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Wantala K, Klangwichian W, Suwannaruang T, Praphatsaraphiwat S, Taksungnern R, Chirawatkul P, Kaewluan S, Shivaraju HP. In situ hydro-deoxygenation onto nickel-doped HZSM-5 zeolite catalyst for upgrading pyrolytic oil. Environ Sci Pollut Res Int 2023; 30:117829-117845. [PMID: 37875756 DOI: 10.1007/s11356-023-30528-2] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 10/13/2023] [Indexed: 10/26/2023]
Abstract
Global energy demand has drastically increased due to urbanization and industrialization; thus, developing alternative renewable energy sources is urgently required. In the present work, upgrading the pyrolytic oil (PO) derived from fresh palm fruit was performed by the catalytic in situ hydrodeoxygenation (in situ HDO) process. Preparation of nickel-doped HZSM-5 zeolite (SiO2/Al2O3 = 40) was achieved by incipient wetness impregnation techniques using different weight percents of nickel dopant into HZSM-5. Nickel-doped HZSM-5 zeolite (Ni-HZSM-5) was further subjected to chemical reduction for 5 h in the oxygen-free environment (10% H2 and 90% N2) at 550 °C. The structural properties showed a potential reduction of NiO-HZSM-5 to Ni-HZSM-5, enhancing the catalytic potential. The morphological characterizations showed spherical-shaped Ni agglomerated onto HZSM-5. Acidity and oxygen contents in the pyrolytic oil were achieved by catalyst-aided HDO process at 220 °C for 6 h using methanol as a hydrogen donor. The catalytically upgraded pyrolytic oil (UPO) was analyzed for density, HHV, CHNO, and TGA. The best upgrading oil was distilled following ASTM D86 to separate gasoline, kerosene, and diesel. The acidity, density, HHV, and viscosity were measured before and after the upgradation processes. The results showed the potential impact of Ni with 10% doped on HZSM-5 on HDO reaction and illustrated the lowest oxygen content in upgraded pyrolytic oil products. Considerable decrease in viscosity and density level indicated that in situ HDO not only reduced oxygen content but also cracked pyrolytic oil to small molecules. The distilled product of upgrading oil was higher than pyrolytic oil by approximately 15% in volume. The viscosity, density, and HHV were under standard specifications of kerosene and diesel, except for acidity. However, the acidity was reduced by over 60% compared with raw material.
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Affiliation(s)
- Kitirote Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Center for Alternative Energy Research and Development (AERD), Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Warangkana Klangwichian
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Totsaporn Suwannaruang
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Siriwan Praphatsaraphiwat
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Rangsima Taksungnern
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Prae Chirawatkul
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand
| | - Sommas Kaewluan
- Department of Mechanical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhonnayok, 26120, Thailand
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Thinley T, Prabagar JS, Yadav S, Anusha HS, Anilkumar KM, Kitirote W, Shahmoradi B, Shivaraju HP. LaNiO3-rGO perovskite interface for sustainable decontaminants of emerging concerns under visible light photocatalysis. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135413] [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: 04/07/2023]
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Suwannaruang T, Pratyanuwat A, Sinthujariwat P, Wantala K, Chirawatkul P, Junlek N, Nijpanich S, Shahmoradi B, Shivaraju HP. Dynamically driven perovskite La-Fe-modified SrTiO 3 nanocubes and their improved photoresponsive activity under visible light: influence of alkaline environment. Environ Sci Pollut Res Int 2023; 30:90298-90317. [PMID: 36357757 DOI: 10.1007/s11356-022-23977-8] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Visible-light active La-Fe-SrTiO3 (La0.01Sr0.99Fe0.01Ti0.99O3) photocatalysts were synthesized via a dynamic hydrothermal route under different NaOH concentrations (2, 3, 4, 5, and 6 M). The results showed that altering NaOH concentrations changed the physicochemical characteristics of the materials. Namely, the decrease in particle size was observed when the NaOH levels were increased. The specific surface area of the photocatalysts changed with an increased concentration of NaOH, and the maximum value was 17.10 m2/g in 5 M of NaOH. The crystal structure of all prepared samples remained unaffected when altered the NaOH concentration or when incorporated La and Fe in the lattice of SrTiO3. Namely, all samples synthesized under various NaOH concentrations crystallized and maintained in the standard cubic perovskite structure of SrTiO3. The increased NaOH concentration slightly altered the absorption wavelength towards a longer wavelength region. The La atom, replacing some Sr2+ in the structure of modified SrTiO3, was confirmed to be in the La3+ valence state. Simultaneously, Fe atoms demonstrating oxidation states of Fe3+ can also be incorporated into the SrTiO3 network. The photocatalytic degradation of ciprofloxacin antibiotic revealed that the highest performance was approximately 75% within 9 h over the La0.01Sr0.99Fe0.01Ti0.99O3 sample prepared at 5 M of NaOH via the dynamic hydrothermal process. Meanwhile, this photocatalyst also displayed greater activity than the pristine SrTiO3, the single-doped samples (SrFe0.01Ti0.99O3 and La0.01Sr0.99TiO3), and the La0.01Sr0.99Fe0.01Ti0.99O3 sample prepared through a static hydrothermal technique under the same synthesis condition.
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Affiliation(s)
- Totsaporn Suwannaruang
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Acapol Pratyanuwat
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Putichot Sinthujariwat
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Kitirote Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Research Center for Environmental and Hazardous Substance Management (EHSM), Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Prae Chirawatkul
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand
| | - Narong Junlek
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand
| | - Supinya Nijpanich
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand
| | - Behzad Shahmoradi
- Department of Environmental Health Engineering, Faculty of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Prabagar JS, Vinod D, Sneha Y, Anilkumar KM, Rtimi S, Wantala K, Shivaraju HP. Novel gC 3N 4/MgZnAl-MMO derived from LDH for solar-based photocatalytic ammonia production using atmospheric nitrogen. Environ Sci Pollut Res Int 2023; 30:90383-90396. [PMID: 36585579 DOI: 10.1007/s11356-022-24997-0] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
The development of catalysis technologies for sustainable environmental applications, especially an alternative to ammonia (NH3) production under the Haber-Bosch process, has gained a lot of scope in recent days. The current work demonstrated a green synthesis of graphitic carbon nitride (gC3N4) containing magnesium-zinc-aluminium mixed metal oxides (MgZnAl-MMO) derived from layered double hydroxide (LDH) for visible light aided catalytic production of ammonia. Pyrolysis-hydrothermal techniques were adopted for the synthesis and fabrication of the gC3N4/MgZnAl-MMO catalytic composite. Characterization results of field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), UV-visible spectroscopy, photoluminescence (PL), etc. showed the desired properties and functionalities like semi-crystalline structure with rough surface morphology that enhance the sorption reactions. Catalytic composite gC3N4/MgZnAl-MMO showed a bandgap energy of 2.16 eV that is considerably shifted toward the visible range when compared to gC3N4 (2.39 eV) and MgZnAl-MMO (2.93 eV). The results were also well complied with XPS results obtained that promote solar-based photocatalysis. The gC3N4/MgZnAl-MMO assisted photocatalytic production of NH3 in an aqueous media proved to be acceptable by the production of a maximum 47.56 μmol/L NH3 under visible spectrum employing a light emitting diode (LED) source. The results showed that the advancement of catalyst for desired functionalities and NH3 production using LED simulating solar light-aided catalysis would be an alternative to the Haber-Bosch process and solar-based sustainable processes for NH3 production.
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Affiliation(s)
- Jijoe Samuel Prabagar
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
| | - Divya Vinod
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Tumkur District, 572215, Turuvekere Taluka, Karnataka, India
| | - Yadav Sneha
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Tumkur District, 572215, Turuvekere Taluka, Karnataka, India
| | | | - Sami Rtimi
- Global Institute for Water, Environment and Health, Rue de Chantepoulet 10, Geneve, Switzerland
| | - Kitirote Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India.
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Tumkur District, 572215, Turuvekere Taluka, Karnataka, India.
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Prabagar JS, Sneha Y, Tenzin T, Shahmoradi B, Rtimi S, Wantala K, Jenkins D, Shivaraju HP. Photocatalytic transfer of aqueous nitrogen into ammonia using nickel-titanium-layered double hydroxide. Environ Sci Pollut Res Int 2023; 30:90341-90351. [PMID: 36520285 DOI: 10.1007/s11356-022-24726-7] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The development of solar-driven transfer of atmospheric nitrogen into ammonia is one of the green and sustainable strategies in industrial ammonia production. Nickel-titanium-layered double hydroxide (NiTi-LDH) was synthesised using the soft-chemical process for atmospheric nitrogen fixation application under photocatalysis in an aqueous system. NiTi-LDH was investigated using advanced characterisation techniques and confirmed the potential oxygen vacancies and/or surface defects owing to better photocatalytic activity under the solar spectrum. It also exhibited a bandgap of 2.8 eV that revealed its promising visible-light catalytic activities. A maximum of 33.52 µmol L-1 aqueous NH3 was obtained by continuous nitrogen (99.9% purity) supply into the photoreactor under an LED light source. Atmospheric nitrogen supply (≈78%) yielded 14.67 µmol L-1 aqueous NH3 within 60 min but gradually reduced to 3.6 µmol L-1 at 330 min. Interestingly, in weak acidic pH, 20.90 µmol L-1 NH3 was produced compared to 11.51 µmol L-1 NH3 in basic pH. The application of NiTi-LDH for visible-light harvesting capability and photoreduction of atmospheric N2 into NH3 thereby opens a new horizon of eco-friendly NH3 production using natural sunlight as alternative driving energy.
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Affiliation(s)
- Jijoe Samuel Prabagar
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
| | - Yadav Sneha
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli Village-572215, Dombaranahalli Post, Tumkur District, Turuvekere Taluka, Karnataka, India
| | - Thinley Tenzin
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India
| | - Behzad Shahmoradi
- Department of Environmental Health Engineering, Faculty of Health, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Sami Rtimi
- Environment and Health, Global Institute for Water, Rue de Chantepoulet 10, Geneve, Switzerland
| | - Kitirote Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - David Jenkins
- Wolfson Nanomaterials & Devices Laboratory, School of Computing, Electronics and Mathematics, Faculty of Science & Engineering, University of Plymouth, Devon, PL4 8AA, UK
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India.
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli Village-572215, Dombaranahalli Post, Tumkur District, Turuvekere Taluka, Karnataka, India.
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Sneha Y, Yashas SR, Thinley T, Prabagar Jijoe S, Puttaiah Shivaraju H. Photocatalytic degradation of lomefloxacin antibiotics using hydrothermally synthesized magnesium titanate under visible light-driven energy sources. Environ Sci Pollut Res Int 2022; 29:67969-67980. [PMID: 35524853 DOI: 10.1007/s11356-022-20540-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 01/13/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Antibiotics in water system pose a human health risk due to the rise of antibacterial activity in the environmental web. Advanced oxidation processes are the potential to become an effective treatment technology for targeting antibiotics. This study demonstrates the visible light photocatalysis of lomefloxacin using magnesium titanate (MgTiO3). The nanomaterial was subjected to computational analysis to study morphology, functional, and optical characteristics through FESEM, XRD, FTIR, BET, UV-Vis, etc. Importantly, MgTiO3 had band gap energy of 3.09 eV. The photocatalytic studies were performed to observe different parameters affecting lomefloxacin degradation such as initial concentration, catalyst dosage, and pH. The nanomaterial exhibited the maximum lomefloxacin degradation. The study revealed that 30 mg/L of catalyst was optimum to degrade 10 mg/L of lomefloxacin with 30-W LED irradiation up to 150 min. Reactive species, namely, electron, hole, hydroxyl, and superoxide radicals, comprised the primary photocatalytic mechanism for lomefloxacin degradation. Ultimately, the summative result from this study highlights the suitability of the photocatalytic system to treat persistent antibiotics in aqueous environment.
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Affiliation(s)
- Yadav Sneha
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Karnataka, 572 215, Tumkur, India
| | - Shivamurthy Ravindra Yashas
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India
| | - Tenzin Thinley
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Karnataka, 572 215, Tumkur, India
| | - Samuel Prabagar Jijoe
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Karnataka, 572 215, Tumkur, India
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Mysuru, 570 015, Karnataka, India.
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Karnataka, 572 215, Tumkur, India.
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Prabagar JS, Yashas SR, Gurupadayya B, Wantala K, Diganta DB, Shivaraju HP. Degradation of doxycycline antibiotics using lanthanum copper oxide microspheres under simulated sunlight. Environ Sci Pollut Res Int 2022; 29:57204-57214. [PMID: 35344145 DOI: 10.1007/s11356-022-19842-3] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
In this study, lanthanum copper oxide was synthesized under hydrothermal techniques and characterized for doxycycline degradation. The catalyst exhibited enhanced photocatalytic doxycycline degradation under visible light owing to its compatible bandgap energy (1.7 eV). The XRD data revealed high crystallinity of the material with no noticeable impurities. Three-dimensional microspheres of varying sizes (average diameter of 2.52 μm) were observed from SEM. EDX confirms the successful synthesis of La2CuO4. The effect of DC concentration, catalyst dosage, and initial pH on the degradation rate of DC was studied methodically. Interestingly, about 85% of doxycycline (10 mg/L) was degraded within 120 min of light-emitting diode irradiation at pH 10. Oxygen vacancies and surface defects were determined through photoluminescence spectra. The recyclability experiments suggested that the catalyst is capable of degrading DC for three consecutive runs. Radical trapping trials suggested that holes (h+), superoxide radicals (●O2-), and hydroxyl radicals (●OH) are involved in the photodegradation of DC. Herein, the novel approach of La2CuO4 synthesis and the efficient visible-light harvesting capability of as-prepared catalyst reveal the potentiality for DC degradation thereby opening a new horizon of research employing La2CuO4 used for various environmental applications.
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Affiliation(s)
- Jijoe Samuel Prabagar
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru-570015, Mysuru, India
- Center for Water, Food and Energy, Dombaranahalli Post, GREENS Trust, Turuvekere Taluka, Tumkur District, Harikaranahalli, Karnataka, India, 572215
| | - Shivamurthy Ravindra Yashas
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru-570015, Mysuru, India
| | - Bannimath Gurupadayya
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru-570015, Mysuru, India
| | - Kitirote Wantala
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand
| | - Das Bhusan Diganta
- Department of Chemical Engineering, School of AACME, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru-570015, Mysuru, India.
- Center for Water, Food and Energy, Dombaranahalli Post, GREENS Trust, Turuvekere Taluka, Tumkur District, Harikaranahalli, Karnataka, India, 572215.
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Prommarach T, Pholsen S, Shivaraju HP, Chareonsudjai P. Growth and biosorption of Purple guinea and Ruzi grasses in arsenic contaminated soils. Environ Monit Assess 2022; 194:85. [PMID: 35018529 DOI: 10.1007/s10661-022-09756-5] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
Increasing mining and industrial discharge of untreated wastewater, as well as excessive use of fertilizers for agricultural purposes, and heavy metal contamination in soil have become one of the serious environmental problems worldwide. In the present study, pot experiments were conducted to evaluate the influence of arsenic contamination and other factors on the growth and development of local forage grasses like Purple guinea and Ruzi grasses under controlled conditions. Influence of arsenic concentration, soil properties, and fertilizers on biosorption and withstanding potential of grasses was studied using model soil and real-time arsenic-contaminated mine soil. High arsenic contents in soil significantly affected the growth as well as biomass production of grasses and declined the overall biomass production concerning exposure durations. Purple guinea and Ruzi grasses showed growth tolerance in arsenic-contaminated soils with concentrations of 100 and 150 mg/kg respectively. Grass species, soil compositions, and properties, fertilizers, growth duration, etc. potentially influenced arsenic accumulation in grasses. Both local forage grasses showed <1 bio-accumulation factor (BAF) and bio-concentration factor (BCF) after 45 days that indicates the minimum harvesting time of 45 days, and biosorption rate was found significant to the exposure duration. Maximum translocation factor (TF) values observed in Purple guinea and Ruzi grasses were 0.65 and 0.95, respectively which are < 1, therefore, these local forage grasses could be labeled as arsenic-metallophytes and ability to tolerate high levels of heavy metals without much biosorption. The results confirmed that local forage grasses have much growth tolerance potential against arsenic in real-time mine soil with desired fertilizers and these species could be used for sustainable management of ecological health of the Thung Kum gold mine area in Thailand.
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Affiliation(s)
- Thanyaporn Prommarach
- Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Suradej Pholsen
- Department of Plant Science and Agricultural Resource, Faculty of Agriculture, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, JSS Academy of Higher Education and Research, Mysuru, 570015, India.
- Centre for Water, Food & Energy, The GREENS Trust, Harikaranahalli Village, Dombaranahalli Post, 572215, Turuvekere Taluk, Tumkur District, India.
| | - Pisit Chareonsudjai
- Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Biofilm Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Prakruthi K, Ujwal MP, Yashas SR, Mahesh B, Kumara Swamy N, Shivaraju HP. Recent advances in photocatalytic remediation of emerging organic pollutants using semiconducting metal oxides: an overview. Environ Sci Pollut Res Int 2022; 29:4930-4957. [PMID: 34797548 DOI: 10.1007/s11356-021-17361-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 09/14/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
Many untreated and partly treated wastewater from the home and commercial resources is being discharged into the aquatic environment these days, which contains numerous unknown and complex natural and inorganic compounds. These compounds tend to persist, initiating severe environmental problems, which affect human health. Conventionally, physicochemical treatment methods were adopted to remove such complex organic chemicals, but they suffer from critical limitations. Over time, photocatalysis, an advanced oxidation process, has gained its position for its efficient and fair performance against emerging organic pollutant decontamination. Typically, photocatalysis is a green technology to decompose organics under UV/visible light at ambient conditions. Semiconducting nanometal oxides have emerged as pioneering photocatalysts because of large active surface sites, flexible oxidation states, various morphologies, and easy preparation. The current review presents an overview of emerging organic pollutants and their effects, advanced oxidation processes, photocatalytic mechanism, types of photocatalysts, photocatalyst support materials, and methods for improving photodegradation efficiency on the degradation of complex emerging organic pollutants. In addition, the recent reports of metal-oxide-driven photocatalytic remediation of emerging organic pollutants are presented in brief. This review is anticipated to reach a broader scientific community to understand the first principles of photocatalysis and review the recent advancements in this field.
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Affiliation(s)
- Komargoud Prakruthi
- Department of Environmental Engineering, JSS Science and Technology University, Mysuru , 570006, India
| | | | - Shivamurthy Ravindra Yashas
- Department of Environmental Science, Faculty of Natural Science, JSS Academy of Higher Education and Research, Mysuru, 570015, India
| | - Basavaraju Mahesh
- Department of Chemistry, JSS Academy of Technical Education, Dr. Vishnuvardhan Road, Bengaluru, 560060, India
| | - Ningappa Kumara Swamy
- Department of Chemistry, JSS Science and Technology University, Mysuru, 570006, India.
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Shivaraju HP, Yashas SR, Harini R. Quantification, distribution, and effects of di (2-ethylhexyl) phthalate contamination: Risk analysis and mitigation strategies in urban environment. Water Environ Res 2021; 93:940-952. [PMID: 33247972 DOI: 10.1002/wer.1486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/21/2020] [Revised: 10/28/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Phthalate acid ester, di (2-ethylhexyl) phthalate (DEHP) is ubiquitously detected contaminant of emerging concerns (CECs) in all the environmental samples. The present study attempted to understand the fate and transport of DEHP in urban areas by evaluating the quantities, distribution, risk, and effects in the Mysuru city, India. The study is anticipated to serve as a vital document for local and national regulators to frame a robust DEHP management plan and mitigate the risks associated. Liquid-liquid microextraction followed by gas chromatographic analysis was adopted to determine the concentrations of DEHP. The risk quotient method was adopted to assess potential risk, and a conceptual planning model framework was designed to mitigate the DEHP contamination. The municipal wastewater contained 115 ± 9.2 μg/L, whereas treated municipal wastewater showed 95 ± 7.6 μg/L DEHP that was attributed to the inefficiency of the treatment plant. Further, sediments in surface water, as well as groundwater samples of the study area, showed 8 ± 0.64 to 12 ± 0.96 μg/L and 32 ± 2.56 to 40 ± 3.2 μg/kg of DEHP, respectively. The risk quotient of 19.17 for samples in around treatment indicated highest risk, whereas groundwater samples had a risk quotient of 1-2 indicating relative risk to aquatic organisms. In addition, the study highlighted the source, possible entry pathways, and management strategies including treatment aspects to draw an understanding of the distribution and potential ecological imbalances with contamination of DEHP in the urban sector. PRACTITIONER POINTS: Understand the fate and transportation of DEHP in urban wastewater. Primary investigation and assessment to possible health and environmental risks of DEHP contamination in urban wastewater. Revealed the associated health risks and proposed possible management strategies.
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Affiliation(s)
| | - Shivamurthy Ravindra Yashas
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education & Research, Mysuru, India
| | - Revanna Harini
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli Village, Tumkur, India
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Yashas SR, Shivaraju HP, Pema G, Kumara Swamy N, Namratha K, Gurupadayya B, Madhusudan P. Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride. Environ Sci Pollut Res Int 2021; 28:4778-4789. [PMID: 32949361 DOI: 10.1007/s11356-020-10813-0] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
The present study focuses on the sonochemical synthesis of graphitic carbon nitride-manganese oxide (GCN/MnO2) nanocomposite for photocatalytic degradation of an environmentally hazardous pharmaceutical compound, tetracycline hydrochloride (TcH). The sonochemical synthesis aided in tailoring the morphology of GCN/MnO2. The characterization results of SEM/FESEM, XRD, FTIR, UV-Vis spectra, EIS, CV, etc., revealed on the morphology, composition, crystallinity, and other photo-electro-intrinsic properties of the materials. The synergy of GCN and MnO2 results in rapid electron transfer, efficient visible-light absorption, and slower electron-hole pair recombination through its photo-responsive traits against TcH. It was noted that ~ 93% TcH (20 mg L-1) degradation was achieved for 30-mg catalyst dose under light-emitting diode (LED) irradiation (9 W, 220 V) in 135-min duration. The TcH mineralization results were well fit to pseudo-first-order kinetics with a rate constant of 0.02 min-1 (R2 = 0.994). In addition, the composite possessed fair reusability for consequent cycles. Hence, the as-synthesized composite applied for photocatalysis and photoelectrocatalysis fosters a fit-for-purpose and reliable system in the decontamination of TcH in environmental samples. Graphical Abstract.
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Affiliation(s)
- Shivamurthy Ravindra Yashas
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Sri Shivarathreshwaranagar, Mysuru, Karnataka, 570015, India
| | - Harikaranahalli Puttaiah Shivaraju
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Sri Shivarathreshwaranagar, Mysuru, Karnataka, 570015, India.
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Tumkur District, Karnataka, 572215, India.
| | - Gyaltsen Pema
- Department of Environmental Sciences, Faculty of Natural Sciences, JSS Academy of Higher Education and Research, Sri Shivarathreshwaranagar, Mysuru, Karnataka, 570015, India
- Center for Water, Food and Energy, GREENS Trust, Harikaranahalli, Dombaranahalli Post, Turuvekere Taluka, Tumkur District, Karnataka, 572215, India
| | - Ningappa Kumara Swamy
- Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru, 570006, India
| | - Keerthiraj Namratha
- Center for Materials Science and Technology and DOS in Earth Science, University of Mysore, Mysuru, 570006, India
| | - Bannimath Gurupadayya
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, 570015, India
| | - Puttaswamy Madhusudan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, People's Republic of China
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Shivaraju HP, Byrappa K. The role of hydrothermally prepared supported photocatalytic composite in organic micro-pollutants removal from the water. J Environ Sci Eng 2012; 54:353-364. [PMID: 24749194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work deals with the non-biodegradable micro-pollutants degradation by supported photocatalyst based heterogeneous photocatalytic reaction. TiO2 based supported photocatalyst was prepared by the hydrothermal technique to improve the photocatalytic performance along with easy recovery of suspended photocatalyst from aqueous medium after photoreaction. TO2 deposited calcium alumino-silicate beads (CASB) supports were prepared under mild hydrothermal conditions (Temparature-200 degrees C, Duration-24 h). In the present study, industrial dyes such as Amaranth and Brilliant Yellow were used as model micro-pollutants in aqueous solution. A real time pesticide industrial effluent was tested for its photocatalytic removal of organic pollutants using TO2 deposited CASB supported photocatalytic composite as an effective photocatalyst. Photocatalytic degradation of micro-pollutants present in aqueous medium was carried out in a batch photoreactor, at atmospheric pressure and temperature (28 degrees C). The influence of different light sources, irradiation time, catalyst load and catalytic performance is discussed. The photocatalytic degradation of micro-pollutants in aqueous medium was evaluated by determination of COD and %T. Easy separation and recovery of suspended photocatalysts from aqueous solution is the major advantage of hydrothermally prepared supported photocatalytic composite.
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