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Mishra S, Sahoo NK, Sahoo PK, Sahoo S, Rout PR, Rath G. Synergistic effect of Zn-AgIn 5S 8/CdS Z-scheme heterojunction and S-doped rGO for efficient removal of chromium from contaminated water. NANOSCALE ADVANCES 2024:d4na00350k. [PMID: 39359350 PMCID: PMC11441470 DOI: 10.1039/d4na00350k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 09/10/2024] [Indexed: 10/04/2024]
Abstract
This study aimed to synthesize a Zn-AgIn5S8/CdS/SrGO nanocomposite for Cr(vi) removal from contaminated water under solar irradiation. To prevent photo corrosion of CdS, a Z-scheme heterojunction was formed between CdS and Zn-AgIn5S8. The introduction of Ag2+ plasmonic materials extended the light absorption range and stabilized the photocatalyst. Further, to improve the catalytic surface area, electrical conductivity, and minimize the rate of electron and hole pair recombination, the Zn-AgIn5S8/CdS Z-scheme heterojunction was loaded onto S-doped rGO. The morphological and structural analysis of the synthesized nanomaterials (NMs) was done using various techniques, including XRD, FT-IR, UV-vis DRS, FESEM, TEM, EDAX, photoluminescence, and Raman spectroscopy. Results revealed that the Zn-AgIn5S8/CdS/SrGO nanocomposite removed 85% of Cr(vi) at an initial concentration of 50 mg L-1 in 180 min when exposed to solar irradiation. The simulated first-order kinetic model fitted to the experimental data for Cr(vi) reduction by the nanocomposite exhibits a high correlation coefficient (R 2 ≥ 0.97) and the K app value for Zn-AgIn5S8/CdS/SrGO (K app = 0.0114 min-1) is around 1.6 times larger than that of bare ZnAgIn5S8. Moreover, Zn-AgIn5S8/CdS/SrGO heterojunctions show excellent reusability up to 4 cycles. Further, the possible photocatalytic mechanism of Cr(vi) reduction has been proposed. Therefore, the Zn-AgIn5S8/CdS/SrGO nanocomposite could serve as an alternative photocatalyst system driven by solar light for Cr(vi) reduction.
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Affiliation(s)
- Soumya Mishra
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Naresh Kumar Sahoo
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Prasanta Kumar Sahoo
- Environmental Hydrology Division, National Institute of Hydrology Jalvigyan Bhawan Roorkee 247667 India
| | - Satyanjib Sahoo
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Prangya Ranjan Rout
- Department of BioTechnology, Dr B R Ambedkar National Institute of Technology Jalandhar India
| | - Goutam Rath
- School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
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Mishra S, Sahoo NK, Sahoo PK, Sahoo S, Nayak L, Rout PR. Construction of a novel ternary synergistic CuFe 2O 4-SnO 2-rGO heterojunction for efficient removal of cyanide from contaminated water. RSC Adv 2024; 14:13850-13861. [PMID: 38681840 PMCID: PMC11047057 DOI: 10.1039/d4ra02217c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 04/08/2024] [Indexed: 05/01/2024] Open
Abstract
Many industrial effluents release cyanide, a well-known hazardous and bio-recalcitrant pollutant, and thus, the treatment of cyanide wastewater is a major challenge. In the current study, a CuFe2O4-SnO2-rGO nanocomposite was synthesized to remove cyanide from an aqueous system. The structural and morphological characterizations of the nanomaterials were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive spectra (EDX) analysis. The results revealed that almost 97.7% cyanide removal occurred using the nanocomposite at an initial concentration of 100 mg L-1 within 1 h. The experimental data were fitted to various adsorption models, among which the Langmuir model fitted the data very well, confirming the monolayer adsorption process. The kinetic investigation revealed that the cyanide adsorption process followed a pseudo-second-order kinetic model, indicating a chemisorption process with a high cyanide adsorption capacity of 114 mg g-1. The result of the intraparticulate diffusion model fitting revealed a decreasing slope value (K) from stage 1 to stage 2, indicating that external mass transfer is the predominating step. Moreover, the CuFe2O4-SnO2-rGO nanocomposite shows excellent reusability.
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Affiliation(s)
- Soumya Mishra
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Naresh Kumar Sahoo
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Prasanta Kumar Sahoo
- Environmental Hydrology Division, National Institute of Hydrology, Jal Vigyan Bhawan Roorkee 247667 India
| | - Satyanjib Sahoo
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Lopamudra Nayak
- Department of Chemistry, Environmental Science and Technology Program, Faculty of Engineering and Technology (ITER), Siksha 'O' Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Prangya Ranjan Rout
- Department of BioTechnology, Dr B R Ambedkar National Institute of Technology Jalandhar India
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Molavi H, Mirzaei K, Jafarpour E, Mohammadi A, Salimi MS, Rezakazemi M, Nadagouda MM, Aminabhavi TM. Wastewater treatment using nanodiamond and related materials. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 349:119349. [PMID: 39491939 DOI: 10.1016/j.jenvman.2023.119349] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/19/2023] [Accepted: 10/14/2023] [Indexed: 11/05/2024]
Abstract
Nanodiamonds (NDs) are zero-dimensional (0D) carbon-based nanoparticles with SP3/SP2-hybridized carbon atoms that have shown great potential in wastewater treatment areas due to their high surface area, chemical stability, and unique adsorption properties. They can efficiently remove a wide range of pollutants from water, including heavy metals, organic compounds, and dyes via various mechanisms such as electrostatic interactions, π-π stacking, and ion exchange. NDs can be functionalized following different surface chemistries, enabling tailored surface properties and enhanced pollutant adsorption capabilities. This review covers recent research on the application of nanodiamonds in wastewater treatment domain with a major emphasis on adsorption, photocatalytic degradation, and membrane separation, highlighting their promising performances, challenges, and future directions.
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Affiliation(s)
- Hossein Molavi
- Department of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), GavaZang, Zanjan 45137-66731, Iran.
| | - Kamyar Mirzaei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Erfan Jafarpour
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Ali Mohammadi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Sepehr Salimi
- Department of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), GavaZang, Zanjan 45137-66731, Iran
| | - Mashallah Rezakazemi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran.
| | - Megha M Nadagouda
- William Mason High School, 6100 Mason Montgomery Rd, Mason, OH 45040, USA
| | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, India.
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Monga D, Basu S. Novel MoS 2/C 3N 5 composites with extended spectral response towards highly efficient photocatalytic abatement of hazardous pollutants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117570. [PMID: 36907064 DOI: 10.1016/j.jenvman.2023.117570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/02/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Carbon nitride materials are one of the potential candidates for photocatalytic application. The present work demonstrates the fabrication of C3N5 catalyst from a simple, low-cost, and easily available nitrogen-containing precursor, melamine. The facile and microwave mediated method was used to prepare novel MoS2/C3N5 composites (referred to as MC) with varying weight ratios (1:1, 1:3, and 3:1). This work provided a novel strategy to improve photocatalytic activity and accordingly fabricated a potential material for effective removal of organic contaminants from water. XRD and FT-IR results affirms the cryatalinity and successful formation of the composites. The elemental composition/distribution was analysed via EDS and color mapping. The elemental oxidation state and successful charge migration in hetrostructure was confirmed by XPS findings. The catalyst's surface morphology indicates tiny MoS2 nanopetals dispersed throughout C3N5 sheets, while BET studies revealed its high surface area (34.7 m2/g). The MC catalysts were highly active in visiblelight, with an energy band gap value of 2.01 eV and a lowered recombination of charges. Because of the strong synergistic relationship (2.19) in the hybrid, excellent activity for methylene blue (MB) dye (88.9%; 0.0157 min-1) and fipronil (FIP) photodegradation (85.3%; 0.0175 min-1) with MC (3:1) catalyst under visible-light irradiation was obtained. Investigations were carried out on the effect of catalyst quantity, pH, and effectual illumination area on photoactivity. Post-photocatalytic assessment verified the high re-useable character of the catalyst with a high degradation (63% (5 mg/L MB) and 54% (600 mg/L FIP)) after five cycles. The trapping investigations demonstrated that superoxide radicals and holes were intimately enrolled in the degradation activity. Remarkable removal rates of COD (68.4%) and TOC (53.1%) demonstrate excellent photocatalytic removal of practical wastewater even without any preliminary processes. The new study, when paired with previous research, demonstrates the real-world perspective of these novel MC composites for the elimination of refractory contaminants.
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Affiliation(s)
- Divya Monga
- Department of Chemistry, RIMT University, Mandi Gobindgarh-147301, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology, Patiala-147004, India.
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Ghamarpoor R, Jamshidi M, Fallah A, Eftekharipour F. Preparation of dual-use GPTES@ZnO photocatalyst from waste warm filter cake and evaluation of its synergic photocatalytic degradation for air-water purification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118352. [PMID: 37311344 DOI: 10.1016/j.jenvman.2023.118352] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 06/15/2023]
Abstract
Organic pollutants are the most critical threats to the health of air and water resources. On this basis, fabricating a photocatalytic acrylic film with dual-use (i.e. removing benzene from air and MB/MO dyes from water) was aimed in this research. For this purpose, waste warm filter cake (WWFC) was used to extract zinc from it. Zinc element was separated from WWFC by a basic leaching method and acidified to prepare zinc oxide nanoparticles. In the following, a simple hydrothermal method was used to increase the surface functionality of the extracted ZnO nanoparticles in order to establish active reaction sites for reaction to silane coupling agent and increase in the holes that were prepared during photo-excitation. Thereafter, the nanoparticles were modified with 3-glycidoxypropyltriethoxysilane (GPTES) at different concentrations. The band gap of the modified nanoparticles decreased from 3.25 to 3.1 eV by surface modification. The photocatalytic performance of ZnO nanoparticles was assessed by degradation of MB and MO aqueous solution (50 ppm) under simulated UV/Visible irradiations. MB and MO were degraded 91 and 60% under UV light and 65 and 50% under visible light after 150 min of irradiation. The photo degradation rate increased after adding carboxy methyl cellulose (CMC) surfactant to methylene blue and adding cocamide-dea (CDE-G) surfactant to methyl orange. The results confirmed that the green surfactants improve the dispersion and surface interaction of the modified nanoparticles in the dyes solution and cause more electron charge transfer which creates effective photocatalytic sites. The prepared nanocomposite films were placed in a photo-reactor to remove gaseous benzene from air under UV/visible irradiation. Gas chromatography (GC) results showed that the modified nanoparticles removed up to 35.25 and 20.34% of benzene from air. Colorimetric analysis (ΔE*) showed that the acrylic film contained modified nanoparticles degraded 91 and 82% of MB, and 85 and 76% of MO under UV/visible lights, respectively. In the end, it can be said that these photocatalytic films are able to remove environmental pollution in air and water.
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Affiliation(s)
- Reza Ghamarpoor
- Constructional Polymers and Composites Research Lab., School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Masoud Jamshidi
- Constructional Polymers and Composites Research Lab., School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
| | - Akram Fallah
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Fatemeh Eftekharipour
- Constructional Polymers and Composites Research Lab., School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
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Jaramillo-Fierro X, León R. Effect of Doping TiO 2 NPs with Lanthanides (La, Ce and Eu) on the Adsorption and Photodegradation of Cyanide-A Comparative Study. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13061068. [PMID: 36985962 PMCID: PMC10055693 DOI: 10.3390/nano13061068] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 06/01/2023]
Abstract
Free cyanide is a highly dangerous compound for health and the environment, so treatment of cyanide-contaminated water is extremely important. In the present study, TiO2, La/TiO2, Ce/TiO2, and Eu/TiO2 nanoparticles were synthesized to assess their ability to remove free cyanide from aqueous solutions. Nanoparticles synthesized through the sol-gel method were characterized by X-ray powder diffractometry (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Fourier-transformed infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS), and specific surface area (SSA). Langmuir and Freundlich isotherm models were utilized to fit the adsorption equilibrium experimental data, and pseudo-first-order, pseudo-second-order, and intraparticle diffusion models were used to fit the adsorption kinetics experimental data. Cyanide photodegradation and the effect of reactive oxygen species (ROS) on the photocatalytic process were investigated under simulated solar light. Finally, reuse of the nanoparticles in five consecutive treatment cycles was determined. The results showed that La/TiO2 has the highest percentage of cyanide removal (98%), followed by Ce/TiO2 (92%), Eu/TiO2 (90%), and TiO2 (88%). From these results, it is suggested that La, Ce, and Eu dopants can improve the properties of TiO2 as well as its ability to remove cyanide species from aqueous solutions.
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Affiliation(s)
- Ximena Jaramillo-Fierro
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - Ricardo León
- Maestría en Química Aplicada, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
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Huang W, Li J, Xu X, Cao A, He Y, Sun M, Kang L. Controllable dispersion of cobalt phthalocyanine molecules on graphene oxide for enhanced electrocatalytic reduction of CO 2 to CO. NEW J CHEM 2022. [DOI: 10.1039/d1nj06182h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
FECO of >90% was achieved within ∼0.4 V, and the optimal FECO of >96% can be obtained at −0.9 V.
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Affiliation(s)
- Weifeng Huang
- College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Junqiang Li
- College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Xiao Xu
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Aihui Cao
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ying He
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Miao Sun
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Longtian Kang
- Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P. R. China
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