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Liao S, Liu H, Lu Y, Tang C, Xi B, Chen L. Structural Diversity Design, Four Nucleation Methods Growth and Mechanism of 3D Hollow Box TiO 2 Nanocrystals with a Temperature-Controlled High (001) Crystal Facets Exposure Ratio. ACS OMEGA 2024; 9:1695-1713. [PMID: 38222646 PMCID: PMC10785669 DOI: 10.1021/acsomega.3c08300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/16/2024]
Abstract
Three-dimensional (3D) hollow box TiO2 nanocrystals with structural diversity have been designed and grown by four nucleation methods, including the acid dissolution denucleation method with Fe2O3 as heterogeneous nucleation, the topological phase transition method, the sonic solvothermal method, and the air atmosphere sintering method with TiOF2 as homogeneous nucleation. Through full morphology analysis and structural characterization, reasonable growth mechanisms of 3D hollow box TiO2 nanocrystals were proposed, including nucleation dissolution, Oswald ripening, and hydrolysis reactions. It was found that the high energy (001) crystal facets exposure ratio was closely correlated with reaction temperature of four nucleation-methods, which even reached 92% for the first time. Under simulated sunlight irradiation, their hydrogen production performance and photocatalytic degradation efficiency on model dye molecules rhodamine B (RhB) and methylene blue (MB) were evaluated, and as-prepared hollow box TiO2 nanocrystals prepared by the sonic solvothermal method exhibited the best photocatalytic performance, with a hydrogen production rate of 93.88 μmol/g/h. Within 70 min, the photocatalytic degradation rates of RhB and MB reached 96.59 and 75.25%, respectively, which were 5.74 and 5.54 times that of P25. Their properties are closely connected with the orderly cubic and hierarchy configuration structure of hollow box TiO2 nanocrystals, which have a high exposure ratio of (001) facet controlled by reaction temperatures, thereby greatly improving the photocatalytic activity. This study provides a classic reference for improving the properties of hollow box TiO2 nanocrystals through structural diversity design and various methods of nanocrystal growth.
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Affiliation(s)
- Shengqiang Liao
- Key
Laboratory of Catalysis and Energy Materials Chemistry of Ministry
of Education & Hubei Key Laboratory of Catalysis and Materials
Science, South-Central Minzu University, Wuhan 430074, China
| | - Huan Liu
- Key
Laboratory of Catalysis and Energy Materials Chemistry of Ministry
of Education & Hubei Key Laboratory of Catalysis and Materials
Science, South-Central Minzu University, Wuhan 430074, China
| | - Yanfei Lu
- Key
Laboratory of Catalysis and Energy Materials Chemistry of Ministry
of Education & Hubei Key Laboratory of Catalysis and Materials
Science, South-Central Minzu University, Wuhan 430074, China
| | - Chenglong Tang
- Key
Laboratory of Catalysis and Energy Materials Chemistry of Ministry
of Education & Hubei Key Laboratory of Catalysis and Materials
Science, South-Central Minzu University, Wuhan 430074, China
| | - Benjun Xi
- Hubei
Three Gorges Laboratory, Yichang 443000, China
| | - Lianqing Chen
- Key
Laboratory of Catalysis and Energy Materials Chemistry of Ministry
of Education & Hubei Key Laboratory of Catalysis and Materials
Science, South-Central Minzu University, Wuhan 430074, China
- Hubei
Three Gorges Laboratory, Yichang 443000, China
- Department
of Chemistry, University of Wisconsin-Platteville, Platteville, Wisconsin 53818, United States
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2
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Teja YN, Sakar M. Comprehensive Insights into the Family of Atomically Thin 2D-Materials for Diverse Photocatalytic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303980. [PMID: 37461252 DOI: 10.1002/smll.202303980] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/05/2023] [Indexed: 11/16/2023]
Abstract
2D materials with their fascinating physiochemical, structural, and electronic properties have attracted researchers and have been used for a variety of applications such as electrocatalysis, photocatalysis, energy storage, magnetoresistance, and sensing. In recent times, 2D materials have gained great momentum in the spectrum of photocatalytic applications such as pollutant degradation, water splitting, CO2 reduction, NH3 production, microbial disinfection, and heavy metal reduction, thanks to their superior properties including visible light responsive band gap, improved charge separation and electron mobility, suppressed charge recombination and high surface reactive sites, and thus enhance the photocatalytic properties rationally as compared to 3D and other low-dimensional materials. In this context, this review spot-lights the family of various 2D materials, their properties and their 2D structure-induced photocatalytic mechanisms while giving an overview on their synthesis methods along with a detailed discussion on their diverse photocatalytic applications. Furthermore, the challenges and the future opportunities are also presented related to the future developments and advancements of 2D materials for the large-scale real-time photocatalytic applications.
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Affiliation(s)
- Y N Teja
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
| | - Mohan Sakar
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
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3
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Wang W, Wu Y, Chen L, Xu C, Liu C, Li C. Fabrication of Z-Type TiN@(A,R)TiO 2 Plasmonic Photocatalyst with Enhanced Photocatalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1984. [PMID: 37446500 DOI: 10.3390/nano13131984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023]
Abstract
Plasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO2-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-enhanced TiN@anatase-TiO2/rutile-TiO2 Z-type heterojunction photocatalyst with the strong interface of the N-O chemical bond was synthesized by hydrothermal oxidation of TiN. The prepared photocatalyst shows desirable visible light absorption and good visible-light-photocatalytic activity. The enhancement in photocatalytic activities contribute to the plasma resonance effect of TiN, the N-O bond-connected charge transfer channel at the TiO2/TiN heterointerface, and the synergistically Z-type charge transfer pathway between the anatase TiO2 (A-TiO2) and rutile TiO2 (R-TiO2). The optimization study shows that the catalyst with a weight ratio of A-TiO2/R-TiO2/TiN of approximately 15:1:1 achieved the best visible light photodegradation activity. This work demonstrates the effectiveness of fabricating plasmonic effect-enhanced Z-type heterostructure semiconductor photocatalysts with enhanced visible-light-photocatalytic activities.
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Affiliation(s)
- Wanting Wang
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yuanting Wu
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Long Chen
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Chenggang Xu
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Changqing Liu
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Chengxin Li
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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4
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Wang D, Zhan E, Wang S, Liu X, Yan G, Chen L, Wang X. Surface Coordination of Pd/ZnIn 2S 4 toward Enhanced Photocatalytic Activity for Pyridine Denitrification. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010282. [PMID: 36615476 PMCID: PMC9822349 DOI: 10.3390/molecules28010282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
New surface coordination photocatalytic systems that are inspired by natural photosynthesis have significant potential to boost fuel denitrification. Despite this, the direct synthesis of efficient surface coordination photocatalysts remains a major challenge. Herein, it is verified that a coordination photocatalyst can be constructed by coupling Pd and CTAB-modified ZnIn2S4 semiconductors. The optimized Pd/ZnIn2S4 showed a superior degradation rate of 81% for fuel denitrification within 240 min, which was 2.25 times higher than that of ZnIn2S4. From the in situ FTIR and XPS spectra of 1% Pd/ZnIn2S4 before and after pyridine adsorption, we find that pyridine can be selectively adsorbed and form Zn⋅⋅⋅C-N or In⋅⋅⋅C-N on the surface of Pd/ZnIn2S4. Meanwhile, the superior electrical conductivity of Pd can be combined with ZnIn2S4 to promote photocatalytic denitrification. This work also explains the surface/interface coordination effect of metal/nanosheets at the molecular level, playing an important role in photocatalytic fuel denitrification.
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Affiliation(s)
- Deling Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Erda Zhan
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Shihui Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Xiyao Liu
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
| | - Guiyang Yan
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
- Correspondence: (G.Y.); (L.C.); (X.W.); Tel.: +86-13809566652 (G.Y.); +86-156959097359 (L.C.); +86-13600887951 (X.W.)
| | - Lu Chen
- Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde 352100, China
- Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China
- Correspondence: (G.Y.); (L.C.); (X.W.); Tel.: +86-13809566652 (G.Y.); +86-156959097359 (L.C.); +86-13600887951 (X.W.)
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
- Correspondence: (G.Y.); (L.C.); (X.W.); Tel.: +86-13809566652 (G.Y.); +86-156959097359 (L.C.); +86-13600887951 (X.W.)
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5
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Yang H, Dai K, Zhang J, Dawson G. Inorganic-organic hybrid photocatalysts: Syntheses, mechanisms, and applications. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64096-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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Dense ternary-size particles interstitial filling gradation stacking model for preparing high-quality indium tin oxide targets. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Long Y, Yuan C, Wang X, Jin D, Zhou H, Wang Q, Lu C, Chen Y, Cong Y, Wang Q, Zhang Y. Dielectric barrier discharge plasma-assisted modification of g-C 3N 4/Ag 2O/TiO 2-NRs composite enhanced photoelectrocatalytic activity. J Environ Sci (China) 2021; 104:113-127. [PMID: 33985715 DOI: 10.1016/j.jes.2020.11.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Dielectric barrier discharge (DBD) plasma applied as surface treatment technology was employed for the modification of Ag2O and graphitic carbon nitride (g-C3N4) powders. Subsequently, the pretreated powders were sequentially loaded onto TiO2 nanorods (TiO2-NRs) via electro-deposition, followed by calcination at N2 atmosphere. The results indicated that at the optimal plasma discharge time of 5 min for modification of g-C3N4 and Ag2O, photocurrent density of ternary composite was 6 times to bare TiO2-NRs under UV-visible light irradiation. Phenol was degraded by using DBD plasma-modified g-C3N4/Ag2O/TiO2-NRs electrode to analyze the photoelectrocatalytic performance. The removal rate of phenol for g-C3N4-5/Ag2O-5/TiO2-NRs electrode was about 3.07 times to that for TiO2-NRs electrode. During active species scavengers' analysis, superoxide radicals and hydroxyl radicals were the main oxidation active species for pollutants degradation. A possible electron-hole separation and transfer mechanism of ternary composite with high photoelectrocatalytic performance was proposed.
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Affiliation(s)
- Yupei Long
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Chenchen Yuan
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Xiaomin Wang
- Ecological Environmental Science Design and Research Institute of Zhejiang Province, Hangzhou, 310007, China
| | - Dongyan Jin
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Hong Zhou
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Qiongyin Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Chenyang Lu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Yuqi Chen
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Yanqing Cong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Yi Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China.
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8
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He H, Wang X, Cheng C, Yang S, Wang X, Liu Q, Wang Y, Wang Z, Zhang L, Sun C. Degradation of organophosphorus flame retardant tri(chloro-propyl)phosphate (TCPP) by (001) crystal plane of TiO 2 photocatalysts. ENVIRONMENTAL TECHNOLOGY 2021; 42:1612-1622. [PMID: 31587596 DOI: 10.1080/09593330.2019.1675771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
This paper demonstrates the successful synthesis of TiO2 with (001) crystal plane; its morphology and structure were characterized using XRD, TEM and Raman spectrometer. The results showed that TiO2 nanosheets were bounded by (001) facets on both the top and bottom. TiO2-001/UV photocatalytic process was proved to be a powerful method for degrading tri(chloro-propyl) phosphate (TCPP) in aqueous solution. Under the given parameters, 95% of TCPP was removed in 360 min. The photodegradation followed the pseudo-first-order kinetic reaction. The reactive species during photocatalytic oxidation of TiO2-001 was mainly hydroxyl radical. TCPP was decomposed into small molecule organics by hydroxyl radicals, along with the release of PO43- and Cl-, and most of these intermediates were eventually degraded into carbon dioxide and water.
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Affiliation(s)
- Huan He
- School of Environment, Nanjing Normal University, Nanjing, People's Republic of China
| | - Xiaohan Wang
- School of Environment, Nanjing Normal University, Nanjing, People's Republic of China
| | - Chen Cheng
- School of Chemistry and Life Science, Chengdu Normal University, Chengdu, People's Republic of China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, People's Republic of China
| | - Xiaomen Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
| | - Qing Liu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
| | - Yong Wang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jinlin, People's Republic of China
| | - Zunyao Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
| | - Limin Zhang
- School of Environment, Nanjing Normal University, Nanjing, People's Republic of China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
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9
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Hu W, Jiang M, Liang R, Huang R, Xia Y, Liang Z, Yan G. Construction of Bi 2MoO 6/CdS heterostructures with enhanced visible light photocatalytic activity for fuel denitrification. Dalton Trans 2021; 50:2596-2605. [PMID: 33522547 DOI: 10.1039/d0dt03922e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this work, a novel step-scheme (S-scheme) Bi2MoO6/CdS heterojunction (HJ) photocatalyst (PC) was successfully prepared by a two-step solvothermal method for the first time. One-dimensional CdS nanorods were prepared by a simple solvothermal method as a synthesis template. Then, a Bi2MoO6 precursor was added to obtain a series of Bi2MoO6/CdS HJ composite catalytic materials with different morphologies. The photocatalytic performance of the catalyst was investigated by simulating fuel denitration as a probe reaction under visible light excitation (>420 nm). When compared with pure Bi2MoO6 and CdS, the 0.65-Bi2MoO6/CdS composite shows the highest photocatalytic activity for pyridine degradation. Degradation of pyridine reached 81% after 240 min of visible light excitation. The degradation rate of 0.65-Bi2MoO6/CdS reached 0.4471 h-1, which was 1.8 and 3.2 times higher than that of CdS (0.2493 h-1) and Bi2MoO6 (0.1427 h-1), respectively. Combined with a series of characterisation results, the improvement in pyridine degradation activity was mainly attributed to (1) the S-scheme HJ structure between Bi2MoO6 and CdS, which greatly promoted the separation of photogenerated electrons and holes while retaining its strong redox ability, (2) the large specific surface area, which provided abundant active sites and efficient adsorption performance and catalytic performance, and (3) the special morphology, which induced multiple reflections of light, thereby improving absorption and utilisation of light. Moreover, after four cycles of pyridine denitrification, the samples still exhibited high activity, indicating good stability and recyclability of the composite catalyst. These findings provide a basis for the development of composite PCs for efficient fuel denitration under visible light irradiation.
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Affiliation(s)
- Weineng Hu
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, P. R. China
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Zhao Z, Shen B, Hu Z, Zhang J, He C, Yao Y, Guo SQ, Dong F. Recycling of spent alkaline Zn-Mn batteries directly: Combination with TiO 2 to construct a novel Z-scheme photocatalytic system. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123236. [PMID: 32947685 DOI: 10.1016/j.jhazmat.2020.123236] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
Recycling of spent alkaline Zn-Mn batteries (S-AZMB) has always been a focus of attention in environmental and energy fields. However, the current research mostly concentrated in the recovery of purified materials, and ignores the direct reuse of S-AZMB. Herein, we propose a new concept for the first time that unpurified S-AZMB can be used as raw materials for preparation of Z-scheme photocatalytic system in combination with TiO2. A series of characterizations and experiments confirm that the combination with S-AZMB not only extends the response of TiO2 to visible light, but also significantly enhances the separation ability of photogenerated electron-hole pairs. In the toluene removal experiment, the degradation kinetic rate of Z-scheme TiO2@S-AZMB photocatalyst reaches 21.0 and 10.5 times than that of TiO2 and S-AZMB, respectively. More notably, this S-AZMB based Z-scheme photocatalyst can maintain structural and photocatalytic performance stability in cyclic catalytic reactions. We believe that this work not only expands the research concept of recycling S-AZMB, but also provides a new idea for designing highly efficient Z-scheme photocatalysts.
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Affiliation(s)
- Zhong Zhao
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Boxiong Shen
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China.
| | - Zhenzhong Hu
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Jianwei Zhang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China
| | - Chuan He
- Xi'an Thermal Power Research Institute Co., Ltd., Suzhou Branch, Suzhou, 215153, PR China
| | - Yan Yao
- Xi'an Thermal Power Research Institute Co., Ltd., Suzhou Branch, Suzhou, 215153, PR China
| | - Sheng-Qi Guo
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, PR China.
| | - Fan Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, PR China
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11
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Li X, Wu X, Liu S, Li Y, Fan J, Lv K. Effects of fluorine on photocatalysis. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63594-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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SPR effect of Au nanoparticles on the visible photocatalytic RhB degradation and NO oxidation over TiO2 hollow nanoboxes. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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13
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Lu Y, Ou X, Wang W, Fan J, Lv K. Fabrication of TiO2 nanofiber assembly from nanosheets (TiO2-NFs-NSs) by electrospinning-hydrothermal method for improved photoreactivity. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63470-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Liang R, Liang Z, Chen F, Xie D, Wu Y, Wang X, Yan G, Wu L. Sodium dodecyl sulfate-decorated MOF-derived porous Fe2O3 nanoparticles: High performance, recyclable photocatalysts for fuel denitrification. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63402-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Controlled Synthesis of Mesoporous CeO2-WO3/TiO2 Microspheres Catalysts for the Selective Catalytic Reduction of NOx with NH3. CATALYSIS SURVEYS FROM ASIA 2019. [DOI: 10.1007/s10563-019-09278-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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16
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Wang J, Liu B, Nakata K. Effects of crystallinity, {001}/{101} ratio, and Au decoration on the photocatalytic activity of anatase TiO2 crystals. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(18)63174-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Mei Q, Zhang F, Wang N, Yang Y, Wu R, Wang W. TiO2/Fe2O3 heterostructures with enhanced photocatalytic reduction of Cr(vi) under visible light irradiation. RSC Adv 2019; 9:22764-22771. [PMID: 35519488 PMCID: PMC9067145 DOI: 10.1039/c9ra03531a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/13/2019] [Indexed: 12/29/2022] Open
Abstract
We report a study on the synthesis of TiO2/Fe2O3 (TF) nanocomposites and their photocatalytic performance under visible-light irradiation. The characterization of structure and morphology shows that hematite Fe2O3 was deposited on anatase TiO2 nanoparticles with particle sizes in the range of 20–100 nm. In contrast to pure TiO2 and pure Fe2O3, the nanocomposites exhibited remarkable photocatalytic activity. For example, the photoreduction efficiency of TF0.5 reaches 100% for a 100 ppm Cr(vi) solution within 160 minutes. The photochemical properties were studied by various methods. Finally, we conclude that the excellent performance of the photocatalysts is mainly attributed to two aspects: the enhanced absorption of visible light and the synergistic effect of an internal electric field at the heterojunction and citric acid for promoting the separation of electron–hole pairs. A TiO2/Fe2O3 heterojunction with an internal electric field was constructed for enhancing photocatalytic reduction efficiency of Cr(vi).![]()
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Affiliation(s)
- Qiufeng Mei
- Key Laboratory of Oil & Gas Fine Chemicals
- College of Chemistry and Chemical Engineering of Xinjiang University
- Urumqi 830046
- China
| | - Feiyan Zhang
- Key Laboratory of Oil & Gas Fine Chemicals
- College of Chemistry and Chemical Engineering of Xinjiang University
- Urumqi 830046
- China
| | - Ning Wang
- Key Laboratory of Oil & Gas Fine Chemicals
- College of Chemistry and Chemical Engineering of Xinjiang University
- Urumqi 830046
- China
| | - Yun Yang
- Nanomaterials and Chemistry Key Laboratory
- Wenzhou University
- Wenzhou 325027
- China
| | - Ronglan Wu
- Key Laboratory of Oil & Gas Fine Chemicals
- College of Chemistry and Chemical Engineering of Xinjiang University
- Urumqi 830046
- China
| | - Wei Wang
- Department of Chemistry and Center for Pharmacy
- University of Bergen
- Bergen 5020
- Norway
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18
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Qin Q, Shi Q, Meng J, Wan J, Hu Z. Visible-Light Response and High-Efficiency Photocatalytic Elimination of Polycyclic Organic Pollutants of Layer-By-Layer Assembled Ternary Nanotubular Catalysts. ChemistrySelect 2018. [DOI: 10.1002/slct.201801806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qingyuan Qin
- National Engineering Lab of Textile Fiber Materials & Processing Technology; Zhejiang Sci-Tech University; Hangzhou 310018 PRChina
| | - Qingdan Shi
- National Engineering Lab of Textile Fiber Materials & Processing Technology; Zhejiang Sci-Tech University; Hangzhou 310018 PRChina
| | - Junjing Meng
- National Engineering Lab of Textile Fiber Materials & Processing Technology; Zhejiang Sci-Tech University; Hangzhou 310018 PRChina
| | - Junmin Wan
- National Engineering Lab of Textile Fiber Materials & Processing Technology; Zhejiang Sci-Tech University; Hangzhou 310018 PRChina
- State Key Laboratory of advanced Textiles Materials and Manufacture Technology; MOE; Zhejiang Sci-Tech University; Hangzhou 310018 PR China
| | - Zhiwen Hu
- National Engineering Lab of Textile Fiber Materials & Processing Technology; Zhejiang Sci-Tech University; Hangzhou 310018 PRChina
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19
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Shi T, Duan Y, Lv K, Hu Z, Li Q, Li M, Li X. Photocatalytic Oxidation of Acetone Over High Thermally Stable TiO 2 Nanosheets With Exposed (001) Facets. Front Chem 2018; 6:175. [PMID: 29868569 PMCID: PMC5968306 DOI: 10.3389/fchem.2018.00175] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 04/30/2018] [Indexed: 02/02/2023] Open
Abstract
Anatase TiO2 (A-TiO2) usually exhibits superior photocatalytic activity than rutile TiO2 (R-TiO2). However, the phase transformation from A-TiO2 to R-TiO2 will inevitably happens when the calcination temperature is up to 600°C, which hampers the practical applications of TiO2 photocatalysis in hyperthermal situations. In this paper, high energy faceted TiO2 nanosheets (TiO2-NSs) with super thermal stability was prepared by calcination of TiOF2 cubes. With increase in the calcination temperature from 300 to 600°C, TiOF2 transforms into TiO2 hollow nanoboxes (TiO2-HNBs) assembly from TiO2-NSs via Ostwald Rippening process. Almost all of the TiO2-HNBs are disassembled into discrete TiO2-NSs when calcination temperature is higher than 700°C. Phase transformation from A-TiO2 to R-TiO2 begins at 1000°C. Only when the calcination temperature is higher than 1200°C can all the TiO2-NSs transforms into R-TiO2. The 500°C-calcined sample (T500) exhibits the highest photoreactivity toward acetone oxidation possibly because of the production of high energy TiO2-NSs with exposed high energy (001) facets and the surface adsorbed fluorine. Surface oxygen vacancy, due to the heat-induced removal of surface adsorbed fluoride ions, is responsible for the high thermal stability of TiO2-NSs which are prepared by calcination of TiOF2 cubes.
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Affiliation(s)
- Ting Shi
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Youyu Duan
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Kangle Lv
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Zhao Hu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Qin Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Mei Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China
| | - Xiaofang Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China.,College of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, China
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20
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Zhang C, Cao A, Chen L, Lv K, Wu T, Deng K. One-step topological preparation of carbon doped and coated TiO2 hollow nanocubes for synergistically enhanced visible photodegradation activity. RSC Adv 2018; 8:21431-21443. [PMID: 35539909 PMCID: PMC9080932 DOI: 10.1039/c8ra02427h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/31/2018] [Indexed: 11/21/2022] Open
Abstract
Various three-dimensional TiO2 hollow structures have attracted strong scientific and technological attention due to their excellent properties. 3D hierarchical TiO2 hollow nanocubes (TiO2-HNBs) are not good candidates for industrial photocatalytic applications due to their large energy gap which is only activated by UV light. Herein, visible-light-responsive carbon doped and coated TiO2-HNBs (C@TiO2-HNBs) with a dominant exposure of {001} facets have been prepared via a template-engaged topotactic transformation process using facile one-step solvothermal treatment and a solution containing ethanol, glucose and TiOF2. The effects of reaction time and glucose/TiOF2 mass ratio on the structure and performance of C@TiO2-HNBs were systematically studied. We found that glucose played an important role in providing H2O during the topological transformation from self-templated TiOF2 cubes into 3D hierarchical TiO2 hollow nanocubes versus dehydration reactions, where its main function was as a carbon source. Coated carbon was deposited predominantly on the surface as sp2 graphitic carbon in extended p conjugated graphite-like environments, and doped carbon mainly replaced Ti atoms in the surface lattice to form a carbonate structure. The results were confirmed using TEM SEM, EDS, XRD, FT-IR, XPS and Raman spectroscopic studies. The C@TiO2-HNBs achieved greatly improved RhB photodegradation activity under visible light irradiation. The catalyst prepared with glucose/TiOF2 at a mass ratio of 0.15 (T24-0.15) showed the highest photodegradation rate of 96% in 40 min, which is 7.0 times higher than those of the TiO2-HNBs and P25. This new synthetic approach proposes a novel way to construct carbon hybridized 3D hierarchical TiO2 hollow nanocubes by combining two modification methods, “element doped” and “surface sensitized”, at the same time. Herein, visible-light-responsive carbon doped and coated TiO2-HNBs have been prepared via a template-engaged topotactic transformation process. ![]()
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Affiliation(s)
- Chengjiang Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Amin Cao
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Lianqing Chen
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
- Department of Chemistry
| | - Kangle Lv
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Tsunghsueh Wu
- Department of Chemistry
- University of Wisconsin-Platteville
- Platteville
- USA
| | - Kejian Deng
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
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