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Cho H, Seo SE, Kwon OS, Kim HI. Photonic crystal-assisted sub-bandgap photocatalysis via triplet-triplet annihilation upconversion for the degradation of environmental organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135208. [PMID: 39067295 DOI: 10.1016/j.jhazmat.2024.135208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/17/2024] [Accepted: 07/13/2024] [Indexed: 07/30/2024]
Abstract
This study explores novel approaches to enhance photocatalysis efficiency by introducing a photonic crystal (PC)-enhanced, multi-layered sub-bandgap photocatalytic reactor. The design aims to effectively utilize sub-bandgap photons that might otherwise go unused. The device consists of three types of layers: (1) two polymeric triplet-triplet annihilation upconversion (TTA-UC) layers converting low-energy green photons (λEx = 532 nm, 2.33 eV) to high-energy blue photons (λEm = 425 nm, 2.92 eV), (2) a platinum-decorated WO3 layer (Eg = 2.8 eV) serving as a visible-light photocatalyst, and (3) a PC layer optimizing both TTA-UC and photocatalysis. The integration of the PC layer resulted in a 1.9-fold increase in UC emission and a 7.9-fold enhancement in hydroxyl radical (•OH) generation, achieved under low-intensity sub-bandgap irradiation (17.6 mW cm-2). Consequently, the combined layered structure of TTA/Pt-WO3/TTA/PC achieved a remarkable 38.8-fold improvement in •OH production, leading to outstanding degradation capability for various organic pollutants (e.g., 4-chlorophenol, bisphenol A, and methylene blue). This multi-layered sub-bandgap photocatalytic structure, which uniquely combines TTA-UC and PC layers, offers valuable insights into designing efficient photocatalytic systems for future solar-driven environmental remediation.
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Affiliation(s)
- Haein Cho
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī
| | - Sung Eun Seo
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Oh Seok Kwon
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Nano Science and Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyoung-Il Kim
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī; Future City Open Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
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2
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Qian Y, Wang J, Geng X, Jia B, Wang L, Li YQ, Geng B, Huang W. Graphene Quantum Dots Nanoantibiotic-Sensitized TiO 2- x Heterojunctions for Sonodynamic-Nanocatalytic Therapy of Multidrug-Resistant Bacterial Infections. Adv Healthc Mater 2024; 13:e2400659. [PMID: 38700840 DOI: 10.1002/adhm.202400659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/14/2024] [Indexed: 05/12/2024]
Abstract
The exploration of sonodynamic therapy (SDT) as a possible replacement for antibiotics by creating reactive oxygen species (ROS) is suggested as a non-drug-resistant theranostic method. However, the low-efficiency ROS generation and complex tumor microenvironment which can deplete ROS and promote tumor growth will cause the compromised antibacterial efficacy of SDT. Herein, through an oxygen vacancy engineering strategy, TiO2- x microspheres with an abundance of Ti3+ are synthesized using a straightforward reductant co-assembly approach. The narrow bandgaps and Ti3+/Ti4+-mediated multiple-enzyme catalytic activities of the obtained TiO2- x microspheres make them suitable for use as sonosensitizers and nanozymes. When graphene quantum dot (GQD) nanoantibiotics are deposited on TiO2- x microspheres, the resulting GQD/TiO2- x shows an increased production of ROS, which can be ascribed to the accelerated separation of electron-hole pairs, as well as the peroxidase-like catalytic activity mediated by Ti3+, and the depletion of glutathione mediated by Ti4+. Moreover, the catalytic activities of TiO2- x microspheres are amplified by the heterojunctions-accelerated carrier transfer. In addition, GQDs can inhibit Topo I, displaying strong antibacterial activity and further enhancing the antibacterial activity. Collectively, the combination of GQD/TiO2- x-mediated SDT/NCT with nanoantibiotics can result in a synergistic effect, allowing for multimodal antibacterial treatment that effectively promotes wound healing.
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Affiliation(s)
- Ying Qian
- Endocrinology Department, 960 Hospital of People's Liberation Army, Jinan, Shandong, 250031, P. R. China
| | - Jingming Wang
- Orthopedic Department, 960 Hospital of People's Liberation Army, Jinan, Shandong, 250031, P. R. China
| | - Xudong Geng
- Institute of Advanced Interdisciplinary Science, School of Physics, Shandong University, Jinan, 250100, P. R. China
| | - Bingqing Jia
- Institute of Advanced Interdisciplinary Science, School of Physics, Shandong University, Jinan, 250100, P. R. China
| | - Lei Wang
- Orthopedic Department, 960 Hospital of People's Liberation Army, Jinan, Shandong, 250031, P. R. China
| | - Yong-Qiang Li
- Institute of Advanced Interdisciplinary Science, School of Physics, Shandong University, Jinan, 250100, P. R. China
| | - Bijiang Geng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Weimin Huang
- Orthopedic Department, 960 Hospital of People's Liberation Army, Jinan, Shandong, 250031, P. R. China
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3
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Zhang B, Genene Z, Wang J, Wang D, Zhao C, Pan J, Liu D, Sun W, Zhu J, Wang E. Facile Synthesis of Organic-Inorganic Hybrid Heterojunctions of Glycolated Conjugated Polymer-TiO 2-X for Efficient Photocatalytic Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402649. [PMID: 38949403 DOI: 10.1002/smll.202402649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/03/2024] [Indexed: 07/02/2024]
Abstract
The utilization of the organic-inorganic hybrid photocatalysts for water splitting has gained significant attention due to their ability to combine the advantages of both materials and generate synergistic effects. However, they are still far from practical application due to the limited understanding of the interactions between these two components and the complexity of their preparation process. Herein, a facial approach by combining a glycolated conjugated polymer with a TiO2-X mesoporous sphere to prepare high-efficiency hybrid photocatalysts is presented. The functionalization of conjugated polymers with hydrophilic oligo (ethylene glycol) side chains can not only facilitate the dispersion of conjugated polymers in water but also promote the interaction with TiO2-X forming stable heterojunction nanoparticles. An apparent quantum yield of 53.3% at 365 nm and a hydrogen evolution rate of 35.7 mmol h-1 g-1 is achieved by the photocatalyst in the presence of Pt co-catalyst. Advanced photophysical studies based on femtosecond transient absorption spectroscopy and in situ, XPS analyses reveal the charge transfer mechanism at type II heterojunction interfaces. This work shows the promising prospect of glycolated polymers in the construction of hybrid heterojunctions for photocatalytic hydrogen production and offers a deep understanding of high photocatalytic performance by such heterojunction photocatalysts.
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Affiliation(s)
- Bingke Zhang
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, SE-751 21, Sweden
| | - Zewdneh Genene
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, SE-412 96, Sweden
| | - Jinzhong Wang
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Dongbo Wang
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Chenchen Zhao
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Jingwen Pan
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, SE-751 21, Sweden
| | - Donghao Liu
- Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Wenhao Sun
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, SE-751 21, Sweden
| | - Jiefang Zhu
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, SE-751 21, Sweden
- The Key Laboratory for Ultrafine Materials of The Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Ergang Wang
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, SE-412 96, Sweden
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Wang H, Cheng Y, Zhu J, Zhang L. Photon Management Enabled by Opal and Inverse Opal Photonic Crystals: from Photocatalysis to Photoluminescence Regulation. Chempluschem 2024; 89:e202400002. [PMID: 38527947 DOI: 10.1002/cplu.202400002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
Light is a promising renewable energy source and can be converted into heat, electricity, and chemical energy. However, the efficiency of light-energy conversion is largely hindered by limited light-absorption coefficients and the low quantum yield of current-generation materials. Photonic crystals (PCs) can adjust the propagation and distribution of photons because of their unique periodic structures, which offers a compelling platform for photon management. The periodicity of materials with an alternating refractive index can be used to manipulate the dispersion of photons to generate the photonic bandgap (PBG), in which light is reflected. The slow photon effect, i. e., photon propagation at a reduced group velocity near the edges of the PBG, is widely regarded as another valuable optical property for manipulating light. Furthermore, multiple light scattering can increase the optical path, which is a vital optical property for PCs. Recently, the light reflected by PBG, the slow photon effect, and multiple light scattering have been exploited to improve light utilization efficiency in photoelectrochemistry, materials chemistry, and biomedicine to enhance light-energy conversion efficiency. In this review, the fabrication of opal or inverse opal PCs and the theory for improving the light utilization efficiency of photocatalysis, solar cells, and photoluminescence regulation are discussed. We envision photon management of opal or inverse opal PCs may provide a promising avenue for light-assisted applications to improve light-energy-conversion efficiency.
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Affiliation(s)
- Hui Wang
- Key Lab of Material Chemistry for Energy Conversion &, Storage of Ministry of Education (HUST), School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Yiyan Cheng
- Key Lab of Material Chemistry for Energy Conversion &, Storage of Ministry of Education (HUST), School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Jintao Zhu
- Key Lab of Material Chemistry for Energy Conversion &, Storage of Ministry of Education (HUST), School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Lianbin Zhang
- Key Lab of Material Chemistry for Energy Conversion &, Storage of Ministry of Education (HUST), School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
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Park SH, Kim S, Park JW, Kim S, Cha W, Lee J. In-situ and wavelength-dependent photocatalytic strain evolution of a single Au nanoparticle on a TiO 2 film. Nat Commun 2024; 15:5416. [PMID: 38937506 PMCID: PMC11211407 DOI: 10.1038/s41467-024-49862-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 06/21/2024] [Indexed: 06/29/2024] Open
Abstract
Photocatalysis is a promising technique due to its capacity to efficiently harvest solar energy and its potential to address the global energy crisis. However, the structure-activity relationships of photocatalyst during wavelength-dependent photocatalytic reactions remains largely unexplored because it is difficult to measure under operating conditions. Here we show the photocatalytic strain evolution of a single Au nanoparticle (AuNP) supported on a TiO2 film by combining three-dimensional (3D) Bragg coherent X-ray diffraction imaging with an external light source. The wavelength-dependent generation of reactive oxygen species (ROS) has significant effects on the structural deformation of the AuNP, leading to its strain evolution. Density functional theory (DFT) calculations are employed to rationalize the induced strain caused by the adsorption of ROS on the AuNP surface. These observations provide insights of how the photocatalytic activity impacts on the structural deformation of AuNP, contributing to the general understanding of the atomic-level catalytic adsorption process.
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Affiliation(s)
- Sung Hyun Park
- Department of HY-KIST Bio-Convergence, Hanyang University, Seoul, 04763, Republic of Korea
| | - Sukyoung Kim
- Department of Chemistry, Hanyang University, Seoul, 04763, Republic of Korea
- Research Institute for Natural Sciences, Hanyang University, Seoul, 04763, Republic of Korea
| | - Jae Whan Park
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science, Pohang, 37673, Republic of Korea
| | - Seunghee Kim
- Department of Chemistry, Hanyang University, Seoul, 04763, Republic of Korea
- Research Institute for Natural Sciences, Hanyang University, Seoul, 04763, Republic of Korea
| | - Wonsuk Cha
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Joonseok Lee
- Department of Chemistry, Hanyang University, Seoul, 04763, Republic of Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul, 04763, Republic of Korea.
- Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul, 04763, Republic of Korea.
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6
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Wang C, Dragoe D, Colbeau-Justin C, Haghi-Ashtiani P, Ghazzal MN, Remita H. Highly Dispersed Ni-Pt Bimetallic Cocatalyst: The Synergetic Effect Yields Pt-Like Activity in Photocatalytic Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42637-42647. [PMID: 37649420 DOI: 10.1021/acsami.3c08842] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Achieving high photocatalytic activity with the lowest possible platinum (Pt) consumption is crucial for reducing the cost of Pt-based cocatalysts and enabling large-scale applications. Bimetallic Ni-Pt cocatalysts exhibit excellent photocatalytic performance and are considered one of the most promising photocatalysts capable of replacing pure Pt for hydrogen evolution reaction (HER). However, the synergistic photocatalytic mechanism between bimetallic Ni-Pt cocatalysts needs to be further investigated. Herein, we deposit highly dispersed Ni-Pt bimetallic cocatalysts on the surface of TiO2 by radiolytic reduction. We study the dynamics of photogenerated charge carriers of the Ni-Pt-comodified TiO2 and propose their underlying electron transfer mechanisms, in which Pt acts as an electron trap, whereas Ni serves as an electron supplier. The synergistic effect is Ni/Pt ratio-dependent and can confer bimetallic Ni-Pt to pure Pt-like photocatalytic activity in HER. The Ni2-Pt1-comodified TiO2 is optimized to be the most cost-effective photocatalyst with robust stability, which exhibits about 40-fold higher performance than bare TiO2.
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Affiliation(s)
- Cong Wang
- Institut de Chimie Physique, UMR 8000 CNRS, Université Paris-Saclay, Orsay 91405, France
| | - Diana Dragoe
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182 CNRS, Université Paris-Saclay, Orsay 91405, France
| | | | - Paul Haghi-Ashtiani
- Laboratoire de Mécanique des Sols, Structures et Matériaux, CNRS UMR 8579, Centrale Supélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Mohamed Nawfal Ghazzal
- Institut de Chimie Physique, UMR 8000 CNRS, Université Paris-Saclay, Orsay 91405, France
| | - Hynd Remita
- Institut de Chimie Physique, UMR 8000 CNRS, Université Paris-Saclay, Orsay 91405, France
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7
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Li Q, Zhang Y, Zeng Y, Ding M. Ordered porous nitrogen-vacancy carbon nitride for efficient visible-light hydrogen evolution. J Colloid Interface Sci 2023; 642:53-60. [PMID: 37001457 DOI: 10.1016/j.jcis.2023.03.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023]
Abstract
Photocatalytic H2 evolution is a promising technology which could be instrumental in producing clean hydrogen energy. In regard to the photocatalyst, its band structure, morphology and light utilization have a significant influence on the H2 evolution rate and stability. Herein, a three-dimensional ordered macroporous nitrogen-vacancy carbon nitride (3DOM V-CN) photocatalyst was developed by combining vacancies with 3DOM structure for visible-light photocatalytic H2 evolution. This strategy preserved the structural properties of 3DOM to improve the light utilization and the specific surface area of the photocatalysts. Moreover, constructing suitable vacancies could trap electrons to facilitate the separation of photogenerated carriers, and extend the light absorption region of the photocatalysts by adjusting band structure, thus improving photocatalytic activity. Compared with CN (0.3 mmol h-1 g-1), 3DOM V-CN demonstrated a superior photocatalytic H2 evolution rate of 2.3 mmol h-1 g-1 (λ ≥ 420 nm) while possessing excellent stability. This work provides an effective and low-cost strategy for the design of the photocatalysts with high activity and stability by simultaneously tuning the band structure and morphology.
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Zhang T, Zhao Z, Zhang D, Liu X, Wang P, Li Y, Zhan S. Superexchange-induced Pt-O-Ti 3+ site on single photocatalyst for efficient H 2 production with organics degradation in wastewater. Proc Natl Acad Sci U S A 2023; 120:e2302873120. [PMID: 37253005 PMCID: PMC10265997 DOI: 10.1073/pnas.2302873120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023] Open
Abstract
Efficient photocatalytic H2 production from wastewater instead of pure water is a dual solution to the environmental and energy crisis, but due to the rapid recombination of photoinduced charge in the photocatalyst and inevitable electron depletion caused by organic pollutants, a significant challenge of dual-functional photocatalysis (simultaneous oxidative and reductive reactions) in single catalyst is designing spatial separation path for photogenerated charges at atomic level. Here, we designed a Pt-doped BaTiO3 single catalyst with oxygen vacancies (BTPOv) that features Pt-O-Ti3+ short charge separation site, which enables excellent H2 production performance (1519 μmol·g-1·h-1) while oxidizing moxifloxacin (k = 0.048 min-1), almost 43 and 98 times than that of pristine BaTiO3 (35 μmol·g-1·h-1 and k = 0.00049 min-1). The efficient charge separation path is demonstrated that the oxygen vacancies extract photoinduced charge from photocatalyst to catalytic surface, and the adjacent Ti3+ defects allow rapid migration of electrons to Pt atoms through the superexchange effect for H* adsorption and reduction, while the holes will be confined in Ti3+ defects for oxidation of moxifloxacin. Impressively, the BTPOv shows an exceptional atomic economy and potential for practical applications, a best H2 production TOF (370.4 h-1) among the recent reported dual-functional photocatalysts and exhibiting excellent H2 production activity in multiple types of wastewaters.
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Affiliation(s)
- Tao Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Zhiyong Zhao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Dongpeng Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
| | - Xingyu Liu
- School of Environmental Science and Engineering, Tiangong University, 300387Tianjin, China
| | - Pengfei Wang
- School of Energy and Environmental Engineering, Hebei University of Technology, 300401Tianjin, China
| | - Yi Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, 300072Tianjin, China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 300350Tianjin, China
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Chen R, Gong Y, Xie M, Rao C, Zhou L, Pang Y, Lou H, Yang D, Qiu X. Functionalized Regulation of Metal Defects in ln 2S 3 of p-n Homojunctions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5065-5077. [PMID: 36972499 DOI: 10.1021/acs.langmuir.3c00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The introduction of metal vacancies into n-type semiconductors could efficiently construct intimate contact interface p-n homojunctions to accelerate the separation of photogenerated carriers. In this work, a cationic surfactant occupancy method was developed to synthesize an indium-vacancy (VIn)-enriched p-n amorphous/crystal homojunction of indium sulfide (A/C-IS) for sodium lignosulfonate (SL) degradation. The amount of VIn in the A/C-IS could be regulated by varying the content of added cetyltrimethylammonium bromide (CTAB). Meanwhile, the steric hindrance of CTAB produced mesopores and macropores, providing transfer channels for SL. The degradation rates of A/C-IS to SL were 8.3 and 20.9 times higher than those of crystalline In2S3 and commercial photocatalyst (P25), respectively. The presence of unsaturated dangling bonds formed by VIn reduced the formation energy of superoxide radicals (•O2-). In addition, the inner electric field between the intimate contact interface p-n A/C-IS promoted the migration of electron-hole pairs. A reasonable degradation pathway of SL by A/C-IS was proposed based on the above mechanism. Moreover, the proposed method could also be applicable for the preparation of p-n homojunctions with metal vacancies from other sulfides.
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Affiliation(s)
- Runlin Chen
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yufeng Gong
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Maoliang Xie
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Cheng Rao
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lan Zhou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuxia Pang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hongming Lou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Dongjie Yang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xueqing Qiu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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Niu Q, Chen Q, Huang G, Li L, He Y, Bi J. Build-in electric field in CuWO 4/covalent organic frameworks S-scheme photocatalysts steer boosting charge transfer for photocatalytic CO 2 reduction. J Colloid Interface Sci 2023; 643:102-114. [PMID: 37054545 DOI: 10.1016/j.jcis.2023.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/15/2023]
Abstract
Covalent organic frameworks (COFs) are crystalline porous materials with enormous potential for realizing solar-driven CO2-to-fuel conversion, yet the sluggish transfer/separation of photoinduced electrons and holes remains a compelling challenge. Herein, a step (S)-scheme heterojunction photocatalyst (CuWO4-COF) was rationally fabricated by a thermal annealing method for boosting CO2 conversion to CO. The optimal CuWO4/COF composite sample, integrating 10 wt% CuWO4 with an olefin (C═C) linked COF (TTCOF), achieved a remarkable gas-solid phase CO yield as high as 7.17 ± 0.35 μmol g-1h-1 under visible light irradiation, which was significantly higher than the pure COF (1.6 ± 0.29 μmol g-1h-1). The enhanced CO2 conversion rate could be attributable to the interface engineering effect and the formation of internal electric field (IEF) directing from TTCOF to CuWO4 according to the theoretical calculation and experimental results, which also proves the electrons transfer from TTCOF to CuWO4 upon hybridization. In addition, driven by the IEF, the photoinduced electrons can be steered from CuWO4 to TTCOF under visible light irradiation as well-elucidated by in-situ irradiated X-ray photoelectron spectroscopy, verifying the S-scheme charge transfer pathway over CuWO4/COF composite heterojunctions, which greatly foster the photoreduction activity of CO2. The preparation technique of the S-scheme heterojunction photocatalyst in this study provides a paradigmatic protocol for photocatalytic solar fuel generation.
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Affiliation(s)
- Qing Niu
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China; Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Qiaoshan Chen
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Guocheng Huang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China.
| | - Liuyi Li
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China
| | - Yunhui He
- Fujian College Association Instrumental Analysis Center of Fuzhou University, Minhou, Fujian 350108, PR China
| | - Jinhong Bi
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian 350108, PR China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Minhou, Fujian 350108, PR China.
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11
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Shukla K, Gupta R, Gupta RK, Prakash J. Highly efficient visible light active doped metal oxide photocatalyst and SERS substrate for water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:34054-34068. [PMID: 36508093 DOI: 10.1007/s11356-022-24639-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/02/2022] [Indexed: 06/18/2023]
Abstract
The development of efficient nanomaterials with promising optical and surface properties for multifunctional applications has always been a subject of novel research. In this work, the study of highly efficient TiO2 nanorods (NRs) and Ta-doped TiO2 NRs (Ta-TiO2 NRs) synthesized by alkaline hydrothermal treatment followed by soaking treatment has been reported. NRs were investigated for their potential applications as recyclable/reproducible visible light active photocatalysts and surface-enhanced Raman scattering (SERS) substrates in wastewater treatment. NRs were characterized by various microscopic (scanning and transmission electron microscopy), spectroscopic (X-ray diffraction, X-ray photoelectron, UV-visible, photoluminescence, and Raman spectroscopy), and surface (Brunauer-Emmett-Teller) techniques. The NRs exhibited promising optical properties with a band gap of 2.95 eV (TiO2 NRs) and 2.58 eV (Ta-TiO2 NRs) showing excellent photo-degradation activities for methylene blue (MB) dye molecules under natural sunlight. Particularly, Ta-TiO2 NRs showed enhanced response as visible light active photocatalysts in normal sunlight and also as SERS substrate attributed to the additional defects introduced by Ta doping. It could be explained by the combined effect of doping-induced enhanced visible light absorption and charge transfer (CT) properties of Ta-TiO2 NRs. Furthermore, Ta-TiO2 NRs were investigated for their long-term stability, reproducibility of the data, and recyclability in view of their potential applications in water treatment.
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Affiliation(s)
- Komal Shukla
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India
| | - Rajeev Gupta
- Department of Physics, School of Engineering Studies, University of Petroleum & Energy Studies, Dehradun, 248007, Uttarakhand, India
| | - Raju Kumar Gupta
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India
| | - Jai Prakash
- Department of Chemistry, National Institute of Technology Hamirpur, Hamirpur, 177005, India.
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12
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Liao L, Wang M, Li Z, Wang X, Zhou W. Recent Advances in Black TiO 2 Nanomaterials for Solar Energy Conversion. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:468. [PMID: 36770430 PMCID: PMC9921477 DOI: 10.3390/nano13030468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
Titanium dioxide (TiO2) nanomaterials have been widely used in photocatalytic energy conversion and environmental remediation due to their advantages of low cost, chemical stability, and relatively high photo-activity. However, applications of TiO2 have been restricted in the ultraviolet range because of the wide band gap. Broadening the light absorption of TiO2 nanomaterials is an efficient way to improve the photocatalytic activity. Thus, black TiO2 with extended light response range in the visible light and even near infrared light has been extensively exploited as efficient photocatalysts in the last decade. This review represents an attempt to conclude the recent developments in black TiO2 nanomaterials synthesized by modified treatment, which presented different structure, morphological features, reduced band gap, and enhanced solar energy harvesting efficiency. Special emphasis has been given to the newly developed synthetic methods, porous black TiO2, and the approaches for further improving the photocatalytic activity of black TiO2. Various black TiO2, doped black TiO2, metal-loaded black TiO2 and black TiO2 heterojunction photocatalysts, and their photocatalytic applications and mechanisms in the field of energy and environment are summarized in this review, to provide useful insights and new ideas in the related field.
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13
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Zhang Z, Wen J, Zhang J, Guo D, Zhang Q. Vacancy-Modulated of CuS for Highly Antibacterial Efficiency via Photothermal/Photodynamic Synergetic Therapy. Adv Healthc Mater 2023; 12:e2201746. [PMID: 36303519 DOI: 10.1002/adhm.202201746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/08/2022] [Indexed: 02/03/2023]
Abstract
Cu-based nanomaterials have been developed to alleviate the problem of antibiotic resistance due to their superior properties and good biocompatibility. Defects in nanomaterials have a major role in improving photocatalytic performance. Herein, two CuS nanospheres with predominant VCuSCu and VCuSS vacancy (abbreviated as CuS and CuS-T150, respectively) characterized by positron annihilation spectra are synthesized. The combination of experimental and theoretical calculation results demonstrates that CuS-T150 exhibits excellent antibacterial, achieving bactericidal rates of 99.9% against to Escherichia coli (E. coli) under 808 nm laser irradiation. Compared with CuS, the superior antimicrobial activity of CuS-T150 is mainly attributed to its stronger ability to adsorb oxygen molecules, more easily bind with surface of E. coli, and higher photothermal conversion efficiency (PTCE). This work provides a deeper understanding of nanomaterials with vacancy modulated the antibacterial efficiency by synergistic effect of photodynamic and photothermal therapy.
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Affiliation(s)
- Zhihao Zhang
- College of Environment and Resource, Shanxi Laboratory for Yellow River, Shanxi University, Taiyuan, 030006, China.,Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
| | - Jinghong Wen
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Jie Zhang
- College of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Donggang Guo
- College of Environment and Resource, Shanxi Laboratory for Yellow River, Shanxi University, Taiyuan, 030006, China
| | - Quanxi Zhang
- College of Environment and Resource, Shanxi Laboratory for Yellow River, Shanxi University, Taiyuan, 030006, China.,Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China
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14
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Progress and challenges in full spectrum photocatalysts: Mechanism and photocatalytic applications. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Xiao Y, Xu W. Single-molecule fluorescence imaging for probing nanocatalytic process. Chem 2022. [DOI: 10.1016/j.chempr.2022.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Zhang X, Zhang S, Cui X, Zhou W, Cao W, Cheng D, Sun Y. Recent Advances in TiO2-based Photoanodes for Photoelectrochemical Water Splitting. Chem Asian J 2022; 17:e202200668. [PMID: 35925726 DOI: 10.1002/asia.202200668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/31/2022] [Indexed: 11/12/2022]
Abstract
Photoelectrochemical (PEC) water splitting has attracted a great attention in the past several decades which holds great promise to address global energy and environmental issues by converting solar energy into hydrogen. However, its low solar-to-hydrogen (STH) conversion efficiency remains a bottleneck for practical application. Developing efficient photoelectrocatalysts with high stability and high STH conversion efficiency is one of the key challenges. As a typical n-type semiconductor, titanium dioxide (TiO 2 ) exhibits high PEC water splitting performance, especially high chemical and photo stability. But, TiO 2 has also disadvantages such as wide band gap and fast electron-hole recombination rate, which seriously hinder its PEC performance. This review focuses on recent development in TiO 2 -based photoanodes as well as some key fundamentals. The corresponding mechanisms and key factors for high STH, and controllable synthesis and modification strategies are highlighted in this review. We conclude finally with an outlook providing a critical perspective on future trends on TiO 2 -based photoanodes for PEC water splitting.
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Affiliation(s)
- Xiaoyan Zhang
- Shanghai University, Department of chemistry, No. 99, Road Shangda, 200444, Shanghai, CHINA
| | | | - Xiaoli Cui
- Fudan University, Department of Materials Science, CHINA
| | - Wei Zhou
- Shanghai University, Department of Chemistry, CHINA
| | - Weimin Cao
- Shanghai University, Department of Chemistry, CHINA
| | | | - Yi Sun
- Shanghai Aerospace Hydrogen Energy Technology Co. Ltd, Department of R & D, CHINA
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17
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Zhao S, Song S, You Y, Zhang Y, Luo W, Han K, Ding T, Tian Y, Li X. Tuning redox ability of Zn3In2S6 with surfactant modification for highly efficient and selective photocatalytic C-C coupling. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Ma J, Zhang X, Zhang Q, Kang K, Zhang J, Wang L. Application of defective TiO2 inverse opal in photocatalytic non-oxidative CH4 coupling. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04757-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Ye J, Xu J, Tian D, Zhao X, Wang Q, Wang J, Li Y, Zhao C, Liu Z, Fu Y. Efficient photocatalytic reduction of CO2 by a rhenium-doped TiO2-x/SnO2 inverse opal S-scheme heterostructure assisted by the slow-phonon effect. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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21
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Jiang D, Zhou Y, Zhang Q, Song Q, Zhou C, Shi X, Li D. Synergistic Integration of AuCu Co-Catalyst with Oxygen Vacancies on TiO 2 for Efficient Photocatalytic Conversion of CO 2 to CH 4. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46772-46782. [PMID: 34555906 DOI: 10.1021/acsami.1c14371] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Photocatalytic reduction of CO2 toward eight-electron CH4 product with simultaneously high conversion efficiency and selectivity remains great challenging owing to the sluggish charge separation and transfer kinetics and lack of active sites for the adsorption and activation of reactants. Herein, a defective TiO2 nanosheet photocatalyst simultaneously equipped with AuCu alloy co-catalyst and oxygen vacancies (AuCu-TiO2-x NSs) was rationally designed and fabricated for the selective conversion of CO2 into CH4. The experimental results demonstrated that the AuCu alloy co-catalyst not only effectively promotes the separation of photogenerated electron-hole pairs but also acts as synergistic active sites for the reduction of CO2. The oxygen vacancies in TiO2 contribute to the separation of charge carriers and, more importantly, promote the oxidation of H2O, thus providing rich protons to promote the deep reduction of CO2 to CH4. Consequently, the optimal AuCu-TiO2-x nanosheets (NSs) photocatalyst achieves a CO2 reduction selectivity toward CH4 up to 90.55%, significantly higher than those of TiO2-x NSs (31.82%), Au-TiO2-x NSs (38.74%), and Cu-TiO2-x NSs (66.11%). Furthermore, the CH4 evolution rate over the AuCu-TiO2-x NSs reaches 22.47 μmol·g-1·h-1, which is nearly twice that of AuCu-TiO2 NSs (12.10 μmol·g-1·h-1). This research presents a unique insight into the design and synthesis of photocatalyst with oxygen vacancies and alloy metals as the co-catalyst for the highly selective deep reduction of CO2.
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Affiliation(s)
- Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yimeng Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qianxiao Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qi Song
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Changjian Zhou
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Xiangli Shi
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Di Li
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
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22
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Lv T, Xiao B, Zhou S, Zhao J, Wu T, Zhang J, Zhang Y, Liu Q. Rich oxygen vacancies, mesoporous TiO 2 derived from MIL-125 for highly efficient photocatalytic hydrogen evolution. Chem Commun (Camb) 2021; 57:9704-9707. [PMID: 34555135 DOI: 10.1039/d1cc01669e] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report a mesoporous TiO2 with a large specific surface area and rich oxygen vacancies using a Ti-based MOF (MIL-125) as a precursor through high-temperature annealing. Such integration of a unique mesoporous structure and oxygen vacancies provides effective carrier transport channels, increases surface active sites, and enhances photocatalytic activity for the hydrogen evolution reaction.
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Affiliation(s)
- Tianping Lv
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Bin Xiao
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Shiqiang Zhou
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Jianhong Zhao
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Tai Wu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Jin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Yumin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
| | - Qingju Liu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China.
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23
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Zargazi M, Entezari MH. Photoelectrochemical water splitting by a novel design of photo-anode: inverse opal-like UiO-66 sensitized by Pd and decorated with S,N graphene QDs. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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24
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Wang F, Hou T, Zhao X, Yao W, Fang R, Shen K, Li Y. Ordered Macroporous Carbonous Frameworks Implanted with CdS Quantum Dots for Efficient Photocatalytic CO 2 Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102690. [PMID: 34302403 DOI: 10.1002/adma.202102690] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/14/2021] [Indexed: 06/13/2023]
Abstract
Solar-driven photocatalytic CO2 reduction is regarded as a promising way to simultaneously mitigate the energy crisis and CO2 pollution. However, achieving high efficiency of photocatalytic CO2 reduction, especially without the assistance of sacrifice reagents or extra alkaline additives, remains a critical issue. Herein, a photocatalyst of 3D ordered macroporous N-doped carbon (NC) supported CdS quantum dots (3DOM CdSQD/NC) is successfully fabricated toward photocatalytic CO2 reduction via an in situ transformation strategy. Additionally, an amines oxidation reaction is introduced to replace the H2 O oxidation process to further boost the photocatalytic CO2 reduction efficiency. Impressively, 3DOM CdSQD/NC exhibits superior activity and selectivity in photocatalytic CO2 reduction coupled with amines oxidation, affording a CO production rate as high as 5210 µmol g-1 h-1 in the absence of any sacrificial agents and alkaline additives. Moreover, 3DOM CdSQD/NC achieves an apparent quantum efficiency of 2.9% at 450 nm. Mechanism studies indicate that the 3D ordered macropores in the NC matrix are beneficial to the transfer of photogenerated carriers. Furthermore, the highly dispersed CdS QDs on the NC skeleton are able to significantly promote the adsorption of both CO2 and amine molecules and depress the CO2 activation energy barriers by stabilizing the *COOH intermediate, directly contributing to the high activity.
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Affiliation(s)
- Fengliang Wang
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Tingting Hou
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xin Zhao
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Wen Yao
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Ruiqi Fang
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Kui Shen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yingwei Li
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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25
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Lu H, Tournet J, Dastafkan K, Liu Y, Ng YH, Karuturi SK, Zhao C, Yin Z. Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion. Chem Rev 2021; 121:10271-10366. [PMID: 34228446 DOI: 10.1021/acs.chemrev.0c01328] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Global energy and environmental crises are among the most pressing challenges facing humankind. To overcome these challenges, recent years have seen an upsurge of interest in the development and production of renewable chemical fuels as alternatives to the nonrenewable and high-polluting fossil fuels. Photocatalysis, photoelectrocatalysis, and electrocatalysis provide promising avenues for sustainable energy conversion. Single- and dual-component catalytic systems based on nanomaterials have been intensively studied for decades, but their intrinsic weaknesses hamper their practical applications. Multicomponent nanomaterial-based systems, consisting of three or more components with at least one component in the nanoscale, have recently emerged. The multiple components are integrated together to create synergistic effects and hence overcome the limitation for outperformance. Such higher-efficiency systems based on nanomaterials will potentially bring an additional benefit in balance-of-system costs if they exclude the use of noble metals, considering the expense and sustainability. It is therefore timely to review the research in this field, providing guidance in the development of noble-metal-free multicomponent nanointegration for sustainable energy conversion. In this work, we first recall the fundamentals of catalysis by nanomaterials, multicomponent nanointegration, and reactor configuration for water splitting, CO2 reduction, and N2 reduction. We then systematically review and discuss recent advances in multicomponent-based photocatalytic, photoelectrochemical, and electrochemical systems based on nanomaterials. On the basis of these systems, we further laterally evaluate different multicomponent integration strategies and highlight their impacts on catalytic activity, performance stability, and product selectivity. Finally, we provide conclusions and future prospects for multicomponent nanointegration. This work offers comprehensive insights into the development of cost-competitive multicomponent nanomaterial-based systems for sustainable energy-conversion technologies and assists researchers working toward addressing the global challenges in energy and the environment.
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Affiliation(s)
- Haijiao Lu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Julie Tournet
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Kamran Dastafkan
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yun Liu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yun Hau Ng
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Siva Krishna Karuturi
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zongyou Yin
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
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26
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Zhang X, John S. Photonic crystal light trapping for photocatalysis. OPTICS EXPRESS 2021; 29:22376-22402. [PMID: 34266003 DOI: 10.1364/oe.427218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
The Achilles heel of wide-band photocatalysts such as TiO2 is the insufficient photogeneration in the visible range under sunlight. This has been a longstanding impediment to large-scale, real-world deployment of titania-based photocatalysis applications. Instead of traditional band engineering through heavy-doping, we suggest enhancing photocatalytic efficiency of lightly-doped TiO2 using photonic crystal (PC) structures. This strongly increases solar photogeneration through novel wave-interference-based light trapping. Four photocatalyst structures - simple cubic woodpile (wdp), square lattice nanorod (nrPC), slanted conical-pore (scPore), and face-centered cubic inverse opal (invop) - are optimized and compared for light harvesting in the sub- and above-gap (282 to 550 nm) regions of weakly absorbing TiO2, with the imaginary part of the dielectric constant 0.01 in the visible range. The optimized lattice constants for the first three, and opal center-to-center distance for invop, are ∼300 - 350 nm. For fixed PC thickness, the ranking of visible light harvesting capability is: scPore > wdp ∼ nrPC > invop. The scPore PC deposited on highly reflective substrate is ideal for photocatalysis given its combination of enhanced light trapping and superior charge transport.
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27
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Yang C, Zhu Y, Li D, Liu Y, Guan C, Man X, Zhang S, Zhang L, Yang D, Xu Y. Red Phosphorus Decorated TiO 2 Nanorod Mediated Photodynamic and Photothermal Therapy for Renal Cell Carcinoma. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101837. [PMID: 34145768 DOI: 10.1002/smll.202101837] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) is a serious and tenacious disease. Photodynamic therapy (PDT) and photothermal therapy (PTT) are effective means of cancer treatment. However, PDT combined with PTT has been rarely reported in ccRCC treatment. In the present study, by developing the core-shell structured TiO2 @red phosphorus nanorods (TiO2 @RP NRs) as a photosensitizer, the feasibility and effectiveness of synchronous PDT and PTT treatments for ccRCC are demonstrated. The core-shell structured TiO2 @RP NRs are synthesized to drive the PDT and PTT for ccRCC, in which the RP shell is the sensitizer even in the near-infrared (NIR) region. The optimized TiO2 @RP NRs can respond to NIR and produce local heat under irradiation. The NRs are estimated in ccRCC treatments via cell counting kit-8 assay, propidium iodide staining, qRT-PCR, and reactive oxygen species (ROS) probes in vitro, while terminal deoxynucleotidyl transferase dUTP nick-end labeling is conducted in vivo. After NIR irradiation, TiO2 @RP NRs can efficiently kill ccRCC cells by producing local heat and ROS and cause low injury to normal kidney cells. Furthermore, treatment with TiO2 @RP NRs and NIR can kill significant numbers of deep-tissue ccRCC cells in vivo. This work highlights a promising photo-driven therapy for kidney cancer.
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Affiliation(s)
- Chengyu Yang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yukun Zhu
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering & College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Daohao Li
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering & College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Yiming Liu
- Shanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Chen Guan
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Xiaofei Man
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Shuchao Zhang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Lixue Zhang
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering & College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Dongjiang Yang
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering & College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Yan Xu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
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28
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Kang J, Zhang Y, Chai Z, Qiu X, Cao X, Zhang P, Teobaldi G, Liu LM, Guo L. Amorphous Domains in Black Titanium Dioxide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100407. [PMID: 33909930 DOI: 10.1002/adma.202100407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/27/2021] [Indexed: 06/12/2023]
Abstract
Although oxygen vacancies (Ov s) play a critical role for many applications of metal oxides, a controllable synthetic strategy for anisotropic Ov s remains a great challenge. Here, a novel strategy is proposed to achieve the regional dual structure with anisotropic Ov s at both the surface and in the interior of TiO2 by constructing amorphous domains. The as-prepared black TiO2 with amorphous domains exhibits superior activity in degrading rhodamine B (RhB) solutions, which can instantly decompose RhB with just a shake. First-principle simulations reveal that subsurface Ov s in TiO2 are energetically favored, resulting in the formation of amorphous domains in the interior region via diffusion of surface-formed Ov s into the subsurface. The stable Ov -induced amorphous domains in TiO2 with enhanced catalytic performances provide a scalable strategy to practical Ov engineering in functional metal oxides.
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Affiliation(s)
- Jianxin Kang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing, 100191, China
| | - Yan Zhang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing, 100191, China
| | - Ziwei Chai
- Beijing Computational Science Research Center, Beijing, 100193, China
- School of Physics, Beihang University, Beijing, 100191, China
| | - Xiaoyi Qiu
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing, 100191, China
| | - Xingzhong Cao
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Peng Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Gilberto Teobaldi
- Scientific Computing Department, STFC UKRI, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Li-Min Liu
- School of Physics, Beihang University, Beijing, 100191, China
| | - Lin Guo
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing, 100191, China
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29
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Yang J, Li C, Liang D, Liu Y, Li Z, Wang H, Huang H, Xia C, Zhao H, Liu Y, Zhang Q, Meng Z. Central-collapsed structure of CoFeAl layered double hydroxides and its photocatalytic performance. J Colloid Interface Sci 2021; 590:571-579. [PMID: 33581660 DOI: 10.1016/j.jcis.2021.01.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 10/22/2022]
Abstract
Layered double hydroxides (LDHs) has been regarded as one of the most potential photocatalysts for degradation of the pollutants, due to the tunable elements in the laminates, high surface area and exposed active sites. Developing a photocatalyst with a visible light activity and fast charge separation efficiency is a main research focus. In this work, a central-collapsed CoFeAl-LDHs was formed via the selective etching Al3+ in the laminates, which relied on the function of OH- produced by urea hydrolysis. The Central-collapsed structure of CoFeAl-LDHs exhibited enhanced adsorption activity and photocatalytic efficiency. The results show that the pseudo-second-order kinetic model and the Langmuir model are suitable for adsorption behavior. This etching cavity is beneficial to the adsorption of MB and provides a better platform for the direct interaction between MB and CoFeAl-LDHs. The morphology and photoelectrochemical properties of the central-collapsed structure of LDHs were characterized and used to explore the relationship between the etching degree and photocatalytic activity. The photocatalytic properties of all the samples under visible light irradiation were evaluated, and LDH-6 has the best photocatalytic activity. This work provides a novel approach for the fabrication of central-collapsed structure of layered double hydroxides photocatalysts to meet environmental and energy requirements.
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Affiliation(s)
- Junshan Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 255049 Zibo, PR China
| | - Chao Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 255049 Zibo, PR China
| | - Derui Liang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 255049 Zibo, PR China
| | - Yao Liu
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, 255049 Zibo, PR China
| | - Zhaosong Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 255049 Zibo, PR China
| | - Haiyan Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 255049 Zibo, PR China
| | - Hanhan Huang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 255049 Zibo, PR China
| | - Caifeng Xia
- School of Agricultural Engineering and Food Science, Shandong University of Technology, 255049 Zibo, PR China
| | - Hui Zhao
- School of Resources and Environmental Engineering, Shandong University of Technology, 255049 Zibo, PR China
| | - Yunyan Liu
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, 255049 Zibo, PR China
| | - Qian Zhang
- School of Resources and Environmental Engineering, Shandong University of Technology, 255049 Zibo, PR China.
| | - Zilin Meng
- School of Resources and Environmental Engineering, Shandong University of Technology, 255049 Zibo, PR China.
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30
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Awol N, Amente C, Verma G, Kim JY. Morphology and surface analyses for CH 3NH 3PbI 3 perovskite thin films treated with versatile solvent-antisolvent vapors. RSC Adv 2021; 11:17789-17799. [PMID: 35480209 PMCID: PMC9033224 DOI: 10.1039/d1ra02645c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/12/2021] [Indexed: 11/21/2022] Open
Abstract
Organometal halide perovskite (CH3NH3PbI3) semiconductors have been promising candidates as a photoactive layer for photovoltaics. Especially for high performance devices, the crystal structure and morphology of this perovskite layer should be optimized. In this experiment, by employing solvent-antisolvent vapor techniques during a modified sequential deposition of PbI2-CH3NH3I layers, the morphology engineering was carried out as a function of antisolvent species such as: chloroform, chlorobenzene, dichlorobenzene, toluene, and diethyl ether. Then, the optical, morphological, structural, and surface properties were characterized. When dimethyl sulfoxide (DMSO, solvent) and diethyl ether (antisolvent) vapors were employed, the CH3NH3PbI3 layer exhibited relatively desirable crystal structures and morphologies, resulting in an optical bandgap (E g) of 1.61 eV, crystallite size (t) of 89.5 nm, and high photoluminescence (PL) intensity. Finally, the stability of perovskite films toward water was found to be dependent on the morphologies with defects such as grain boundaries, which was evaluated through contact angle measurement.
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Affiliation(s)
- Nasir Awol
- School of Materials Science and Engineering, Jimma Institute of Technology, Jimma University P. O. Box 378 Jimma Ethiopia
- Dr Shanti Swarup Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University Chandigarh 160014 India
| | - Chernet Amente
- Department of Physics, College of Computational and Natural Science, Addis Ababa University P. O. Box 1176 Addis Ababa Ethiopia
| | - Gaurav Verma
- Dr Shanti Swarup Bhatnagar University Institute of Chemical Engineering and Technology, Panjab University Chandigarh 160014 India
- Centre for Nanoscience & Nanotechnology, University Institute for Emerging Areas in Science and Technology, Panjab University Chandigarh 160014 India
| | - Jung Yong Kim
- School of Materials Science and Engineering, Jimma Institute of Technology, Jimma University P. O. Box 378 Jimma Ethiopia
- School of Chemical Engineering, Jimma Institute of Technology, Jimma University P. O. Box 378 Jimma Ethiopia
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31
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Raja-Mogan T, Lehoux A, Takashima M, Kowalska E, Ohtani B. Slow Photon-induced Enhancement of Photocatalytic Activity of Gold Nanoparticle-incorporated Titania Inverse Opal. CHEM LETT 2021. [DOI: 10.1246/cl.200804] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tharishinny Raja-Mogan
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - Anais Lehoux
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Mai Takashima
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Ewa Kowalska
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Bunsho Ohtani
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
- Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
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32
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Xiao Y, Guo S, Tian G, Jiang B, Ren Z, Tian C, Li W, Fu H. Synergetic enhancement of surface reactions and charge separation over holey C 3N 4/TiO 2 2D heterojunctions. Sci Bull (Beijing) 2021; 66:275-283. [PMID: 36654333 DOI: 10.1016/j.scib.2020.08.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 01/20/2023]
Abstract
Efficient charge separation and rapid interfacial reaction kinetics are crucial factors that determine the efficiency of photocatalytic hydrogen evolution. Herein, a fascinating 2D heterojunction photocatalyst with superior photocatalytic hydrogen evolution performance - holey C3N4 nanosheets nested with TiO2 nanocrystals (denoted as HCN/TiO2) - is designed and fabricated via an in situ exfoliation and conversion strategy. The HCN/TiO2 is found to exhibit an ultrathin 2D heteroarchitecture with intimate interfacial contact, highly porous structures and ultrasmall TiO2 nanocrystals, leading to drastically improved charge carrier separation, maximized active sites and the promotion of mass transport for photocatalysis. Consequently, the HCN/TiO2 delivers an impressive hydrogen production rate of 282.3 μmol h-1 per 10 mg under AM 1.5 illumination and an apparent quantum efficiency of 13.4% at a wavelength of 420 nm due to the synergetic enhancement of surface reactions and charge separation. The present work provides a promising strategy for developing high-performance 2D heterojunctions for clean energy applications.
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Affiliation(s)
- Yuting Xiao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Shien Guo
- College of Chemistry and Chemical Engineering, Jiangxi Inorganic Membrane Materials Engineering Research Centre, Jiangxi Normal University, Nanchang 330022, China
| | - Guohui Tian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Baojiang Jiang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Zhiyu Ren
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Chungui Tian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China
| | - Wei Li
- Department of Chemistry, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
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33
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Fabrication of industrial-level polymer photonic crystal films at ambient temperature Based on uniform core/shell colloidal particles. J Colloid Interface Sci 2021; 584:145-153. [DOI: 10.1016/j.jcis.2020.09.084] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 11/23/2022]
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34
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Bu Y, Zhang L, Ma D, Zhuge F. Low-Temperature Synthesis of Micro–Mesoporous TiO2–SiO2 Composite Film Containing Fe–N Co-Doped Anatase Nanocrystals for Photocatalytic NO Removal. Catal Letters 2021. [DOI: 10.1007/s10562-020-03466-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Du X, Song S, Wang Y, Jin W, Ding T, Tian Y, Li X. Facile one-pot synthesis of defect-engineered step-scheme WO 3/g-C 3N 4 heterojunctions for efficient photocatalytic hydrogen production. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02478c] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Defect-engineered step-scheme WO3/g-C3N4 heterojunctions synthesized by a facile one-pot method greatly improve the photocatalytic activity for hydrogen evolution.
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Affiliation(s)
- Xiya Du
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Song Song
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Yating Wang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization
- School of Chemical Engineering and Material Science
- Tianjin University of Science & Technology
- Tianjin 300457
- P. R. China
| | - Wenfeng Jin
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Tong Ding
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Ye Tian
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Xingang Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Applied Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
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36
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Wang J, Sun Y, Fu L, Sun Z, Ou M, Zhao S, Chen Y, Yu F, Wu Y. A defective g-C 3N 4/RGO/TiO 2 composite from hydrogen treatment for enhanced visible-light photocatalytic H 2 production. NANOSCALE 2020; 12:22030-22035. [PMID: 33146195 DOI: 10.1039/d0nr05141a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Photocatalytic H2 evolution is a clean technology to alleviate energy and environmental issues. The limited light absorption and the separation efficiency of photogenerated charge carriers are the major hurdles constraining the application of numerous photocatalysts. Herein, we report a simple and effective strategy, a multistep heat-treatment method, to synthesise a defective g-C3N4/RGO/TiO2 composite to increase its rate of activity for H2 production. The defects, nitrogen and oxygen vacancies, are simultaneously introduced on the surface of the g-C3N4/RGO/TiO2 composite. The vacancy defects essentially endow g-C3N4/RGO/TiO2 with a boosted photocatalytic H2 evolution rate (4760 μmol h-1 g-1) under visible-light irradiation, which is higher than that of the most of g-C3N4/TiO2 composites. This is attributed to the improved visible-light absorption as well as the separation and transfer rate of photogenerated charge carriers arising from vacancy defects. This study may provide an avenue for preparing defective photocatalysts for efficient H2 evolution.
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Affiliation(s)
- Jing Wang
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Youcai Sun
- College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Lijun Fu
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Zhuang Sun
- State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Man Ou
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Shulin Zhao
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Yuhui Chen
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Fengjiao Yu
- College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Yuping Wu
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
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37
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Yan L, Jing C. Color Centers on Hydrogenated TiO 2 Facets Unlock Fluorescence Imaging. J Phys Chem Lett 2020; 11:9485-9492. [PMID: 33108184 DOI: 10.1021/acs.jpclett.0c02859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogenation of TiO2 provides a promising strategy to realize fluorescence imaging. The fluorescence of hydrogenated TiO2 arises from photoluminescence (PL) from the color centers. Color centers changed the surface electronic states to shorten fluorescence lifetimes, to unlock the intrinsic fluorescence of hydrogenated TiO2. Specifically, the formation of color centers and their role in determining electronic states are highly facet-dependent. Color centers corresponding to surface oxygen vacancies (Vo) on {201} and {101} facets, surface Ti3+ on {001} facets, and subsurface Vo on {100} facets were discerned, following distinct Vo formation pathways and diffusion behaviors, as well as electron localization. The electronic states in the color centers are contributed by Ti 3d orbitals with different energy levels. Distinct electronic states on each facet give rise to TiO2 coloration from white to dark gray, and the energy levels in color centers trigger unique PL emissions, enabling dark-gray hydrogenated {201} TiO2 to emit bright intrinsic fluorescence.
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Affiliation(s)
- Li Yan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chuanyong Jing
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
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38
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Yu X, Jin X, Chen X, Wang A, Zhang J, Zhang J, Zhao Z, Gao M, Razzari L, Liu H. A Microorganism Bred TiO 2/Au/TiO 2 Heterostructure for Whispering Gallery Mode Resonance Assisted Plasmonic Photocatalysis. ACS NANO 2020; 14:13876-13885. [PMID: 32965103 DOI: 10.1021/acsnano.0c06278] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The TiO2/Au nanostructure has been acknowledged as one of the most classic visible-light active photocatalysts due to the surface plasmon resonance (SPR) of Au nanoparticles. In many cases, the SPR effect only features weak visible light absorption in conventional TiO2/Au nanostructures. Here, we demonstrate a design of TiO2/Au/TiO2 with a combination of whispering gallery mode (WGM) resonances and SPR for efficient visible-light-driven photocatalysis. Escherichia coli (E. coli) were used as natural reactants as well as a template to construct an E. coli-like TiO2/Au/TiO2 nanostructure. Using numerical simulations, we show that the E. coli-like TiO2 capsule acts as the WGM resonator to interplay with the SPR effect of the Au NPs on TiO2 surface, which leads to a significant increase of visible light absorption and the local field enhancement at the Au-TiO2 interface. Accordingly, with the synergistic effect of WGM and SPR, the E. coli-like TiO2/Au/TiO2 nanostructure exhibits enhanced photocatalytic activity in the visible range. Our work reveals a promising bioapproach to a design highly visible light active plasmonic photocatalyst.
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Affiliation(s)
- Xin Yu
- Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, P. R. China
| | - Xin Jin
- INRS-EMT, 1650, Boulevard Lionel-Boulet, Varennes, Quebec J3X 1S2, Canada
| | - Xuanyu Chen
- Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, P. R. China
| | - Aizhu Wang
- Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, P. R. China
| | - Jianming Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhejiang 212013, P. R. China
| | - Jian Zhang
- Institut Charles Gerhardt de Montpellier, UMR 5253, Université de Montpellier, CNRS, ENSCM, 34095, Montpellier Cedex 5, France
| | - Zhenhuan Zhao
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710071, P. R. China
| | - Mingming Gao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, P. R. China
| | - Luca Razzari
- INRS-EMT, 1650, Boulevard Lionel-Boulet, Varennes, Quebec J3X 1S2, Canada
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, P. R. China
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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39
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Cao S, Piao L. Considerations for a More Accurate Evaluation Method for Photocatalytic Water Splitting. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009633] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuang Cao
- CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology CAS Key Laboratory of Standardization and Measurement for Nanotechnology Beijing 100190 P. R. China
| | - Lingyu Piao
- CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology CAS Key Laboratory of Standardization and Measurement for Nanotechnology Beijing 100190 P. R. China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100190 P. R. China
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40
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Cao S, Piao L. Considerations for a More Accurate Evaluation Method for Photocatalytic Water Splitting. Angew Chem Int Ed Engl 2020; 59:18312-18320. [DOI: 10.1002/anie.202009633] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Shuang Cao
- CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology CAS Key Laboratory of Standardization and Measurement for Nanotechnology Beijing 100190 P. R. China
| | - Lingyu Piao
- CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology CAS Key Laboratory of Standardization and Measurement for Nanotechnology Beijing 100190 P. R. China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100190 P. R. China
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41
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Hou J, Lan X, Shi J, Xin L, Wang L. The synergistic effect of fullerene and 3D ordered macroporous structure on promoting photocatalytic performance. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Wu M, Ding T, Wang Y, Zhao W, Xian H, Tian Y, Zhang T, Li X. Rational construction of plasmon Au assisted ferroelectric-BaTiO3/Au/g-C3N4 Z-scheme system for efficient photocatalysis. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.04.061] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Function-switchable metal/semiconductor junction enables efficient photocatalytic overall water splitting with selective water oxidation products. Sci Bull (Beijing) 2020; 65:1389-1395. [PMID: 36659218 DOI: 10.1016/j.scib.2020.04.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/17/2020] [Accepted: 04/23/2020] [Indexed: 01/21/2023]
Abstract
A novel metal/semiconductor photocatalyst, Cu nanoparticles (NPs) modified TiO2 hollow spheres (Cu/TiO2), was designed for efficient photocatalytic overall water splitting (POWS) under both ultraviolet (UV) and visible (Vis) light. This Cu/TiO2 photocatalyst possesses excellent POWS performance under Vis light at the highest level among the reported TiO2-based photocatalysts. Interestingly, the metal/semiconductor junction formed between Cu and TiO2 enables controlled water-oxidation product selectivity (H2O2 or O2) via different reaction pathways regulated by irradiation wavelengths. Under UV light, the electrons excited in TiO2 are captured by Cu NPs through the Cu/TiO2 Schottky interface for H2 production, with the photoholes in TiO2 producing H2O2 through a two-electron process; whilst under Vis light, Cu NPs act as plasmon to inject hot electrons to TiO2 for H2 production, while O2 is produced by hot holes on Cu NPs via a four-electron process. This rational design of function-switchable metal/semiconductor junction may be helpful to understand the mechanisms for POWS with desired gas/liquid water-oxidation products.
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44
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Lan K, Wang R, Wei Q, Wang Y, Hong A, Feng P, Zhao D. Stable Ti
3+
Defects in Oriented Mesoporous Titania Frameworks for Efficient Photocatalysis. Angew Chem Int Ed Engl 2020; 59:17676-17683. [DOI: 10.1002/anie.202007859] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Kun Lan
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Ruicong Wang
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
| | - Qiulong Wei
- Department of Materials Science and Engineering Fujian Key Laboratory of Materials Genome, College of Materials Xiamen University Xiamen 361005 P. R. China
| | - Yanxiang Wang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Anh Hong
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Pingyun Feng
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Dongyuan Zhao
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
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Lan K, Wang R, Wei Q, Wang Y, Hong A, Feng P, Zhao D. Stable Ti
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Defects in Oriented Mesoporous Titania Frameworks for Efficient Photocatalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007859] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kun Lan
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Ruicong Wang
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
| | - Qiulong Wei
- Department of Materials Science and Engineering Fujian Key Laboratory of Materials Genome, College of Materials Xiamen University Xiamen 361005 P. R. China
| | - Yanxiang Wang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Anh Hong
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Pingyun Feng
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Dongyuan Zhao
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
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Abstract
Noble metal (NM)-modified wide-bandgap semiconductors with activity under visible light (Vis) irradiation, due to localized surface plasmon resonance (LSPR), known as plasmonic photocatalysts, have been intensively studied over the last few years. Despite the novelty of the topic, a large number of reports have already been published, discussing the optimal properties, synthesis methods and mechanism clarification. It has been proposed that both efficient light harvesting and charge carriers’ migration are detrimental for high and stable activity under Vis irradiation. Accordingly, photonic crystals (PCs) with photonic bandgap (PBG) and slow photon effects seem to be highly attractive for efficient use of incident photons. Therefore, the study on PCs-based plasmonic photocatalysts has been conducted, mainly on titania inverse opal (IO) modified with nanoparticles (NPs) of NM. Although, the research is quite new and only several reports have been published, it might be concluded that the matching between LSPR and PBG (especially at red edge) by tuning of NMNPs size and IO-void diameter, respectively, is the most crucial for the photocatalytic activity.
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Wu H, Tan HL, Toe CY, Scott J, Wang L, Amal R, Ng YH. Photocatalytic and Photoelectrochemical Systems: Similarities and Differences. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904717. [PMID: 31814196 DOI: 10.1002/adma.201904717] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/17/2019] [Indexed: 05/10/2023]
Abstract
Photocatalytic and photoelectrochemical processes are two key systems in harvesting sunlight for energy and environmental applications. As both systems are employing photoactive semiconductors as the major active component, strategies have been formulated to improve the properties of the semiconductors for better performances. However, requirements to yield excellent performances are different in these two distinctive systems. Although there are universal strategies applicable to improve the performance of photoactive semiconductors, similarities and differences exist when the semiconductors are to be used differently. Here, considerations on selected typical factors governing the performances in photocatalytic and photoelectrochemical systems, even though the same type of semiconductor is used, are provided. Understanding of the underlying mechanisms in relation to their photoactivities is of fundamental importance for rational design of high-performing photoactive materials, which may serve as a general guideline for the fabrication of good photocatalysts or photoelectrodes toward sustainable solar fuel generation.
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Affiliation(s)
- Hao Wu
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
- School of Energy and Environment, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
| | - Hui Ling Tan
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Nishi-Ku, Fukuoka, 8190395, Japan
| | - Cui Ying Toe
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jason Scott
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Lianzhou Wang
- School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland, 4072, Australia
| | - Rose Amal
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yun Hau Ng
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
- School of Energy and Environment, City University of Hong Kong, Kowloon, 999077, Hong Kong SAR
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Zhang W, Tian Y, He H, Xu L, Li W, Zhao D. Recent advances in the synthesis of hierarchically mesoporous TiO2 materials for energy and environmental applications. Natl Sci Rev 2020; 7:1702-1725. [PMID: 34691503 PMCID: PMC8288798 DOI: 10.1093/nsr/nwaa021] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/13/2020] [Indexed: 01/26/2023] Open
Abstract
Because of their low cost, natural abundance, environmental benignity, plentiful polymorphs, good chemical stability and excellent optical properties, TiO2 materials are of great importance in the areas of physics, chemistry and material science. Much effort has been devoted to the synthesis of TiO2 nanomaterials for various applications. Among them, mesoporous TiO2 materials, especially with hierarchically porous structures, show great potential owing to their extraordinarily high surface areas, large pore volumes, tunable pore structures and morphologies, and nanoscale effects. This review aims to provide an overview of the synthesis and applications of hierarchically mesoporous TiO2 materials. In the first section, the general synthetic strategies for hierarchically mesoporous TiO2 materials are reviewed. After that, we summarize the architectures of hierarchically mesoporous TiO2 materials, including nanofibers, nanosheets, microparticles, films, spheres, core-shell and multi-level structures. At the same time, the corresponding mechanisms and the key factors for the controllable synthesis are highlighted. Following this, the applications of hierarchically mesoporous TiO2 materials in terms of energy storage and environmental protection, including photocatalytic degradation of pollutants, photocatalytic fuel generation, photoelectrochemical water splitting, catalyst support, lithium-ion batteries and sodium-ion batteries, are discussed. Finally, we outline the challenges and future directions of research and development in this area.
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Affiliation(s)
- Wei Zhang
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
| | - Yong Tian
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
| | - Haili He
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
| | - Li Xu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
| | - Wei Li
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
| | - Dongyuan Zhao
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, and iChEM, Fudan University, Shanghai 200433, China
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Piler K, Bahrim C, Twagirayezu S, Benson TJ. Lattice disorders of TiO2 and their significance in the photocatalytic conversion of CO2. ADVANCES IN CATALYSIS 2020. [DOI: 10.1016/bs.acat.2020.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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