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GokulaKrishnan SA, Arthanareeswaran G, Devi DR. Bi 2WO 6 nanoparticles anchored on membrane by grafting via in-situ polymerization for the treatment of antibiotic and pesticides wastewater. CHEMOSPHERE 2024; 351:141214. [PMID: 38246504 DOI: 10.1016/j.chemosphere.2024.141214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/28/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Antibiotics, natural organic matter, and pesticides are detected in the ecosystem's domestic water, surface water, and groundwater and are largely applied in pharmaceuticals and agriculture. Polymeric membranes are effectively remove the various pollutants in the water bodies, but fouling is one of the major limitations of commercial membranes. Herein, we modified the polymeric membrane surface with inorganic photocatalytic nanoparticles. In this work, the hydrothermal method is used for the synthesis of Bi2WO6 nanoparticles and as-synthesized nanoparticles grafted onto the various polymeric membranes, including polyetherimide (PEI), cellulose acetate (CA), polyvinylidene fluoride (PVDF), and polysulfone (PSF). The functional group studies confirmed the existence of nanoparticles and hydroxyl groups on the hybrid membrane. Further, finger-like voids, top-surface morphology, and roughness on the membrane surface were validated via Field Emission Scanning Electron Microscopy (FESEM) and Atomic force microscopy (AFM), respectively. The significant rejection of tetracycline, humic acid, and fulvic acid + atrazine was noted with the synthesized membranes in the following order: PVDF (81.1%, 78.8%, 80.6%) > CA (70.1%, 69.3%, 71.7%) > PSF (72.5%, 73.6%, 67.1%) > PEI (75.9%, 65.5%, 63.7%). The photodegradation efficiency of hybrid membranes against tetracycline, humic acid, and fulvic acid + atrazine was observed in the order: PEI (28.5%, 25.8%, 30.2%) < CA (46.5%, 42.4%, 40.5%) < PSF (46.9%, 37.7%, 44.7%) < PVDF (67.7%, 62.1%, 64.3%). These membranes exhibit an outstanding permeate flux recovery ratio to the neat membrane. Therefore, the grafting of Bi2WO6 nanoparticles creates a potential bonding with PVDF membranes than other polymeric membranes, thus exhibiting an outstanding rejection than hybrid and neat membranes.
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Affiliation(s)
- S A GokulaKrishnan
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology Tiruchirappalli, TamilNadu, 620015, India.
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology Tiruchirappalli, TamilNadu, 620015, India.
| | - D Ramya Devi
- Department of Chemical Engineering, Dhanalakshmi Srinivasan Engineering College, Perambalur, TamilNadu, 621 212, India
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Jayavelu Y, Maharana G, Rajender G, Muniramaiah R, Divyadharshini S, Baby BH, Kovendhan M, Fernandes JM, Joseph DP. Defect-mediated time-efficient photocatalytic degradation of methylene blue and ciprofloxacin using tungsten-incorporated ternary perovskite BaSnO 3 nanoparticles. CHEMOSPHERE 2024; 351:141128. [PMID: 38185424 DOI: 10.1016/j.chemosphere.2024.141128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/10/2023] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
Photocatalytic water purification has been extensively explored for its economic, eco-friendly, and sustainable aspects. In this study, tungsten (W) incorporated BaSn1-xWxO3 (x = 0 to 0.05) nanoparticles synthesized by facile hydrogen peroxide precipitation route has been demonstrated for photocatalytic degradation of methylene blue (MB) dye and ciprofloxacin (CIP) antibiotic. The structural analysis indicates the presence of hybrid composite-like nanostructures with reduced crystallinity. Optical studies reveal blueshift in bandgap and decrease in oxygen vacancy defects upon W-incorporation. Pure BaSnO3 shows overall enhanced photocatalytic activity towards MB (90.22%) and CIP (78.12%) after 240 min of white LED light and sunlight irradiation respectively. The 2 % W-incorporated BaSnO3 shows superior photocatalytic degradation of MB (26.89%) and CIP (45.14%) within first 30 min of irradiation confirming the presence of W to be beneficial in the process. The free radical study revealed the dominant role of reactive hole (h+) and oxygen radical (O2•-) species during photodegradation and their intermediates are investigated to elucidate the degradation mechanism of MB within 30 min of irradiation. This study is promising towards developing defect mediated and time-efficient photocatalysts for environmental remediation.
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Affiliation(s)
- Yuvashree Jayavelu
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India
| | - Gouranga Maharana
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India
| | - Gone Rajender
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India
| | - Reddivari Muniramaiah
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India; Department of Physics, Indian Institute of Technology, Kanpur, Uttar Pradesh State, 208016, India
| | - S Divyadharshini
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Benjamin Hudson Baby
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India
| | - M Kovendhan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Jean Maria Fernandes
- Department of Physics, National Institute of Technology Karnataka, Surathkal, 575025, India
| | - D Paul Joseph
- Department of Physics, National Institute of Technology, Warangal, Telangana State, 506004, India.
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Amjad M, Mohyuddin A, Ulfat W, Goh HH, Dzarfan Othman MH, Kurniawan TA. UV-blocking and photocatalytic properties of Ag-coated cotton fabrics with Si binders for photo-degradation of recalcitrant dyes in aqueous solutions under sunlight. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120287. [PMID: 38335595 DOI: 10.1016/j.jenvman.2024.120287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/05/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Textile wastewater laden with dyes has emerged as a source of water pollution. This possesses a challenge in its effective treatment using a single functional material. In respond to this technological constraint, this work presents multifunctional cotton fabrics (CFs) within a single, streamlined preparation process. This approach utilizes the adherence of Ag NPs (nanoparticles) using Si binder on the surface of CFs, resulting in Ag-coated CFs through a pad dry method. The prepared samples were characterized using scanning electron microscope-energy dispersive X-ray electroscopy (SEM-EDS), thermal gravimetric analysis (TGA), Fourier transformation infrared (FT-IR). It was found that the FT-IR spectra of Ag NPs-coated CFs had peaks appear at 3400, 2900, and 1200 cm-1, implying the stretching vibrations of O-H, C-H, and C-O, respectively. Based on the EDX analysis, the presence of C, O, and Ag related to the coated CFs were detected. After coating the CFs with varying concentrations of Ag NPs (1%, 2% and 3% (w/w)), they were used to remove dyes. Under the same concentration of 10 mg/L and optimized pH 7.5 and 2 h of reaction time, 3% (w/w) Ag-coated CFs exhibited a substantial MB degradation of 98 %, while removing 95% of methyl orange, 85% of rhodamine B, and 96% of Congo red, respectively, following 2 h of Vis exposure. Ag NPs had a strong absorption at 420 nm with 2.51 eV of energy band gap. Under UV irradiation, electrons excited and produced free radicals that promoted dyes photodegradation. The oxidation by-products included p-dihydroxybenzene and succinic acid. Spent Ag-coated CFs attained 98% of regeneration efficiency. The utilization of Ag-coated CFs as a photocatalyst facilitated treated effluents to meet the required discharge standard of lower than 1 mg/L mandated by national legislation. The integration of multifunctional CFs in the treatment system presents a new option for tackling water pollution due to dyes.
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Affiliation(s)
- Muhammad Amjad
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Ayesha Mohyuddin
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, Pakistan.
| | - Wajad Ulfat
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Hui Hwang Goh
- School of Electrical Engineering, Guangxi University, Nanning, China
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor Bahru, Malaysia
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Nabizadeh R, Amrollahi R, Ghafary B, Norouzian Alam S. Influence of ozone supply mode and aeration on photocatalytic ozonation of organic pollutants in wastewater using TiO 2 and ZnO nanoparticles. Heliyon 2023; 9:e22854. [PMID: 38125433 PMCID: PMC10730601 DOI: 10.1016/j.heliyon.2023.e22854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/30/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Photocatalytic ozonation, which combines the effects of lighting and ozonation, has been shown to enhance the decolorization and degradation of organic pollutants in wastewater. Dye solutions with concentrations of 10 ppm for both methylene blue and methyl orange dyes were used. The influence of ozoneation on the performance of photocatalytic activity of TiO2 and ZnO nanoparticles for the removal of organic dyes from aqueous solutions was investigated. To evaluate their efficacy for the removal of methylene blue and methyl orange dyes from aqueous solutions, the photocatalysts were exposed to UV light for 90 min, with ozone supplied either intermittently or continuously by an SDBD cold plasma reactor. The photocatalysts utilized in this study were characterized using SEM and XRD techniques. The degree of color degradation was determined using UV-Vis spectroscopy. The results demonstrate that TiO2 and ZnO nanoparticles exhibit different degrees of photocatalytic activity for the two dyes. The addition of ozone was found to enhance both the color degradation and mineralization rates of the pollutants, with intermittent ozonation proving more effective than continuous ozonation. The most significant color degradation results were obtained using TiO2 nanoparticles with intermittent ozonation for methylene blue dye (97 %) and ZnO nanoparticles with intermittent ozonation for methyl orange dye (40 %). Overall, this study provides evidence that photocatalytic ozonation represents a promising technique for water treatment.
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Affiliation(s)
- Reyhaneh Nabizadeh
- Physics Department, Iran University of Science and Technology, Tehran, Iran
- Optoelectronics Research Center, Iran University of Science and Technology, Tehran, Iran
| | - Rezvaneh Amrollahi
- Physics Department, Iran University of Science and Technology, Tehran, Iran
| | - Bijan Ghafary
- Physics Department, Iran University of Science and Technology, Tehran, Iran
| | - Shahab Norouzian Alam
- Physics Department, Iran University of Science and Technology, Tehran, Iran
- Optoelectronics Research Center, Iran University of Science and Technology, Tehran, Iran
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Mulani SR, Bimli S, Choudhary E, Bunkar R, Kshirsagar UA, Devan RS. Cationic and anionic cross-assisted synergistic photocatalytic removal of binary organic dye mixture using Ni-doped perovskite oxide. CHEMOSPHERE 2023; 340:139890. [PMID: 37619747 DOI: 10.1016/j.chemosphere.2023.139890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
Organic dyes present in industrial wastewater are the major contributor to water pollution, which harm human health and the environment. Photocatalytic dye degradation is an effective strategy for water remediation by converting these organic dyes waste into non-harmful by-products. Therefore, in this study, Ni-doped LaFeO3 (NLFO) perovskite nanoparticles were extensively explored for photocatalytic degradation of cationic and anionic dyes and their mixture. The NLFO nanoparticles were successfully synthesized by surfactant assisted hydrothermal method under controlled Ni doping. The X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) revealed the variation in size (40-70 nm) of orthorhombic crystalline LFO nanoparticles with Ni doping and hence the size of microspheres (0.78. to 1.78 μm). The kinetic studies revealed that the LaFe0·6Ni0·4O3 performed well by providing degradation efficiency of 99.2% in 210 min, 99.1% in 100 min, and 98.4% in 70 min for Crystal Violet (CV), Congo Red (CR), and their mixture with rate constant of 0.019, 0.039, and 0.055 min-1 respectively. The radical scavenger tests indicated the synergetic contributions of O2- and •OH- active radicals in faster degradation of CV and CR dye mixture. The stepwise fragmentation of dye molecule during the photocatalytic degradation identified from the LCMS indicates the degradation of CV dye through de-alkylation and benzene ring breaking, whereas azo bond cleavage and oxidation lead to low molecular weight intermediates for CR dye, which all together helped to degrade their dye mixture (50 mg L-1 and 100 mg L-1) in significantly lesser time (70 min). Overall, the Ni-doped LFO microsphere consisting of nanoparticles acts as a superior catalyst for the more efficient and faster degradation of binary dye mixture.
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Affiliation(s)
- Sameena R Mulani
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Santosh Bimli
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Ekta Choudhary
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, 453552, India; Department of Physics, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Rajendra Bunkar
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, 453552, India; Defence R&D Establishment, Jhansi Road, Gwalior, 474002, MP, India
| | - Umesh A Kshirsagar
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Rupesh S Devan
- Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, 453552, India; Centre for Electric Vehicle and Intelligent Transport Systems, Indian Institute of Technology Indore, Simrol, Indore, 453552, India.
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Mehmood S, Haq F, Kiran M, Shaaban IA, Assiri MA, Haroon M, Yasin M, Farid A, Nawaz A, Akbar MM, El-Bahy ZM. Sustainable remediation of dye-contaminated wastewater using novel cross-linked Hex-CCP-co-PPT microspheres. CHEMOSPHERE 2023; 339:139637. [PMID: 37499806 DOI: 10.1016/j.chemosphere.2023.139637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/19/2023] [Accepted: 07/22/2023] [Indexed: 07/29/2023]
Abstract
The presence of dyes in contaminated water poses substantial dangers to the health of both humans and aquatic life. A process called precipitation polymerization was used to create unique cross-linked hexa-chlorocyclotriphosphazene-co-phenolphthalein (Hex-CCP-co-PPT) microspheres for the purpose of this research. Advanced methods such as X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential thermogravimetry (DTG) were used to characterise these microspheres. In a simulated solution, the performance of Hex-CCP-co-PPTs as a sorbent for removing MB dye was investigated, and the results showed an unprecedentedly high removal rate of 88.4% for MB. Temperature of 25 °C, a Hex-CCP-co-PPTs dose of 40 mg, an MB concentration of 20 ppm, an MB solution volume of 20 mL, a contact time of 40 min, and a pH of 9 were found to be the optimal experimental conditions. According to the results of the kinetic and adsorption analyses, the PSO and Langmuir adsorption models are the best ones to use. These models favour the chemi-sorption nature and mono-layered adsorption of MB in comparison to Hex-CCP-co-PPTs. Importantly, the thermodynamic analysis demonstrated that the process of removing MB by utilizing Hex-CCP-co-PPTs was endothermic and occurred spontaneously. These findings highlight the potential application of Hex-CCP-co-PPT microspheres in Algal Membrane Bioreactors (AMBRs) for the efficient and sustainable removal of dye from wastewater. This would contribute to the protection of ecosystems as well as the public's health.
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Affiliation(s)
- Sahid Mehmood
- Department of Chemistry, Hazara University, Mansehra, KPK, 21300, Pakistan
| | - Fazal Haq
- Institute of Chemical Sciences, Gomal University, D.I.Khan, 29050, Pakistan
| | - Mehwish Kiran
- Faculty of Agriculture, Gomal University, D.I.Khan, 29050, Pakistan
| | - Ibrahim A Shaaban
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Muhammad Haroon
- Department of Chemistry, University of Turbat, Balochistan, 92600, Pakistan
| | - Muhammad Yasin
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D.I.Khan, 29050, Pakistan
| | - Arshad Farid
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D.I.Khan, 29050, Pakistan.
| | - Alam Nawaz
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
| | - Majid Majeed Akbar
- Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, 54000, Pakistan
| | - Zeinhom M El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt.
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Wang F, Zhang W, Liu H, Cao R, Chen M. Roles of CeO 2 in preparing Ce-doped CdIn 2S 4 with boosted photocatalytic degradation performance for methyl orange and tetracycline hydrochloride. CHEMOSPHERE 2023; 338:139574. [PMID: 37479000 DOI: 10.1016/j.chemosphere.2023.139574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/05/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
Element doping is considered as a feasible strategy to develop efficient photocatalysts. In this study, a Ce-doped CdIn2S4 photocatalyst was prepared through a modified coprecipitation method. During the synthesis of Ce-doped CdIn2S4, the CeO2 nanorods were gradually reduced by the decomposition products of thioacetamide (TAA), and mainly existed as Ce(III) in the supernatant. This resulted in a large increase in the specific surface area of the as-obtained products, providing more exposed active sites for the reactant. Additionally, a trace amount of Ce was doped into the lattice of the CdIn2S4, resulting in a significant effect on the band structure. By tracing the roles of CeO2 during the synthesis process, a possible reaction mechanism was proposed. Benefiting from the synergistic advantages of the structural and compositional features, the optimal sample showed enhanced photocatalytic activities for the degradation of methyl orange (94.6% within 25 min) and tetracycline hydrochloride (85.6% within 120 min). The degradation rates were 13.3 times and 2.7 times higher than that of pristine CdIn2S4. This work may provide a strategy for designing metal element doped photocatalysts with good activity for pollutant removal.
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Affiliation(s)
- Fengjue Wang
- Department of Materials Science, Fudan University, Shanghai, 200433, PR China
| | - Wenjun Zhang
- Department of Materials Science, Fudan University, Shanghai, 200433, PR China
| | - Han Liu
- Department of Materials Science, Fudan University, Shanghai, 200433, PR China
| | - Ronggen Cao
- Department of Materials Science, Fudan University, Shanghai, 200433, PR China
| | - Meng Chen
- Department of Materials Science, Fudan University, Shanghai, 200433, PR China.
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Dang J, Pei W, Hu F, Yu Z, Zhao S, Hu J, Liu J, Zhang D, Jing Z, Lei X. Photocatalytic Degradation and Toxicity Analysis of Sulfamethoxazole using TiO 2/BC. TOXICS 2023; 11:818. [PMID: 37888669 PMCID: PMC10610555 DOI: 10.3390/toxics11100818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 10/28/2023]
Abstract
Sulfonamide antibiotics in the environment not only disrupt the ecological balance but can also enter the human or animal body in various forms and cause harm. Therefore, exploring efficient methods to degrade sulfonamide antibiotics is crucial. In this study, we prepared biochar (BC) using corn straw, and TiO2/BC was obtained by doping different proportions of TiO2 into biochar with varying carbonization temperatures using the sol-gel method. Next, we investigated the degradation of sulfamethoxazole (SMX) in solution using the generated TiO2/BC under ultraviolet irradiation and studied the effects of various experimental parameters, such as the type of composite material, composite material addition, solution pH, and initial antibiotic concentration on SMX degradation. Under an initial SMX concentration of 30 mg/L, the composite with the best photocatalytic degradation performance was TiO2/BC-5-300 (i.e., 5 mL of TiO2 doping; 300 °C calcination temperature), with an addition amount of 0.02 g and a solution pH of 3. The degradation efficiency increased from 22.3% to 89%, and the most significant degradation effect occurred during the initial stage of photocatalytic degradation. In the TiO2/BC-5-300 treated SMX solution, the average rhizome length of bean sprouts was significantly higher than that of the untreated SMX solution and slightly lower than that of the deionized aqueous solution (3.05 cm < 3.85 cm < 4.05 cm). This confirmed that the photocatalytic degradation of SMX by the composite was effective and could efficiently reduce its impact on the growth of bean sprouts. This study provides essential data and theoretical support for using TiO2/BC in the treatment of antibiotic-contaminated wastewater.
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Affiliation(s)
- Jiatao Dang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (J.D.); (S.Z.)
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Wenjun Pei
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Fumeng Hu
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Zaihui Yu
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Shuheng Zhao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (J.D.); (S.Z.)
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Jianjun Hu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (J.D.); (S.Z.)
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Jiuli Liu
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Dongliang Zhang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Zhixuan Jing
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
| | - Xuan Lei
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China; (W.P.); (F.H.); (Z.Y.); (J.L.); (D.Z.); (Z.J.); (X.L.)
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Abdel-Fatah AS, Tohamy HAS, Ahmed SI, Youssef MA, Mabrouk MR, Kamel S, Samhan FA, El-Gendi A. Anatase-cellulose acetate for reinforced desalination membrane with antibacterial properties. BMC Chem 2023; 17:112. [PMID: 37700386 PMCID: PMC10496367 DOI: 10.1186/s13065-023-01013-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/01/2023] [Indexed: 09/14/2023] Open
Abstract
This study aimed to prepare antifouling and highly mechanical strengthening membranes for brackish and underground water desalination. It was designed from cellulose acetate (CA) loaded anatase. Anatase was prepared from tetra-iso-propylorthotitanate and carboxymethyl cellulose. Different concentrations of anatase (0.2, 0.3, 0.5, 0.6, 0.7, and 0.8)% were loaded onto CA during the inversion phase preparation of the membranes. The prepared membranes were characterized using Fourier Transform Infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM & EDX), mechanical properties, swelling ratio, porosity determination, and ion release. The analysis confirmed the formation of anatase on the surface and inside the macro-voids of the membrane. Furthermore, anatase loading improved the CA membrane's mechanical properties and decreased its swelling and porosity rate. Also, CA-loaded anatase membranes displayed a significant antibacterial potential against Gram-positive and Gram-negative bacteria. The results showed that the salt rejection of the CA/anatase films as-prepared varies considerably with the addition of nanomaterial, rising from 46%:92% with the prepared membranes under the 10-bar operation condition and 5 g/L NaCl input concentration. It can be concluded that the prepared CA-loaded anatase membranes have high mechanical properties that are safe, economical, available, and can stop membrane biofouling.
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Affiliation(s)
- Ahmed S Abdel-Fatah
- Water Quality Audit Department, Egyptian Water and Wastewater Regulatory Agency, New Cairo City, Egypt
| | | | - Sayed I Ahmed
- Faculty of Engineering, Public Works Dept., Ain Shams University, Abbasseya, Cairo, 11535, Egypt
| | - Mohamed A Youssef
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mohamed R Mabrouk
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - Samir Kamel
- Cellulose and Paper Department, National Research Centre, Cairo, 12622, Egypt
| | - Farag A Samhan
- Environmental and Climate Change Research Institute, National Research Centre, Cairo, 12622, Egypt.
| | - Ayman El-Gendi
- Chemical Engineering and Pilot Plant Department, Engineering Research and Renewable Energy Institute, National Research Centre, Cairo, 12622, Egypt
- Canal High Institute of Engineering and Technology, Ministry of High Education, Suez, Egypt
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Barzegar Y, Gorelova I, Bellini F, D’Ascenzo F. Drinking Water Quality Assessment Using a Fuzzy Inference System Method: A Case Study of Rome (Italy). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6522. [PMID: 37569062 PMCID: PMC10418417 DOI: 10.3390/ijerph20156522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023]
Abstract
Drinking water quality assessment is a major issue today, as it is crucial to supply safe drinking water to ensure the well-being of society. Predicting drinking water quality helps strengthen water management and fight water pollution; technologies and practices for drinking water quality assessment are continuously improving; artificial intelligence methods prove their efficiency in this domain. This research effort seeks a hierarchical fuzzy model for predicting drinking water quality in Rome (Italy). The Mamdani fuzzy inference system is applied with different defuzzification methods. The proposed model includes three fuzzy intermediate models and one fuzzy final model. Each model consists of three input parameters and 27 fuzzy rules. A water quality assessment model is developed with a dataset that considers nine parameters (alkalinity, hardness, pH, Ca, Mg, fluoride, sulphate, nitrates, and iron). These nine parameters of drinking water are anticipated to be within the acceptable limits set to protect human health. Fuzzy-logic-based methods have been demonstrated to be appropriate to address uncertainty and subjectivity in drinking water quality assessment; they are an effective method for managing complicated, uncertain water systems and predicting drinking water quality. The proposed method can provide an effective solution for complex systems; this method can be modified easily to improve performance.
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Affiliation(s)
| | - Irina Gorelova
- Department of Management, Sapienza University of Rome, 00161 Rome, Italy; (Y.B.); (F.B.); (F.D.)
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