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Zhang L, Li X, Xu H, Zhang W, Yin X, Tian Y, Wang Q, Ma J. Construction of a novel S-scheme AgVO 3/CaIn 2S 4 heterostructure for efficient photodegradation of tetracycline hydrochloride. Dalton Trans 2024; 53:12710-12719. [PMID: 39017632 DOI: 10.1039/d4dt01349b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Constructing an S-scheme system with highly active catalysts is a significant approach for improving the separation of photoinduced carriers to solve the related environmental aggravation. In this study, a well-designed S-scheme AgVO3/CaIn2S4 photocatalyst was synthesized for water purification by in situ growing CaIn2S4 nanocrystals on AgVO3 nanorod surfaces. The optimized AgVO3/CaIn2S4 heterostructure demonstrates an enhanced photocatalytic efficiency (94.1%) toward tetracycline hydrochloride (TCH) degradation compared with bare AgVO3 (42.6%) and CaIn2S4 (81.6%). The significant enhancement of photocatalytic activity is attributed to the S-scheme charge transfer mechanism in the AgVO3/CaIn2S4 heterostructure, which effectively directs photogenerated charge migration, boosts charge transfer, and preserves the high redox capacity of photoexcited electrons and holes on different active sites. This study is expected to offer insights into strategically designing and preparing S-scheme heterojunction photocatalysts to improve water purification.
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Affiliation(s)
- Lina Zhang
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
- Institute of Ocean Research, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China
| | - Xiaodong Li
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
| | - Haifeng Xu
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
| | - Wei Zhang
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
- Institute of Ocean Research, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China
| | - Xiaotong Yin
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
| | - Yuxin Tian
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
| | - Qiushi Wang
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
| | - Jinwen Ma
- College of Physical Science and Technology, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China.
- Institute of Ocean Research, Bohai University, 121013 Jinzhou, Liaoning, People's Republic of China
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2
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Ghamarpoor R, Fallah A, Jamshidi M. A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO 2-Based Photocatalysts for Photodegradation of Contaminants. ACS OMEGA 2024; 9:25457-25492. [PMID: 38911730 PMCID: PMC11191136 DOI: 10.1021/acsomega.3c08717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
The environment being surrounded by accumulated durable waste organic compounds has become a critical crisis for human societies. Generally, organic effluents of industrial plants released into the water source and air are removed by some physical and chemical processes. Utilizing photocatalysts as cost-effective, accessible, thermally/mechanically stable, nontoxic, reusable, and powerful UV-absorber compounds creates a new gateway toward the removal of dissolved, suspended, and gaseous pollutants even in trace amounts. TiO2 and ZnO are two prevalent photocatalysts in the field of removing contaminants from wastewater and air. Structural modification of the photocatalysts with metals, nonmetals, metal ions, and other semiconductors reduces the band gap energy and agglomeration and increases the affinity toward organic compounds in the composite structures to expand their usability on an industrial scale. This increases the extent of light absorbance and improves the photocatalytic efficiency. Selecting a suitable synthesis method is necessary to prepare a target photocatalyst with distinct properties such as high specific surface area, numerous surface functional groups, and an appropriate crystalline phase. In this Review, significant parameters for the synthesis and modification of TiO2- and ZnO-based photocatalysts are discussed in detail. Several proposed mechanistic routes according to photocatalytic composite structures are provided. Some electrochemical analyses using charge carrier trapping agents and delayed recombination help to plot mechanistic routes according to the direction of photoexcited species (electron-hole pairs) and design more effective photocatalytic processes in terms of cost-effective photocatalysts, saving time and increasing productivity.
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Affiliation(s)
- Reza Ghamarpoor
- Department
of Petroleum Engineering, Faculty of Engineering, University of Garmsar, Garmsar 3588115589, Iran
- Constructional
Polymers and Composites Research Lab, School of Chemical, Petroleum
and Gas Engineering, Iran University of
Science and Technology (IUST), Tehran 1311416846, Iran
| | - Akram Fallah
- Department
of Chemical Technologies, Iranian Research
Organization for Science and Technology (IROST), Tehran 3313193685, Iran
| | - Masoud Jamshidi
- Constructional
Polymers and Composites Research Lab, School of Chemical, Petroleum
and Gas Engineering, Iran University of
Science and Technology (IUST), Tehran 1311416846, Iran
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3
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Zhang W, Zhang X, Zhang L, Ma J, Yin X, Tian Y, Wang C, Wang Q. A 3D hierarchical TiO 2/CaIn 2S 4/C 3N 4arrays photoanode with dual-heterojunction for enhanced photoelectrochemical performance. NANOTECHNOLOGY 2024; 35:155402. [PMID: 38198715 DOI: 10.1088/1361-6528/ad1d17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
A novel 3D hierarchical TiO2/CaIn2S4/C3N4arrays with dual heterojunctions photoanode is constructed by stepwise deposition of CaIn2S4nanosheets and ultrathin C3N4onto the well-aligned TiO2nanorods arrays. Integrating the merit of the superior ability of CaIn2S4and C3N4to harvest visible light, dual type-Ⅱ heterojunction band structure and one-dimensional ordered nanostructures, the TiO2/CaIn2S4/C3N4photoanode exhibits simultaneous significant improvements in visible-light harvesting, charge separation and electron transfer capability. At 1.23 V (versus reversible hydrogen electrode) under AM 1.5 G irradiation, the TiO2/CaIn2S475/C3N4photoanode exhibits a photocurrent density of 4.5 mA cm-2, which is 5.2 and 51.1-fold higher than that of TiO2/CaIn2S475 and pristine TiO2photoanode, respectively. Moreover, the applied bias photo-to-current efficiency (ABPE) of the TiO2/CaIn2S475/C3N4photoanode reaches 3.5% at 0.36 V (versus reversible hydrogen electrode). These results are helpful for fabricating more efficient heterostructure photoelectrodes.
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Affiliation(s)
- Wei Zhang
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou 121013, People's Republic of China
| | - Xing Zhang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, People's Republic of China
| | - Lina Zhang
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou 121013, People's Republic of China
| | - Jinwen Ma
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou 121013, People's Republic of China
| | - Xiaotong Yin
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
| | - Yuxin Tian
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
| | - Chuang Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, People's Republic of China
| | - Qiushi Wang
- College of Physical Science and Technology, Bohai University, Jinzhou 121013, People's Republic of China
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4
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Ameen F, Mostafazadeh R, Hamidian Y, Erk N, Sanati AL, Karaman C, Ayati A. Modeling of adsorptive removal of azithromycin from aquatic media by CoFe 2O 4/NiO anchored microalgae-derived nitrogen-doped porous activated carbon adsorbent and colorimetric quantifying of azithromycin in pharmaceutical products. CHEMOSPHERE 2023; 329:138635. [PMID: 37068612 DOI: 10.1016/j.chemosphere.2023.138635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/20/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
Herein, it was aimed to optimize the removal process of Azithromycin (Azi) from the aquatic environment via CoFe2O4/NiO nanoparticles anchored onto the microalgae-derived nitrogen-doped porous activated carbon (N-PAC), besides developing a colorimetric method for the swift monitoring of Azi in pharmaceutical products. In this study, the Spirulina platensis (Sp) was used as a biomass resource for fabricating CoFe2O4/NiO@N-PAC adsorbent. The pores of N-PAC mainly entail mesoporous structures with a mean pore diameter of 21.546 nm and total cavity volume (Vtotal) of 0.033578 cm3. g-1. The adsorption studies offered that 98.5% of Azi in aqueous media could remove by CoFe2O4/NiO@N-PAC. For the cyclic stability analysis, the adsorbent was separated magnetically and assessed at the end of five adsorption-desorption cycles with a negligible decrease in adsorption. The kinetic modeling revealed that the adsorption of Azi onto the CoFe2O4/NiO@N-PAC was well-fitted to the second-order reaction kinetics, and the highest adsorption capacity was found as 2000 mg. g-1 at 25 °C based on the Langmuir adsorption isotherm model at 0.8 g. L-1 adsorbent concentration. The Freundlich isotherm model had the best agreement with the experimental data. Thermodynamic modeling indicated the spontaneous and exothermic nature of the adsorption process. Moreover, the effects of pH, temperature, and operating time were also optimized in the colorimetric Azi detection. The blue ion-pair complexes between Azi and Coomassie Brilliant Blue G-250 (CBBG-250) reagent followed Beer's law at wavelengths of 640 nm in the concentration range of 1.0 μM to 1.0 mM with a 0.94 μM limit of detection (LOD). In addition, the selectivity of Azi determination was verified in presence of various species. Furthermore, the applicability of CBBG-250 dye for quantifying Azi was evaluated in Azi capsules as real samples, which revealed the acceptable recovery percentage (98.72-101.27%). This work paves the way for engineering advanced nanomaterials for the removal and monitoring of Azi and assures the sustainability of environmental protection and public health.
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Affiliation(s)
- Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Reza Mostafazadeh
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey
| | - Yasamin Hamidian
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey
| | - Nevin Erk
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey.
| | - Afsaneh L Sanati
- Institute of Systems and Robotics, Department of Electrical and Computer Engineering, University of Coimbra, Polo II, 3030-290, Coimbra, Portugal
| | - Ceren Karaman
- Akdeniz University, Vocational School of Technical Sciences, Department of Electricity and Energy, Antalya, 07070, Turkey.
| | - Ali Ayati
- ChemBio Cluster, ITMO University, Lomonosova Street 9, Saint Petersburg, 191002, Russia
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5
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Das B, Devi M, Deb S, Dhar SS. Boosting photocatalytic property of graphitic carbon nitride with metal complex fabrication for efficient degradation of organic pollutants. CHEMOSPHERE 2023; 323:138230. [PMID: 36863630 DOI: 10.1016/j.chemosphere.2023.138230] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The development of efficient and stable photocatalysts for degradation of refractory pollutants using minimal amounts of metal remains a major challenge. Herein, we synthesize a novel catalyst by fabrication of manganese (III) acetylacetonate complex [Mn (acac)3] over graphitic carbon nitride (GCN) denoted as 2-Mn/GCN by facile ultra-sonication method. The fabrication of the metal complex enables the migration of electrons from the conduction band of graphitic carbon nitride to Mn (acac)3, and migration of holes from valence band of Mn (acac)3 to GCN upon irradiation. Exploiting the improved surface properties, light absorption, and charge separation ensure generation of superoxide and hydroxyl radicals resulting in the rapid degradation of a variety of pollutants. The designed 2-Mn/GCN catalyst realized 99.59% rhodamine b (RhB) degradation in 55 min and 97.6% metronidazole (MTZ) degradation in 40 min with 0.7% Mn content. The influence of catalyst amount, different pH and presence of anions on the degradation kinetics was also explored to offer insights into photoactive material design.
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Affiliation(s)
- Bishal Das
- Department of Chemistry, National Institute of Technology, Silchar, Cachar, 788010, Assam, India
| | - Meghali Devi
- Department of Chemistry, National Institute of Technology, Silchar, Cachar, 788010, Assam, India
| | - Shoubhik Deb
- Department of Chemistry, National Institute of Technology, Silchar, Cachar, 788010, Assam, India
| | - Siddhartha Sankar Dhar
- Department of Chemistry, National Institute of Technology, Silchar, Cachar, 788010, Assam, India.
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6
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CdTe QDs-sensitized TiO 2 nanocomposite for magnetic-assisted photoelectrochemical immunoassay of SARS-CoV-2 nucleocapsid protein. Bioelectrochemistry 2023; 150:108358. [PMID: 36580690 PMCID: PMC9783190 DOI: 10.1016/j.bioelechem.2022.108358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/10/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
A sensitive, reliable, and cost-effective detection for SARS-CoV-2 was urgently needed due to the rapid spread of COVID-19. Here, a "signal-on" magnetic-assisted PEC immunosensor was constructed for the quantitative detection of SARS-CoV-2 nucleocapsid (N) protein based on Z-scheme heterojunction. Fe3O4@SiO2@Au was used to connect the capture antibody to act as a capture probe (Fe3O4@SiO2@Au/Ab1). It can extract target analytes selectively in complex samples and multiple electrode rinsing and assembly steps were avoided effectively. CdTe QDs sensitized TiO2 coated on the surface of SiO2 spheres to form Z-scheme heterojunction (SiO2@TiO2@CdTe QDs), which broadened the optical absorption range and inhibited the quick recombination of photogenerated electron/hole of the composite. With fascinating photoelectric conversion performance, SiO2@TiO2@CdTe QDs were utilized as a signal label, thus further realizing signal amplification. The migration mechanism of photogenerated electrons was further deduced by active material quenching experiment and electron spin resonance (ESR) measurement. The elaborated immunosensor can detect SARS-CoV-2 N protein in the linear range of 0.005-50 ng mL-1 with a low detection limit of 1.8 pg mL-1 (S/N = 3). The immunosensor displays extraordinary sensitivity, strong anti-interference, and high reproducibility in detecting SARS-CoV-2 N protein, which envisages its potential application in the clinical diagnosis of COVID-19.
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7
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Wu C, Wu K, Bai W, Li N, Gao Y, Ge L. CoPx Co-catalyst Decorated CdS Hollow Nanocubes as Efficient Photocatalysts for Hydrogen Production under Visible Light Irradiation. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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8
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The direct Z-scheme g-C6N6/WTe2 van der Waals heterojunction as photocatalyst over water splitting in the visible light: Designing strategy from first principles. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Xiong J, Li H, Zhou J, Di J. Recent progress of indium-based photocatalysts: Classification, regulation and diversified applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Facile fabrication of novel Z-scheme g-C3N4 nanosheets/ Bi7O9I3 photocatalysts with highly rapid photodegradation of RhB under visible light irradiation. J Colloid Interface Sci 2022; 616:453-464. [DOI: 10.1016/j.jcis.2022.02.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/30/2022] [Accepted: 02/06/2022] [Indexed: 01/13/2023]
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11
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Li H, Cui X, Song W, Yang Z, Li Y, Zhang P, Zheng Z, Wang Y, Li J, Ma F. Direct Z-scheme MgIn 2S 4/TiO 2heterojunction for enhanced photocathodic protection of metals under visible light. NANOTECHNOLOGY 2022; 33:165703. [PMID: 34996059 DOI: 10.1088/1361-6528/ac493c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
To improve the photocathodic protection performance of traditional TiO2photoanodes for metals, constructing a Z-scheme heterojunction is one of the most promising and creative strategies. Herein, we fabricated a novel Z-scheme MgIn2S4nanosheets/TiO2nanotube nanocomposite through anodization and hydrothermal method. The optimized Z-scheme MgIn2S4/TiO2nanocomposites exhibited stronger visible light absorption, higher separation efficiency of photoelectrons and photocathodic protection performances in comparison to pure TiO2. The theoretical analysis and experimental results show that the Z-scheme heterojunction and oxygen vacancies jointly improved the separation efficiency of photogenerated electron-hole pairs and visible light absorption capacity, thereby improving the photoelectric conversion performance of the MgIn2S4/TiO2nanocomposites. Furthermore, the influence of the precursor solution concentration on the photocathodic protection performances of the composites was investigated. As a result, when the concentration of magnesium source in the precursor solution was 0.06 mmol, the prepared MgIn2S4/TiO2-0.06 displayed the best photocathodic protection performance. In addition, the hydroxyl radicals (·OH) generated in the electron spin resonance (ESR) experiment verified the Z-scheme heterojunction mechanism of the MgIn2S4/TiO2composite, and also demonstrated the excellent redox performance of the composite. This work provides valuable reference for the construction of high-performance Z-scheme heterojunctions for photocathode protection of metals.
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Affiliation(s)
- Hong Li
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Xingqiang Cui
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Weizhe Song
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Zhanyuan Yang
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Yanhui Li
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Pengfei Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Zongmin Zheng
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- National Engineering Research Center for Intelligent Electrical Vehicle Power System, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Yuqi Wang
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
- State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Junru Li
- College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Fubin Ma
- Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, People's Republic of China
- Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, People's Republic of China
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12
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Nasir Z, Ali A, Alam MF, Shoeb M, Nusrat Jahan S. Immobilization of GOx Enzyme on SiO 2-Coated Ni-Co Ferrite Nanocomposites as Magnetic Support and Their Antimicrobial and Photocatalytic Activities. ACS OMEGA 2021; 6:33554-33567. [PMID: 34926904 PMCID: PMC8675013 DOI: 10.1021/acsomega.1c04360] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/18/2021] [Indexed: 05/11/2023]
Abstract
The present study used a sol-gel auto-combustion approach to make silica (SiO2)-coated Ni-Co ferrite nanocomposites that would be used as a platform for enzyme immobilization. Using glutaraldehyde as a coupling agent, glucose oxidase (GOx) was covalently immobilized on this magnetic substrate. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), high-resolution transmission electron microscopy (HRTEM), and fourier transform infrared spectroscopy (FTIR) was used to determine the structural analysis and morphology of Ni-Co ferrite/SiO2 nanocomposites. FTIR spectra confirmed the binding of GOx to Ni-Co ferrite/SiO2 nanocomposites, with a loading efficiency of around 85%. At alkaline pH and higher temperature, the immobilized GOx enzyme exhibited increased catalytic activity. After 10 times of reuses, it still had 69% catalytic activity. Overall, the immobilized GOx displayed higher operational stability than the free enzyme under severe circumstances and was easily recovered by magnetic separation. With increased doping concentration of the nanocomposites, the photocatalytic activity was assessed using a degradation process in the presence of methylene blue dye under UV light irradiation, which revealed that the surface area of the nanocomposites with increased doping concentration played a significant role in improving photocatalytic activity. The antibacterial activity of Ni-Co ferrite/SiO2 nanocomposites was assessed using the agar well diffusion method against Escherichia coli, a gram-negative bacteria (ATCC 25922). Consequently, it was revealed that doping of Ni2+ and Co2+ in Fe2O4/SiO2 nanocomposites at varied concentrations improved their antibacterial properties.
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Affiliation(s)
- Zeba Nasir
- Department
of Chemistry, Aligarh Muslim University, Aligarh, UP 202 002, India
| | - Abad Ali
- Department
of Chemistry, Aligarh Muslim University, Aligarh, UP 202 002, India
| | - Md. Fazle Alam
- Interdisciplinary
Biotechnology Unit, Aligarh Muslim University, Aligarh, UP 202 002, India
- Key
Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, People’s Republic
of China
| | - Mohd Shoeb
- Department
of Applied Chemistry, Z.H. College of Engg. & Tech., Aligarh Muslim University, Aligarh, UP 202
002, India
| | - Shaikh Nusrat Jahan
- Department
of Zoology, G.M. Momin Women’s College, University of Mumbai, Bhiwandi, Mumbai 421302, India
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13
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Inactivation of pathogens by visible light photocatalysis with nitrogen-doped TiO2 and tourmaline-nitrogen co-doped TiO2. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118979] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Li T, Zhang P, He H, Wang Z, Tu X, Dionysiou DD. Highly efficient photoelectrocatalytic degradation of cefotaxime sodium on the MoSe2/TiO2 nanotubes photoanode with abundant oxygen vacancies. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122455] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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15
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Solid-State Synthesis of Direct Z-Scheme Cu2O/WO3 Nanocomposites with Enhanced Visible-Light Photocatalytic Performance. Catalysts 2021. [DOI: 10.3390/catal11020293] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this paper, we report the preparation of visible-light active direct Z-scheme Cu2O/WO3 nanocomposite photocatalyst by a solid-state reaction avoiding the otherwise inevitable formation of CuWO4 phase in wet syntheses. Structure, morphology, and thermal and optical properties of prepared WO3 nanoplatelets decorated by Cu2O were investigated by XRD, Raman spectroscopy, SEM/TEM, combined thermogravimetric (TG)/differential scanning calorimetry (DSC) analysis, and UV–VIS spectroscopy. The photocatalytic performance of the prepared samples under UV and visible light was studied through monitoring discoloration of methylene blue under illumination by selected wavelengths, allowing for the distinguishing between the contributions of the two semiconductive components. Experimental results showed that the decoration of WO3 nanoplates by Cu2O nanoparticles led to an improvement in photocatalytic performance, regardless of used LED (Light-Emitting Diode) wavelength, even at low concentrations. By using scavengers selectively blocking reactive species involved in the discoloration reaction, we determined that the Cu2O/WO3 nanocomposite exhibited the characteristics of direct Z-scheme-type photocatalyst.
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16
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Xing C, Liu Y, Zhang Y, Wang X, Guardia P, Yao L, Han X, Zhang T, Arbiol J, Soler L, Chen Y, Sivula K, Guijarro N, Cabot A, Llorca J. A Direct Z-Scheme for the Photocatalytic Hydrogen Production from a Water Ethanol Mixture on CoTiO 3/TiO 2 Heterostructures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:449-457. [PMID: 33386057 DOI: 10.1021/acsami.0c17004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photocatalytic H2 evolution from ethanol dehydrogenation is a convenient strategy to store solar energy in a highly valuable fuel with potential zero net CO2 balance. Herein, we report on the synthesis of CoTiO3/TiO2 composite catalysts with controlled amounts of highly distributed CoTiO3 nanodomains for photocatalytic ethanol dehydrogenation. We demonstrate these materials to provide outstanding hydrogen evolution rates under UV and visible illumination. The origin of this enhanced activity is extensively analyzed. In contrast to previous assumptions, UV-vis absorption spectra and ultraviolet photoelectron spectroscopy (UPS) prove CoTiO3/TiO2 heterostructures to have a type II band alignment, with the conduction band minimum of CoTiO3 below the H2/H+ energy level. Additional steady-state photoluminescence (PL) spectra, time-resolved PL spectra (TRPLS), and electrochemical characterization prove such heterostructures to result in enlarged lifetimes of the photogenerated charge carriers. These experimental evidence point toward a direct Z-scheme as the mechanism enabling the high photocatalytic activity of CoTiO3/TiO2 composites toward ethanol dehydrogenation. In addition, we probe small changes of temperature to strongly modify the photocatalytic activity of the materials tested, which could be used to further promote performance in a solar thermophotocatalytic reactor.
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Affiliation(s)
- Congcong Xing
- Catalonia Institute for Energy Research (IREC), Sant Adriá de Besós 08930, Barcelona, Spain
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain
| | - Yongpeng Liu
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Yu Zhang
- Catalonia Institute for Energy Research (IREC), Sant Adriá de Besós 08930, Barcelona, Spain
| | - Xiang Wang
- Catalonia Institute for Energy Research (IREC), Sant Adriá de Besós 08930, Barcelona, Spain
| | - Pablo Guardia
- Catalonia Institute for Energy Research (IREC), Sant Adriá de Besós 08930, Barcelona, Spain
| | - Liang Yao
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Xu Han
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Ting Zhang
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- ICREA, Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Lluís Soler
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain
| | - Yufen Chen
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain
| | - Kevin Sivula
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Néstor Guijarro
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Andreu Cabot
- Catalonia Institute for Energy Research (IREC), Sant Adriá de Besós 08930, Barcelona, Spain
- ICREA, Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Jordi Llorca
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, 08019 Barcelona, Spain
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Panja S, Bag BG. Flower- and Grass-like Self-Assemblies of an Oleanane-Type Triterpenoid Erythrodiol: Application in the Removal of Toxic Dye from Water. ACS OMEGA 2020; 5:30488-30494. [PMID: 33283097 PMCID: PMC7711690 DOI: 10.1021/acsomega.0c04291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/28/2020] [Indexed: 05/10/2023]
Abstract
Erythrodiol (3β-olean-12-ene-3, 28-diol) (C30H50O2) 1 is a nanosized oleanane-type fused 6-6-6-6-6 pentacyclic triterpeneoid extractable from the dried leaves of olive (Olea europia). One step reduction of oleanolic acid extracted from Lantana camara also yields the same compound. The triterpenoid has one secondary -OH group attached at C3 of the "A" ring and one primary -OH group at C28 present at the junction of the "D" and "E" rings. Here, we report the spontaneous self-assembly of erythrodiol in different neat organic liquids and aqueous-organic liquid mixtures. The nanosized dihydroxy triterpenoid having an oleanane-type lipophilic rigid skeleton self-assembled in liquids, yielding nanosized fibrils, microsized flowers, and grass-like architectures via formation of densely assembled fibrils and petals or 2D sheets. The microstructures of the self-assemblies have been characterized by different techniques like optical microscopy, electron microscopy, atomic force microscopy, FTIR, and wide angle X-ray diffraction studies. The porous self-assemblies having a large surface area obtained from 1 were capable of adsorbing toxic fluorophores like rhodamine-B, rhodamine-6G, methylene blue, and crystal violet (CV). Moreover, removal of the aforementioned toxic pigments has also been demonstrated from their aqueous solutions by using UV-visible spectrophotometry and epifluorescence microscopy.
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Affiliation(s)
- Saikat
Kumar Panja
- Department of Chemistry and
Chemical Technology, Vidyasagar University, Midnapore, West Bengal 721102, India
| | - Braja Gopal Bag
- Department of Chemistry and
Chemical Technology, Vidyasagar University, Midnapore, West Bengal 721102, India
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18
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Magnetically retrievable Bi2WO6/Fe3O4/Na-MMT composite: fabrication and photocatalytic activity. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Sun D, Shi JW, Ma D, Zou Y, Sun G, Mao S, Sun L, Cheng Y. CdS/ZnS/ZnO ternary heterostructure nanofibers fabricated by electrospinning for excellent photocatalytic hydrogen evolution without co-catalyst. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63576-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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20
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Warshagha MZA, Muneer M. Synthesis of Ph-Modified Graphitic Carbon Nitride for Degradation of Different Chromophoric Organic Pollutants in Aqueous Suspension under Visible Light. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9719-9727. [PMID: 32787064 DOI: 10.1021/acs.langmuir.0c01055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Recently, the preparation of visible-light-sensitive catalysts for the decomposition of organics has been of great interest. Herein, we report a single-step facile co-polymerization via the calcination process to produce a phenyl-modified-g-C3N4 semiconducting material. The product was characterized using standard analytical techniques. The UV/vis-DRS study indicates a shift of 23 nm toward higher wavelengths, whereas transmission electron microscopy analysis indicates the presence of phenyl group incorporation. The H1 NMR of Ph-g-C3N4 showed a shift of aromatic proton toward down-field as compared with benzamide protons. The prepared products showed efficient performance for the removal of a dye and a drug derivative in water with light and air. The marked activity might be due to efficient light absorption and photoseparated (e--h+) pair. The work embodied represents the construction of catalysts for the removal of organics in water with light.
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Affiliation(s)
| | - Mohammad Muneer
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
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21
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Lee HK, Lee SW. Formation of hollow porous TiO 2 nanospheres via the encapsulation of CO 2 nanobubbles for high-performance adsorption and photocatalysis. Dalton Trans 2020; 49:8274-8281. [PMID: 32510537 DOI: 10.1039/d0dt01228a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous TiO2 structures have been of great interest in various photocatalytic applications over the past decade. However, the synthetic methods reported so far in the literature are complex and time consuming. This study presents a simple one-pot fabrication method of hollow porous TiO2 nanospheres using a sol-gel process involving CO2 generation in aqueous solution. The CO2 nanobubbles produced in the reaction act as a template for the crystal growth of TiO2 resulting in highly porous hollow nanospheres. The unique nanocrystal structure with a hollow nanosphere centre surrounded by an outer shell of prickle-like porous nanocrystals was observed. The prepared hollow porous TiO2 nanospheres exhibited excellent adsorption properties as demonstrated by the adsorption measurements and dynamic extraction of methylene blue in aqueous solution. Furthermore, the hollow porous TiO2 nanospheres hydrothermally treated at 180 °C exhibit 3.2 times higher photocatalytic performance in the decomposition of methylene blue than the commercial P25 TiO2. The idea of this work provides a new direction for facile green synthesis routes of various metal oxides with cavities, channels or crevices for various technological applications.
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Affiliation(s)
- Hack-Keun Lee
- Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 808-0135, Japan.
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22
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Liu D, Zhang S, Wang J, Peng T, Li R. Direct Z-Scheme 2D/2D Photocatalyst Based on Ultrathin g-C3N4 and WO3 Nanosheets for Efficient Visible-Light-Driven H2 Generation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27913-27923. [PMID: 31305066 DOI: 10.1021/acsami.9b08329] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ultrathin two-dimensional (2D) nanomaterials can not only boost the interfacial charge migration and separation but also provide abundant reactive sites for the photocatalytic H2 generation. Herein, a kind of direct Z-scheme 2D/2D hybrid nanomaterial is fabricated by post-annealing atomically ultrathin Pt-loaded g-C3N4 nanosheets (Pt-CN NSs) with a thickness of ∼4.0 nm and hydrogen-treated WO3 nanosheets (HWO NSs) with a thickness of ∼2.6 nm. The strong affinity existing between the two types of nanosheets with few-layer stacking results in the formation of atomically ultrathin 2D/2D hybrid nanomaterials (Pt-CN/HWO) with intimate interfacial contact in which the strong electronic interaction and efficient charge separation lead to a direct Z-scheme electron flowing from HWO NSs to CN NSs and then to the Pt cocatalyst for catalyzing the H2 generation reaction. After optimizing the component ratio, the corresponding Pt-CN/HWO hybrid nanomaterial delivers a significantly boosted photocatalytic H2 generation activity, up to 6.2 times as high as that of the Pt-CN/WO composite containing Pt-CN NSs and WO3 nanoplates (WO NPs) without hydrogen treatment. This result reveals that the atomically ultrathin nanosheets in the 2D/2D hybrid nanomaterials can not only deliver strong electronic interaction to promote the Z-scheme mechanism for maintaining the high reduction ability of g-C3N4 and high oxidation ability of WO3 but also alleviate the charge recombination, therefore resulting in the excellent photocatalytic H2 generation performance.
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Affiliation(s)
- Dong Liu
- College of Chemistry and Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , PR China
- Research Institute of Wuhan University in Shenzhen , Wuhan University , Shenzhen 518057 , PR China
| | - Shuai Zhang
- College of Chemistry and Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , PR China
- Research Institute of Wuhan University in Shenzhen , Wuhan University , Shenzhen 518057 , PR China
| | - Jinming Wang
- College of Chemistry and Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , PR China
- Research Institute of Wuhan University in Shenzhen , Wuhan University , Shenzhen 518057 , PR China
| | - Tianyou Peng
- College of Chemistry and Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , PR China
- Research Institute of Wuhan University in Shenzhen , Wuhan University , Shenzhen 518057 , PR China
| | - Renjie Li
- College of Chemistry and Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials , Wuhan University , Wuhan 430072 , PR China
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23
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Zhang S, Wang J, Chen S, Li R, Peng T. Construction of Ag 2S/WO 3 Direct Z-Scheme Photocatalyst for Enhanced Charge Separation Efficiency and H 2 Generation Activity. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02335] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shuai Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
- Research Institute of Wuhan University in Shenzhen, Wuhan University, Shenzhen 518057, People’s Republic of China
| | - Jinming Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
- Research Institute of Wuhan University in Shenzhen, Wuhan University, Shenzhen 518057, People’s Republic of China
| | - Shengtao Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Renjie Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Tianyou Peng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People’s Republic of China
- Research Institute of Wuhan University in Shenzhen, Wuhan University, Shenzhen 518057, People’s Republic of China
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Swain G, Sultana S, Parida K. One-Pot-Architectured Au-Nanodot-Promoted MoS2/ZnIn2S4: A Novel p–n Heterojunction Photocatalyst for Enhanced Hydrogen Production and Phenol Degradation. Inorg Chem 2019; 58:9941-9955. [DOI: 10.1021/acs.inorgchem.9b01105] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gayatri Swain
- Centre for Nano Science and Nanotechnology, Siksha O Anusandhan (Deemed To be University), Bhubaneswar 751030, Odisha, India
| | - Sabiha Sultana
- Centre for Nano Science and Nanotechnology, Siksha O Anusandhan (Deemed To be University), Bhubaneswar 751030, Odisha, India
| | - Kulamani Parida
- Centre for Nano Science and Nanotechnology, Siksha O Anusandhan (Deemed To be University), Bhubaneswar 751030, Odisha, India
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25
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Ouasfi N, Zbair M, Bouzikri S, Anfar Z, Bensitel M, Ait Ahsaine H, Sabbar E, Khamliche L. Selected pharmaceuticals removal using algae derived porous carbon: experimental, modeling and DFT theoretical insights. RSC Adv 2019; 9:9792-9808. [PMID: 35520732 PMCID: PMC9062196 DOI: 10.1039/c9ra01086f] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 03/14/2019] [Indexed: 11/28/2022] Open
Abstract
Porous carbon from Laminaria digitata algae activated using NaOH (PCLD@NaOH) was prepared by a chemical activation approach and has been tested for the adsorption of ketoprofen and aspirin molecules. The prepared PCLD@NaOH was characterized using XPS, FTIR, Raman, N2-physisorption, SEM, acidic/basic character (Boehm), and pHPZC. The batch adsorption of ketoprofen and aspirin was investigated under different parameters. The adsorption kinetics on PCLD@NaOH were well described by the Avrami-fractional kinetic model and the equilibrium data by Liu isotherm model. The adsorption capacity of aspirin (970.88 mg g-1 at 25 °C) was higher than ketoprofen (443.45 mg g-1 at 25 °C). The thermodynamic values indicate that the adsorption of ketoprofen and aspirin is exothermic and spontaneous. These results were in good agreement with DFT calculation that shows that the aspirin molecule presents high reactivity, electrophilicity, and softness compared to the ketoprofen molecule. Finally, the response surface methodology was used to optimize the removal efficiency of ketoprofen and aspirin.
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Affiliation(s)
- N Ouasfi
- Laboratory of Organic Chemistry, Bioorganic and Environment, Chemistry Department, Faculty of Science, University Chouaib Doukkali El Jadida Morocco
- Laboratory of Physico-Chemistry of Materials (LPCM), ChemistryDepartment, Faculty of Sciences, University of Chouaïb Doukkali El Jadida Morocco
| | - M Zbair
- Laboratory of Catalysis and Corrosion of Materials (LCCM), Department of Chemistry, Faculty of Sciences of El Jadida, University of Chouaïb Doukkali BP 20 24000 El Jadida Morocco
| | - S Bouzikri
- Laboratory of Organic Chemistry, Bioorganic and Environment, Chemistry Department, Faculty of Science, University Chouaib Doukkali El Jadida Morocco
| | - Z Anfar
- Laboratoire Matériaux et Environnement LME, Faculté des Sciences, Université Ibn Zohr BP 8106, Cité Dakhla Agadir Morocco
| | - M Bensitel
- Laboratory of Catalysis and Corrosion of Materials (LCCM), Department of Chemistry, Faculty of Sciences of El Jadida, University of Chouaïb Doukkali BP 20 24000 El Jadida Morocco
| | - H Ait Ahsaine
- Laboratoire Matériaux et Environnement LME, Faculté des Sciences, Université Ibn Zohr BP 8106, Cité Dakhla Agadir Morocco
| | - E Sabbar
- Laboratory of Physico-Chemistry of Materials (LPCM), ChemistryDepartment, Faculty of Sciences, University of Chouaïb Doukkali El Jadida Morocco
| | - L Khamliche
- Laboratory of Organic Chemistry, Bioorganic and Environment, Chemistry Department, Faculty of Science, University Chouaib Doukkali El Jadida Morocco
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26
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Interfacial engineering of graphitic carbon nitride (g-C3N4)-based metal sulfide heterojunction photocatalysts for energy conversion: A review. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63293-6] [Citation(s) in RCA: 334] [Impact Index Per Article: 66.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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27
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28
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Di T, Xu Q, Ho W, Tang H, Xiang Q, Yu J. Review on Metal Sulphide‐based Z‐scheme Photocatalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201802024] [Citation(s) in RCA: 314] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tingmin Di
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
| | - Quanlong Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
| | - WingKei Ho
- Department of Science and Environmental Studies and State Key Laboratory in Marine PollutionThe Education University of Hong Kong Tai Po, N. T. Hong Kong P. R. China
| | - Hua Tang
- School of Materials Science and EngineeringJiangsu University Zhenjiang 212013 P. R. China
| | - Quanjun Xiang
- State Key Laboratory of Electronic Thin Film and Integrated DevicesUniversity of Electronic Science and Technology of China Chengdu 610054 P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P. R. China
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Guelfi DRV, Gozzi F, Sirés I, Brillas E, Machulek A, de Oliveira SC. Antituberculosis drug isoniazid degraded by electro-Fenton and photoelectro-Fenton processes using a boron-doped diamond anode and a carbon-PTFE air-diffusion cathode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:4415-4425. [PMID: 29700752 DOI: 10.1007/s11356-018-2024-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/12/2018] [Indexed: 06/08/2023]
Abstract
Solutions with 0.65 mM of the antituberculosis drug isoniazid (INH) in 0.050 M Na2SO4 at pH 3.0 were treated by electro-Fenton (EF) and UVA photoelectro-Fenton (PEF) processes using a cell with a BDD anode and a carbon-PTFE air-diffusion cathode. The influence of current density on degradation, mineralization rate, and current efficiency has been thoroughly evaluated in EF. The effect of the metallic catalyst (Fe2+ or Fe3+) and the formation of products like short-chain linear aliphatic carboxylic acids were assessed in PEF. Two consecutive pseudo-first-order kinetic regions were found using Fe2+ as catalyst. In the first region, at short time, the drug was rapidly oxidized by ●OH, whereas in the second region, at longer time, a resulting Fe(III)-INH complex was much more slowly removed by oxidants. INH disappeared completely at 300 min by EF, attaining 88 and 94% mineralization at 66.6 and 100 mA cm-2, respectively. Isonicotinamide and its hydroxylated derivative were identified as aromatic products of INH by GC-MS and oxalic, oxamic, and formic acids were quantified by ion-exclusion HPLC. The PEF treatment of a real wastewater polluted with the drug led to slower INH and TOC abatements because of the parallel destruction of its natural organic matter content.
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Affiliation(s)
- Diego R V Guelfi
- Instituto de Química (INQUI), Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, 1555, Caixa postal 549, Campo Grande, MS, 79070-900, Brazil
| | - Fábio Gozzi
- Instituto de Química (INQUI), Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, 1555, Caixa postal 549, Campo Grande, MS, 79070-900, Brazil
| | - Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, c/Martí i Franquès 1-11, 08028, Barcelona, Spain.
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de Química, Universitat de Barcelona, c/Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Amílcar Machulek
- Instituto de Química (INQUI), Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, 1555, Caixa postal 549, Campo Grande, MS, 79070-900, Brazil
| | - Silvio César de Oliveira
- Instituto de Química (INQUI), Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, 1555, Caixa postal 549, Campo Grande, MS, 79070-900, Brazil.
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Devi M, Das B, Barbhuiya MH, Bhuyan B, Dhar SS, Vadivel S. Fabrication of nanostructured NiO/WO3with graphitic carbon nitride for visible light driven photocatalytic hydroxylation of benzene and metronidazole degradation. NEW J CHEM 2019. [DOI: 10.1039/c9nj02904d] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fabrication of a novel NiO/WO3nanohybrid modified graphitic carbon nitride nanosheets with enhanced photocatalytic activity towards photocatalytic hydroxylation of benzene and degradation of a pharmaceutical waste metronidazole.
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Affiliation(s)
- Meghali Devi
- Department of Chemistry
- National Institute of Technology
- Cachar
- India
| | - Bishal Das
- Department of Chemistry
- National Institute of Technology
- Cachar
- India
| | | | - Bishal Bhuyan
- Department of Chemistry
- National Institute of Technology
- Cachar
- India
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31
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Fu CF, Zhang R, Luo Q, Li X, Yang J. Construction of direct Z-Scheme photocatalysts for overall water splitting using two-dimensional van der waals heterojunctions of metal dichalcogenides. J Comput Chem 2018; 40:980-987. [PMID: 30431652 DOI: 10.1002/jcc.25540] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/04/2018] [Accepted: 07/03/2018] [Indexed: 01/17/2023]
Abstract
The direct Z-scheme system constructed by two-dimensional (2D) materials is an efficient route for hydrogen production from photocatalytic water splitting. In the present work, the 2D van der Waals (vdW) heterojunctions of MoSe2 /SnS2 , MoSe2 /SnSe2 , MoSe2 /CrS2 , MoTe2 /SnS2 , MoTe2 /SnSe2 , and MoTe2 /CrS2 are proposed to be promising candidates for direct Z-scheme photocatalysts and verified by first principles calculations. Perpendicular electric field is induced in these 2D vdW heterojunctions, which enhances the efficiency of solar energy utilization. Replacing MoSe2 with MoTe2 not only facilitates the interlayer carrier migration, but also improves the optical absorption properties for these heterojunctions. Excitingly, the 2D vdW MoTe2 /CrS2 heterojunction is demonstrated, for the first time, to be 2D near-infrared-light driven photocatalyst for direct Z-scheme water splitting. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Cen-Feng Fu
- Hefei National Laboratory of Physical Science at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Anhui, 230026, China
| | - Ruiqi Zhang
- Hefei National Laboratory of Physical Science at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Anhui, 230026, China
| | - Qiquan Luo
- Hefei National Laboratory of Physical Science at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Anhui, 230026, China
| | - Xingxing Li
- Hefei National Laboratory of Physical Science at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Anhui, 230026, China
| | - Jinlong Yang
- Hefei National Laboratory of Physical Science at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Anhui, 230026, China
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Swain G, Sultana S, Moma J, Parida K. Fabrication of Hierarchical Two-Dimensional MoS2 Nanoflowers Decorated upon Cubic CaIn2S4 Microflowers: Facile Approach To Construct Novel Metal-Free p–n Heterojunction Semiconductors with Superior Charge Separation Efficiency. Inorg Chem 2018; 57:10059-10071. [DOI: 10.1021/acs.inorgchem.8b01221] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gayatri Swain
- Centre for Nano Science and Nanotechnology, Siksha O Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | - Sabiha Sultana
- Centre for Nano Science and Nanotechnology, Siksha O Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | - John Moma
- School of Chemistry, University of the Witwatersrand, Jorissen Street, Braamfontein,
Private Bag 3, PO WITS 2050, Johannesburg, South Africa
| | - Kulamani Parida
- Centre for Nano Science and Nanotechnology, Siksha O Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
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Stroyuk O, Raevskaya A, Gaponik N. Solar light harvesting with multinary metal chalcogenide nanocrystals. Chem Soc Rev 2018; 47:5354-5422. [PMID: 29799031 DOI: 10.1039/c8cs00029h] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The paper reviews the state of the art in the synthesis of multinary (ternary, quaternary and more complex) metal chalcogenide nanocrystals (NCs) and their applications as a light absorbing or an auxiliary component of light-harvesting systems. This includes solid-state and liquid-junction solar cells and photocatalytic/photoelectrochemical systems designed for the conversion of solar light into the electric current or the accumulation of solar energy in the form of products of various chemical reactions. The review discusses general aspects of the light absorption and photophysical properties of multinary metal chalcogenide NCs, the modern state of the synthetic strategies applied to produce the multinary metal chalcogenide NCs and related nanoheterostructures, and recent achievements in the metal chalcogenide NC-based solar cells and the photocatalytic/photoelectrochemical systems. The review is concluded by an outlook with a critical discussion of the most promising ways and challenging aspects of further progress in the metal chalcogenide NC-based solar photovoltaics and photochemistry.
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Affiliation(s)
- Oleksandr Stroyuk
- L.V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 03028 Kyiv, Ukraine.
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Xu S, Dai J, Yang J, You J, Hao J. Facile Synthesis of Novel CaIn₂S₄/ZnIn₂S₄ Composites with Efficient Performance for Photocatalytic Reduction of Cr(VI) under Simulated Sunlight Irradiation. NANOMATERIALS 2018; 8:nano8070472. [PMID: 29954127 PMCID: PMC6071186 DOI: 10.3390/nano8070472] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/22/2018] [Accepted: 06/25/2018] [Indexed: 12/21/2022]
Abstract
A series of novel and efficient heterostructured composites CaIn2S4/ZnIn2S4 have been synthesized using a facile hydrothermal method. XRD patterns indicate the as-prepared catalysts are two-phase composites of cubic phase CaIn2S4 and hexagonal phase ZnIn2S4. FESEM (field emission scanning electron microscope) images display that the synthesized composites are composed of flower-like microspheres with wide diameter distribution. UV–Vis diffuse reflectance spectra (DRS) show that the optical absorption edges of the CaIn2S4/ZnIn2S4 composites shift toward longer wavelengths with the increase of the CaIn2S4 component. The photocatalytic activities of the as-synthesized composites are investigated by using the aqueous-phase Cr(VI) reduction under simulated sunlight irradiation. This is the first report on the application of the CaIn2S4/ZnIn2S4 composites as stable and efficient photocatalysts for the Cr(VI) reduction. The fabricated CaIn2S4/ZnIn2S4 composites possess higher photocatalytic performance in comparison with pristine CaIn2S4 or ZnIn2S4. The CaIn2S4/ZnIn2S4 composite with a CaIn2S4 molar content of 30% exhibits the optimum photocatalytic activity. The primary reason for the significantly enhanced photoreduction activity is proved to be the substantially improved separation efficiency of photogenerated electrons/holes caused by forming the CaIn2S4/ZnIn2S4 heterostructured composites. The efficient charge separation can be evidenced by steady-state photoluminescence spectra (PLs) and transient photocurrent response. Based on the charge transfer between CaIn2S4 and ZnIn2S4, an enhancement mechanism of photocatalytic activity and stability for the Cr(VI) reduction is proposed.
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Affiliation(s)
- Siyu Xu
- Institute of Chemical Safety, School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Jun Dai
- Institute of Chemical Safety, School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
- The Collaborative Innovation Center of Coal Safety Production of Henan, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Juan Yang
- Institute of Chemical Safety, School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
- The Collaborative Innovation Center of Coal Safety Production of Henan, Henan Polytechnic University, Jiaozuo 454003, China.
- Institute of Applied Chemistry, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Jun You
- Institute of Applied Chemistry, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Jingyi Hao
- Institute of Applied Chemistry, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
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Ma D, Shi JW, Zou Y, Fan Z, Shi J, Cheng L, Sun D, Wang Z, Niu C. Multiple carrier-transfer pathways in a flower-like In 2S 3/CdIn 2S 4/In 2O 3 ternary heterostructure for enhanced photocatalytic hydrogen production. NANOSCALE 2018; 10:7860-7870. [PMID: 29664490 DOI: 10.1039/c8nr00170g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A novel flower-like In2S3/CdIn2S4/In2O3 (ICS) ternary heterostructure (HS) is rationally constructed for the first time by a series of carefully designed procedures. In2O3 nanoflakes are the main constituent units which assemble into a flower-like skeleton structure, and CdIn2S4 nanoparticles are in situ generated on the surface of In2O3 nanoflakes through the transformation of CdS quantum dots (QDs) while In2S3 nanoparticles are in situ produced at the region between CdIn2S4 nanoparticles and In2O3 nanoflakes resulting from a synchronous sulfuration procedure. As expected, the rationally designed ICS ternary HSs display significantly enhanced photocatalytic H2 production, especially ICS5 (sulfurized for 5 h) with the highest H2 evolution rate of 20.04 μmol h-1 (10 mg catalyst is used for photocatalytic reaction), which is 26.7 times and 2.6 times higher than that of pure In2O3 (0.75 μmol h-1) and In2S3/In2O3 binary HS (7.88 μmol h-1), respectively. The enhanced photocatalytic activity can be attributed to the multiple interfaces formed in the ICS HSs, including the CdIn2S4-In2O3 interface, the In2S3-In2O3 interface, and the CdIn2S4-In2O3-In2S3 interface, which construct multiple pathways for the transfer of photogenerated charge carriers, effectively promoting the photocatalytic hydrogen production.
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Affiliation(s)
- Dandan Ma
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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36
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Song T, Zhang P, Wang T, Ali A, Zeng H. Constructing a novel strategy for controllable synthesis of corrosion resistant Ti 3+ self-doped titanium-silicon materials with efficient hydrogen evolution activity from simulated seawater. NANOSCALE 2018; 10:2275-2284. [PMID: 29260813 DOI: 10.1039/c7nr07095k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Exploiting solar power for hydrogen production from seawater is a great challenge owing to the corrosive properties of seawater and inadequate visible-light conversion capabilities. Here we report an uncomplicated post-processing method to construct Ti3+ self-doped titanium-silicon material with corrosion resistance. This is a new experimental method to regulate the electrical, optical, and photocatalytic performances of titanium-containing photocatalysts in a controlled way. Moreover, we demonstrate that Ti-O-Si materials with different calcination temperatures can serve as a highly efficient and convenient catalyst for photogeneration of hydrogen from water and simulated seawater. Consequently, the optimized Ti-O-Si (400) sample exhibits impressive enhancement in the photocatalytic hydrogen evolution performance, by nearly 10.0 and 43.1 times compared with TiO2 nanoparticles in water and simulated seawater. The Ti-O-Si (400) with substantial Ti3+ and oxygen vacancies exhibits an excellent photocatalytic H2 production performance due to the improved separation and transmission of the photogenerated electron-hole, the extended visible light response, and corrosion resistance. Our work opens a new door to engineering the intrinsic properties of the titanium-containing materials.
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Affiliation(s)
- Ting Song
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China.
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37
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Hosseini-Sarvari M, Jafari F, Mohajeri A, Hassani N. Cu2O/TiO2 nanoparticles as visible light photocatalysts concerning C(sp2)–P bond formation. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00822a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel and efficient method has been developed for the construction of an aromatic-phosphorus (Ar-P) bond under visible light irradiation using Cu2O/TiO2 nanoparticles as inexpensive and available photocatalysts.
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Affiliation(s)
| | - Fattaneh Jafari
- Department of Chemistry
- Faculty of Science
- Shiraz University
- Shiraz
- Iran
| | - Afshan Mohajeri
- Department of Chemistry
- Faculty of Science
- Shiraz University
- Shiraz
- Iran
| | - Nasim Hassani
- Department of Chemistry
- Faculty of Science
- Shiraz University
- Shiraz
- Iran
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38
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Wan S, Ou M, Zhong Q, Zhang S. Z-scheme CaIn2S4/Ag3PO4 nanocomposite with superior photocatalytic NO removal performance: fabrication, characterization and mechanistic study. NEW J CHEM 2018. [DOI: 10.1039/c7nj03588h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Z-scheme CaIn2S4/Ag3PO4 photocatalyst with superior photocatalytic NO removal performance was fabricated and characterized, and mechanistic analysis was also carried out.
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Affiliation(s)
- Shipeng Wan
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Nanjing AIREP Environmental Protection Technology Co., Ltd
| | - Man Ou
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Nanjing AIREP Environmental Protection Technology Co., Ltd
| | - Qin Zhong
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Nanjing AIREP Environmental Protection Technology Co., Ltd
| | - Shule Zhang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
- Nanjing AIREP Environmental Protection Technology Co., Ltd
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Qi K, Cheng B, Yu J, Ho W. A review on TiO 2 -based Z-scheme photocatalysts. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62962-0] [Citation(s) in RCA: 338] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Liu H, Zhai H, Hu C, Yang J, Liu Z. Hydrothermal synthesis of In 2O 3 nanoparticles hybrid twins hexagonal disk ZnO heterostructures for enhanced photocatalytic activities and stability. NANOSCALE RESEARCH LETTERS 2017; 12:466. [PMID: 28747043 PMCID: PMC5526824 DOI: 10.1186/s11671-017-2233-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/16/2017] [Indexed: 05/27/2023]
Abstract
In2O3 nanoparticles hybrid twins hexagonal disk (THD) ZnO with different ratios were fabricated by a hydrothermal method. The as-obtained ZnO/In2O3 composites are constituted by hexagonal disks ZnO with diameters of about 1 μm and In2O3 nanoparticles with sizes of about 20-50 nm. With the increase of In2O3 content in ZnO/In2O3 composites, the absorption band edges of samples shifted from UV to visible light region. Compared with pure ZnO, the ZnO/In2O3 composites show enhanced photocatalytic activities for degradation of methyl orange (MO) and 4-nitrophenol (4-NP) under solar light irradiation. Due to suitable alignment of their energy band-gap structure of the In2O3 and ZnO, the formation of type п heterostructure can enhance efficient separation of photo-generate electro-hole pairs and provides convenient carrier transfer paths.
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Affiliation(s)
- Hairui Liu
- College of Physics and Materials science, Henan Normal University, Xinxiang, 453007, People's Republic of China.
- Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, 453007, People's Republic of China.
| | - Haifa Zhai
- College of Physics and Materials science, Henan Normal University, Xinxiang, 453007, People's Republic of China
- Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, 453007, People's Republic of China
| | - Chunjie Hu
- College of Physics and Materials science, Henan Normal University, Xinxiang, 453007, People's Republic of China
- Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, 453007, People's Republic of China
| | - Jien Yang
- College of Physics and Materials science, Henan Normal University, Xinxiang, 453007, People's Republic of China
- Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, 453007, People's Republic of China
| | - Zhiyong Liu
- College of Physics and Materials science, Henan Normal University, Xinxiang, 453007, People's Republic of China
- Henan Key Laboratory of Photovoltaic Materials, Henan Normal University, Xinxiang, 453007, People's Republic of China
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41
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Xie YP, Yang Y, Wang G, Liu G. Oxygen vacancies promoted interfacial charge carrier transfer of CdS/ZnO heterostructure for photocatalytic hydrogen generation. J Colloid Interface Sci 2017; 503:198-204. [DOI: 10.1016/j.jcis.2017.05.006] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/28/2017] [Accepted: 05/03/2017] [Indexed: 10/19/2022]
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42
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Mousavi-Kamazani M, Salavati-Niasari M, Goudarzi M, Zarghami Z. Hydrothermal synthesis of CdIn2S4 nanostructures using new starting reagent for elevating solar cells efficiency. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Zeng C, Huang H, Zhang T, Dong F, Zhang Y, Hu Y. Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO 2 Reduction: A Case of Zn XCa 1-XIn 2S 4. ACS APPLIED MATERIALS & INTERFACES 2017; 9:27773-27783. [PMID: 28762265 DOI: 10.1021/acsami.7b08767] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Photocatalytic CO2 reduction into solar fuels illustrates huge charm for simultaneously settling energy and environmental issues. The photoreduction ability of a semiconductor is closely correlated to its conduction band (CB) position. A homogeneous-phase solid-solution with the same crystal system always has a monotonously changed CB position, and the high CB level has to be sacrificed to achieve a benign photoabsorption. Herein, we report the fabrication of heterogeneous-phase solid-solution ZnXCa1-XIn2S4 between trigonal ZnIn2S4 and cubic CaIn2S4. The ZnXCa1-XIn2S4 solid solutions with orderly tuned photoresponsive range from 540 to 640 nm present a more negative CB level and highly enhanced charge-separation efficiency. Profiting from these merits, all of these ZnXCa1-XIn2S4 solid solutions exhibit remarkably strengthened photocatalytic CO2 reduction performance under visible light (λ > 420 nm) irradiation. Zn0.4Ca0.6In2S4, bearing the most negative CB position and highest charge-separation efficiency, casts the optimal photocatalytic CH4 and CO evolution rates, which reach 16.7 and 6.8 times higher than that of ZnIn2S4 and 7.2 and 3.9 times higher than that of CaIn2S4, respectively. To verify the crucial role of the heterogeneous-phase solid solution in promoting the band structure and photocatalytic performance, another heterogeneous-phase solid-solution ZnXCd1-XIn2S4 has been synthesized. It also displays an upshifted CB level and promoted charge separation. This work may provide a new perspective into the development of an efficient visible-light driven photocatalyst for CO2 reduction and other photoreduction reactions.
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Affiliation(s)
- Chao Zeng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences , Beijing 100083, China
| | - Hongwei Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences , Beijing 100083, China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environmental and Biological Engineering, Chongqing Technology and Business University , Chongqing 400067, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences , Beijing 100083, China
| | - Yingmo Hu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences , Beijing 100083, China
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Xue C, Zhang T, Ding S, Wei J, Yang G. Anchoring Tailored Low-Index Faceted BiOBr Nanoplates onto TiO 2 Nanorods to Enhance the Stability and Visible-Light-Driven Catalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16091-16102. [PMID: 28440617 DOI: 10.1021/acsami.7b00433] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, a fantastic one-dimensional (1D) BiOBr/TiO2 nanorod (NR) heterojunction composite was rationally proposed and designed from the perspective of molecular and interface engineering. The fabricated intimately connected interfacial heterojunction between two-dimensional BiOBr nanoplates and 1D TiO2 NRs acts as an interfacial nanochannel to promote efficient interfacial charge migration and separation of photogenerated electron-hole pairs. As a result, 1D BiOBr/TiO2 NR heterojunctions exhibited outstanding visible-light photocatalytic activities and sustained cycling performance. Under visible-light irradiation for 120 min, the reduction efficiency of Cr(VI) over the TB-2 sample (molar ratio: n(Ti)/n(Bi) = 2:1) is as high as 95.4% without adding any scavengers. Furthermore, the sample also shows excellent photodegradation activity of RhB with a much higher apparent rate constant of 0.49 min-1 and 88.5% total organic carbon removal ratio. Furthermore, the corresponding mechanism of enhanced photocatalytic activity is proposed according to comprehensively investigated results from photoluminescence spectroscopy, photoelectrochemical measurement analysis, and radical trapping experiments. This study provides an attractive avenue to design and fabricate highly efficient 1D NR heterojunction photocatalysts, which possessed a high application value in the field of environmental remediation, especially for wastewater purification.
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Affiliation(s)
- Chao Xue
- Department of Chemical Engineering, School of Chemical Engineering and Technology and ‡Department of Applied Chemistry, School of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Tianxi Zhang
- Department of Chemical Engineering, School of Chemical Engineering and Technology and ‡Department of Applied Chemistry, School of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Shujiang Ding
- Department of Chemical Engineering, School of Chemical Engineering and Technology and ‡Department of Applied Chemistry, School of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jinjia Wei
- Department of Chemical Engineering, School of Chemical Engineering and Technology and ‡Department of Applied Chemistry, School of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
| | - Guidong Yang
- Department of Chemical Engineering, School of Chemical Engineering and Technology and ‡Department of Applied Chemistry, School of Science, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an 710049, China
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Two-dimensional mesoporous g-C 3 N 4 nanosheet-supported MgIn 2 S 4 nanoplates as visible-light-active heterostructures for enhanced photocatalytic activity. J Catal 2017. [DOI: 10.1016/j.jcat.2017.01.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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46
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Low J, Yu J, Jaroniec M, Wageh S, Al-Ghamdi AA. Heterojunction Photocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1601694. [PMID: 28220969 DOI: 10.1002/adma.201601694] [Citation(s) in RCA: 1306] [Impact Index Per Article: 186.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 11/04/2016] [Indexed: 05/20/2023]
Abstract
Semiconductor-based photocatalysis attracts wide attention because of its ability to directly utilize solar energy for production of solar fuels, such as hydrogen and hydrocarbon fuels and for degradation of various pollutants. However, the efficiency of photocatalytic reactions remains low due to the fast electron-hole recombination and low light utilization. Therefore, enormous efforts have been undertaken to solve these problems. Particularly, properly engineered heterojunction photocatalysts are shown to be able to possess higher photocatalytic activity because of spatial separation of photogenerated electron-hole pairs. Here, the basic principles of various heterojunction photocatalysts are systematically discussed. Recent efforts toward the development of heterojunction photocatalysts for various photocatalytic applications are also presented and appraised. Finally, a brief summary and perspectives on the challenges and future directions in the area of heterojunction photocatalysts are also provided.
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Affiliation(s)
- Jingxiang Low
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio, 44242, USA
| | - Swelm Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Zeng F, Jiang Y, Wang B, Mao C, Han Q, Ma Z. Self-Organization of Hyperbranched Polyesters Functionalized with Pyrrolo[2,1-a]isoquinoline End Groups and Their Fluorescent Recognition of Anthracene and Pyrene. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fanyang Zeng
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
| | - Yuliang Jiang
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
| | - Bingxiang Wang
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
| | - Chun Mao
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
| | - Qiaorong Han
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
| | - Zhenye Ma
- Jiangsu Key Laboratory of Biofunctional Materials; Key Laboratory of Applied Photochemisty; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210097 China
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48
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Zhuo N, Lan Y, Yang W, Yang Z, Li X, Zhou X, Liu Y, Shen J, Zhang X. Adsorption of three selected pharmaceuticals and personal care products (PPCPs) onto MIL-101(Cr)/natural polymer composite beads. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.12.041] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Natarajan TS, Lee JY, Bajaj HC, Jo WK, Tayade RJ. Synthesis of multiwall carbon nanotubes/TiO2 nanotube composites with enhanced photocatalytic decomposition efficiency. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.03.018] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Kim M, Jo WK. Purification of aromatic hydrocarbons using Ag–multiwall carbon nanotube–ZnO nanocomposites with high performance. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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