency Kanagawa Institute of Industrial
Science and TEChnology (KISTEC), Kanagawa 213-0012, Japan
- Materials Analysis Group, Kawasaki Technical Support
Department, and Nanostructure
Analysis Group, Kawasaki Technical Support Department, KISTEC, Kanagawa 213-0012, Japan
- Photocatalysis
International Research Center, Tokyo University
of Science, Tokyo 162-0826, Japan
| | - Yuya Takekuma
- Department
of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science, 12-1 Ichigayafunagawara-cho, Shinjuku-ku, Tokyo 162-0826, Japan
- Photocatalyst
Group, Research and Development Department, Local Independent Administrative Agency Kanagawa Institute of Industrial
Science and TEChnology (KISTEC), Kanagawa 213-0012, Japan
| | - Seiji Konuma
- Materials Analysis Group, Kawasaki Technical Support
Department, and Nanostructure
Analysis Group, Kawasaki Technical Support Department, KISTEC, Kanagawa 213-0012, Japan
| | - Morio Nagata
- Department
of Industrial Chemistry, Graduate School of Engineering, Tokyo University of Science, 12-1 Ichigayafunagawara-cho, Shinjuku-ku, Tokyo 162-0826, Japan
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29
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Jin YJ, Jo WK. Upgraded organic vapor treatment and hydrogen generation using low-cost metal/1D black titania nanocomposites under simulated solar irradiation. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.05.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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30
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Trincado M, Vogt M. CO2-based hydrogen storage – hydrogen liberation from methanol/water mixtures and from anhydrous methanol. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
New strategies for the reforming of methanol under mild conditions on the basis of heterogeneous and molecular catalysts have raised the hopes and expectations on this fuel. This contribution will focus on the progress achieved in the production of hydrogen from aqueous and anhydrous methanol with molecular and heterogeneous catalysts. The report entails thermal approaches, as well as light-triggered dehydrogenation reactions. A comparison of the efficiency and mechanistic aspects will be made and principles of catalytic pathways operating in biological systems will be also addressed.
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31
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Nasr M, Eid C, Habchi R, Miele P, Bechelany M. Recent Progress on Titanium Dioxide Nanomaterials for Photocatalytic Applications. CHEMSUSCHEM 2018; 11:3023-3047. [PMID: 29984904 DOI: 10.1002/cssc.201800874] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Environmental and energy problems have drawn much attention owing to rapid population growth and accelerated economic development. For instance, photocatalysis, "a green technology", plays an important role in solar-energy conversion owing to its potential to solve energy and environmental problems. Recently, many efforts have been devoted to improving visible-light photocatalytic activity by using titanium dioxide as a photocatalyst as a result of its wide range of applications in the energy and environment fields. However, fast charge recombination and an absorption edge in the UV range limit the photocatalytic efficiency of TiO2 under visible-light irradiation. Many investigations have been undertaken to overcome the limitations of TiO2 and, therefore, to enhance its photocatalytic activity under visible light. The present literature review focuses on different strategies used to promote the separation efficiency of electron-hole pairs and to shift the absorption edge of TiO2 to the visible region. Current synthesis techniques used to elaborate several nanostructures of TiO2 -based materials, recent progress in enhancing visible photocatalytic activity, and different photocatalysis applications will be discussed. On the basis of the studies reported in the literature, we believe that this review will help in the development of new strategies to improve the visible-light photocatalytic performance of TiO2 -based materials further.
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Affiliation(s)
- Maryline Nasr
- Institut Européen des Membranes IEM, UMR-5635, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, F-, 34095, Montpellier Cedex 5, France
- EC2M, Faculty of Sciences 2, campus Pierre Gemayel, Fanar, Lebanese University, 90656, Lebanon
| | - Cynthia Eid
- EC2M, Faculty of Sciences 2, campus Pierre Gemayel, Fanar, Lebanese University, 90656, Lebanon
| | - Roland Habchi
- EC2M, Faculty of Sciences 2, campus Pierre Gemayel, Fanar, Lebanese University, 90656, Lebanon
| | - Philippe Miele
- Institut Européen des Membranes IEM, UMR-5635, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, F-, 34095, Montpellier Cedex 5, France
- Institut Universitaire de France (IUF), MESRI, 1 rue Descartes, 75231, Paris cedex 05, France
| | - Mikhael Bechelany
- Institut Européen des Membranes IEM, UMR-5635, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, F-, 34095, Montpellier Cedex 5, France
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32
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Guo SQ, Zhu XH, Zhang HJ, Gu BC, Chen W, Liu L, Alvarez PJJ. Improving Photocatalytic Water Treatment through Nanocrystal Engineering: Mesoporous Nanosheet-Assembled 3D BiOCl Hierarchical Nanostructures That Induce Unprecedented Large Vacancies. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:6872-6880. [PMID: 29722537 DOI: 10.1021/acs.est.8b00352] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Vacancy control can significantly enhance the performance of photocatalytic semiconductors for water purification. However, little is known about the mechanisms and approaches that could generate stable large vacancies. Here, we report a new mechanism to induce vacancy formation on nanocrystals for enhanced photocatalytic activity: the introduction of mesopores. We synthesized two nanosheet-assembled hierarchical 3D BiOCl mesoporous nanostructures with similar morphology and exposed facets but different nanosheet thickness. Positron annihilation analysis detected unprecedentedly large VBi‴ VO•• VBi‴ VO•• VBi‴ vacancy associates (as well as VBi‴ VO•• VBi‴) on BiOCl assembled from 3-6 nm nanosheets but only VBi‴ VO•• VBi‴ vacancy associates on BiOCl assembled from thicker (10-20 nm) nanosheets. Comparison of vacancy properties with 2D ultrathin 2.7 nm nanosheets (with VBi‴ VO•• VBi‴ and VBi‴) indicates that nanosheet thinness alone cannot explain the formation of such large atom vacancies. On the basis of density functional theory computations of formation energy of isolated Bi vacancy, we show that mesopores facilitate the formation of large vacancies to counterbalance thermodynamic instability caused by incompletely coordinated Bi and O atoms along the mesopore perimeters. We corroborate that the extraordinarily large VBi‴ VO•• VBi‴ VO•• VBi‴ vacancy associates facilitate photoexcitation of electrons and prevent the recombination of electron-hole pairs, which significantly enhances photocatalytic activity. This is demonstrated by the rapid mineralization of bisphenol A (10-5 M) with low photocatalyst loading (1 g L-1), as well as enhanced bacterial disinfection. Improved electron-hole separation is also corroborated by enhanced photocatalytic reduction of nitrate.
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Affiliation(s)
- Sheng-Qi Guo
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , China
- Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering , Tianjin University of Technology , Tianjin 300384 , China
| | - Xiao-He Zhu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Hai-Jun Zhang
- School of Physics and Materials Science , Anhui University , Hefei , Anhui 230039 , China
| | - Bing-Chuan Gu
- State Key Laboratory of Particle Detection and Electronics , University of Science & Technology of China , Hefei , Anhui 230026 , China
| | - Wei Chen
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Lu Liu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , China
| | - Pedro J J Alvarez
- Department of Civil and Environmental Engineering , Rice University , Houston , Texas 77005 , United States
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33
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Kang U, Park KJ, Han DS, Kim YM, Kim S, Park H. Photoelectrochemical hydrogen production using CdS nanoparticles photodeposited onto Li-ion-inserted titania nanotube arrays. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.08.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Basith MA, Yesmin N, Hossain R. Low temperature synthesis of BiFeO3 nanoparticles with enhanced magnetization and promising photocatalytic performance in dye degradation and hydrogen evolution. RSC Adv 2018; 8:29613-29627. [PMID: 35547287 PMCID: PMC9085277 DOI: 10.1039/c8ra04599b] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/14/2018] [Indexed: 11/21/2022] Open
Abstract
In this investigation, we have synthesized BiFeO3 nanoparticles by varying hydrothermal reaction temperatures from 200 °C to 120 °C to assess their visible-light driven photocatalytic activity along with their applicability for hydrogen production via water splitting. The rhombohedral perovskite structure of BiFeO3 is formed for hydrothermal reaction temperature up to 160 °C. However, for a further decrement of hydrothermal reaction temperature a mixed sillenite phase is observed. The XRD Rietveld analysis, XPS analysis and FESEM imaging ensure the formation of single-phase and well crystalline nanoparticles at 160 °C reaction temperature with 20 nm of average size. The nanoparticles fabricated at this particular reaction temperature also exhibit improved magnetization, reduced leakage current density and excellent ferroelectric behavior. These nanoparticles demonstrate considerably high absorbance in the visible range with a low band gap (2.1 eV). The experimentally observed band gap is in excellent agreement with the calculated band gap using first-principles calculations. The favorable photocatalytic performance of these nanoparticles has been able to generate more than two times of solar hydrogen compared to that produced by bulk BiFeO3 as well as commercially available Degussa P25 titania. Notably, the experimentally observed band gap is almost equal for both bulk material and nanoparticles prepared at different reaction temperatures. Therefore, in solar energy applications, the superiority of BiFeO3 nanoparticles prepared at 160 °C reaction temperature may be attributed not only to their band gap but also to other factors, such as reduced particle size, excellent morphology, good crystallinity, large surface to volume ratio, ferroelectricity and so on. Multiferroic BiFeO3 nanoparticles were synthesized using low temperature hydrothermal technique to assess their visible-light driven photocatalytic activity along with their applicability for the production of hydrogen via water splitting.![]()
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Affiliation(s)
- M. A. Basith
- Department of Physics
- Bangladesh University of Engineering and Technology
- Dhaka-1000
- Bangladesh
| | - Nilufar Yesmin
- Department of Physics
- Bangladesh University of Engineering and Technology
- Dhaka-1000
- Bangladesh
| | - Rana Hossain
- Department of Physics
- Bangladesh University of Engineering and Technology
- Dhaka-1000
- Bangladesh
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35
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Chen H, Zhou Z, Greaves GN, Nigar S, Cao H, Zhao T, Lu X. Pt nanoparticles decorated rose-like Bi2O2CO3 configurations for efficient photocatalytic removal of water organic pollutants. RSC Adv 2018; 8:914-920. [PMID: 35538986 PMCID: PMC9076944 DOI: 10.1039/c7ra12236e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 12/08/2017] [Indexed: 01/29/2023] Open
Abstract
Pt nanoparticles decorated with rose-like Bi2O2CO3 configurations were synthesized via a simple photoreduction method at room temperature.
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Affiliation(s)
- Huijuan Chen
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Zhongfu Zhou
- State Key Laboratory of Advanced Special Steel
- Shanghai University
- Shanghai 200072
- PR China
- Key Laboratory of Material Microstructures
| | - G. Neville Greaves
- Department of Physics
- Aberystwyth University
- Aberystwyth SY23 3BZ
- UK
- State Key Laboratory of Silicate Materials for Architectures
| | - Salma Nigar
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Huaqiang Cao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- PR China
| | - Tingkai Zhao
- State Key Laboratory of Solidification Processing
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an 710072
- PR China
| | - Xionggang Lu
- State Key Laboratory of Advanced Special Steel
- Shanghai University
- Shanghai 200072
- PR China
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36
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Wang F, Wong RJ, Ho JH, Jiang Y, Amal R. Sensitization of Pt/TiO 2 Using Plasmonic Au Nanoparticles for Hydrogen Evolution under Visible-Light Irradiation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30575-30582. [PMID: 28829570 DOI: 10.1021/acsami.7b06265] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Au nanoparticles with different sizes (10, 20, 30, and 50 nm) were synthesized using a seed-assisted approach and anchored onto Pt/TiO2 employing 3-mercaptopropionic acid as the organic linker. The sizes of the Au nanoparticles were controlled within a narrow range so that the size-dependent surface plasmonic resonance effect on sensitizing Pt/TiO2 can be thoroughly studied. We found that 20 nm Au nanoparticles (Au20) gave the best performance in sensitizing Pt/TiO2 to generate H2 under visible-light illumination. Photoelectrochemical measurements indicated that Au20-Pt/TiO2 exhibited the most efficient "hot" electrons separation among the studied catalysts, correlating well with the photocatalytic activity. The superior performance of Au-supported Pt/TiO2 (Au20-Pt/TiO2) compared with Au anchored to TiO2 (Au20/TiO2) revealed the important role of Pt as a cocatalyst for proton reduction. To elucidate how the visible-light excited hot electrons in Au nanoparticles involved in the proton-reduction reaction process, Au20/TiO2 was irradiated by visible light (λ > 420 nm) with the presence of Pt precursor (H2PtCl6) in a methanol aqueous solution under deaerated condition. Energy-dispersive X-ray spectroscopy mapping analysis on the recovered sample showed that Pt ions could be reduced on the surfaces of both Au nanoparticles and TiO2 support. This observation indicated that the generated hot electrons on Au nanoparticles were injected into the TiO2 conduction band, which were then subsequently transferred to Pt nanoparticles where proton reduction proceeded. Besides, the excited hot electrons could also participate in the proton reduction on Au nanoparticles surface.
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Affiliation(s)
- Fenglong Wang
- School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Roong Jien Wong
- School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Jie Hui Ho
- School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
| | - Yijiao Jiang
- Department of Engineering, Macquarie University , Sydney, New South Wales 2109, Australia
| | - Rose Amal
- School of Chemical Engineering, UNSW Australia , Sydney, New South Wales 2052, Australia
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37
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Furugori S, Kobayashi A, Watanabe A, Yoshida M, Kato M. Impact of Photosensitizing Multilayered Structure on Ruthenium(II)-Dye-Sensitized TiO 2-Nanoparticle Photocatalysts. ACS OMEGA 2017; 2:3901-3912. [PMID: 31457696 PMCID: PMC6641294 DOI: 10.1021/acsomega.7b00566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 07/12/2017] [Indexed: 06/10/2023]
Abstract
To improve the efficiency of photoinduced charge separation on the surface of dye-sensitized TiO2 nanoparticles, we synthesized the Ru(II)-photosensitizer-immobilized, Pt-cocatalyst-loaded TiO2 nanoparticles RuCP 2 @Pt-TiO2, RuCP 2 -Zr-RuP 6 @Pt-TiO2, and RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2 (RuCP 2 = [Ru(bpy)2(mpbpy)]2-, RuP 4 = [Ru(bpy)(pbpy)2]6-, RuP 6 = [Ru(pbpy)3]10-, H4mpbpy = 2,2'-bipyridine-4,4'-bis(methanephosphonic acid), and H4pbpy = 2,2'-bipyridine-4,4'-bis(phosphonic acid)) using phosphonate linkers with bridging Zr4+ ions. X-ray fluorescence and ultraviolet-visible absorption spectra revealed that a layered molecular structure composed of Ru(II) photosensitizers and Zr4+ ions (i.e., RuCP 2 -Zr-RuP 6 and RuCP 2 -Zr-RuP 4 -Zr-RuP 6 ) was successfully formed on the surface of Pt-TiO2 nanoparticles, which increased the surface coverage from 0.113 nmol/cm2 for singly layered RuCP 2 @Pt-TiO2 to 0.330 nmol/cm2 for triply layered RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2. The photocatalytic H2 evolution activity of the doubly layered RuCP 2 -Zr-RuP 6 @Pt-TiO2 was three times higher than that of the singly layered RuCP 2 @Pt-TiO2, whereas the activity of triply layered RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2 was less than half of that for RuCP 2 @Pt-TiO2. The photosensitizing efficiencies of these Ru(II)-photosensitizer-immobilized nanoparticles for the O2 evolution reaction catalyzed by the Co(II)-containing Prussian blue analogue [CoII(H2O)2]1.31[{CoIII(CN)6}0.63{PtII(CN)4}0.37] decreased as the number of Ru(II)-photosensitizing layers increased. Thus, crucial aspects of the energy- and electron-transfer mechanism for the photocatalytic H2 and O2 evolution reactions involve not only the Ru(II)-complex-TiO2 interface but also the multilayered structure of the Ru(II)-photosensitizers on the Pt-TiO2 surface.
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Affiliation(s)
- Sogo Furugori
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Atsushi Kobayashi
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
- Precursory
Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Ayako Watanabe
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masako Kato
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
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38
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Hodges JM, Schaak RE. Controlling Configurational Isomerism in Three-Component Colloidal Hybrid Nanoparticles. Acc Chem Res 2017; 50:1433-1440. [PMID: 28520407 DOI: 10.1021/acs.accounts.7b00105] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Colloidal hybrid nanoparticles are solution-dispersible constructs that join together multiple distinct nanoscale materials through direct solid-solid interfaces. Given their multifunctionality and synergistic properties that emerge from interfacial coupling, hybrid nanoparticles are of interest for applications in biomedical imaging, solar energy conversion, heterogeneous catalysis, nanophotonics, and beyond. High-order hybrid nanoparticles, which incorporate three or more nanocrystal domains, offer greater tunability and functional diversity relative to one or two-component nanoparticles. The multiple heterojunctions within these structures can facilitate complex electromagnetic coupling as well as cooperative surface processes. Additionally, these materials can be used as model systems for studying fundamental structure-property relationships at the nanoscale that arise from particle coupling and interfacial exchanges. Limiting these advances is the inability to synthesize hybrid nanoparticles with precise morphologies and geometries. High-order hybrid nanoparticles can adopt more than one configuration, and each unique arrangement will have different heterointerfaces and, accordingly, different functions. Seeded-growth methods are among the most effective methods for producing high-quality hybrid nanoparticles. Engineering complex heterostructures using these stepwise reactions is in some ways conceptually analogous to the total synthesis of large organic molecules. However, unlike in molecular synthesis, the rules and guidelines that underpin the formation of hybrid nanoparticles are less understood. For example, when a third domain is added to a two-component heterodimer nanoparticle seed, several distinct types of hybrid nanoparticle products are possible, but only one is typically observed due to preferred growth at specific locations. The three-component heterotrimer products that preferentially form are not necessarily those that have the domain configurations and heterojunctions required to facilitate a targeted application. Different arrangements of the three nanoparticles that comprise a heterotrimer lead to distinct configurational isomers. Accordingly, understanding and controlling configurational isomerism in nanoparticle heterotrimers is foundational for engineering high-order hybrid nanostructures with targeted heterointerfaces, properties, and functionalities. This Account highlights recent insights into the pathways by which three-component nanoparticle heterotrimers form and how their configurations can be controlled and modified. In-depth microscopic investigations into the formation of heterotrimers by growing a third nanoparticle domain on a two-component heterodimer seed have revealed that in some cases indiscriminate nucleation first occurs on all exposed surfaces followed by surface-mediated migration and coalescence to the preferred interface. This insight helps to rationalize observed site-specific, chemoselective growth phenomena. Additionally, new approaches for directing growth in heterotrimer synthesis, such as protection-deprotection schemes inspired by organic chemistry, are becoming effective tools for constructing hybrid nanoparticles having nonpreferred domain configurations. Alternatives to traditional seeded-growth approaches are also emerging, including insertion reactions driven by saturation-precipitation processes and orthogonal transformations of preformed hybrid constructs using ion exchange. These and other recent advances are providing a powerful suite of synthetic tools that are anticipated to enable function-driven design of high-order hybrid nanoparticles having targeted properties and applications.
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Affiliation(s)
- James M. Hodges
- Department of Chemistry and
Materials Research Institute, The Pennsylvania State University, University
Park, Pennsylvania 16802, United States
| | - Raymond E. Schaak
- Department of Chemistry and
Materials Research Institute, The Pennsylvania State University, University
Park, Pennsylvania 16802, United States
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39
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Mahadik MA, Subramanian A, Chung HS, Cho M, Jang JS. CdS/Zr:Fe 2 O 3 Nanorod Arrays with Al 2 O 3 Passivation Layer for Photoelectrochemical Solar Hydrogen Generation. CHEMSUSCHEM 2017; 10:2030-2039. [PMID: 28317268 DOI: 10.1002/cssc.201700140] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/16/2017] [Indexed: 06/06/2023]
Abstract
CdS-sensitized 1 D Zr:Fe2 O3 nanorod arrays were synthesized on fluorine-doped tin oxide substrates by a two-step hydrothermal method. The photoelectrochemical results demonstrate that the current density (4.2 mA cm-2 at 0 V vs. Ag/AgCl) recorded under illumination for the CdS/1 D Zr:Fe2 O3 photoanodes is 2.8 time higher than the bare 1 D Zr:Fe2 O3 . The extended absorbance spectrum, the reduced recombination, and the effective transport of photogenerated holes in CdS to the electrolyte facilitate enhancement in the photoelectrochemical performance. From X-ray photoelectron spectroscopy and TEM observations of the bare and aluminum oxide-treated CdS/1 D Zr:Fe2 O3 photoanodes, we could confirm that the 1 D Zr:Fe2 O3 nanorods were covered by the CdS layer and Al2 O3 layer present on surface of CdS. Furthermore, the photocurrent and stability of the CdS/1 D Zr:Fe2 O3 nanorods was significantly enhanced by Al2 O3 compared to bare CdS/1 D Zr:Fe2 O3 heterojunction owing to its ability to act as an effective holetransport- as well as photocorrosion-protecting layer. These remarkable enhancements in light-energy harvesting, improvement in charge transport, and stability directly suggest the usefulness of photoanodes for solar hydrogen generation.
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Affiliation(s)
- Mahadeo A Mahadik
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Republic of Korea
| | - Arunprabaharan Subramanian
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Republic of Korea
| | - Hee-Suk Chung
- Analytical Research Division, Korea Basic Science Institute, Jeonju, Jeollabuk-do, 54907, Republic of Korea
| | - Min Cho
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Republic of Korea
| | - Jum Suk Jang
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570-752, Republic of Korea
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40
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Christoforidis KC, Fornasiero P. Photocatalytic Hydrogen Production: A Rift into the Future Energy Supply. ChemCatChem 2017. [DOI: 10.1002/cctc.201601659] [Citation(s) in RCA: 307] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Konstantinos C. Christoforidis
- Department of Chemical and Pharmaceutical Sciences, ICCOM-CNR and INSTMUniversity of Trieste viaL.Giorgieri 1 34127 Trieste Italy
- Department of Chemical EngineeringImperial College London South Kensington Campus London SW7 2AZ UK
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, ICCOM-CNR and INSTMUniversity of Trieste viaL.Giorgieri 1 34127 Trieste Italy
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41
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Frederice R, Lencione D, Gehlen MH. Imaging the photoinduced charge injection in CdS/TiO 2 nanoparticles by the sequential fluorescence mapping method. Methods Appl Fluoresc 2017; 5:014004. [PMID: 28186003 DOI: 10.1088/2050-6120/aa5bed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The combination of a sensitizer and TiO2 nanoparticles forming a photocatalytic material is a central issue in many fields of applied photochemistry. The charge injection of emissive sensitizers into the conduction band of the semiconductor TiO2 may form a photoactive region that becomes dark, or it has a very low emission signal due to the generation of sensitizer radicals. However, by sequential coupling of a selected photoredox dye, such as resazurin, the dark region may become fluorescent at the interfaces where the charge injection has taken place due to the concomitant formation of fluorescent resorufin by cascade electron transfer. Using this strategy and a total internal reflection fluorescence microscopy (TIRFM) image, the charge injection in TiO2/CdS and SiO2/TiO2/CdS nanoparticles is investigated The method allows the charge injection efficiency of the excited CdS into TiO2 to be evaluated qualitatively, explaining the differences observed for these photocatalytic materials in H2 generation.
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Affiliation(s)
- Rafael Frederice
- Universidade de São Paulo-Instituto de Química de São Carlos-Brazil
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42
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Jiang Z, Liu J, Gao M, Fan X, Zhang L, Zhang J. Assembling Polyoxo-Titanium Clusters and CdS Nanoparticles to a Porous Matrix for Efficient and Tunable H 2 -Evolution Activities with Visible Light. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 27896898 DOI: 10.1002/adma.201603369] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/29/2016] [Indexed: 05/11/2023]
Abstract
Polyoxo-titanium clusters (PTCs) are applied to construct highly efficient ternary PTC/CdS/MIL-101 visible-light-range H2 -evolution photocatalysts. The application of PTCs not only increases the photocatalytic activities but also provides a molecular tool to tune them.
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Affiliation(s)
- Zhiqiang Jiang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
- Panzhihua Key Laboratory of Chemical Resource Engineering, Panzhihua University, 617000, Panzhihua, China
| | - Jinxiu Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
| | - Meiyan Gao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
| | - Xi Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, China
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43
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Park JH, Ramasamy P, Kim S, Kim YK, Ahilan V, Shanmugam S, Lee JS. Hybrid metal–Cu2S nanostructures as efficient co-catalysts for photocatalytic hydrogen generation. Chem Commun (Camb) 2017; 53:3277-3280. [DOI: 10.1039/c7cc00071e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unique colloidal synthesis of monodispersed dumbbell shaped metal–Cu2S (M–Cu2S where M = Pt, FePt) HNs and their utilization in hydrogen production.
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Affiliation(s)
- Jeong-Hyun Park
- Department of Energy Systems Engineering
- DGIST
- Republic of Korea
| | | | - Soonhyun Kim
- Nano & Bio Research Division, DGIST
- Daegu 711-873
- Republic of Korea
| | - Young Kwang Kim
- Nano & Bio Research Division, DGIST
- Daegu 711-873
- Republic of Korea
| | - Vignesh Ahilan
- Department of Energy Systems Engineering
- DGIST
- Republic of Korea
| | | | - Jong-Soo Lee
- Department of Energy Systems Engineering
- DGIST
- Republic of Korea
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44
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Xiong J, Jing K, Zou J, Liang S, Wu L. A hybrid of CdS/HCa2Nb3O10 ultrathin nanosheets for promoting photocatalytic hydrogen evolution. Dalton Trans 2017; 46:13935-13942. [DOI: 10.1039/c7dt03027d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid of CdS/HCa2Nb3O10 ultrathin nanosheets with a tough heterointerface was successfully fabricated. Efficient interfacial charge transfer from CdS to HCa2Nb3O10 nanosheets was achieved to realize the enhanced photocatalytic H2 evolution activity.
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Affiliation(s)
- Jinhua Xiong
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- P. R. China
- College of Chemistry and Material Science
| | - Kaiqiang Jing
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Junhua Zou
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Shijing Liang
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Ling Wu
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- P. R. China
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45
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Park H, Ou HH, Kim M, Kang U, Han DS, Hoffmann MR. Photocatalytic H2 production on trititanate nanotubes coupled with CdS and platinum nanoparticles under visible light: revisiting H2 production and material durability. Faraday Discuss 2017; 198:419-431. [DOI: 10.1039/c6fd00192k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photocatalytic production of molecular hydrogen (H2) on ternary composites of Pt, CdS, and sodium trititanate nanotubes (NaxH2−xTi3O7, TNTs) is examined in an aqueous 2-propanol (IPA) solution (typically 5 vol%) at a circum-neutral pH under visible light (λ > 420 nm). The H2 production rates are dependent on the Pt-loading level, and the optimum production rate in the Pt/CdS/TNTs is approximately six times higher than that in Pt/CdS/TiO2. A D2O solution containing 5 vol% IPA leads only to the production of D2 molecules, whereas increasing the IPA amount to 30 vol% leads to the production of DH molecules. This indicates that the Pt/CdS/TNTs composites enable H2 production via true water splitting under our typical experimental conditions. X-ray photoelectron spectroscopy (XPS) analyses of the as-synthesized Pt/CdS/TNTs and those used for 6 and 12 h show that metallic Pt on the CdS/TNTs is less susceptible to oxidation than Pt on CdS/TiO2. In addition, photocorrosion of CdS (i.e., sulfate formation) is significantly inhibited during the photocatalytic H2 production reactions in the Pt/CdS/TNTs because of the efficient charge transfer via the TNTs framework. The Pt/CdS/TNTs samples are thermally more stable than Pt/CdS/TiO2 and CdS/TNTs, effectively inhibiting the formation of CdO during the thermal synthesis. Detailed surface characterizations of the as-synthesized ternary composites are performed using X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, and XPS.
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Affiliation(s)
- Hyunwoong Park
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Korea
- School of Architectural, Civil, Environmental and Energy Engineering
| | - Hsin-Hung Ou
- Linde-Robinson Laboratories
- California Institute of Technology
- Pasadena
- USA
| | - Minju Kim
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Korea
- School of Architectural, Civil, Environmental and Energy Engineering
| | - Unseock Kang
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Korea
- School of Architectural, Civil, Environmental and Energy Engineering
| | - Dong Suk Han
- Chemical Engineering Program
- Texas A&M University at Qatar
- Education City
- Doha
- Qatar
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46
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Wenderich K, Mul G. Methods, Mechanism, and Applications of Photodeposition in Photocatalysis: A Review. Chem Rev 2016; 116:14587-14619. [DOI: 10.1021/acs.chemrev.6b00327] [Citation(s) in RCA: 545] [Impact Index Per Article: 68.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kasper Wenderich
- Photocatalytic
Synthesis
Group, MESA+ Institute for Nanotechnology, Faculty of Science and
Technology, University of Twente, Meander 229, Post
Office Box 217, 7500 AE Enschede, The Netherlands
| | - Guido Mul
- Photocatalytic
Synthesis
Group, MESA+ Institute for Nanotechnology, Faculty of Science and
Technology, University of Twente, Meander 229, Post
Office Box 217, 7500 AE Enschede, The Netherlands
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47
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CO2 induced template approach to fabricate the porous C/CdS visible photocatalyst with superior activity and stability. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.09.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Maleki M, Haghighi M. Sono-dispersion of CuS-CdS over TiO 2 in one-pot hydrothermal reactor as visible-light-driven nanostructured photocatalyst. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.08.036] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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49
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Kim SE, Woo JY, Kang SY, Min BK, Lee JK, Lee SW. A facile general route for ternary Fe 2 O 3 @TiO 2 @nanometal (Au, Ag) composite as a high-performance and recyclable photocatalyst. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.07.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Sethi YA, Panmand RP, Kadam SR, Kulkarni AK, Apte SK, Naik SD, Munirathnam N, Kulkarni MV, Kale BB. Nanostructured CdS sensitized CdWO 4 nanorods for hydrogen generation from hydrogen sulfide and dye degradation under sunlight. J Colloid Interface Sci 2016; 487:504-512. [PMID: 27816869 DOI: 10.1016/j.jcis.2016.10.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/20/2016] [Accepted: 10/24/2016] [Indexed: 01/24/2023]
Abstract
In this report, CdS nanoparticles have been grown on the surface of CdWO4 nanorods via an in-situ approach and their high photocatalytic ability toward dye degradation and H2 evolution from H2S splitting under visible light has been demonstrated. The structural and optical properties as well as morphologies with varying amount of CdS to form CdS@CdWO4 have been investigated. Elemental mapping and high resolution transmission electron microscopy (HRTEM) analysis proved the sensitization of CdWO4 nanorods by CdS nanoparticles. A decrease in the PL emission of CdWO4 was observed with increasing amount of CdS nanoparticles loading possibly due to the formation of trap states. Considering the band gap in visible region, the photocatalytic study has been performed for H2 production from H2S and dye degradation under natural sunlight. The steady evolution of H2 was observed from an aqueous H2S solution even without noble metal. Moreover, the rate of photocatalytic H2 evolution over CdS modified CdWO4 is ca. 5.6 times higher than that of sole CdWO4 under visible light. CdS modified CdWO4 showed a good ability toward the photo-degradation of methylene Blue. The rate of dye degradation over CdS modified CdWO4 is ca. 7.4 times higher than that of pristine CdWO4 under natural sunlight. With increase in amount of CdS nanoparticle loading on CdWO4 nanorods the hydrogen generation was observed to be decreased where as dye degradation rate is increased. Such nano-heterostructures may have potential in other photocatalytic reactions.
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Affiliation(s)
- Yogesh A Sethi
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Rajendra P Panmand
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Sunil R Kadam
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Aniruddha K Kulkarni
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Sanjay K Apte
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Sonali D Naik
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - N Munirathnam
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
| | - Milind V Kulkarni
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India.
| | - Bharat B Kale
- Centre for Materials for Electronics Technology (C-MET), Department of Electronics and Information and Technology (DeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India.
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