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Ahmadi M, Alavi SM, Larimi A. Pt-Cu@Bi 2MoO 6/TiO 2 Photocatalyst for CO 2 Reduction. Inorg Chem 2023. [PMID: 37996778 DOI: 10.1021/acs.inorgchem.3c03372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Bi2MoO6/TiO2 heterojunction photocatalysts were constructed by depositing Bi2MoO6 nanosheets on TiO2 nanobelts' surface using a solvothermal method, and the surface of the optimum Bi2MoO6/TiO2 composite was decorated with copper and/or platinum nanoparticles. The synthesized samples were investigated for the CO2 photocatalytic reduction. The structural and optical properties of synthesized photocatalysts were characterized by XRD, FESEM, EDX, N2-physisorption, Raman, TPD-CO2, DRS, and PL analysis. The Bi2MoO6/TiO2 composite with different molar ratios of Bi2MoO6 to TiO2 (1, 1/2, 1/3, 1/4, 1/5, and 1/6) showed enhanced photocatalytic activity compared to pure Bi2MoO6 and TiO2. In comparison to bulk Bi2MoO6 and TiO2, the formation of a heterojunction between Bi2MoO6 and TiO2 leads to enhanced CO2 adsorption capacity. The enhanced performance of composites can be ascribed to the improved efficiency of light harvesting in the visible light range and suppressing charge recombination. The composite photocatalytic activity indicated that the ratio of Bi2MoO6 to TiO2 in the composite samples influenced the photocatalytic performance. The Bi2MoO6/TiO2 composite with 1/4 molar ratio had the best performance in 8 h (36.4 μmol/gcat), which was about 10 and 3 times higher than TiO2 and Bi2MoO6 photocatalysts, respectively. Under UV-visible light irradiation, the Pt-Cu@BMT4 sample produced the highest amount of methane (83.6 μmol/gcat) during CO2 photoreduction. During four irradiation cycles, the Pt-Cu@BMT4 sample exhibited superior stability with less than 5% decrease in methane production.
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Affiliation(s)
- Maryam Ahmadi
- Catalyst and Nanomaterials Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Seyed Mehdi Alavi
- Catalyst and Nanomaterials Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Afsanehsadat Larimi
- Department of Chemical and Process Engineering, Niroo Research Institute, Tehran 14686-13113, Iran
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2
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Dharman RK, Oh TH. Fabrication of g-C 3N 4@N-doped Bi 2MoO 6 heterostructure for enhanced visible-light-driven photocatalytic degradation of tetracycline pollutant. CHEMOSPHERE 2023; 338:139513. [PMID: 37454984 DOI: 10.1016/j.chemosphere.2023.139513] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
An effective catalyst for the removal of antibiotic pollutants which severely impact water bodies and the environment is most favorable. In this study, g-C3N4 (gCN) and nitrogen-doped Bi2MoO6 (gCN-NBM) heterostructures are developed using a solvothermal process with enhanced photocatalytic degradation of tetracycline (TC) pollutants under visible-light irradiation. The experimental results confirm that nitrogen-doped Bi2MoO6 (NBM) nanomaterials were dispersed on the gCN surface, and a close combination of NBM and gCN leads to the efficient photocatalytic performance of TC. The photocatalytic efficiency of the heterostructure catalysts is four-fold higher than those of the pristine Bi2MoO6 catalysts owing to the excellent photogenerated charge separation and reduced recombination rate. Photocurrent measurements and electrochemical impedance spectra results disclose that the prepared heterostructure catalysts exhibit efficient photo-induced charge transfer. The electron spin resonance spectra and quenching experiments results reveal that superoxide radicals (.O2-) play a major role in TC degradation. This study presents a promising approach for designing efficient visible-light photocatalysts for environmental remediation applications.
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Affiliation(s)
| | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea.
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3
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Saraiva GD, Ramiro de Castro AJ, Teixeira AMR, Sousa Neto VO, Lima JA, Juca RF, Soares JM, Freire PTC, de Sousa FF, Paraguassu W. Pressure-dependence Raman spectroscopy and the lattice dynamic calculations of Bi 2(MoO 4) 3 crystal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 297:122711. [PMID: 37054566 DOI: 10.1016/j.saa.2023.122711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/28/2023] [Accepted: 04/03/2023] [Indexed: 05/14/2023]
Abstract
This work reports a pressure-dependent Raman spectroscopic study and the theoretical lattice dynamics calculations of a Bi2(MoO4)3 crystal. The lattice dynamics calculations were performed, based on a rigid ion model, to understand the vibrational properties of the Bi2(MoO4)3 system and to assign the experimental Raman modes under ambient conditions. The calculated vibrational properties were helpful to support pressure-dependent Raman results, including eventual structural changes induced by pressure changes. Raman spectra were measured in the spectral region between 20 and 1000 cm-1 and the evolution of the pressures values was recorded in the range of 0.1-14.7 GPa. Pressure-dependent Raman spectra showed changes observed at 2.6, 4.9 and 9.2 GPa, these changes being associated with structural phase transformations. Finally, principal component analysis (PCA) and hierarchical cluster analysis (HCA) were performed to infer the critical pressure of phase transformations undergone by the Bi2(MoO4)3 crystal.
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Affiliation(s)
- G D Saraiva
- Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63.902-098 Quixadá, CE, Brazil.
| | - A J Ramiro de Castro
- Universidade Federal do Ceará - Campus Quixadá, Cedro, Quixadá, CE 63902-580, Brazil
| | - A M R Teixeira
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, CEP 62.930-000 Limoeiro do Norte, CE, Brazil
| | - V O Sousa Neto
- Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63.902-098 Quixadá, CE, Brazil
| | - J A Lima
- Departamento de Física, Universidade Federal do Ceará, CEP 60.455-970 Fortaleza, CE, Brazil
| | - R F Juca
- Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63.902-098 Quixadá, CE, Brazil
| | - J M Soares
- Departamento de Física, Universidade do Estado do Rio Grande do Norte, Mossoró-RN CEP 59610-210, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, CEP 60.455-970 Fortaleza, CE, Brazil
| | - F F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - W Paraguassu
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
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Núñez MYN, Rehlaender MÁ, Martínez-de la Cruz A, Susarrey-Arce A, Cuevas-Muñiz FM, Sánchez-Domínguez M, Lara-Ceniceros TE, Bonilla-Cruz J, Zapata AA, Hurtado PC, Pérez-Rodríguez M, Orozco AR, González LT, Longoria-Rodríguez FE. Enhancing Visible Light Photocatalytic Degradation of Bisphenol A Using BiOI/Bi 2MoO 6 Heterostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091503. [PMID: 37177048 PMCID: PMC10179956 DOI: 10.3390/nano13091503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
With the growing population, access to clean water is one of the 21st-century world's challenges. For this reason, different strategies to reduce pollutants in water using renewable energy sources should be exploited. Photocatalysts with extended visible light harvesting are an interesting route to degrade harmful molecules utilized in plastics, as is the case of Bisphenol A (BPA). This work uses a microwave-assisted route for the synthesis of two photocatalysts (BiOI and Bi2MoO6). Then, BiOI/Bi2MoO6 heterostructures of varied ratios were produced using the same synthetic routes. The BiOI/Bi2MoO6 with a flower-like shape exhibited high photocatalytic activity for BPA degradation compared to the individual BiOI and Bi2MoO6. The high photocatalytic activity was attributed to the matching electronic band structures and the interfacial contact between BiOI and Bi2MoO6, which could enhance the separation of photo-generated charges. Electrochemical, optical, structural, and chemical characterization demonstrated that it forms a BiOI/Bi2MoO6 p-n heterojunction. The free radical scavenging studies showed that superoxide radicals (O2•-) and holes (h+) were the main reactive species, while hydroxyl radical (•OH) generation was negligible during the photocatalytic degradation of BPA. The results can potentiate the application of the microwave synthesis of photocatalytic materials.
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Affiliation(s)
- Magaly Y Nava Núñez
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Moisés Ávila Rehlaender
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Azael Martínez-de la Cruz
- CIIDIT, Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Ciudad Universitaria, San Nicolás de los Garza 66451, NL, Mexico
| | - Arturo Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Francisco Mherande Cuevas-Muñiz
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro, s/n, Sanfandila, Pedro Escobedo 76703, QT, Mexico
| | - Margarita Sánchez-Domínguez
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Tania E Lara-Ceniceros
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - José Bonilla-Cruz
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Alejandro Arizpe Zapata
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Patricia Cerda Hurtado
- Centro de Investigación en Materiales Avanzados SC, Subsede Monterrey, Alianza Norte 202, Apodaca 66628, NL, Mexico
| | - Michael Pérez-Rodríguez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave, Eugenio Garza Sada 2501 Sur, Monterrey 64890, NL, Mexico
| | - Aldo Ramírez Orozco
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave, Eugenio Garza Sada 2501 Sur, Monterrey 64890, NL, Mexico
| | - Lucy T González
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave, Eugenio Garza Sada 2501 Sur, Monterrey 64890, NL, Mexico
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Shukla BK, Gautam MK, Rawat S, Bhandari H, Singh J, Garg S. A sustainable approach for the removal of toxic 4-nitrophenol in the presence of H2O2 using visible light active Bi2MoO6 nanomaterial synthesized via continuous flow method. REACTION KINETICS MECHANISMS AND CATALYSIS 2023. [DOI: 10.1007/s11144-023-02402-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Zhang T, Zhou P, Zhang L, Xia C, Xie M, Guo Q, Chen M, Yuan J, Li X, Xu Y. Construction lamellar BaFe 12O 19/Bi 3.64Mo 0.36O 6.55 photocatalyst for enhanced photocatalytic activity via a photo-Fenton-like Mo 6+/Mo 4+redox cycle. CHEMOSPHERE 2022; 307:135909. [PMID: 35940412 DOI: 10.1016/j.chemosphere.2022.135909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/14/2022] [Accepted: 07/30/2022] [Indexed: 06/15/2023]
Abstract
The novel BaFe12O19/Bi3.64Mo0.36O6.55 composite materials were constructed as magnetically recyclable photo-Fenton-like degradation systems. The composite catalyst not only promoted the effective transfer of photo-generated electrons and improved the Mo6+/Mo4+ cycle consequent, but also activated hydrogen peroxide to generate oxidizing free radicals. BaFe12O19/Bi3.64Mo0.36O6.55-0.25 exhibited an outstanding degradation performance for tetracycline hydrochloride it is 1.3 times to Bi3.64Mo0.36O6.55. The thermal catalytic performance of the Bi3.64Mo0.36O6.55 monomer is similar to that of the BaFe12O19/Bi3.64Mo0.36O6.55 material without light. However, the removal rate of BaFe12O19/Bi3.64Mo0.36O6.55 material reaches 84.5% after 60 min with light, far exceeding that of Bi3.64Mo0.36O6.55 material. By way of the contrast experiment with light and without light, it is further demonstrated that interfacial interaction between BaFe12O19 and Bi3.64Mo0.36O6.55 acted a key role in the photocatalytic reaction system. It is also a good advantage that pollutants can be efficiently degraded without adjusting the pH. The characterization of photocurrent and X-ray photoelectron spectroscopy (XPS) also further proved the synergy between the two materials, which is useful to the separation of electrons and holes. The synergy ultimately improves the degradation performance. Besides, BaFe12O19/Bi3.64Mo0.36O6.55 can be easily separated by an external magnetic field after the photocatalytic activity reaction owing to BaFe12O19's magnetic properties. It provides a new research idea for the construction and iron-based heterogeneous Fenton-like system for magnetic degradation of antibiotics.
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Affiliation(s)
- Tingting Zhang
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Puyang Zhou
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Lingxiao Zhang
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Changkun Xia
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Meng Xie
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Qiting Guo
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Min Chen
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Junjie Yuan
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Xiang Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, PR China.
| | - Yuanguo Xu
- School of Chemistry and Chemical Engineering, School of Pharmacy, School of Agricultural Equipment Engineering Institute of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
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Shunmughananthan B, Dheivasigamani T, Sthevan Kovil Pitchai J, Periyasamy S. Performance comparison of distinct bismuth molybdate single phases for asymmetric supercapacitor applications. Dalton Trans 2022; 51:15579-15592. [PMID: 36169008 DOI: 10.1039/d2dt02092k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The enticing features of metal molybdates make them an attractive candidate for energy storage systems. This report describes the synthesis of three distinct single-phase bismuth molybdates (Bi2MoxOy; α-Bi2Mo3O12, β-Bi2Mo2O9, and γ-Bi2MoO6) using the gel matrix particle growth method and their application in high-performance asymmetric supercapacitors. The single phase and purity of the synthesized Bi2MoxOy particles were confirmed by X-ray diffraction (XRD) and further verified by Raman analysis. The UV-visible spectra show the electronic and optical behaviours of the as-synthesized α, β, and γ Bi2MoxOy. The morphologies of the as-synthesized three different Bi2MoxOy phases were analysed using scanning electron microscopy (SEM). The particle formation was further investigated by transmission electron microscopy (TEM), and the interplanar spacings of the Bi2MoxOy phases were in accordance with the planes. The surface area and pore volume of the prepared samples were analysed using Brunauer-Emmett-Teller (BET) analysis. The electrochemical properties of the products were confirmed by various tests, including cyclic voltammetry (CV), galvanostatic charge discharge (GCD), and electrochemical impedance spectroscopy (EIS) in 3 M KOH. Among the three phases, α-Bi2Mo3O12 exhibits a huge specific capacitance (Cs) of 714 F g-1 at a current density of 1 A g-1. Furthermore, it displays an admirable cycling stability of 86.55% after 5000 cycles. The chosen α-Bi2Mo3O12 electrode possesses an increased energy density of 47.5 W h kg-1 at 1 A g-1 with a capacitive retention rate of 71.90% at 5 A g-1 after 10 000 cycles. A remarkable electrochemical performance of Bi2Mo3O12 with an exceptional power density of 750 W kg-1 was observed for the prepared asymmetric device. Bismuth molybdate's notable performance indicates that it can be an active material for energy storage applications.
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Affiliation(s)
- Bagavathy Shunmughananthan
- Nano-crystal Design and Application Lab (n-DAL), Department of Physics, PSG Institute of Technology and Applied Research, Coimbatore-641062, Tamil Nadu, India.
| | - Thangaraju Dheivasigamani
- Nano-crystal Design and Application Lab (n-DAL), Department of Physics, PSG Institute of Technology and Applied Research, Coimbatore-641062, Tamil Nadu, India.
| | - Jesman Sthevan Kovil Pitchai
- Solid State Ionics Lab, PG & Research Department of Physics, Thanthai Periyar Government Arts and Science College (Autonomous), (Affiliated to Bharathidasan University), Tiruchirappalli-620023, Tamil Nadu, India
| | - Sivakumar Periyasamy
- Solid State Ionics Lab, PG & Research Department of Physics, Thanthai Periyar Government Arts and Science College (Autonomous), (Affiliated to Bharathidasan University), Tiruchirappalli-620023, Tamil Nadu, India
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Ma ZP, Zhang L, Ma X, Shi FN. Z-scheme g-C3N4/Bi/Bi3.64Mo0.36O6.55 photocatalyst with dual charge transfer channels: Photodegradation of pollutants and mechanism insights. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Akmal Z, Taj A, Madni A, Sarfraz RA, Iqbal MZ, Afzal M, Mahmood A, Mahmood K, Bajwa SZ, Khan WS. Fabrication of bismuth molybdenum oxide nanoparticles as a dual interface for photocatalysis and biosensing. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02564-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Yang X, Ding X, Wang S, Mao J, Cheng L, Li P, Chen H. Superoxide anion and singlet oxygen dominated faster photocatalytic elimination of nitric oxide over defective bismuth molybdates heterojunctions. J Colloid Interface Sci 2022; 618:248-258. [PMID: 35339961 DOI: 10.1016/j.jcis.2022.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 11/24/2022]
Abstract
Establishing an ideal photocatalytic system with efficient reactive oxygen species (ROS) generation has been regarded as the linchpin for realizing efficient nitric oxide (NO) removal and unveiling the ROS-mediated mechanism. In this work, a novel oxygen-deficient 0D/1D Bi3.64Mo0.36O6.55/Bi2MoO6 heterojunctions (BMO-12-H) were successfully synthesized under the enlightenment of clarified crystal growth mechanism of bismuth molybdates. Because of the synergies between defect-engineering and heterojunction-construction, BMO-12-H demonstrated improved photoelectrochemical properties and O2 adsorption capacity, which in turn facilitated the ROS generation and conversion. The enhancement of •O2- and 1O2 endowed BMO-12-H with strengthened NO removal efficiency (59%) with a rate constant of 12.6*10-2 min-1. A conceivable NO removal mechanism dominated by •O2- and 1O2 was proposed and verified based on the theoretical calculations and in-situ infrared spectroscopy tests, where hazardous NO was oxidized following two different exothermic pathways: the •O2--induced NO → NO3- process and the 1O2-induced NO → NO2 → NO3- process. This work offers a basic guideline for accelerating ROS generation by integrating defect-engineering and heterojunction-construction, and provides new insights into the mechanism of efficient NO removal dominated by •O2- and 1O2.
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Affiliation(s)
- Xianglong Yang
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xing Ding
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China.
| | - Shengyao Wang
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jin Mao
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Ling Cheng
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Peiwu Li
- National Reference Laboratory for Agricultural Testing (Biotoxin), Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Key Laboratory of Detection for Mycotoxins, Quality Inspection and Test Center for Oilseed Products, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China.
| | - Hao Chen
- College of Science, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, PR China.
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12
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Shukla BK, Gautam MK, Rawat S, Bhan C, Bhandari H, Singh J, Garg S. Statistical optimization of process conditions for photocatalytic degradation of phenol with bismuth molybdate photocatalyst. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shukla BK, Rawat S, Gautam MK, Bhandari H, Garg S, Singh J. Photocatalytic Degradation of Orange G Dye by Using Bismuth Molybdate: Photocatalysis Optimization and Modeling via Definitive Screening Designs. Molecules 2022; 27:2309. [PMID: 35408707 PMCID: PMC9000439 DOI: 10.3390/molecules27072309] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/24/2022] [Accepted: 03/31/2022] [Indexed: 12/29/2022] Open
Abstract
In the current study, Bismuth molybdate was synthesized using simple co-precipitation procedure, and their characterization was carried out by various methods such as FT-IR, SEM, and P-XRD. Furthermore, the photocatalytic degradation of Orange G (ORG) dye using synthesized catalyst under visible light irradiation was studied. Response surface Method was used for the optimization of process variables and degradation kinetics evaluated by modeling of experimental data. Based on the experimental design outcomes, the first-order model was proven as a practical correlation between selected factors and response. Further ANOVA analysis has revealed that only two out of six factors have a significant effect on ORG degradation, however ORG concentration and irradiation time indicated the significant effects sequentially. Maximum ORG degradation of approximately 96% was achieved by keeping process parameters in range, such as 1 g L-1 loading of catalyst, 50 mg L-1 concentration of ORG, 1.4 mol L-1 concentration of H2O2 at pH 7 and a temperature of 30 °C. Kinetics of ORG degradation followed the pseudo first order, and almost complete degradation was achieved within 8 h. The effectiveness of the Bi2MoO6/H2O2 photo-Fenton system in degradation reactions is due to the higher number of photo-generated e- available on the catalyst surface as a result of their ability to inhibit recombination of e- and h+ pair.
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Affiliation(s)
- Brijesh Kumar Shukla
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201313, India;
| | - Shalu Rawat
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India; (S.R.); (M.K.G.)
| | - Mayank Kumar Gautam
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India; (S.R.); (M.K.G.)
| | - Hema Bhandari
- Department of Chemistry, Maitreyi College, University of Delhi, Delhi 110021, India;
| | - Seema Garg
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201313, India;
| | - Jiwan Singh
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India; (S.R.); (M.K.G.)
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Zhao D, Xuan Y, Zhang K, Liu X. Highly Selective Production of Ethanol Over Hierarchical Bi@Bi 2 MoO 6 Composite via Bicarbonate-Assisted Photocatalytic CO 2 Reduction. CHEMSUSCHEM 2021; 14:3293-3302. [PMID: 34137192 DOI: 10.1002/cssc.202101075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Photocatalytic CO2 reduction is a sustainable and inexpensive method to solve the energy crisis and the greenhouse effect. However, the major stumbling blocks such as poor product selectivity, low yield of the multi-carbon products, and serious recombination of electron-hole pairs hinder practical application of photocatalysts. Herein, a high-performance Bi@Bi2 MoO6 photocatalyst, Bi nanoparticles grown on the surface of Bi2 MoO6 nanosheets with oxygen vacancies, was fabricated via a simple solvothermal approach. Benefiting from the abundant active sites and effective separation of photogenerated carriers of Bi2 MoO6 nanosheets, and the localized surface plasmon resonance effect of Bi nanoparticles, the Bi@Bi2 MoO6 sample exhibited great photocatalytic CO2 reduction activity. Furthermore, adding NaHCO3 into the system not only significantly increased the C2 H5 OH generation rate but also enhanced the product selectivity. In the photocatalytic measurement (0.17 mol L-1 CO2 -saturated NaHCO3 solution), the highest formation rates of CO, CH3 OH, and C2 H5 OH were reached at 0.85, 0.59, and 17.93 μmol g-1 h-1 (≈92 % selectivity), respectively.
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Affiliation(s)
- Dawei Zhao
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Yimin Xuan
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Kai Zhang
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Xianglei Liu
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
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Ribeiro CS, Lansarin MA. Enhanced photocatalytic activity of Bi 2WO 6 with PVP addition for CO 2 reduction into ethanol under visible light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23667-23674. [PMID: 32974822 DOI: 10.1007/s11356-020-10765-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
The conversion of CO2 into new carbon-based products, such as fuels and chemicals, is an attractive and promising means of mitigating global energy needs and minimizing environmental damage. Although bismuth tungstate (Bi2WO6) as a photocatalyst can promote CO2 photoreduction, a systematic study for the development of a low-cost and efficient catalyst is needed. Thus, Bi2WO6 with different morphologies was successfully synthesized using the hydrothermal method. An experimental design was applied to investigate the effect of synthesis time and PVP (polyvinylpyrrolidone) concentration on catalyst photocatalytic activity. Crystal structures, morphologies, optical absorption, and surface charges of the catalysts were characterized by X-ray diffraction, scanning electron microscope, UV-vis diffuse-reflection spectroscopy, nitrogen adsorption, and zeta potential. All samples exhibited good performance for the photoreduction of CO2 into ethanol, and both time and PVP concentration were significant in the ethanol yield. Changes in synthesis conditions induced differences in catalyst characteristics, such as morphology, crystallinity, and, predominantly, surface area. Furthermore, PVP addition improved photocatalytic efficiency by up to 258% compared with results without the surfactant. The best sample, W-8h-10%, presented a flower-like morphology and ethanol yield of 68.9 μmol g-1 h-1.
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Affiliation(s)
- Camila Silva Ribeiro
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, R. Ramiro Barcelos, 2777, Porto Alegre, RS, 90035-007, Brazil.
| | - Marla Azário Lansarin
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, R. Ramiro Barcelos, 2777, Porto Alegre, RS, 90035-007, Brazil
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16
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Krishnapandi A, Muthukutty B, Chen SM, Arul KT, Shiuan HJ, Selvaganapathy M. Bismuth molybdate incorporated functionalized carbon nanofiber as an electrocatalytic tool for the pinpoint detection of organic pollutant in life samples. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111828. [PMID: 33385681 DOI: 10.1016/j.ecoenv.2020.111828] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Herein, we fabricated a feasible and accurate sensing platform for the quantification of toxic organic pollutant 2-nitroaniline (2-NA) in water samples through electrocatalyst made up of bismuth molybdate (Bi2MoO6, BMO) functionalized carbon nanofiber (f-CNF) modified electrode. The preparation of BMO/f-CNF composite is of two methods, such as co-precipitation (C-BMO/f-CNF) and ultrasonication method (U-BMO/f-CNF). The physicochemical properties of the composites were characterized by XRD, FTIR, Raman, BET, FE-SEM, and HR-TEM techniques. At U-BMO/f-CNF, the charge transfer resistance was low (Rct = 12.47 Ω) compared to C-BMO/f-CNF because nanosized U-BMO particles correctly aim at the defective sites of the f-CNF surface wall. Further, the electrocatalytic activity of C&U-BMO/f-CNF composites was examined by cyclic voltammetry (CV) and differential pulse voltammetry techniques (DPV) for the electrochemical detection of 2-nitroaniline (2-NA). The U-BMO/f-CNF/GCE shows a higher cathodic current, wide dynamic linear range of 0.01-168.01 µM, and superior electrocatalytic activity with a low detection limit (0.0437 µM) and good sensitivity (0.6857 μA μM-1 cm-2). The excellent selectivity nature of U-BMO/f-CNF/GCE was observed in the presence of various organic pollutants and a few toxic metal cations. The practical applicability such as stability, repeatability towards 2-NA outcomes with accepted results. Besides, the practical viability of as proposed U-BMO/f-CNF sensor was investigated in soil and lake water samples delivers good recovery results. Hence from these analyses, we conclude that U-BMO/f-CNF/GCE potential for the determination of hazardous environmental pollutant 2-NA.
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Affiliation(s)
- Alagumalai Krishnapandi
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Balamurugan Muthukutty
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - Kumaravelu Thanigai Arul
- Energy and Biophotonic Laboratory, Department of Physics, AMET (Deemed to be University), Kanathur, Chennai, Tamil Nadu 603 112, India
| | - Huang Ji Shiuan
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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17
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Kása Z, Orbán E, Pap Z, Ábrahám I, Magyari K, Garg S, Hernadi K. Innovative and Cost-Efficient BiOI Immobilization Technique on Ceramic Paper-Total Coverage and High Photocatalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1959. [PMID: 33019625 PMCID: PMC7599943 DOI: 10.3390/nano10101959] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 11/17/2022]
Abstract
In the present work, visible light active bismuth oxyiodide (BiOI) was immobilized on a commercial, non-conductive support (an Al2O3 based ceramic paper) using a novel two-step spray coating technique and investigated with different characterization methods (e.g., SEM, Raman, XPS). Our main goal was to eliminate the separation costs after the photocatalytic measurement and investigate the chemical relevance and opportunity to use this technique in the industry. Our as-prepared uniform BiOI layer had similar properties to the well-known reference BiOI powder. The Raman and XPS measurements confirmed that the enriched amount of the surface iodine defined the color and as well the band gap of the BiOI layer. The durable BiOI layers have prominent photocatalytic activity under UV and visible light irradiation as well. The scale-up procedure proved that the designed BiOI coated paper was reusable and potentially applicable in the industry by straightforward scale-up, which is due to the elaborated non-conventional BiOI coverage estimation method. This immobilization technique could open several opportunities for immobilizing many other visible light active photocatalysts with simple materials and low cost.
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Affiliation(s)
- Zsolt Kása
- Department of Applied and Environmental Chemistry, University of Szeged, 6720 Szeged, Rerrich Béla sqr. 1, 6720 Szeged, Hungary
| | - Eszter Orbán
- Department of Organic Chemistry, University of Szeged, Dóm sqr. 8, 6720 Szeged, Hungary;
| | - Zsolt Pap
- Institute of Environmental Science and Technology, University of Szeged, Tisza Lajos blvd. 103, 6720 Szeged, Hungary; (Z.P.); (K.M.)
- Nanostructured Materials and Bio-Nano-Interfaces Center Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian Str. 42, 400271 Cluj-Napoca, Romania
| | - Imre Ábrahám
- UniChem Ltd., Department of Development, T. 491, Kőiskola str. 3., 6760 Kistelek, Hungary;
| | - Klára Magyari
- Institute of Environmental Science and Technology, University of Szeged, Tisza Lajos blvd. 103, 6720 Szeged, Hungary; (Z.P.); (K.M.)
- Nanostructured Materials and Bio-Nano-Interfaces Center Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian Str. 42, 400271 Cluj-Napoca, Romania
| | - Seema Garg
- Amity Institute of Applied Sciences, Amity University, Sector 125, Noida, Uttar Pradesh 201313, India;
| | - Klara Hernadi
- Department of Applied and Environmental Chemistry, University of Szeged, 6720 Szeged, Rerrich Béla sqr. 1, 6720 Szeged, Hungary
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Zhang X, Ren G, Zhang C, Li R, Zhao Q, Fan C. Photocatalytic Reduction of CO2 to CO over 3D Bi2MoO6 Microspheres: Simple Synthesis, High Efficiency and Selectivity, Reaction Mechanism. Catal Letters 2020. [DOI: 10.1007/s10562-020-03182-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Ahmad M, Bhatti I, Qureshi K, Ahmad N, Nisar J, Zuber M, Ashar A, Khan M, Iqbal M. Graphene oxide supported Fe2(MoO4)3 nano rods assembled round-ball fabrication via hydrothermal route and photocatalytic degradation of nonsteroidal anti-inflammatory drug. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112343] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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Vesali-Kermani E, Habibi-Yangjeh A, Diarmand-Khalilabad H, Ghosh S. Nitrogen photofixation ability of g-C 3N 4 nanosheets/Bi 2MoO 6 heterojunction photocatalyst under visible-light illumination. J Colloid Interface Sci 2019; 563:81-91. [PMID: 31869587 DOI: 10.1016/j.jcis.2019.12.057] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/09/2019] [Accepted: 12/15/2019] [Indexed: 12/15/2022]
Abstract
In this study, we combined bismuth molybdate with graphitic carbon nitride nanosheets with different percentages of 10%, 20%, 30%, and 40%, in which noticeable N2 photoreduction under visible-light illumination was seen for the binary g-C3N4 nanosheets/Bi2MoO6 photocatalysts, denoted as NCN/BMO. The XPS, HRTEM, TEM, XRD, EDX, UV-vis DRS, N2 adsorption-desorption, FT-IR, TGA, PL, photocurrent, and EIS instruments were utilized to characterize the fabricated photocatalysts. The results displayed the construction of type-II heterojunction between the NCN and BMO components for the easy charge transfer. Under mild conditions and using ethanol as a hole scavenger, the NCN/BMO (30%) nanocomposite showed the maximum capability for ammonia generation by 3271 µmol/L g, which is 1.9 and 9.2 times higher than the NCN and BMO components, respectively. The effects of solvent type, pH of solution, and electron scavenger on the rate of NH4+ production were also studied and conversed. Finally, the stability of the NCN/BMO (30%) nanocomposite was evaluated for four cycles, in which the results were desirable.
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Affiliation(s)
- Elham Vesali-Kermani
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran.
| | - Hadi Diarmand-Khalilabad
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Srabanti Ghosh
- Fuel Cell & Battery Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Kolkata 700032, India
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Fu F, Shen H, Xue W, Zhen Y, Soomro RA, Yang X, Wang D, Xu B, Chi R. Alkali-assisted synthesis of direct Z-scheme based Bi2O3/Bi2MoO6 photocatalyst for highly efficient photocatalytic degradation of phenol and hydrogen evolution reaction. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.033] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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CO2 utilization: Direct power generation by a coupled system that integrates photocatalytic reduction of CO2 with photocatalytic fuel cell. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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