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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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Jing J, Liu Y, Jing L, Zhou P, Xie M, He M, Yuan J, Song Y, Xu Y. A novel Bi3.64Mo0.36O6.55/MIL-88A(Fe) nanorod composite material for enhancing photocatalytic activity in photo-Fenton system. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130116] [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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Jatav S, Herber M, Xiang H, Hill EH. Layered Double Hydroxide-Bismuth Molybdate Hybrids toward Water Remediation via Selective Adsorption of Anionic Species. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51921-51930. [PMID: 36355751 DOI: 10.1021/acsami.2c14979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The steady release of anthropogenic toxins into the biosphere is compromising water security globally. Herein, CoAl layered double hydroxide, a clay-like layered material with a cationic surface charge, was organically modified and used to template the growth of Bi2MoO6. The resulting nanohybrid selectively removed the anionic dye methyl orange from aqueous solution and showed an enhancement of greater than 300% in the maximum adsorptivity (1.95 mmol/g) compared to modified CoAl layered double hydroxide (0.42 mmol/g). Interestingly, the observed improvement in adsorption occurs without any significant increase in the surface area of the hybrids. Furthermore, these hybrids exhibit increased broadband visible light absorption, and their photoactivity is slightly improved compared to CoAl layered double hydroxide. This study demonstrates that composites of clay-like materials with Aurivillius oxides are promising sorbent materials for water decontamination and photocatalytic antifouling membranes and shows that the synthetic strategy that was first established with an anionic layered silicate nanoclay can be generalized to other ionic layered materials.
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Affiliation(s)
- Sanjay Jatav
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Marcel Herber
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Hongxiao Xiang
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Eric H Hill
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging (CUI), Luruper Chausee 149, 22761 Hamburg, Germany
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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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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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Jannath KA, Akhtar MH, Gurudatt NG, Park DS, Kim KB, Shim YB. Catalytic SrMoO 4 nanoparticles and conducting polymer composite sensor for monitoring of K +-induced dopamine release from neuronal cells. J Mater Chem B 2022; 10:728-736. [PMID: 35019925 DOI: 10.1039/d1tb02295d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Octahedral SrMoO4 nanoparticles (NPs) with a high degree of crystallinity and controlled size (250-350 nm) were synthesized for the first time by employing a facile hydrothermal method. The prepared NPs were composited with a carboxyl group bearing conducting polymer (2,2:5,2-terthiophene-3-(p-benzoic acid, TBA)) to attain a stable sensor probe (pTBA/SrMoO4) which was analyzed using various surface analysis methods. The catalytic performance of the composite electrode was explored as an oxidation catalyst for biological molecules through anchoring on the conducting polymer layer, which functioned as a matrix to enhance the stability and selectivity of the sensor probe. The pTBA/SrMoO4 coated on glassy carbon displayed excellent electrocatalytic performance for the oxidation of some biologically important molecules, including dopamine (DA) in neuronal cells. The sensor immobilized with the catalyst showed an excellent response for DA with a dynamic range between 0.2 and 500 μM and a detection limit of 5 nM. The proposed sensor demonstrates the detection of trace DA released from PC12 cells under K+ stimulation, followed by inhibition of the release of exogenic DA by a Ca2+ channel blocker (nifedipine). The developed method provides an interesting way to monitor the effect of extracellular substances on living cells and the drug potency test.
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Affiliation(s)
- Khatun A Jannath
- Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Mahmood Hassan Akhtar
- Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea.,Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea.
| | - N G Gurudatt
- Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea.,Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea.
| | - Deog-Su Park
- Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Kwang Bok Kim
- Digital Health Care R&D Department, Korea Institute of Industrial Technology (KITECH), Cheonan, 31056, Republic of Korea.
| | - Yoon-Bo Shim
- Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea.,Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea.
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Yuqing H, Qiaoying L, Shenyuan B, Yufeng L, Zhipeng G, Jinlong Z, Baozhu T. Z-scheme heterostructure BiOCl-Ag-AgBr with enhanced sunlight-driven photocatalytic activity in simultaneous removal of Cr6+ and phenol contaminants. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.06.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Jatav S, Liu J, Herber M, Hill EH. Facet Engineering of Bismuth Molybdate via Confined Growth in a Nanoscale Template toward Water Remediation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18713-18723. [PMID: 33856756 DOI: 10.1021/acsami.1c01144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Certain nanomaterials can filter and alter unwanted compounds due to a high surface area, surface reactivity, and microporous structure. Herein, γ-Bi2MoO6 particles are synthesized via a colloidal hydrothermal approach using organically modified Laponite as a template. This organically modified Laponite interlayer serves as a template promoting the growth of the bismuth molybdate crystals in the [010] direction to result in hybrid Laponite-Bi2MoO6 particles terminating predominantly in the {100} crystal facets. This resulted in an increase in particle size from lateral dimensions of <100 nm to micron scale and superior adsorption capacity compared to bismuth molybdate nanoparticles. These {100}-facet terminated particles can load both cationic and anionic dyes on their surfaces near-spontaneously and retain the photocatalytic properties of Bi2MoO6. Furthermore, dye-laden hybrid particles quickly sediment, rendering the task of particle recovery trivial. The adsorption of dyes is completed within minutes, and near-complete photocatalytic degradation of the adsorbed dye in visible light allowed recycling of these particles for multiple cycles of water decontamination. Their adsorption capacity, facile synthesis, good recycling performance, and increased product yield compared to pure bismuth molybdate make them promising materials for environmental remediation. Furthermore, this synthetic approach could be exploited for facet engineering in other Aurivillius-type perovskites and potentially other materials.
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Affiliation(s)
- Sanjay Jatav
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Junying Liu
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Marcel Herber
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Eric H Hill
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
- The Hamburg Center for Ultrafast Imaging (CUI), Luruper Chausee 149, 22761 Hamburg, Germany
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Suebsom P, Phuruangrat A, Thongtem S, Thongtem T. Enhanced photocatalytic properties of Bi2MoO6 nanoplates deposited with intermetallic AgPd nanoparticles by photoreduction method. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04417-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Guo Q, Jing L, Lan Y, He M, Xu Y, Xu H, Li H. Construction 3D rod-like Bi3.64Mo0.36O6.55/CuBi2O4 photocatalyst for enhanced photocatalytic activity via a photo-Fenton-like Cu2+/Cu+ redox cycle. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117546] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nisar J, Hassan S, Khan MI, Iqbal M, Nazir A, Sharif A, Ahmed E. Hetero-structured Iron Molybdate Nanoparticles: Synthesis, Characterization and Photocatalytic Application. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2020. [DOI: 10.1515/ijcre-2019-0123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThis study focuses on the synthesis of iron molybdate [Fe2(MoO4)3] nanoparticles (NPs) using simple co-precipitation process. The catalyst synthesized was characterized by advanced instrumental techniques such as XRD, SEM, EDX, TGA and FTIR, which confirmed the successful synthesis of NPs. Organic compound Rhodamine B (Rh. B) dye was selected for photo-degradation due to its complex structure and carcinogenic nature. Results exhibited that at neutral pH, the synthesized catalyst is highly effective for the degradation of Rh. B. For 20 mg/L initial concentration with an initial pH of 6.7, the degradation efficiency of Rh. B reaches 98 % within 180 min. Furthermore, the solution pH (1 to 11) affects the catalytic activity. This indicates that at neutral and/or alkaline pH, the usage of iron molybdate overwhelms the efficiency of Fenton-like reaction. It has been observed that Fe2(MoO4)3 showed excellent stability as after recycling it for 9 times its performance remained effective. Based on these data, the synthesized catalyst could be conveniently employed for degradation of toxic pollutants.
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Affiliation(s)
- Jan Nisar
- University of Peshawar, National Centre of Excellence in Physical Chemistry, Peshawar 25120, Pakistan
| | - Sohaib Hassan
- University of Peshawar, National Centre of Excellence in Physical Chemistry, Peshawar 25120, Pakistan
| | | | - Munawar Iqbal
- Department of Chemistry, The University of Lahore, Lahore 53700, Pakistan
| | - Arif Nazir
- Department of Chemistry, The University of Lahore, Lahore 53700, Pakistan
| | - Ahsan Sharif
- University of the Punjab, Institute of Chemistry, Lahore 54590, Pakistan
| | - Ejaz Ahmed
- University of the Punjab, Institute of Chemistry, Lahore 54590, Pakistan
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Preparation, Characterization, and Performance Analysis of S-Doped Bi 2MoO 6 Nanosheets. NANOMATERIALS 2019; 9:nano9091341. [PMID: 31546860 PMCID: PMC6781074 DOI: 10.3390/nano9091341] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/12/2019] [Accepted: 09/17/2019] [Indexed: 11/17/2022]
Abstract
S-doped Bi2MoO6 nanosheets were successfully synthesized by a simple hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption isotherms, Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), elemental mapping spectroscopy, photoluminescence spectra (PL), X-ray photoelectron spectroscopy (XPS), and UV-visible diffused reflectance spectra (UV-vis DRS). The photo-electrochemical performance of the samples was investigated via an electrochemical workstation. The S-doped Bi2MoO6 nanosheets exhibited enhanced photocatalytic activity under visible light irradiation. The photo-degradation rate of Rhodamine B (RhB) by S-doped Bi2MoO6 (1 wt%) reached 97% after 60 min, which was higher than that of the pure Bi2MoO6 and other S-doped products. The degradation rate of the recovered S-doped Bi2MoO6 (1 wt%) was still nearly 90% in the third cycle, indicating an excellent stability of the catalyst. The radical-capture experiments confirmed that superoxide radicals (·O2-) and holes (h+) were the main active substances in the photocatalytic degradation of RhB by S-doped Bi2MoO6.
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Mikhailichenko AI, Morozov AN, Denisenko AV. Designing and Preparing a Thin-Film Photocatalyst from Titanium Dioxide Nanotubes Codoped with Nitrogen and Fluorine. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2019. [DOI: 10.1134/s0040579519040080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yu H, Jiang L, Wang H, Huang B, Yuan X, Huang J, Zhang J, Zeng G. Modulation of Bi 2 MoO 6 -Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901008. [PMID: 30972930 DOI: 10.1002/smll.201901008] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Indexed: 05/20/2023]
Abstract
Highly active photocatalysts driving chemical reactions are of paramount importance toward renewable energy substitutes and environmental protection. As a fascinating Aurivillius phase material, Bi2 MoO6 has been the hotspot in photocatalytic applications due to its visible light absorption, nontoxicity, low cost, and high chemical durability. However, pure Bi2 MoO6 suffers from low efficiency in separating photogenerated carriers, small surface area, and poor quantum yield, resulting in low photocatalytic activity. Various strategies, such as morphology control, doping/defect-introduction, metal deposition, semiconductor combination, and surface modification with conjugative π structures, have been systematically explored to improve the photocatalytic activity of Bi2 MoO6 . To accelerate further developments of Bi2 MoO6 in the field of photocatalysis, this comprehensive Review endeavors to summarize recent research progress for the construction of highly efficient Bi2 MoO6 -based photocatalysts. Furthermore, benefiting from the enhanced photocatalytic activity of Bi2 MoO6 -based materials, various photocatalytic applications including water splitting, pollutant removal, and disinfection of bacteria, were introduced and critically reviewed. Finally, the current challenges and prospects of Bi2 MoO6 are pointed out. This comprehensive Review is expected to consolidate the existing fundamental theories of photocatalysis and pave a novel avenue to rationally design highly efficient Bi2 MoO6 -based photocatalysts for environmental pollution control and green energy development.
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Affiliation(s)
- Hanbo Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Hou Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore
| | - Binbin Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Jin Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, P. R. China
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Zhang Z, Jin S, Hao H, Hou Y, Hou H, Zhang G, Bi J, Yan S, Liu G, Gao W. Synthesis and Enhanced Visible‐Light Photocatalytic Activity of Tm
3+
/Yb
3+
Co–Doped Bi
3.64
Mo
0.36
O
6.55. ChemistrySelect 2019. [DOI: 10.1002/slct.201900382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zuowei Zhang
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
| | - Shanshan Jin
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
| | - Hongshun Hao
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
- Liaoning Key Lab for Aquatic Processing Quality and SafetyDalian Polytechnic University Dalian 116034 China
| | - Yunxia Hou
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
- Liaoning Key Lab for Aquatic Processing Quality and SafetyDalian Polytechnic University Dalian 116034 China
| | - Hongman Hou
- Liaoning Key Lab for Aquatic Processing Quality and SafetyDalian Polytechnic University Dalian 116034 China
| | - Gongliang Zhang
- Liaoning Key Lab for Aquatic Processing Quality and SafetyDalian Polytechnic University Dalian 116034 China
| | - Jingran Bi
- Liaoning Key Lab for Aquatic Processing Quality and SafetyDalian Polytechnic University Dalian 116034 China
| | - Shuang Yan
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
| | - Guishan Liu
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
| | - Wenyuan Gao
- Department of Inorganic Nonmetallic Materials EngineeringDalian Polytechnic University Dalian 116034 China
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Zhen H, Khan MA, Xia M, Lei W, Wang F. Controllable synthesis of flower-root shaped Bi2O3/Bi2MoO6 heterostructures as an efficient photocatalyst under visible light irradiation. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.11.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang J, Liu Z, Ma Z. Facile Formation of Bi 2O 2CO 3/Bi 2MoO 6 Nanosheets for Visible Light-Driven Photocatalysis. ACS OMEGA 2019; 4:3871-3880. [PMID: 31459597 PMCID: PMC6648943 DOI: 10.1021/acsomega.8b03699] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 02/07/2019] [Indexed: 05/13/2023]
Abstract
Bi2O2CO3/Bi2MoO6 heterojunction catalysts were prepared by treating Bi2MoO6 sheets with aqueous NaHCO3 solutions at room temperature. All the Bi2O2CO3/Bi2MoO6 heterojunctions exhibited higher activities than pristine Bi2MoO6 in the photocatalytic degradation of rhodamine B (RhB), methyl orange, and ciprofloxacin under visible-light irradiation, and the most active photocatalyst was found to be the one with a C/Bi molar ratio of ∼1/2.3. Relevant samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, N2 adsorption-desorption, Fourier transform infrared spectroscopy, and UV-vis spectroscopy. The higher activity of Bi2O2CO3/Bi2MoO6 than pristine Bi2MoO6 is explained by the enhanced separation and transfer of photogenerated electron/hole pairs, as verified by transient photocurrent densities, photoluminescence spectroscopy, and electrochemical impedance spectroscopy. Photogenerated holes (h+) and superoxide radical anions (•O2 -) were found to be the main active species. The good reusability of Bi2O2CO3/Bi2MoO6 was testified by cycling degradation of RhB and tetracycline hydrochloride.
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Affiliation(s)
- Junlei Zhang
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P.R. China
| | - Zhendong Liu
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P.R. China
| | - Zhen Ma
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P.R. China
- Shanghai
Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China
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Cheng L, Liu L, Wang D, Yang F, Ye J. Synthesis of bismuth molybdate photocatalysts for CO2 photo-reduction. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2018.12.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Facile one-pot synthesis of wood based bismuth molybdate nano-eggshells with efficient visible-light photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.08.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mahmoud HA, Narasimharao K, Ali TT, Khalil KMS. Acidic Peptizing Agent Effect on Anatase-Rutile Ratio and Photocatalytic Performance of TiO2 Nanoparticles. NANOSCALE RESEARCH LETTERS 2018; 13:48. [PMID: 29427190 PMCID: PMC5807258 DOI: 10.1186/s11671-018-2465-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/28/2018] [Indexed: 05/31/2023]
Abstract
TiO2 nanoparticles were synthesized from titanium isopropoxide by a simple peptization method using sulfuric, nitric, and acetic acids. The effect of peptizing acid on physicochemical and photocatalytic properties of TiO2 powders was studied. The structural properties of synthesized TiO2 powders were analyzed by using XRD, TEM, N2-physisorption, Raman, DR UV-vis, FTIR, and X-ray photoelectron spectroscopy techniques. The characterization results showed that acetic acid peptization facilitated the formation of pure anatase phase after thermal treatment at 500 °C; in contrast, nitric acid peptization led to a major rutile phase formation (67%). Interestingly, the sample peptized using sulfuric acid yielded 95% anatase and 5% rutile phases. The photocatalytic activity of synthesized TiO2 nanoparticles was evaluated for degradation of selected organic dyes (crystal violet, methylene blue, and p-nitrophenol) in aqueous solution. The results confirmed that the TiO2 sample peptized using nitric acid (with rutile and anatase phases in 3:1 ratio) offered the highest activity for degradation of organic dyes, although, TiO2 samples peptized using sulfuric acid and acetic acid possessed smaller particle size, higher band gap energy, and high surface area. Interestingly, TiO2 sample peptized with nitric acid possessed relatively high theoretical photocurrent density (0.545 mAcm-2) and pore diameter (150 Å), which are responsible for high electron-hole separation efficiency and diffusion and mass transportation of organic reactants during the photochemical degradation process. The superior activity of TiO2 sample peptized with nitric acid is due to the effective transfer of photogenerated electrons between rutile and anatase phases.
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Affiliation(s)
- Hatem A. Mahmoud
- Chemistry Department, Faculty of Science, Sohag University, P.O. Box 82524, Sohag, Egypt
- Chemistry Department, College of Science, University of Hail, Ha’il, 81451 Kingdom of Saudi Arabia
| | - Katabathini Narasimharao
- Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
| | - Tarek T. Ali
- Chemistry Department, Faculty of Science, Sohag University, P.O. Box 82524, Sohag, Egypt
- Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box, 80203, Jeddah, 21589 Kingdom of Saudi Arabia
| | - Kamal M. S. Khalil
- Chemistry Department, Faculty of Science, Sohag University, P.O. Box 82524, Sohag, Egypt
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22
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Xiong Y, Yang L, He H, Wan J, Xiao P, Guo W. Enhanced charge separation and transfer by Bi 2 MoO 6 @Bi 2 Mo 2 O 9 compound using SILAR for photoelectrochemical water oxidation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.090] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Meng X, Hao M, Shi J, Cao Z, He W, Gao Y, Liu J, Li Z. Novel CuO/Bi 2 WO 6 heterojunction with enhanced visible light photoactivity. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.09.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Facile fabrication of heterostructured bismuth titanate nanocomposites: The effects of composition and band gap structure on the photocatalytic activity performance. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.12.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Jin X, Ye L, Xie H, Chen G. Bismuth-rich bismuth oxyhalides for environmental and energy photocatalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.010] [Citation(s) in RCA: 242] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Park J. Visible and near infrared light active photocatalysis based on conjugated polymers. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.03.022] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Lin X, Xu D, Zhao R, Xi Y, Zhao L, Song M, Zhai H, Che G, Chang L. Highly efficient photocatalytic activity of g-C 3 N 4 quantum dots (CNQDs)/Ag/Bi 2 MoO 6 nanoheterostructure under visible light. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.01.020] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Novel visible light response Ag 3 PO 4 /TiP 2 O 7 composite photocatalyst with low Ag consumption. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Zhang Y, Ma Y, Wang L, Sun Q, Zhang F, Shi J. Facile one-step hydrothermal synthesis of noble-metal-free hetero-structural ternary composites and their application in photocatalytic water purification. RSC Adv 2017. [DOI: 10.1039/c7ra10732c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The development of heterostructured and metal decorated photocatalysts using a relatively simple, efficient and economical one-step strategy is crucial for commercial applications.
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Affiliation(s)
- Yuanyuan Zhang
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
| | - Yongchao Ma
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
| | - Lili Wang
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
| | - Qinxing Sun
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
| | - Fan Zhang
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
| | - Jinsheng Shi
- Qingdao Agricultural University
- Department of Chemistry and Pharmaceutical Science
- Qingdao
- P. R. China
- Qingdao Bona Biomimetic Composite Reaserch Institute Co. Ltd
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30
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Song LN, Chen L, He J, Chen P, Zeng HK, Au CT, Yin SF. The first synthesis of Bi self-doped Bi2MoO6–Bi2Mo3O12 composites and their excellent photocatalytic performance for selective oxidation of aromatic alkanes under visible light irradiation. Chem Commun (Camb) 2017; 53:6480-6483. [DOI: 10.1039/c7cc02890c] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi self-doped Bi2MoO6–Bi2Mo3O12 composites were first synthesized by a one-step method and they showed excellent photocatalytic performance in the selective oxidation of aromatic alkanes under visible light irradiation.
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Affiliation(s)
- Lu-Na Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Lang Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Jie He
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Peng Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Huang-Kai Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan 411104
- China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
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31
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Zhang J, Liu H, Ma Z. Flower-like Ag 2 O/Bi 2 MoO 6 p-n heterojunction with enhanced photocatalytic activity under visible light irradiation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.08.009] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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32
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Lin X, Wei B, Zhang X, Song M, Yu S, Gao Z, Zhai H, Zhao L, Che G. Construction of heterostructured g-C3N4/Ag/Bi3.64Mo0.36O6.55 nanospheres with enhanced visible-light photocatalytic activity. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.05.052] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Study on the mechanism of the photodegradation of methylene blue on Bi2MoO6/BiPO4 catalysts: different molar ratios and pH values. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1007-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Deposition of Visible Light Active Photocatalytic Bismuth Molybdate Thin Films by Reactive Magnetron Sputtering. MATERIALS 2016; 9:ma9020067. [PMID: 28787867 PMCID: PMC5456504 DOI: 10.3390/ma9020067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/13/2016] [Accepted: 01/15/2016] [Indexed: 01/27/2023]
Abstract
Bismuth molybdate thin films were deposited by reactive magnetron co-sputtering from two metallic targets in an argon/oxygen atmosphere, reportedly for the first time. Energy dispersive X-ray spectroscopy (EDX) analysis showed that the ratio of bismuth to molybdenum in the coatings can be effectively controlled by varying the power applied to each target. Deposited coatings were annealed in air at 673 K for 30 min. The crystalline structure was assessed by means of Raman spectroscopy and X-ray diffraction (XRD). Oxidation state information was obtained by X-ray photoelectron spectroscopy (XPS). Photodegradation of organic dyes methylene blue and rhodamine B was used for evaluation of the photocatalytic properties of the coatings under a visible light source. The photocatalytic properties of the deposited coatings were then compared to a sample of commercial titanium dioxide-based photocatalytic product. The repeatability of the dye degradation reactions and photocatalytic coating reusability are discussed. It was found that coatings with a Bi:Mo ratio of approximately 2:1 exhibited the highest photocatalytic activity of the coatings studied; its efficacy in dye photodegradation significantly outperformed a sample of commercial photocatalytic coating.
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35
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Glycothermal synthesis of Dy-doped Bi2MoO6 nanoplates and their photocatalytic performance. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-015-2346-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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36
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Liu Y, Guo H, Zhang Y, Tang W. Feasible oxidation of 17β-estradiol using persulfate activated by Bi2WO6/Fe3O4 under visible light irradiation. RSC Adv 2016. [DOI: 10.1039/c6ra18391c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bismuth tungstate magnetic composites (BTMCs, Bi2WO6/Fe3O4) were synthesized by a template-free hydrothermal process.
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Affiliation(s)
- Yang Liu
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- China
| | - Hongguang Guo
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- China
- National Engineering Laboratory for Clean Technology of Leather Manufacture
| | - Yongli Zhang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- China
| | - Weihong Tang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- China
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37
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Lin X, Yu S, Gao Z, Zhang X, Che G. Heterostructured RGO/Bi3.64Mo0.36O6.55 nanospheres: Synthesis and enhanced visible-light-driven photocatalytic activity. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2015.10.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Chen D, Hao Q, Wang Z, Ding H, Zhu Y. Influence of phase structure and morphology on the photocatalytic activity of bismuth molybdates. CrystEngComm 2016. [DOI: 10.1039/c6ce00264a] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bismuth molybdate photocatalysts with different phase structures and morphologies were controllably synthesized via a refluxing method by adjusting the pH in the reaction system.
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Affiliation(s)
- Daimei Chen
- National Laboratory of Mineral Materials
- School of Materials Sciences and Technology
- China University of Geosciences
- Beijing 100083, China
| | - Qiang Hao
- National Laboratory of Mineral Materials
- School of Materials Sciences and Technology
- China University of Geosciences
- Beijing 100083, China
| | - Zhihong Wang
- National Laboratory of Mineral Materials
- School of Materials Sciences and Technology
- China University of Geosciences
- Beijing 100083, China
- Department of Chemistry
| | - Hao Ding
- National Laboratory of Mineral Materials
- School of Materials Sciences and Technology
- China University of Geosciences
- Beijing 100083, China
| | - Yongfa Zhu
- Department of Chemistry
- Tsinghua University
- Beijing, PR China
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39
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Miao Y, Yin H, Peng L, Huo Y, Li H. BiOBr/Bi2MoO6 composite in flower-like microspheres with enhanced photocatalytic activity under visible-light irradiation. RSC Adv 2016. [DOI: 10.1039/c5ra18987j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BiOBr/Bi2MoO6 flower-like microspheres synthesized by a facile solvothermal method, exhibited high photocatalytic activity owing to the enhanced light harvesting via multiple-reflections and the reduced photoelectron–hole recombination.
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Affiliation(s)
- Yingchun Miao
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of RE Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Haibo Yin
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of RE Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Lu Peng
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of RE Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Yuning Huo
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of RE Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry
- Shanghai Key Laboratory of RE Functional Materials
- Shanghai Normal University
- Shanghai 200234
- China
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40
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Heterostructured Ag 3 PO 4 /Ag/Bi 3.64 Mo 0.36 O 6.55 nanospheres with enhanced photocatalytic activity under visible light irradiation. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.10.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Phuruangrat A, Ekthammathat N, Dumrongrojthanath P, Thongtem S, Thongtem T. Hydrothermal synthesis, structure, and optical properties of pure and silver-doped Bi2MoO6 nanoplates. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024415130051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Bismuth Molybdate Catalysts Prepared by Mild Hydrothermal Synthesis: Influence of pH on the Selective Oxidation of Propylene. Catalysts 2015. [DOI: 10.3390/catal5031554] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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Quaternary heterostructured Ag–Bi2O2CO3/Bi3.64Mo0.36O6.55/Bi2MoO6 composite: Synthesis and enhanced visible-light-driven photocatalytic activity. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.05.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Dai Z, Qin F, Zhao H, Tian F, Liu Y, Chen R. Time-dependent evolution of the Bi(3.64)Mo(0.36)O(6.55)/Bi2MoO6 heterostructure for enhanced photocatalytic activity via the interfacial hole migration. NANOSCALE 2015; 7:11991-9. [PMID: 26108795 DOI: 10.1039/c5nr02745d] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Hierarchical Bi(3.64)Mo(0.36)O(6.55)/Bi2MoO6 isotype heterostructures were successfully prepared via a one-pot hydrothermal route by using Bi2O3 porous nanospheres as a sacrificial template. By tuning the reaction time, the formation process of the Bi(3.64)Mo(0.36)O(6.55)/Bi2MoO6 heterostructure involving Mo etching, phase transition and anisotropic growth was clearly identified. More importantly, the Bi(3.64)Mo(0.36)O(6.55)/Bi2MoO6 heterostructure displayed remarkably enhanced photocatalytic activity for dye photodegradation than pure phase bismuth molybdate due to the efficient electron-hole separation and the interfacial photogenerated hole migration from inside the Bi(3.64)Mo(0.36)O(6.55) layer to outside the Bi2MoO6 layer. The opposite hole migration from the outer layer to the inner layer was also detected in Bi2O3/Bi2WO6 heterostructures, which resulted in the decrease of photocatalytic activity, further verifying the importance of hole migration direction. This work provides a novel route to fabricate heterostructured photocatalysts, as well as gives a strategy for mediating the charge migration to improve photocatalytic performance.
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Affiliation(s)
- Zan Dai
- Key Laboratory for Green Chemical Process of Ministry of Education and School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, 430073, PR China.
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45
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Di J, Xia J, Ji M, Li H, Xu H, Li H, Chen R. The synergistic role of carbon quantum dots for the improved photocatalytic performance of Bi2MoO6. NANOSCALE 2015; 7:11433-43. [PMID: 26083694 DOI: 10.1039/c5nr01350j] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Novel carbon quantum dot (CQD) modified Bi2MoO6 photocatalysts were prepared via a facile hydrothermal process. The CQD modified Bi2MoO6 materials were characterized by multiple techniques. The CQDs with the average size of about 7 nm were distributed on the surface of Bi2MoO6 nanosheets. The photocatalytic activity of as-prepared CQD modified Bi2MoO6 materials was investigated sufficiently by the photodegradation of four different kinds of pollutants, such as ciprofloxacin (CIP), bisphenol A (BPA), tetracycline hydrochloride (TC), and methylene blue (MB). The improved photocatalytic activity was observed for CQD modified Bi2MoO6 samples compared with pure Bi2MoO6 under visible light irradiation. The CQD modified Bi2MoO6 photocatalysts with a CQD content of 2 wt% exhibited the optimum photocatalytic activity, which was found to increase by about 5 times than that of the pure Bi2MoO6 for the photodegradation of CIP. This improvement was attributed to the crucial role of CQDs, which acted as a photocenter for absorbing solar light, a charge separation center for suppressing charge recombination, and a catalytic center for pollutant photo-degradation. The main active species were determined to be ˙OH and O˙-(2) by the ESR technique and analyzed by calculations as well as XPS valence spectra, and a possible photocatalytic mechanism was also proposed.
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Affiliation(s)
- Jun Di
- School of Chemistry and Chemical Engineering, Institute of Energy, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, P. R. China.
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46
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Kumar R, Rana D, Umar A, Sharma P, Chauhan S, Chauhan MS. Ag-doped ZnO nanoellipsoids: Potential scaffold for photocatalytic and sensing applications. Talanta 2015; 137:204-13. [DOI: 10.1016/j.talanta.2015.01.039] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 12/20/2014] [Accepted: 01/29/2015] [Indexed: 11/25/2022]
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47
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Lin X, Hou J, Jiang S, Lin Z, Wang M, Che G. A Z-scheme visible-light-driven Ag/Ag3PO4/Bi2MoO6 photocatalyst: synthesis and enhanced photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra22110b] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel Z-scheme Ag/Ag3PO4/Bi2MoO6 photocatalyst was successfully synthesized. Ag/Ag3PO4/Bi2MoO6 hybrid photocatalyst exhibited enhanced photocatalytic activity.
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Affiliation(s)
- Xue Lin
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
| | - Jing Hou
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
| | - Shanshan Jiang
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
| | - Zhe Lin
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
| | - Miao Wang
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
| | - Guangbo Che
- Key Laboratory of Preparation and Application Environmentally Friendly Materials of Ministry of Education
- Jilin Normal University
- Siping 136000
- P. R. China
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48
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Wang F, Cao K, Zhang Q, Gong X, Zhou Y. A computational study on the photoelectric properties of various Bi2O3 polymorphs as visible-light driven photocatalysts. J Mol Model 2014; 20:2506. [PMID: 25381618 DOI: 10.1007/s00894-014-2506-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 10/13/2014] [Indexed: 11/29/2022]
Abstract
This paper presents first-principle studies on the photoelectric properties of various Bi2O3 polymorphs. The intrinsic reason of different photocatalytic activities was revealed by electronic structures and optical features. Results showed that for α, β, and γ-Bi2O3, the top of valence bands were mainly constructed by Bi6s and O2p orbitals, and the bottom of conduction bands were dominantly composed by Bi6p orbital. However, two intermediate bands were found at the Fermi level for γ-Bi2O3, which leads to a two-step transition from the top of valence band to the bottom of conduction band and facilitates electron transition under irradiation. Absent forbidden gap was found in δ-Bi2O3, resulting in a semimetallic character due to its intrinsic oxygen vacancy and high ionic conductivity. Moreover, the optical properties of α, β, and γ-Bi2O3 were investigated by absorption spectrum, dielectric constant function, and energy loss spectroscopy. We concluded that the photocatalytic activities followed in the order of γ-Bi2O3 > β-Bi2O3 > α-Bi2O3, in accord with the experimental report. Calculation results illustrated the experimental observations and provided a useful guidance in exploring promising visible-light semiconductor photocatalysts.
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Affiliation(s)
- Fang Wang
- School of Material Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China,
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49
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Li KL, Lee WW, Lu CS, Dai YM, Chou SY, Chen HL, Lin HP, Chen CC. Synthesis of BiOBr, Bi3O4Br, and Bi12O17Br2 by controlled hydrothermal method and their photocatalytic properties. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.04.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Controlled hydrothermal synthesis of bismuth oxybromides and their photocatalytic properties. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.12.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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