1
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Siva V, Murugan A, Shameem AS, Jhelai S, Palanivel B, Asaithambi S, GaneshKumar P, Kim I, Govindasamy P, Lee J, Paramasivam S. Rational design of CdS-enwrapped polypyrrole nanoparticles for wastewater treatment: removal of hazardous pollutants in aqueous solutions. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-33285-y. [PMID: 38653896 DOI: 10.1007/s11356-024-33285-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 04/07/2024] [Indexed: 04/25/2024]
Abstract
The modern world requires a chemical industry that can run at low production costs while producing high-quality products with minimal environmental impact. The development of environmentally friendly, cost-effective, and efficient wastewater treatment materials remains a major problem for the sustainable approach. We prepared nanoscale cadmium sulfide (CdS)-enwrapped polypyrrole (PPy) polymer composites for degradation of organic pollutants. The prepared CdS@PPy nanocomposites were characterized by powder X-ray diffraction, scanning electron microscope (SEM), field emission scanning electron microscope (FESEM), Fourier transform infrared spectroscopy (FTIR), and ultraviolet-visible (UV) absorption spectroscopy, indicating proper intercalation between CdS and PPy. Consequently, the catalytic efficiency of the synthesized hybrid nanocomposites was analyzed through the degradation of methylene blue (MB) and rhodamine B (Rh B) under visible light irradiation. The measured degradation efficiency of the dye solutions under the photolysis process is about 18% and 23% for MB and Rh B dye, respectively. Furthermore, the recycle test result concludes that the CdS@PPy composite exhibits 91% and 89% of MB and Rh B dye degradation efficiency even at the 4th cycle, respectively. The positive synergistic impact of CdS and PPy may be the result of effective photocatalytic degradation of MB and RhB.
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Affiliation(s)
- Vadivel Siva
- Department of Physics, Karpagam Academy of Higher Education, Coimbatore, 641 021, India
- Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, 641 021, India
| | - Anbazhagan Murugan
- Department of Science and Humanities, Karpagam College of Engineering, Coimbatore, 641 032, India
| | - Abdul Samad Shameem
- Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, 641 021, India
- Department of Science and Humanities, Karpagam Academy of Higher Education, Coimbatore, 641 021, India
| | - Sahadevan Jhelai
- Department of Physics, Karpagam Academy of Higher Education, Coimbatore, 641 021, India
| | - Baskaran Palanivel
- Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, 638 401, India
| | - Sankaiya Asaithambi
- Nanotechnology Advanced Materials Engineering, Sejong University, Seoul, South Korea
| | - Poongavanam GaneshKumar
- Department of Mechanical Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603 203, India
| | - Ikhyun Kim
- Department of Mechanical Engineering, Keimyung University, Daegu, 42601, Republic of Korea
| | - Palanisamy Govindasamy
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea.
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea
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2
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Palanivel B, Hossain MS, Macadangdang RR, Sahaya Jude Dhas S, Al-Enizi AM, Ubaidullah M, Kim WK, Gedi S, Ignatius Arockiam S. Effect of rGO support on Gd@ZnO for UV–visible-light driven photocatalytic organic pollutant degradation. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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3
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Yogesh Kumar K, Prashanth MK, Parashuram L, Palanivel B, Alharti FA, Jeon BH, Raghu MS. Gadolinium sesquisulfide anchored N-doped reduced graphene oxide for sensitive detection and degradation of carbendazim. Chemosphere 2022; 296:134030. [PMID: 35189195 DOI: 10.1016/j.chemosphere.2022.134030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/29/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Agriculture is having a major role in solving issues associated with food shortages across the globe. Carbendazim (CZM) is one of the fungicides which is commonly used in agriculture to grow crops in large quantities and fast. Monitoring CZM content is in high demand for environmental remediation. The present work deals with the synthesis of gadolinium sesquisulfide anchored Nitrogen-doped reduced graphene oxide (Gd2S3/NRGO) through a simple microwave-assisted method. X-ray diffraction and morphological studies confirm the formation of the nanocomposite. Gd2S3/NRGO showed enhanced activity both in electrochemical detection and light-driven degradation of CZM compared to Gd2S3 and NRGO. Gd2S3/NRGO modified glassy carbon electrode (GCE) exhibit a wide linear range of 0.01-450 μM CZM with 0.009 μM LOD using differential pulse voltammetry (DPV). Gd2S3/NRGO@GCE showed good selectivity, stability, and recovery (98.13-99.10%) in the river water sample. In addition, Gd2S3/NRGO has been explored towards the visible-light-induced degradation of CZM. The reactions conditions were optimized to achieve maximum efficiency. 94% of CZM was degraded within 90 min in presence of Gd2S3/NRGO. Mechanism of electrochemical redox reaction and degradation of CZM in presence of Gd2S3/NRGO has been explored to the maximum extent possible. Degradation intermediates were identified using LC-MS.
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Affiliation(s)
- K Yogesh Kumar
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore, 562112, India
| | - M K Prashanth
- Department of Chemistry, BNM Institute of Technology, Banashankari, Bangalore, 560070, India
| | - L Parashuram
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore, 560103, India
| | - Baskaran Palanivel
- Department of Physics, King Engineering College, Sriperumbudur, Kancheepuram, 602117, India
| | - Fahad A Alharti
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - M S Raghu
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore, 560103, India.
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4
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Shkir M, Palanivel B, Khan A, Kumar M, Chang JH, Mani A, AlFaify S. Enhanced photocatalytic activities of facile auto-combustion synthesized ZnO nanoparticles for wastewater treatment: An impact of Ni doping. Chemosphere 2022; 291:132687. [PMID: 34718012 DOI: 10.1016/j.chemosphere.2021.132687] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/05/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
In the current work, we present the facile one-pot synthesis of 0.0, 0.5, 1.0, 2.0 and 3.0 wt% of Ni doped ZnO nanoparticles (Ni:ZnO NPs) through combustion route at 550 °C. Structural and vibrational studies approve the synthesis of monophasic hexagonal Ni:ZnO NPs. The crystallite size was calculated to be in the range of 36-60 nm for pure and doped samples. The composition of all elements in the final product along with their homogeneity, was approved through EDX/FESEM e-mapping analysis. The morphology and phase confirmation of the prepared samples was investigated through FESEM and TEM/HRTEM analyses. TEM/HRTEM study shows that the size of grains is within the range of 100 nm and grown along the c-axis as the lattice spacing is found ∼2.6005 Å. Diffused reflectance study was used to estimate the energy gap for all samples and found to reduce from 3.287 eV for pure to 3.258 eV for 3.0 wt% Ni doping. From an applications point of view, the photocatalytic performance of Ni:ZnO NPs was studied, and with 3.0 wt% of Ni doping in ZnO the degradation of methylene blue (MB) and tetracycline (TCN) pollutants were found to be remarkably improved.
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Affiliation(s)
- Mohd Shkir
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia; School of Science and Technology, Glocal University, Saharanpur, 247001, Uttar Pradesh, India.
| | - Baskaran Palanivel
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kanchipuram, TamilNadu, 603203, India
| | - Aslam Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohanraj Kumar
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung City, 413310, Taiwan
| | - Jih-Hsing Chang
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung City, 413310, Taiwan
| | - Alagiri Mani
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kanchipuram, TamilNadu, 603203, India
| | - S AlFaify
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
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5
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Andra S, Balu SK, Ponnada S, Mohan S, Hossain MS, Sivakumar B, Palanivel B, Alsalme A, Muthalagu M. Antimicrobial and Toxicity Studies of
Dodonaea aungustifolia
Extracts‐Mediated Green Synthesized Copper Oxide Particles. ChemistrySelect 2022. [DOI: 10.1002/slct.202104017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Swetha Andra
- Center for Nanoscience and Technology Chennai Institute of Technology Chennai 600069 Tamilnadu India
| | - Satheesh kumar Balu
- Department of Oral Pathology Saveetha Dental College Chennai 600077 Tamilnadu India
| | - Srikanth Ponnada
- Sustainable Materials and Catalysis Research Laboratory (SMCRL) Department of Chemistry Indian Institute of Technology Jodhpur Karwad Jodhpur 342037 India
- Department of Engineering Chemistry Andhra University College of Engineering (A) Andhra University Visakhapatnam 530003 India
| | - Sakar Mohan
- Centre for Nano and Material Sciences Jain University Bangalore 562112 Karnataka India
| | - Md Shahadat Hossain
- Department of Innovation Systems Engineering Graduate School of Engineering Utsunomiya University Yoto 7–1-2 Utsunomiya 321–8585 Japan
| | - Bharathkumar Sivakumar
- National Centre for Nanoscience and Nanotechnology University of Madras Chennai 600025 Tamilnadu India
| | - Baskaran Palanivel
- Department of Physics Kings Engineering College Sriperumbudur, Kancheepuram 602117 Tamil Nadu India
| | - Ali Alsalme
- Department of Chemistry College of Science King Saud University Riyadh 1145 Saudi Arabia
| | - Murugesan Muthalagu
- Department of Textile Technology Anna University Chennai 600025 Tamilnadu India
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6
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Palanivel B, Macadangdang RR, Hossain MS, Alharthi FA, Kumar M, Chang JH, Gedi S. Rare earth (Gd, La) co-doped ZnO nanoflower for direct sunlight driven photocatalytic activity. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Palanivel B, Hossain MS, Macadangdang RR, Ayappan C, Krishnan V, Marnadu R, Kalaivani T, Alharthi FA, Sreedevi G. Activation of Persulfate for Improved Naproxen Degradation Using FeCo 2O 4@g-C 3N 4 Heterojunction Photocatalysts. ACS Omega 2021; 6:34563-34571. [PMID: 34963941 PMCID: PMC8697371 DOI: 10.1021/acsomega.1c04896] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 12/01/2021] [Indexed: 05/04/2023]
Abstract
An effective heterojunction with robust charge separation and enormous degradation efficiency is the major task for photocatalyst preparation. In this study, we have prepared the FeCo2O4-loaded g-C3N4 nanosheet by the sol-gel-assisted calcination method for photo-Fenton-like degradation under visible-light irradiation by activating persulfate. The nanocomposite exhibits a higher charge separation efficiency than pure g-C3N4 and FeCo2O4 for the degradation reaction against naproxen drugs. An effective interaction between the nanoparticles increases the degradation efficiency up to 91% with a synergistic index of 73.62%. Moreover, the nanocomposite exhibits a 78% mineralization efficiency against the naproxen pollutant under visible-light irradiation. For practical implementation, the degradation reaction was tested with various pH values, different water sources (DI, lake, and tap water), and light sources (LED (visible)/direct sunlight (UV-visible)). Moreover, the possible degradation mechanism predicted by the elemental trapping experiment and the recycling experiment clearly revealed that the heterojunction composite has a high enough degradation stability.
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Affiliation(s)
- Baskaran Palanivel
- Department
of Physics, Kings Engineering College, Sriperumbudur, Kancheepuram, Tamil Nadu 602117, India
| | - Md Shahadat Hossain
- Department
of Innovation Systems Engineering, Graduate School of Engineering, Utsunomiya University, Yoto 7-1-2, Utsunomiya 321-8585, Japan
| | - Romulo R. Macadangdang
- Department
of Medical Technology, Institute of Arts and Sciences, Far Eastern University, Manila 1008, Philippines
| | - Chinnadurai Ayappan
- Department
of Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu 603203, India
| | - Vignesh Krishnan
- Department
of Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu 603203, India
| | - Raj Marnadu
- PG
Department of Physics, GTN Arts College, Dindigul, Tamil Nadu 624005, India
| | - Thirunavukarasu Kalaivani
- Department
of Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu 603203, India
| | - Fahad A Alharthi
- Chemistry
Department, College of Science, King Saud
University, Riyadh 1145, Saudi Arabia
| | - Gedi Sreedevi
- School
of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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8
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Shkir M, Alshahrani T, Chandekar KV, Manthrammel MA, Sayed MA, Ashraf IM, Palanivel B, AlFaify S. Effect of Gd3+ Doping on Linear and Nonlinear Optical Properties of PbI2/FTO Thin Films for Optoelectronic and Nonlinear Applications. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01765-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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9
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Palanivel B, Alagiri M. Construction of rGO Supported Integrative NiFe
2
O
4
/g‐C
3
N
4
Nanocomposite: Role of Charge Transfer for Boosting the OH
.
Radical Production to Enhance the Photo‐Fenton Degradation. ChemistrySelect 2020. [DOI: 10.1002/slct.202002519] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Baskaran Palanivel
- Department of Physics and NanotechnologySRM Institute of Science and Technology, Kattankulathur Kancheepuram 603203, Tamil Nadu India
- Nanotechnology Research CenterSRM Institute of Science and Technology, Kattankulathur Kancheepuram 603203 Tamil Nadu India
| | - Mani Alagiri
- Department of Physics and NanotechnologySRM Institute of Science and Technology, Kattankulathur Kancheepuram 603203, Tamil Nadu India
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10
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Palanivel B, Mani A. Conversion of a Type-II to a Z-Scheme Heterojunction by Intercalation of a 0D Electron Mediator between the Integrative NiFe 2O 4/g-C 3N 4 Composite Nanoparticles: Boosting the Radical Production for Photo-Fenton Degradation. ACS Omega 2020; 5:19747-19759. [PMID: 32803070 PMCID: PMC7424713 DOI: 10.1021/acsomega.0c02477] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/15/2020] [Indexed: 05/21/2023]
Abstract
A carbon dot (CD)-intercalated NiFe2O4 (NFO)/graphitic carbon nitride (g-C3N4, g-CN) ternary Z-scheme heterojunction was synthesized by the facile wet chemical method and used for photo-Fenton degradation. The structural, optical, electrical, vibrational, and morphological properties of the photocatalysts were investigated through various analytical methods. The CD-intercalated heterojunction formation was analyzed by high-resolution transmission electron microscopy (HRTEM). The intercalated CD acted as an electron donor/acceptor, which converted a type-II heterojunction to a Z-scheme heterojunction. The formation of Z-scheme heterojunction was confirmed by the enormous production of radicals (hydroxyl (OH•) and superoxide (O2 -)) and the elemental trapping experiment. In particular, the heterojunction photocatalyst NFO/5g-CN/7.5CD showed the highest photo-Fenton degradation efficiency of 99% for rhodamine B (Rh B) and 93% for tetracycline (TCN) in the presence of H2O2. The charge separation and electron transport behaviors of the photocatalyst were examined by photoluminescence (PL) and photocurrent measurements. In the Z-scheme photo-Fenton system, hydroxyl and superoxide radicals played a vital role in the visible-light-driven degradation process. Hence, the prepared Z-scheme ternary photocatalyst is well suitable for wastewater treatment in practical use.
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Affiliation(s)
- Baskaran Palanivel
- Department of Physics
and Nanotechnology, SRM Institute of Science
and Technology, Kattankulathur, Kancheepuram 603203, Tamil Nadu, India
- Nanotechnology Research
Centre, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram 603203, Tamil Nadu, India
| | - Alagiri Mani
- Department of Physics
and Nanotechnology, SRM Institute of Science
and Technology, Kattankulathur, Kancheepuram 603203, Tamil Nadu, India
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11
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Ayappan C, Jayaraman V, Palanivel B, Pandikumar A, Mani A. Facile preparation of novel Sb2S3 nanoparticles/rod-like α-Ag2WO4 heterojunction photocatalysts: Continuous modulation of band structure towards the efficient removal of organic contaminants. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116302] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Jayaraman V, Ayappan C, Palanivel B, Mani A. Bridging and synergistic effect of the pyrochlore like Bi 2Zr 2O 7 structure with robust CdCuS solid solution for durable photocatalytic removal of the organic pollutants. RSC Adv 2020; 10:8880-8894. [PMID: 35496567 PMCID: PMC9050022 DOI: 10.1039/d0ra00644k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/17/2020] [Indexed: 11/21/2022] Open
Abstract
Herein, a strong redox ability photocatalyst of CdCuS solid solution composited with pyrochlore like Bi2Zr2O7 has been fabricated by the simple hydrothermal method. The robust CdCuS solid solution materials perform the supporting role to the Bi2Zr2O7 nano materials. The structural, optical, valence and vibrational states of the prepared heterostructure materials were analyzed using various characterization techniques. The photocatalytic activity of the as-synthesized Bi2Zr2O7/CdCuS heterostructure has been verified under direct solar light and ambient conditions. The synthesized Bi2Zr2O7/CdCuS nano combination exhibits a better photocatalytic activity for the removal of methylene blue and 4-nitrophenol organic probe molecules. The heterostructure formation between the samples is confirmed by HRTEM analysis. The improved rate of the photocatalytic reaction of the samples is attributed to the formation of heterostructures at the interface. The close interfacial contact between the two materials discloses the effective charge transfer, which leads to suppressed charge carrier recombination. The enhanced photo catalytic activity of redox-mediator-free-Bi2Zr2O7/CdCuS heterostructure, possibly will be credited to the robust redox ability and the several charge transfer channels in the tight contact. The chief radicals produced in the catalytic reduction reaction have been predicted by the scavenger trapping methods and the results are discussed in detail. The obtained information from this study on Bi2Zr2O7/CdCuS delivers some new visions for the design of active photocatalysts with multiple benefits. Photocatalytic degradation mechanism for CdCuS solid solution supported pyrochlore like Bi2Zr2O7.![]()
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Affiliation(s)
- Venkatesan Jayaraman
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology Kattankulathur Kancheepuram 603203 Tamil Nadu India
| | - Chinnadurai Ayappan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology Kattankulathur Kancheepuram 603203 Tamil Nadu India
| | - Baskaran Palanivel
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology Kattankulathur Kancheepuram 603203 Tamil Nadu India
| | - Alagiri Mani
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology Kattankulathur Kancheepuram 603203 Tamil Nadu India
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13
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Kalisamy P, Lallimathi M, Suryamathi M, Palanivel B, Venkatachalam M. ZnO-embedded S-doped g-C3N4 heterojunction: mediator-free Z-scheme mechanism for enhanced charge separation and photocatalytic degradation. RSC Adv 2020; 10:28365-28375. [PMID: 35519103 PMCID: PMC9055641 DOI: 10.1039/d0ra04642f] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/08/2020] [Indexed: 11/21/2022] Open
Abstract
The design of UV-visible light active photocatalysts for organic pollutant removal is a challenging task. Herein, we have developed an LED light active ZnO-embedded S-doped g-C3N4 (SCN) heterojunction by a facile sol–gel assisted calcination method. The heterojunction between ZnO and SCN nanoparticles generates a Z-scheme photocatalyst, which helps to separate the photo-induced charge carriers in the opposite direction, and is beneficial for more visible light absorption for photocatalytic dye degradation. The composite heterojunction shows better photocatalytic redox in comparison with pristine nanomaterials. The enhanced degradation efficiency is attributed to the high production rate of ˙OH (hydroxyl) radicals during the photocatalysis process, which is analyzed by the TA test and elemental trapping experiment. Hence, we hope that this Z-scheme heterojunction provides a new way to develop UV-visible light active photocatalysts for environmental remediation applications. We have developed the LED light active ZnO-embedded S-doped g-C3N4 (SCN) mediator free Z-scheme heterojunction photocatalyst for effective organic pollutant degradation.![]()
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Affiliation(s)
| | | | | | - Baskaran Palanivel
- Department of Physics and Nanotechnology
- SRM Institute of Science and Technology
- Kancheepuram
- India
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14
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Jayaraman V, Sarkar D, Rajendran R, Palanivel B, Ayappan C, Chellamuthu M, Mani A. Synergistic effect of band edge potentials on BiFeO 3/V 2O 5 composite: Enhanced photo catalytic activity. J Environ Manage 2019; 247:104-114. [PMID: 31234045 DOI: 10.1016/j.jenvman.2019.06.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 05/21/2019] [Accepted: 06/08/2019] [Indexed: 06/09/2023]
Abstract
The BiFeO3/V2O5 has been successfully synthesized by simple annealing of BiFeO3 nanoplates and V2O5 nanoflower. The phase, structural, optical properties and chemical state of the BiFeO3, V2O5 and different composition of BiFeO3/V2O5 samples were comparatively characterized by various spectroscopic and microscopic techniques. The prepared catalyst exhibits unique photo catalytic and post-oxidation/reduction ability for removal of various (MB, Phenol, CV, RhB) water organic pollutants. Compared to pure BiFeO3 and V2O5, the different Wt % of BiFeO3/V2O5 composition exhibited higher photo catalytic activity. The fortunate BiFeO3/V2O5 interface hybrid photo catalyst makes a significant impact in the enhancement of photo catalytic reaction. This remarkable efficiency could be ascribed to the synergistic effect between the V2O5 petals and BiFeO3 plates. The exceptional morphology, increased surface area, uniformity, less-agglomerated spreading could increase the ability of visible light response, which lead the improved electron transport ability and the higher charge separation. The enhanced rate of photo generated charge carriers separations were evinced by the EIS and PL spectrum measurements. The allowed radical trapping experiment divulge that the hole (h+), and super oxide radical (O2-) are the minimized effect in degradation, on the other hand hydroxyl radical (OH) is plays the foremost role and act as the active radicals in the catalytic organism. In relations of above investigation, a probable photo degradation mechanism of the as-synthesized photo catalyst is carefully explicated. This effort delivers an effective approach to design and fabricate the efficient photo catalyst through integrating of materials, which has a potential for industrial waste water purification.
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Affiliation(s)
- Venkatesan Jayaraman
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India
| | - Debabrata Sarkar
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India
| | - Ranjith Rajendran
- Advanced Materials Laboratory, Department of Physics, Periyar University, Salem, 636 011, Tamilnadu, India
| | - Baskaran Palanivel
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India
| | - Chinnadurai Ayappan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India
| | - Muthamizhchelvan Chellamuthu
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India
| | - Alagiri Mani
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, 603203, Tamil Nadu, India.
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Jayaraman V, Palanivel B, Ayappan C, Chellamuthu M, Mani A. CdZnS solid solution supported Ce2Sn2O7 pyrochlore photocatalyst that proves to be an efficient candidate towards the removal of organic pollutants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.05.047] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Matheswaran P, Thangavelu P, Palanivel B. Carbon dot sensitized integrative g-C3N4/AgCl Hybrids: An synergetic interaction for enhanced visible light driven photocatalytic process. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.05.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kalpana G, Palanivel B, Rajagopalan M. Electronic and structural properties of alkaline-earth oxides under high pressure. Phys Rev B Condens Matter 1995; 52:4-7. [PMID: 9979554 DOI: 10.1103/physrevb.52.4] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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18
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Kalpana G, Palanivel B, Rajagopalan M. Electronic structure and structural phase stability in BaS, BaSe, and BaTe. Phys Rev B Condens Matter 1994; 50:12318-12325. [PMID: 9975390 DOI: 10.1103/physrevb.50.12318] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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