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Zalke AA, Zaidi Z, Sorokhaibam LG. Desulfurization of simulated and commercial liquid fuel on nano-ZnO fabricated walnut shells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-35177-7. [PMID: 39390305 DOI: 10.1007/s11356-024-35177-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 09/24/2024] [Indexed: 10/12/2024]
Abstract
The current investigation involved the development of activated carbon, juglans regia activated carbon (JRACs), from walnut shells, scientifically known as Juglans regia. The ZnO nanorods were loaded on the activated carbon and referred to as ZnO@JRACs. Desulfurization efficiency was assessed through batch adsorption and compared to commercial activated carbon known as DARCO. The materials were characterized using PXRD (powder X-ray diffraction), FTIR (Fourier-transform infrared spectroscopy), ICP-AES (inductively coupled plasma atomic emission spectroscopy), BET (Brunauer-Emmett-Teller) surface area analysis, TEM (transmission electron microscopy) imaging, and TGA (thermal gravimetric analysis). The findings indicated that the materials have oxygen functionalities, a porous morphology, and a substantial specific surface area (BET) of 1269.92 m2/g for ZnO@JRACs. Zn atom concentration in the ZnO@JRACs surface was determined to be 1.16 atomic percent using ICP-AES. Desulfurization experiments were conducted on three liquid fuels, namely a single component model fuel, MSF (multicomponent simulated fuel), and commercial fuel (kerosene), under optimized conditions (8 g/L adsorbent dosage in 10 mL of fuel, 15 min of contact time at room temperature). The conditions effectively removed ~ 98.9% of dibenzothiophene (DBT) from the single component model fuel. The observed order for adsorption capacity is as follows: ZnO@JRACs (63.6 mg g-1) > JRACs (46.3 mg g-1) > DARCO (26.1 mg g-1). The analysis of multicomponent simulated fuel (MSF) using gas chromatography-flame photometric detector (GC-FPD) revealed significant removal percentages for different types of thiophenic sulfur. Specifically, the removal percentages were ~ 46.2%, 97.6%, and 99.4% for benzothiophene, dibenzothiophene, and 4, 6-dimethyldibenzothiophene, respectively. Kinetic studies have shown that the adsorption process is governed by a pseudo second-order reaction. Additional thermodynamic studies were conducted to further investigate the mechanism of adsorption. The spent synthesized composite ZnO@JRACs were thermally regenerated and can be reused for up to four cycles.
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Affiliation(s)
- Akash A Zalke
- Environmental Remediation Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology Nagpur (VNIT), Maharashtra, 440010, India
| | - Zakiullah Zaidi
- Environmental Remediation Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology Nagpur (VNIT), Maharashtra, 440010, India
| | - Laxmi Gayatri Sorokhaibam
- Environmental Remediation Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology Nagpur (VNIT), Maharashtra, 440010, India.
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Mian MM, Ao W, Xiao L, Xiao J, Deng S. Preparation of low-cost sludge-based highly porous biochar for efficient removal of refractory pollutants from agrochemical and pharmaceutical wastewater. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135572. [PMID: 39167926 DOI: 10.1016/j.jhazmat.2024.135572] [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: 05/29/2024] [Revised: 07/19/2024] [Accepted: 08/16/2024] [Indexed: 08/23/2024]
Abstract
Producing a high-performance sludge biochar through a feasible method is a great challenge and is crucial for practicability. Herein, we reported a highly porous sludge biochar synthesized from agrochemical-pharmaceutical and municipal sludge blends through a novel pyrolysis-acid treatment-post pyrolysis method. The optimized biochar named ASMS91 obtained interconnected pores with a total pore volume of 0.894 cm3/g and a surface area of 691.4 m2/g through extended acid wash and subsequent post-pyrolysis, which is superior to non-activated sludge biochar. ASMS91 removed 45.3 % of wastewater COD (156 mg/L) in 24 h, which was rapid and higher performance than commercial activated carbon (1000 iodine number). This outstanding performance is due to its high adsorption ability of long-chain aliphatic compounds (e.g., 2,4-Di-tert-butylphenol, neophytadiene and eicosane) into mesopores, which accounts for 71.8 % of pore filling. ASMS91 was highly recyclable, and adsorption was reduced by only 5.3 % after the 4th cycle. It also outperformed other sludge biochar in literature in removing perfluorooctanoic acid (PFOA), 6:2 fluorotelomer sulfonate (6:2 FTS), sulfamethoxazole, methylene blue, and methylene orange. Finally, the feasibility of our proposed method was validated by a brief techno-economic analysis. This feasible approach may support future research regarding sludge valorization and low-cost chemical wastewater treatment.
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Affiliation(s)
- Md Manik Mian
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Wenya Ao
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Lei Xiao
- United Envirotech Water Treatment (Dafeng) Co., Ltd. Yancheng, Jiangsu 224124, China
| | - Jianzhong Xiao
- United Envirotech Water Treatment (Dafeng) Co., Ltd. Yancheng, Jiangsu 224124, China
| | - Shubo Deng
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing 100084, China.
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Sasaki M, Hirata R, Konagai A, Ebara M. Electrospun EVOH/AST-120 hybrid nanofiber membranes for removal of indoxyl sulfate from blood. RSC Adv 2024; 14:26596-26603. [PMID: 39175674 PMCID: PMC11340389 DOI: 10.1039/d4ra04501g] [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: 06/20/2024] [Accepted: 08/10/2024] [Indexed: 08/24/2024] Open
Abstract
Nanofibers containing activated carbon using poly(ethylene-co-vinyl alcohol) (EVOH) were prepared to remove indoxyl sulfate (IS) from the blood. IS is a urinary toxin that is highly toxic and triggers the progression of chronic kidney disease (CKD). Here, nanofibers containing activated carbon (AST-120), which has been used practically as an adsorbent for indole (a precursor of IS), were fabricated via electrospinning for the adsorption and removal of IS from the blood. EVOH containing different ethylene ratios was used as the nanofiber material; moreover, the effect of the ethylene ratio on various properties of the nanofibers, such as surface wettability and the IS adsorption rate, was investigated. As a result, EVOH/AST-120 nanofibers comprising EVOH with a low ethylene ratio exhibited faster IS adsorption behavior. This adsorption behavior agreed well with the pseudo-second-order model, suggesting that the diffusion of IS into the nanofibers is the rate-limiting step of the process of adsorption. Furthermore, the nanofibers successfully reduced the IS concentration in the blood under circulating conditions. Therefore, these EVOH/AST-120 nanofibers are expected to greatly improve the prognosis of patients with CKD when used in combination with the current hemodialysis therapy as an IS-adsorbing filter.
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Affiliation(s)
- Makoto Sasaki
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
| | - Rieko Hirata
- Research and Development Division, Kureha Corporation 16 Ochiai, Nishiki-machi Iwaki Fukushima 974-8686 Japan
| | - Ayano Konagai
- Research and Development Division, Kureha Corporation 16 Ochiai, Nishiki-machi Iwaki Fukushima 974-8686 Japan
| | - Mitsuhiro Ebara
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8577 Japan
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de Souza Carolino A, Freitas XMS, Macalia CMA, Soares JC, Soares AC, da Costa Pinto C, Barbosa ARC, de Araújo Bezerra J, Campelo PH, da Silva Paula MM, Lalwani PJ, Inada NM, Țãlu Ș, Malheiro A, Sanches EA. Virus adsorbent systems based on Amazon holocellulose and nanomaterials. Microsc Res Tech 2024; 87:1933-1954. [PMID: 38563156 DOI: 10.1002/jemt.24566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/07/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
The environment preservation has been an important motivation to find alternative, functional, and biodegradable materials to replace polluting petrochemicals. The production of nonbiodegradable face masks increased the concentration of microplastics in the environment, highlighting the need for sustainable alternatives, such as the use of local by-products to create efficient and eco-friendly filtering materials. Furthermore, the use of smart materials can reduce the risk of contagion and virus transmission, especially in the face of possible mutations. The development of novel materials is necessary to ensure less risk of contagion and virus transmission, as well as to preserve the environment. Taking these factors into account, 16 systems were developed with different combinations of precursor materials (holocellulose, polyaniline [ES-PANI], graphene oxide [GO], silver nanoparticles [AgNPs], and activated carbon [AC]). Adsorption tests of the spike protein showed that the systems containing GO and AC were the most efficient in the adsorption process. Similarly, plate tests conducted using the VSV-IN strain cultured in HepG2 cells showed that the system containing all phases showed the greatest reduction in viral titer method. In agreement, the biocompatibility tests showed that the compounds extracted from the systems showed low cytotoxicity or no significant cytotoxic effect in human fibroblasts. As a result, the adsorption tests of the spike protein, viral titration, and biocompatibility tests showed that systems labeled as I and J were the most efficient. In this context, the present research has significantly contributed to the technological development of antiviral systems, with improved properties and increased adsorption efficiency, reducing the viral titer and contributing efficiently to public health. In this way, these alternative materials could be employed in sensors and devices for filtering and sanitization, thus assisting in mitigating the transmission of viruses and bacteria. RESEARCH HIGHLIGHTS: Sixteen virus adsorbent systems were developed with different combinations of precursor materials (holocellulose, polyaniline (ES-PANI), graphene oxide (GO), silver nanoparticles (AgNPs), and activated carbon (AC)). The system that included all of the nanocomposites holocellulose, PANI, GO, AgNPs, and AC showed the greatest reduction in viral titration. The biocompatibility tests revealed that all systems caused only mild or moderate cytotoxicity toward human fibroblasts.
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Affiliation(s)
- Adriano de Souza Carolino
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | | | | | - Juliana Coatrini Soares
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Andrey Coatrini Soares
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Camila da Costa Pinto
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Aguyda Rayany Cavalcante Barbosa
- Laboratory of Infectious Diseases and Immunology, Fundação Oswaldo Cruz - Instituto Leônidas e Maria Deane (FIOCRUZ-ILMD), Manaus, AM, Brazil
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus, AM, Brazil
| | | | | | - Pritesh Jaychand Lalwani
- Laboratory of Infectious Diseases and Immunology, Fundação Oswaldo Cruz - Instituto Leônidas e Maria Deane (FIOCRUZ-ILMD), Manaus, AM, Brazil
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Ștefan Țãlu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Cluj-Napoca, Romania
| | - Adriana Malheiro
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
- Laboratory of Genomics (LABGEN), Hospital Foundation of Hematology and Hemotherapy of Amazonas (HEMOAM), Manaus, AM, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
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Temesgen T, Dessie Y, Tilahun E, Tufa LT, Gonfa BA, Hamdalla TA, Ravikumar C, Murthy HCA. Optimization of Water Hyacinth Stem-Based Oxygen-Functionalized Activated Carbon for Enhanced Supercapacitors. ACS OMEGA 2024; 9:30725-30736. [PMID: 39035899 PMCID: PMC11256105 DOI: 10.1021/acsomega.4c03123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/19/2024] [Accepted: 06/26/2024] [Indexed: 07/23/2024]
Abstract
In the current world, storing and converting energy without affecting the natural ecosystem are considered a sustainable and efficient green energy source production technology. Especially, using low-cost, environmentally friendly, and high-cycle stability activated carbon (AC) from the water hyacinth (Eichhornia crassipes) waste material for charge storage application is the current attractive strategy for renewable energy generation. In this study, preparation of AC from water hyacinth using a mixed chemical activation agent followed by activation time was optimized by the I-optimal coordinate exchange design model based on a 3-factor/3-level strategy under nine experimental runs. The optimum conditions to prepare AC were found to be potassium hydroxide (≈17 g) and potassium carbonate (≈11 g), and the carbonization time was approximately 1 h. Under these augmented conditions, the maximum specific capacitance suggested by the designed model was found to be ≈75.2 F/g. The regression coefficient (R 2 = 0.9979), adjusted (R 2 = 0.9917), predicted (R 2 = 0.8706), adequate precision (39.2795), and p-values (0.0062) proved the good correlation between actual and predicted values. The physicochemical and electrochemical properties of the final optimized AC were characterized by thermogravimetric/differential thermal analysis (TGA/DTA), X-ray diffractometry (XRD), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected area electron diffraction (SAED), and potentiostat (CV and EIS) instruments. Finally, the optimized AC electrode after 100 cycles at a current density of 2 A g-1 retains an efficiency of 71.57%, indicating the good stability and sustainability of this material.
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Affiliation(s)
- Tilahun Temesgen
- Chemistry
Department, School of Natural Science, Dambi
Dollo University, P O Box 260 Dambi Dollo, Ethiopia
| | - Yilkal Dessie
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888 Adama, Ethiopia
| | - Eneyew Tilahun
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888 Adama, Ethiopia
| | - Lemma Teshome Tufa
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888 Adama, Ethiopia
| | - Bedasa Abdisa Gonfa
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888 Adama, Ethiopia
| | - Taymour A. Hamdalla
- Physics
Department, Faculty of Science, University
of Tabuk, Tabuk 47512, KSA
| | - C.R. Ravikumar
- Research
Centre, Department of Science, East-West
Institute of Technology, Bangalore 560091, India
| | - H C Ananda Murthy
- School
of Applied Sciences, Papua New Guinea University
of Technology, Lae, Morobe Province 411, Papua New Guinea
- Department
of Prosthodontics, Saveetha Dental College & Hospital, Saveetha
Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai 600077, Tamil Nadu, India
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Duran-Rivera B, Rojas-Rodas F, Silva López W, Gómez-Suárez C, Castro Restrepo D. Enhancing Eritadenine Production in Submerged Cultures of Shiitake ( Lentinula edodes Berk. Pegler) Using Blue LED Light and Activated Charcoal. Revealing Eritadenine's Novel In Vitro Bioherbicidal Activity Against Chrysanthemum morifolium. MYCOBIOLOGY 2024; 52:145-159. [PMID: 38948450 PMCID: PMC11210419 DOI: 10.1080/12298093.2024.2350207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/28/2024] [Indexed: 07/02/2024]
Abstract
Eritadenine from shiitake mushroom is a secondary metabolite with hypocholesterolemic, hypotensive and antiparasitic properties, thus promising for pharmaceutical and agricultural applications. Eritadenine is obtained from submerged mycelial cultures of shiitake, but the actual yields remain unsatisfactory to explore potential applications or industrial-scale production. In this study, green and blue LED lights were tested to increase yields of eritadenine in submerged cultures of shiitake. Notably, blue LEDs increased yields by 13-14 times, reaching 165.7 mg/L, compared to darkness (11.2 mg/L) and green light (12.1 mg/L) (p < 0.05, Tukey test). Nitrogen sources yeast extract (YE) and peptone (at 2 g/L) increased eritadenine production. YE promoted 22.6 mg/L, while peptone 18.3 mg/L. The recovery of eritadenine was evaluated using amberlite and activated charcoal (AC) adsorption isotherms. AC demonstrated the highest adsorption rate, with 75 mg of eritadenine per gram of AC, according to the Freundlich isotherm. The desorption rate reached 93.95% at pH 10. The extract obtained from submerged cultures had eritadenine content of 63.31%, corresponding to 87.86% of recovery, according to HPLC analysis. Furthermore, the novel bioherbicidal potential of eritadenine was tested on in vitro Chrysanthemum morifolium plants. The cultures extract containing eritadenine had a detrimental impact on plant development, generating mortality of 100% at 3%, 0.5%, and 0.25%. Moreover, pure eritadenine exhibited a phytotoxic effect similar than glyphosate on leaves, stems and roots. These findings highlight the significant bioherbicidal properties of eritadenine. Further studies are needed to understand the biosynthetic pathway of eritadenine and its bioherbicidal properties on weeds and illicit crops.
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Affiliation(s)
- Byron Duran-Rivera
- Unidad de Biotecnología Vegetal, Universidad Católica de Oriente, Rionegro, Colombia
| | - Felipe Rojas-Rodas
- Grupo de Investigación en Innovación Digital y Desarrollo Social, Universidad digital de Antioquia, Medellín, Colombia
| | - Wilber Silva López
- Grupo de Óptica y Espectroscopía, Universidad Pontificia Bolivariana, Medellín, Colombia
| | - Crhistian Gómez-Suárez
- Centro de la Ciencia y la Investigación Farmacéutica CECIF, Validaciones y Estabilidades, Sabaneta, Colombia
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Andriyko L, Tagayev I, Siora I, Petrik I, Goncharuk O. Novel granular bentonite-carbon sorbents: textural characterization, adsorption-desorption isotherm, kinetics, and cost estimation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:42230-42250. [PMID: 38865043 DOI: 10.1007/s11356-024-33882-x] [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: 02/28/2024] [Accepted: 05/29/2024] [Indexed: 06/13/2024]
Abstract
This research focuses on the synthesis of novel low-cost granular sorbents based on bentonite clay of the Navbahor deposit, dust fraction of Angren brown coal, and agricultural wastes such as straw and sawdust to meet the internal needs of the Republic of Uzbekistan. The impact of the initial mixture ingredients on the structural and textural properties of bentonite-coal sorbents (BCSs) has been studied using X-ray diffraction, Raman spectroscopy, Fourier-transform infrared spectroscopy, optical microscopy, and nitrogen adsorption-desorption analysis. For determining the sorption capacity of BCSs, a standard model substance methylene blue (MB), was applied. It was revealed that the maximum adsorption amount of MB was 5.3 mg∙g-1 during 2 h of contact. Prolonging the contact time to 24 h allowed for more extensive diffusion of dye molecules into the sorbent's pores, increasing the adsorption capacity to 13 mg∙g-1. It was demonstrated that BCSs could be regenerated by strong oxidizing agents such as sulfuric acid and hydrogen peroxide, with sulfuric acid proving more effective. Regeneration fully restores sorption properties, particularly at low dye concentrations (up to 0.2 mg∙ml-1). Despite slight reductions in adsorption capacity over multiple regeneration cycles, the sorbents maintain their structural integrity and durability. It is shown that compared to imported expensive activated carbon, the gross profitability of the in-house production of such granular BCSs within the territory of Uzbekistan increases from 48 to 78%, while the net income increases almost three times.
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Affiliation(s)
- Lyudmyla Andriyko
- Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17, General Naumov Str, Kyiv, 03164, Ukraine.
| | - Ilkhom Tagayev
- Navoi Innovation University, 39 Tashkent Str., Navoi, Uzbekistan, 210100
| | - Iryna Siora
- Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17, General Naumov Str, Kyiv, 03164, Ukraine
| | - Iryna Petrik
- Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17, General Naumov Str, Kyiv, 03164, Ukraine
| | - Olena Goncharuk
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
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Mojapelo N, Seroka N, Khotseng L. Green and sustainable use of macadamia nuts as support material in Pt-based direct methanol fuel cells. Heliyon 2024; 10:e29907. [PMID: 38707303 PMCID: PMC11068541 DOI: 10.1016/j.heliyon.2024.e29907] [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: 01/17/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/07/2024] Open
Abstract
The successful commercialization of direct methanol fuel cells (DMFCs) is hindered by inadequate methanol oxidation activity and anode catalyst longevity. Efficient and cost-effective electrode materials are imperative in the widespread use of DMFCs. While Platinum (Pt) remains the primary component of anodic methanol oxidation reaction (MOR) electrocatalysts, its utilization alone in DMFC systems is limited due to carbon monoxide (CO) poisoning, instability, methanol crossover, and high cost. These limitations impede the economic feasibility of Pt as an electrocatalyst. Herein, we present the use of powdered activated carbon (PAC) and granular activated carbon (GAC), both sourced from macadamia nut shells (MNS), a type of biomass. These bio-based carbon materials are integrated into hybrid supports with reduced graphene oxide (rGO), aiming to enhance the performance and reduce the production cost of the Pt electrocatalyst. Electrochemical and physicochemical characterizations of the synthesized catalysts, including Pt-rGO/PAC-1:1, Pt-rGO/PAC-1:2, Pt-rGO/GAC-1:1, and Pt-rGO/GAC-1:2, were conducted. X-ray diffraction analysis revealed crystallite sizes ranging from 1.18 nm to 1.68 nm. High-resolution transmission electron microscopy (HRTEM) images with average particle sizes ranging from 1.91 nm to 2.72 nm demonstrated spherical dispersion of Pt nanoparticles with some agglomeration across all catalysts. The electrochemical active surface area (ECSA) was determined, with Pt-rGO/GAC-1:1 exhibiting the highest ECSA of 73.53 m2 g-1. Despite its high ECSA, Pt-rGO/GAC-1:1 displayed the lowest methanol oxidation reaction (MOR) current density, indicating active sites with poor catalytic efficiency. Pt-rGO/PAC-1:1 and Pt-rGO/PAC-1:2 exhibited the highest MOR current densities of 0.77 mA*cm-2 and 0.74 mA*cm-2, respectively. Moreover, Pt-rGO/PAC-1:2 and Pt-rGO/PAC-1:1 demonstrated superior electrocatalytic mass (specific) activities of 7.55 mA/mg (0.025 mA*cm-2) and 7.25 mA/mg (0.021 mA*cm-2), respectively. Chronoamperometry tests revealed Pt-rGO/PAC-1:2 and Pt-rGO/PAC-1:1 as the most stable catalysts. Additionally, they exhibited the lowest charge transfer resistances and highest MOR current densities after durability tests, highlighting their potential for DMFC applications. The synthesized Pt supported on PACs hybrids demonstrated remarkable catalytic performance, stability, and CO tolerance, highlighting their potential for enhancing DMFC efficiency.
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Affiliation(s)
- N.A. Mojapelo
- Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - N.S. Seroka
- Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
- Energy Centre, Smart Places Cluster, Council for Science and Industrial Research (CSIR), Pretoria, 0001, South Africa
| | - L. Khotseng
- Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
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Xie Z, Zhang Y, Li Z, Zhang S, Du C. Nitrogen-Doped Biochar for Enhanced Peroxymonosulfate Activation to Degrade Phenol through Both Free Radical and Direct Oxidation Based on Electron Transfer Pathways. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8520-8532. [PMID: 38608211 DOI: 10.1021/acs.langmuir.4c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Nowadays, super nitrogen-doped biochar (SNBC) material has become one of the most promising metal-free catalysts for activating peroxymonosulfate (PMS) to degrade organic pollutants. To understand the evolution of SNBC properties with fabrication conditions, a variety of SNBC materials were prepared and characterized by elemental analysis, N2 adsorption-desorption, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. We systematically investigated the activation potential of these SNBC materials for PMS to degrade phenol. SN1BC-800 with the best catalytic performance was obtained by changing the activation temperatures and the ratio of biochar to melamine. The effects of catalyst dosage, the PMS concentration, pH, and reaction temperature on phenol degradation were studied in detail. In the presence of 0.3 g/L SN1BC-800 and 1 g/L PMS, the removal rate of 20 mg/L phenol could reach 100% within 5 min. According to electron paramagnetic resonance spectra and free radical quenching experiments, a nonfree radical pathway of phenol degradation dominated by 1O2 and electron transfer was proposed. More interestingly, the excellent catalytic performance of the SN1BC-800/PMS system is universally applicable in the degradation of other typical organic pollutants. In addition, the degradation rate of phenol is still over 80% after five reuses, which shows that the SN1BC-800 catalyst has high stability and good application prospects in environmental remediation.
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Affiliation(s)
- Zengrun Xie
- School of Chemistry and Materials Science, Institute of Environmental Science, Ludong University, Yantai 264025, Shandong province, China
| | - Yuanyuan Zhang
- Environmental Monitor Station of Yantai, Shandong Province, China, No. 118, Qingnian South Road, Yantai 264000, Shandong province, China
| | - Zhiling Li
- Division of Science and Technology, Ludong University, Yantai 264025, Shandong province, China
| | - Shengxiao Zhang
- School of Chemistry and Materials Science, Institute of Environmental Science, Ludong University, Yantai 264025, Shandong province, China
| | - Chenyu Du
- School of Chemistry and Materials Science, Institute of Environmental Science, Ludong University, Yantai 264025, Shandong province, China
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10
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Patil P, Jeppu G, Vallabha MS, Girish CR. Enhanced adsorption of phenolic compounds using biomass-derived high surface area activated carbon: Isotherms, kinetics and thermodynamics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-32971-1. [PMID: 38578594 DOI: 10.1007/s11356-024-32971-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/14/2024] [Indexed: 04/06/2024]
Abstract
The progress of industrial and agricultural pursuits, along with the release of inadequately treated effluents especially phenolic pollutant, has amplified the pollution load on environment. These organic compounds pose considerable challenges in both drinking water and wastewater systems, given their toxicity, demanding high oxygen and limited biodegradability. Thus, developing an eco-friendly, low-cost and highly efficient adsorbent to treat the organic pollutants has become an important task. The present investigation highlights development of a novel adsorbent (CFPAC) by activation of Cassia fistula pod shell for the purpose of removing phenol and 2,4-dichlorophnenol (2,4-DCP). The significant operational factors (dosage, pH, concentration, temperature, speed) were also investigated. The factors such as pH = 2 and T = 20°C were found to be significant at 1.6 g/L and 0.6 g/L dosage for phenol and 2,4-DCP respectively. Batch experiments were further conducted to study isotherms, kinetic and thermodynamics studies for the removal of phenol and 2,4-DCP. The activated carbon was characterised as mesoporous (specific surface area 1146 m2/g, pore volume = 0.8628 cc/g), amorphous and pHPZC = 6.4. At optimum conditions, the maximum sorption capacity for phenol and 2,4-DCP were 183.79 mg/g and 374.4 mg/g respectively. The adsorption isotherm was better conformed to Redlich Peterson isotherm (phenol) and Langmuir isotherm (2,4-DCP). The kinetic study obeyed pseudo-second-order type behaviour for both the pollutants with R2 > 0.999. The thermodynamic studies and the value of isosteric heat of adsorption for both the pollutants suggested that the adsorption reaction was dominated by physical adsorption (ΔHx < 80 kJ/mol). Further, the whole process was feasible, exothermic and spontaneous in nature. The overall studies suggested that the activated carbon synthesised from Cassia fistula pods can be a promising adsorbent for phenolic compounds.
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Affiliation(s)
- Praveengouda Patil
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Gautham Jeppu
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | | | - Chikmagalur Raju Girish
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
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11
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Enyoh CE, Wang Q. Combined experimental and molecular dynamics removal processes of contaminant phenol from simulated wastewater by polyethylene terephthalate microplastics. ENVIRONMENTAL TECHNOLOGY 2024; 45:1183-1202. [PMID: 36269120 DOI: 10.1080/09593330.2022.2139636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Microplastics (MPs) and phenolics are pollutants found ubiquitously in freshwater systems. MPs oftentimes serve as a vector for pollutants across ecosystems and are now being explored as alternative adsorbents for pollutant removal. This strategy would reflect the 'reuse' of an existing waste stream into a potentially useful product while at the same time helping to minimize plastic waste in the marine environment. In this study, the adsorption of phenol onto pristine (Pr-PET), modified (Mod-PET), and aged (Ag-PET) Polyethylene Terephthalate (PET) microplastics was examined experimentally and theoretically. Kinetics, isotherms, and thermodynamics models were used to investigate the adsorption process while Grand Canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations were employed to investigate molecular level alterations. The result showed that the Ag-PET MPs had the best removal efficiency due larger surface area and the adsorption occurred in a pseudo-second-order manner, showing that the rate of phenol adsorption is directly proportional to the number of surface-active sites on the surface of PET MPs while the intraparticle diffusion defined rate-limiting step. However, the maximum monolayer adsorption capacity followed Mod-PET (38.02 mg/g) > Ag-PET (8.08 mg/g) > Pr-PET (6.84 mg/g). The adsorption process proceeded spontaneously and thermodynamically favourable. GCMC-MD simulations revealed that PET MPs are capable of successfully adsorbing the phenol molecule through Van der Waals and electrostatic interactions and can be adopted as novel adsorbents for phenol removal in aqueous solutions.
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Affiliation(s)
| | - Qingyue Wang
- Graduate School of Science and Engineering, Saitama University, Saitama City, Japan
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12
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Martínez-Alvarenga H, Gutiérrez MC, Gómez-Cámer JL, Benítez A, Martín MA, Caballero A. Integral evaluation of effective conversion of sewage sludge from WWTP into highly porous activated carbon. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119822. [PMID: 38134504 DOI: 10.1016/j.jenvman.2023.119822] [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: 10/11/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Urban sewage sludge (SL) is a major concern due to the number of environmental problems it causes. Its application for different purposes is strictly regulated, limiting the possibilities of recycling and reusing this material. Thus, in this work, a complete study of a simple method to convert SL into activated carbon (AC) was carried out. The comprehensive study involves an evaluation of the main process parameters, such as the activating agent (AA) content (25 %, 33 %, 50 %), using the lowest amount of AA as novelty, different pyrolysis temperatures (600 and 800 °C), and purification conditions (6 M HCl:AC ratio, v:w). Under controlled and optimised conditions and through a single combined activation and pyrolysis step followed by acid purification, ACs with well-developed porosity can be obtained. Surface area values of around 870 m2/g and over 60 % carbon content were achieved, demonstrating that the prepared ACs could have applications in a wide variety of fields as high-value products. As an innovative aspect in this research, the gases streams and liquid effluents generated during the global process were analysed, achieving elimination of over 63 % of the concentration of the chemical elements contained in the SL during the chemical purification stage. Finally, mass, energy, and economic balances were carried out to estimate the production cost of AC derived from SL (<€ 8/kg AC).
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Affiliation(s)
- H Martínez-Alvarenga
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain
| | - M C Gutiérrez
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain; Campus de Excelencia Internacional Agroalimentario ceiA3, Universidad de Córdoba, Campus Universitario de Rabanales, N-IV, km 396, Córdoba, 14071, Spain
| | - J L Gómez-Cámer
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain
| | - A Benítez
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain.
| | - M A Martín
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain; Campus de Excelencia Internacional Agroalimentario ceiA3, Universidad de Córdoba, Campus Universitario de Rabanales, N-IV, km 396, Córdoba, 14071, Spain.
| | - A Caballero
- Dpto. Química Inorgánica e Ingeniería Química, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Córdoba, 14014, Córdoba, Spain
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13
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Lupa L, Tolea NS, Iosivoni M, Maranescu B, Plesu N, Visa A. Performance of ionic liquid functionalized metal organic frameworks in the adsorption process of phenol derivatives. RSC Adv 2024; 14:4759-4777. [PMID: 38318619 PMCID: PMC10840391 DOI: 10.1039/d3ra08024b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/20/2024] [Indexed: 02/07/2024] Open
Abstract
The growth of industrial activities has produced a significant increase in the release of toxic organic pollutants (OPs) to the environment from industrial wastewater. On this premise, this study reports the use of metal organic frameworks (MOFs) impregnated with various ionic liquids (ILs) in the adsorption of phenol derivatives, i.e., 2,6-dimethylphenol and 4,4'-dihydroxybiphenyl. MOFs were prepared starting from 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) with divalent (Co, Ni, Cu) and trivalent (Ce) metal salts in mild hydrothermal conditions using water as a green solvent. Imidazolium base ionic liquids, namely 1-butyl-3-methylimidazolium trifluoromethanesulfonate, 1-butyl-3-methylimidazolium nitrate, 1-butyl-3-methylimidazolium chloride, and 1-hexyl-3-methyl-imidazolium chloride, were used to modify MOFs, leading to composite materials (IL@MOF), which show the structural characteristics of MOFs, and complement the advantages of ILs. SEM, EDX images, and TG data indicate that the IL is just attached on the surface of the adsorbent material, with no changes in crystal size or morphology, but with slightly altered thermal stabilities of IL@MOF composites compared to the original ILs and MOFs, pointing to some interionic interaction between IL and MOF. This research consists of equilibrium experiments, studying the effect of the initial concentration of OPs on the adsorption efficiency of the as-prepared MOFs and IL@MOF, in order to determine the influence of the nature of the adsorbent on its developed adsorption capacity and to investigate the performance of both ILs and MOFs. To determine the maximum adsorption capacity, several empirical isotherms were used: Langmuir, Freundlich, Redlich-Peterson, and Dubinin-Radushkevich. The characteristic parameters for each isotherm and the correlation coefficient (R2) were identified. The IL modification of MOFs increased the adsorption capacity of IL@MOF for the removal of phenol derivatives from aqueous solution. The adsorption capacity function of the MOF structure follows the trend CeHEDP > CoHEDP > NiHEDP > CuHEDP. The best performance was achieved by adsorbent materials based on Ce.
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Affiliation(s)
- Lavinia Lupa
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara 6 Vasile Parvan Blv 300223 Timisoara Romania
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
| | - Nick Samuel Tolea
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
- National Institute of Research and Development for Electrochemistry and Condensed Matter Dr. A. P. Podeanu 144 300569 Timişoara Romania
| | - Marcela Iosivoni
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
| | - Bianca Maranescu
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
- Department of Biology-Chemistry, Faculty of Chemistry, Biology, Geography, West University 16 Pestalozzi Street 300115 Timisoara Romania
| | - Nicoleta Plesu
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
| | - Aurelia Visa
- "Coriolan Dragulescu" Institute of Chemistry 24 Mihai Viteazul Blv 300223 Timisoara Romania
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14
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Sun S, Vikrant K, Verma S, Boukhvalov DW, Kim KH. Diaminopropane-appended activated carbons for the adsorptive removal of gaseous formaldehyde using a portable indoor air purification unit. J Colloid Interface Sci 2024; 653:992-1005. [PMID: 37778154 DOI: 10.1016/j.jcis.2023.09.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
It is of significant practical interest to develop high-performance air purifier (AP) for removing carcinogenic volatile organic compounds present ubiquitously in indoor air (e.g., formaldehyde (FA)). In this regard, a portable AP system was designed by loading honeycomb ceramic filters with diaminopropane (DAP)-appended activated carbon (AC). The maximum removal efficiencies (REs) of AP loaded with 10, 20, 30, and 50 %-DAP/AC were 26.2, 28, 88.3, and 89.4 %, respectively, against 5 ppm FA (at 160 L min-1). Hence, the 30 % DAP unit was used mainly in this work. The removal efficiency of 30 %-DAP/AC (160 L min-1), when tested against 2 ppm FA, decreased from 90.3 to 73.2 % with an increase in relative humidity from 0 to 60 %. The performance of the AP unit, when assessed kinetically in terms of the clean air delivery rate (CADR), reached as high as 10.2 L min-1 at the flow rate of 160 L min-1. Isotherm analysis further demonstrated the complex multilayered adsorption behavior of FA. Based on the density functional theory (DFT) simulation, the superiority of DAP/AC for FA adsorption can be attributed to the synergy of covalent (chemisorption) and non-covalent (pore filling and film diffusion) interactions.
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Affiliation(s)
- Shaoqing Sun
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea
| | - Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea
| | - Swati Verma
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea
| | - Danil W Boukhvalov
- College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing 210037, China; Institute of Physics and Technology, Ural Federal University, Mira Street 19, 620002 Yekaterinburg, Russia
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Republic of Korea.
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15
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Boopathi G, Ragavan R, Jaimohan SM, Sagadevan S, Kim I, Pandurangan A, Sivaprakash P. Mesoporous graphitic carbon electrodes derived from boat-fruited shells of Sterculia Foetida for symmetric supercapacitors for energy storage applications. CHEMOSPHERE 2024; 348:140650. [PMID: 37951405 DOI: 10.1016/j.chemosphere.2023.140650] [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: 05/22/2023] [Revised: 10/06/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
In recent years, intensive research efforts have focused on translating biomass waste into value-added carbon materials broadcasted for their significant role in energy and environmental applications. For the first time, high-performance carbonaceous materials for energy storage applications were developed from the multi-void structure of the boat-fruited shells of Sterculia Foetida (SF). In that view, synthesized mesoporous graphitic activated carbon (g-AC) via the combination of carbonization at various elevating temperatures of 700, 800, and 900 °C, respectively, and alkali activation by KOH, with a high specific surface area of 1040.5 m2 g-1 and a mesopore volume of 0.295 cm3 g-1. In a three-electrode configuration, the improved electrode (SF-K900) exhibited excellent electrochemical behavior, which was observed in an aqueous electrolyte (1 M H2SO4) with a high specific capacitance of 308.6 F/g at a current density of 1 A/g, owing to the interconnected mesopore structures and high surface area of SF-K900. The symmetric supercapacitor (SSC) delivered the specific capacitance of 138 F/g at 1 A/g with a high energy density (ED) of 13.4 Wh/kg at the power density (PD) of 24.12 kW/kg with remarkable cycle stability and supercapacitive retention of 93% over 5000 cycles. Based on the findings, it is possible to develop low-cost active electrode materials for high-rate performance SSC using mesoporous g-AC derived from SF boat-fruited shells.
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Affiliation(s)
- G Boopathi
- Department of Chemistry, Anna University, Chennai, 600025, India
| | - R Ragavan
- Department of Chemistry, Anna University, Chennai, 600025, India
| | - S M Jaimohan
- Advanced Materials Laboratory, Central Leather Research Institute, Chennai, 600020, India
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ikhyun Kim
- Department of Mechanical Engineering, Keimyung University, Daegu, 42601, Republic of Korea
| | - A Pandurangan
- Department of Chemistry, Anna University, Chennai, 600025, India.
| | - P Sivaprakash
- Department of Mechanical Engineering, Keimyung University, Daegu, 42601, Republic of Korea
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16
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Banga I, Paul A, Dhamu VN, Ramasubramanya AH, Muthukumar S, Prasad S. Activated carbon derived from wood biochar for Amperometric sensing of Ammonia for early screening of chronic kidney disease. Int J Biol Macromol 2023; 253:126894. [PMID: 37709225 DOI: 10.1016/j.ijbiomac.2023.126894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/31/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
Personalized medicine has emerged as an increasingly efficient and effective approach to addressing disease diagnosis and intervention. Ammonia is a waste product produced by the body during the digestion of protein. The requirement to develop an electrochemical sensing platform for monitoring skin ammonia levels holds great potential as an essential solution to pre-screen chronic kidney disease (CKD). In this research, we have manufactured an innovative electrochemical sensor by employing activated carbon derived from wood biochar as the signal transducer. We conducted a comprehensive analysis of the structural and morphological characteristics of the synthesized materials using various techniques. The hypothesized interaction was investigated using chronoamperometry as a transduction technique. To assess cross-reactivity, we conducted a study using common interferants or chemicals present in the environment. The data presented in this paper represents three replicates and is plotted with a 5 % error bar, demonstrating a 95 % confidence interval in the sensor response. In this study, we have elucidated the functionality and usefulness of a wearable microelectronic research prototype integrated with an HTC-activated carbon @RTIL-based electrochemical sensing platform for detecting ammonia levels released from the skin as a marker for chronic kidney disease screening. By enabling early detection and monitoring, these platforms can facilitate timely interventions, such as lifestyle modifications, medication adjustments, or referral to nephrology specialists. This proactive approach can potentially slow down disease progression, minimize the need for dialysis or transplantation, and ultimately improve the quality of life for CKD patients.
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Affiliation(s)
- Ivneet Banga
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA.
| | - Anirban Paul
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA.
| | | | | | - Sriram Muthukumar
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; EnLiSense LLC, 1813 Audubon Pondway, Allen, TX 75013, USA.
| | - Shalini Prasad
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; EnLiSense LLC, 1813 Audubon Pondway, Allen, TX 75013, USA.
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17
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Gayathiri M, Pulingam T, Lee KT, Mohd Din AT, Kosugi A, Sudesh K. Sustainable oil palm trunk fibre based activated carbon for the adsorption of methylene blue. Sci Rep 2023; 13:22137. [PMID: 38092816 PMCID: PMC10719241 DOI: 10.1038/s41598-023-49079-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023] Open
Abstract
Activated carbon (AC) is becoming the limelight due to its widespread application as an adsorbent for wastewater treatment, gases, and catalysis. However, its high consumption and price have drawn more attention to the sustainable use of natural resources as precursor for AC production. This study focuses on synthesising AC from two types of oil palm trunk (OPT) fibres, a significant agricultural waste products produced by Malaysia's thriving palm oil industries. The BET surface area of about 2057.9 m2 g-1 was achieved by chemical activation with phosphoric acid (H3PO4). The efficiency of the synthesised AC was critically analysed based on the adsorption experiments with methylene blue (MB) by varying several parameters (dosage of adsorbent, pH, initial dye concentration, and temperature of the solution) to elucidate the adsorption mechanism(s). A maximum adsorption capacity of 320.4 mg g-1 at 50 °C was achieved, and the Temkin (r2 = 0.98, 0.95, 0.95) and Langmuir (r2 = 0.94, 0.93, 0.95) isotherm models fitted the adsorption process better than the Freundlich (r2 = 0.95, 0.90, 0.86) model. Besides, the pseudo-second-order model (r2 > 0.90) best described the adsorption process, favouring chemisorption over physisorption. Thermodynamics showed MB adsorption on AC was spontaneous except at the highest dye concentration. It was exothermic at lower dye concentrations (50 and 100 mg L-1) and endothermic at higher ones (300, 500, and 700 mg L-1). In a nutshell, this study reveals that OPT fibre is a promising precursor for synthesising highly porous AC for the adsorption of MB dye.
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Affiliation(s)
- Muniandy Gayathiri
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Thiruchelvi Pulingam
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - K T Lee
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300, Nibong Tebal, Penang, Malaysia
| | | | - Akihiko Kosugi
- Japan International Research Center for Agricultural Sciences (JIRCAS), Biological Resources and Post-Harvest Division, 1-1 Ohwashi, Tsukuba, Ibaraki, 305-8686, Japan
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Kumar Sudesh
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia.
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18
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Darla UR, Lataye DH, Kumar A, Pandit B, Ubaidullah M. Adsorption of phenol using adsorbent derived from Saccharum officinarum biomass: optimization, isotherms, kinetics, and thermodynamic study. Sci Rep 2023; 13:18356. [PMID: 37884549 PMCID: PMC10603077 DOI: 10.1038/s41598-023-42461-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/11/2023] [Indexed: 10/28/2023] Open
Abstract
The present research shows the application of Taguchi's design of experiment approach to optimize the process parameters for the removal of phenol onto surface of Saccharum officinarum biomass activated carbon (SBAC) from an aqueous solution to maximize adsorption capacity of SBAC. The effect of adsorption parameters viz. adsorbent dose (m), temperature (T), initial concentration (C0) and mixing time (t) on response characteristics i.e., adsorption capacity (qt) has been studied at three levels by using L9 orthogonal array (OA) which further analyzed by variance analysis (ANOVA) for adsorption data and signal/noise (S/N) ratio data by using 'larger the better' characteristics. Using ANOVA, the optimum parameters are found to be m = 2 g/L, C0 = 150 mg/L, T = 313 K and t = 90 min, resulting in a maximum adsorption capacity of 64.59 mg/g. Adopting ANOVA, the percentage contribution of each process parameter in descending order of sequence is adsorbent dose 59.97% > initial phenol concentration 31.70% > contact time 4.28% > temperature 4.04%. The phenol adsorption onto SBAC was best fitted with the pseudo-second-order kinetic model and follows the Radke-Prausnitz isotherm model. Thermodynamic parameters suggested a spontaneous, exothermic nature and the adsorption process approaches physisorption followed by chemisorption. Hence the application of Taguchi orthogonal array design is a cost-effective and time-efficient approach for carrying out experiments and optimizing procedures for adsorption of phenol and improve the adsorption capacity of SBAC.
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Affiliation(s)
- Upendra R Darla
- Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, 440010, India
| | - Dilip H Lataye
- Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur, 440010, India.
| | - Anuj Kumar
- Department of Chemistry, GLA University, Mathura, 281406, India
| | - Bidhan Pandit
- Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avenida de la Universidad 30, 28911, Leganés, Madrid, Spain
| | - Mohd Ubaidullah
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
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19
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Hanif A, Aziz MA, Helal A, Abdelnaby MM, Khan A, Theravalappil R, Khan MY. CO 2 Adsorption on Biomass-Derived Carbons from Albizia procera Leaves: Effects of Synthesis Strategies. ACS OMEGA 2023; 8:36228-36236. [PMID: 37810635 PMCID: PMC10552137 DOI: 10.1021/acsomega.3c04693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023]
Abstract
CO2 capture is a useful strategy for controlling the risks associated with global warming. The design of an adsorbent is essential for clean and potentially energy-efficient adsorption-based carbon capture processes. This study reports a facile and moderately temperature single-stage combined pyrolysis and activation strategy for the synthesis of nitrogen-doped carbons for high-performance CO2 capture. Using nitrogen-rich Albizia procera leaves as the precursor and carrying out single-stage pyrolysis and activation at temperatures of 500, 600, and 700 °C in the presence NaHCO3 as an activating agent, carbons with different surface characteristics and ultrahigh weight percentage (22-25%) of nitrogen were obtained. The subtle differences in surface characteristics and nitrogen content had a bearing on the CO2 adsorption performance of the resultant adsorbents. Outstanding results were achieved, with a CO2 adsorption capacity of up to 2.5 mmol/g and a CO2 over N2 selectivities reaching 54. The isotherm results were utilized to determine the performance indicators for a practical vacuum swing adsorption process. This study provides a practical strategy for the efficient synthesis of nitrogen-doped carbons for various adsorption applications.
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Affiliation(s)
- Aamir Hanif
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Md. Abdul Aziz
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Aasif Helal
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Mahmoud M. Abdelnaby
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Abuzar Khan
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Rajesh Theravalappil
- Center
for Refining and Advanced Chemicals, King
Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Mohd Yusuf Khan
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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20
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Elayadi F, Achak M, Boumya W, Barka N, Lamy E, El Adlouni C. Olive mill wastewater treatment using natural adsorbents: phytotoxicity on durum wheat (Triticum turgidum L. var. durum) and white bean (Phaseolus vulgaris L.) seed germination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109481-109499. [PMID: 37924176 DOI: 10.1007/s11356-023-29741-w] [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: 03/10/2023] [Accepted: 09/02/2023] [Indexed: 11/06/2023]
Abstract
This research was undertaken to optimize the phenolic compound removal from Olive Mill Wastewater (OMW) by sawdust and red clay as natural adsorbents. Fractional factorial experimental design at 25-1 was used in order to optimize the experimental conditions for high removal efficiency. Statistics ANOVA analysis, Fisher's test, and Student's test suggested that the adsorbent dose has the most significant influence on polyphenol removal for both adsorbents. The maximum removal of polyphenols by sawdust reached 49.6% at 60 °C by using 60 g/L of adsorbent dose, pH 2, reaction time of 24 h, and agitation speed of 80 rpm. Whereas, for red clay, 48.08% of polyphenols removal was observed under the same conditions for sawdust except the temperature of 25 °C instead of 60 °C. In addition, the thermodynamic parameters suggested spontaneous process for both adsorbents, endothermic for the sawdust and exothermic for red clay. Furthermore, the phytotoxicity effect of OMW on durum wheat (Triticum turgidum L. var. durum) and white bean (Phaseolus vulgaris L.) seed germination was investigated. The obtained results showed that the untreated OMW inhibited the seed germination of T. turgidum and P. vulgaris seeds. OMW treatment with red clay followed by dilution (95% water) resulted in 87 and 30% germination of P. vulgaris and T. turgidum, respectively. While, the treatment of OMW with sawdust and dilution at 95% resulted in 51 and 26% germination of P. vulgaris and T. turgidum, respectively.
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Affiliation(s)
- Fatima Elayadi
- Marine Biotechnologies and Environment, Laboratory Sciences Faculty, Chouaïb Doukkali University, El Jadida, Morocco
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaïb Doukkali University, El Jadida, Morocco
| | - Mounia Achak
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaïb Doukkali University, El Jadida, Morocco.
- Chemical & Biochemical Sciences. Green Process Engineering, CBS, Mohammed VI Polytechnic University, Ben Guerir, Morocco.
| | - Wafaa Boumya
- Multidisciplinary Research and Innovation Laboratory, Sultan Moulay Slimane University of Beni Mellal, FP Khouribga, Morocco
| | - Noureddine Barka
- Multidisciplinary Research and Innovation Laboratory, Sultan Moulay Slimane University of Beni Mellal, FP Khouribga, Morocco
| | - Edvina Lamy
- Integrated Transformations of Renewable Matter (TIMR), Sorbonne University, University of Technology of Compiegne, UTC/ESCOM, EA 4297 TIMR, Compiegne, France
| | - Chakib El Adlouni
- Marine Biotechnologies and Environment, Laboratory Sciences Faculty, Chouaïb Doukkali University, El Jadida, Morocco
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21
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Hanif A, Aziz MA, Helal A, Abdelnaby MM, Qasem MAA, Khan A, Hakeem AS, Al-Betar ARF, Khan MY. CO 2 Adsorption on Pore-Engineered Carbons Derived from Jute Sticks. Chem Asian J 2023; 18:e202300481. [PMID: 37455604 DOI: 10.1002/asia.202300481] [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: 05/30/2023] [Revised: 07/08/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
CO2 capture is a practical approach to mitigating the impacts of global warming. Adsorption-based carbon capture is a clean and potentially energy-efficient method whose performance greatly depends on adsorbent design. In this study, we explored the use of jute-derived carbon as a high-performance adsorbent for CO2 capture. The carbons were produced by pyrolyzing powdered jute sticks with NaHCO3 as an activating agent at 500-700 °C. Impressive adsorption capacities of up to 2.5 mmol ⋅ g-1 and CO2 /N2 selectivities of up to 54 were achieved by adjusting the pore size distribution and surface functionalization. Based on the isotherm results, the working capacities, regenerabilities, and potentials for CO2 separation were determined for a practical vacuum swing adsorption process. The adsorbent materials were characterized by XRD, FTIR, Raman, FESEM and N2 sorption at 77 K. This study provides a general approach for designing adsorbents for various gas-separation applications.
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Affiliation(s)
- Aamir Hanif
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Aasif Helal
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Mahmoud M Abdelnaby
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Mohammed Ameen Ahmed Qasem
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Abuzar Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Abbas S Hakeem
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Abdul-Rahman F Al-Betar
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Mohd Yusuf Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
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22
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Sharafinia S, Rashidi A, Babaei B, Orooji Y. Nanoporous carbons based on coordinate organic polymers as an efficient and eco-friendly nano-sorbent for adsorption of phenol from wastewater. Sci Rep 2023; 13:13127. [PMID: 37573350 PMCID: PMC10423284 DOI: 10.1038/s41598-023-40243-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/07/2023] [Indexed: 08/14/2023] Open
Abstract
The major part of water pollutants includes of organic such as phenolic pollutant, thus there are every hazardous to environment. Present work is a comparative onto surface chemistry and adsorptive characteristics of coordinate organic polymer (Cop-150) and nanoporous carbon (NPC) prepared using solvothermal method. New NPC was successfully synthesized to remove of phenol. FT-IR, XRD, XPS, SEM, TGA, and BET techniques have been used to characterization and confirm physicochemical variation during preparing Cop-150 and NPC. Box-Behnken response surface methodology (BBRSM) was used to optimize four important factors of the pH (2-10), contact time (1-40 min), temperature (25-60 °C), and initial concentration of phenol (5-50 mg L-1). To analyze the data obtained from the adsorption of phenol by synthesized adsorbents, four linear, 2FI, quadratic and cubic models were examined, which the quadratic model was recognized as the best model. To the NPC the equal adsorption capacity 500 mg g-1 is achieved at the initial concentration of phenol = 49.252 mg L-1, contact time = 15.738 min, temperature = 28.3 °C, and pH 7.042. On the other hand, the adsorption capacity for Cop-150 in pH 4.638, the contact time = 19.695 min, the temperature = 56.8 °C, and the initial concentration of phenol = 6.902 mg L-1 was equal to 50 mg g-1. The experimental data at different conditions were investigated by some famous kinetic and isotherm models, which among them, were corresponded to the pseudo-second-order kinetic model and the Langmuir isotherm. Moreover, based to result of thermodynamics to the both Cop-150 and NPC, the adsorption process is exothermic and spontaneous. According to results the Cop-150 and NPC could be used for up to four and five cycles without significantly reducing their performance, respectively.
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Affiliation(s)
- Soheila Sharafinia
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Alimorad Rashidi
- Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran.
| | - Behnam Babaei
- Department of Chemistry, Faculty of Basic Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Yasin Orooji
- Material and Energy Research Center, Karaj, Alborz, Iran
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23
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Bhan C, Singh J, Sahu N, Koduru JR. Reutilization of carbon of waste filter cartridge after its surface modification for the fluoride removal from water by continuous flow process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:87483-87499. [PMID: 37422558 DOI: 10.1007/s11356-023-28573-y] [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: 12/28/2022] [Accepted: 06/29/2023] [Indexed: 07/10/2023]
Abstract
In the present study, the waste carbon cartridge of the water filter was modified and reutilized for defluoridation of water. The modified carbon was characterized by particle size analysis (PSA), Fourier transformed infrared spectroscopy (FTIR), zeta potential, pHzpc, energy-dispersive X-ray (EDS), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray crystallography (XRD). The adsorptive nature of modified carbon was investigated with pH (4-10), dose (1-5 g/L), contact time (0-180 min), temperature (25-55 °C), fluoride concentration (5-20 mg/L), and the effect of the competitive ions. Adsorption isotherm, kinetics, thermodynamics, and breakthrough studies were evaluated for fluoride uptake on surface-modified carbon (SM*C). Fluoride adsorption on the carbon accepted Langmuir model (R2 = 0.983) and pseudo-second-order kinetic (R2 = 0.956). The presence of HCO3- in the solution reduced the elimination of fluoride. The carbon was regenerated and reused four times; the removal percentage was decreased from 92 to 31.7%. This adsorption phenomenon showed exothermic behavior. The maximum fluoride uptake capacity of SM*C achieved 2.97 mg/g at 20 mg/L of initial concentration. The modified carbon cartridge of the water filter was successfully employed for fluoride removal from water.
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Affiliation(s)
- Chandra Bhan
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, India
| | - Jiwan Singh
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, India.
| | - Naincy Sahu
- Department of Environmental Sciences, Dr. Rammanohar Lohia Avadh University, Ayodhya, Uttar Pradesh, 224001, India
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea
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24
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Abugazleh MK, Ali HM, Chester JA, Al-Fa'ouri AM, Bouldin JL. Aquatic toxicity of hydroquinone and catechol following metal oxide treatment to Ceriodaphnia dubia and Pimephales promelas. ECOTOXICOLOGY (LONDON, ENGLAND) 2023:10.1007/s10646-023-02672-5. [PMID: 37306764 DOI: 10.1007/s10646-023-02672-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 06/13/2023]
Abstract
Metal oxides comprise a large group of chemicals used in water treatment to adsorb organic pollutants. The ability of titanium dioxide (TiO2) and iron (III) oxide (Fe2O3) to reduce the chronic toxicity of (phenolic) C6H6(OH)2 isomers, namely hydroquinone (HQ) and catechol (CAT) to Ceriodaphnia dubia and Pimephales promelas (less than 24 h-old) were investigated. The toxic endpoints following metal oxide treatment were compared to endpoints of untreated CAT and HQ. In chronic toxicity testing, HQ resulted in greater toxicity than CAT for both test organisms; the median lethal concentrations (LC50) for CAT were 3.66 to 12.36 mg.L-1 for C. dubia and P. promelas, respectively, while LC50 for HQ were 0.07 to 0.05 mg.L-1, respectively. Although both treated solutions presented lower toxic endpoints than those in the untreated solutions, Fe2O3 had a better potential to reduce the toxic effects of CAT and HQ than TiO2.
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Affiliation(s)
- Mohd Kotaiba Abugazleh
- Department of Chemistry and Physics, College of Science and Mathematics, Arkansas State University, Jonesboro, AR, 72467, USA.
| | - Hashim M Ali
- Department of Chemistry and Physics, College of Science and Mathematics, Arkansas State University, Jonesboro, AR, 72467, USA
| | - Jae A Chester
- Department of Biological Sciences, College of Science and Mathematics, Arkansas State University, Jonesboro, AR, 72467, USA
| | | | - Jennifer L Bouldin
- Department of Biological Sciences, College of Science and Mathematics, Arkansas State University, Jonesboro, AR, 72467, USA
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25
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Pham GTT, Vu HT, Pham TT, Thanh NN, Thuy VN, Tran HQ, Doan HV, Nguyen MB. Exploring the potential of ZnO-Ag@AgBr/SBA-15 Z-scheme heterostructure for efficient wastewater treatment: synthesis, characterization, and real-world applications. RSC Adv 2023; 13:12402-12410. [PMID: 37091624 PMCID: PMC10116339 DOI: 10.1039/d3ra01856c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/14/2023] [Indexed: 04/25/2023] Open
Abstract
This study reports on the synthesis and characterization of ZnO-Ag@AgBr/SBA-15 composites using natural halloysite clay from Yenbai Province, Vietnam, as a silica aluminum source. The synthesized materials demonstrated visible light absorption with a band gap energy range of 2.63-2.98 eV. The dual Z-scheme ZnO-Ag@AgBr/SBA-15 heterojunction exhibited superior catalytic performance compared to ZnO/SBA-15 and Ag@AgBr/SBA-15, owing to its improved electron transfer and reduced electron and hole recombination rate. In particular, the photocatalytic efficiency of ZnO-Ag@AgBr/SBA-15 was evaluated for the removal of harmful phenol red from wastewater under visible light irradiation. The photocatalytic process was optimized by varying the phenol red concentration, pH, and catalyst dosage, and showed that 98.8% of phenol red in 100 mL wastewater (pH = 5.5) can be removed using 40 mg of 20%ZnO-Ag@AgBr/SBA-15 within 120 min. Furthermore, the degradation pathway of phenol red was predicted using liquid chromatographic-mass spectrometry (LC-MS). Finally, the photocatalytic process was successfully tested using water samples collected from the four main domestic waste sources in Hanoi, including the To Lich River, the Hong River, the Hoan Kiem Lake, and the West Lake, demonstrating the high potential of the ZnO-Ag@AgBr/SBA-15 photocatalyst for phenol red degradation in real-world wastewater treatment applications.
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Affiliation(s)
- Giang T T Pham
- Faculty of Chemical Technology, Hanoi University of Industry 298 Minh Khai, Bac Tu Liem Ha Noi 10000 Vietnam
| | - Hoa T Vu
- Faculty of Chemical Technology, Hanoi University of Industry 298 Minh Khai, Bac Tu Liem Ha Noi 10000 Vietnam
| | - Tham Thi Pham
- Faculty of Chemical Technology, Hanoi University of Industry 298 Minh Khai, Bac Tu Liem Ha Noi 10000 Vietnam
| | - Nguyen Ngoc Thanh
- Faculty of Chemical Technology, Hanoi University of Industry 298 Minh Khai, Bac Tu Liem Ha Noi 10000 Vietnam
| | - Van Ngo Thuy
- Faculty of Chemical Technology, Hanoi University of Industry 298 Minh Khai, Bac Tu Liem Ha Noi 10000 Vietnam
| | - Hung Quang Tran
- Institute of Chemistry, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Ha Noi Vietnam
| | - Huan V Doan
- Department of Mechanical Engineering, University of Bristol Bristol BS8 1TH UK
| | - Manh B Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Ha Noi Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Ha Noi Vietnam
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26
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Khaliq A, Nazir R, Khan M, Rahim A, Asad M, Shah M, Khan M, Ullah R, Ali EA, Khan A, Nishan U. Co-Doped CeO 2/Activated C Nanocomposite Functionalized with Ionic Liquid for Colorimetric Biosensing of H 2O 2 via Peroxidase Mimicking. Molecules 2023; 28:molecules28083325. [PMID: 37110559 PMCID: PMC10145388 DOI: 10.3390/molecules28083325] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Hydrogen peroxide acts as a byproduct of oxidative metabolism, and oxidative stress caused by its excess amount, causes different types of cancer. Thus, fast and cost-friendly analytical methods need to be developed for H2O2. Ionic liquid (IL)-coated cobalt (Co)-doped cerium oxide (CeO2)/activated carbon (C) nanocomposite has been used to assess the peroxidase-like activity for the colorimetric detection of H2O2. Both activated C and IL have a synergistic effect on the electrical conductivity of the nanocomposites to catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB). The Co-doped CeO2/activated C nanocomposite has been synthesized by the co-precipitation method and characterized by UV-Vis spectrophotometry, FTIR, SEM, EDX, Raman spectroscopy, and XRD. The prepared nanocomposite was functionalized with IL to avoid agglomeration. H2O2 concentration, incubation time, pH, TMB concentration, and quantity of the capped nanocomposite were tuned. The proposed sensing probe gave a limit of detection of 1.3 × 10-8 M, a limit of quantification of 1.4 × 10-8 M, and an R2 of 0.999. The sensor gave a colorimetric response within 2 min at pH 6 at room temperature. The co-existing species did not show any interference during the sensing probe. The proposed sensor showed high sensitivity and selectivity and was used to detect H2O2 in cancer patients' urine samples.
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Affiliation(s)
- Abdul Khaliq
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Ruqia Nazir
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Muslim Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Abdur Rahim
- Department of Chemistry, COMSATS University Islamabad, Park Road, Islamabad 45550, Pakistan
| | - Muhammad Asad
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Mohibullah Shah
- Department of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Mansoor Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Essam A Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ajmir Khan
- School of Packaging, 448 Wilson Road, Michigan State University, East Lansing, MI 48824, USA
| | - Umar Nishan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
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27
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El-Qelish M, Elgarahy AM, Ibrahim HS, El-Kholly HK, Gad M, M. Ali ME. Multi-functional core-shell pomegranate peel amended alginate beads for phenol decontamination and bio-hydrogen production: Synthesis, characterization, and kinetics investigation. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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28
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Alobaidi DS, Alwared AI. Role of immobilised Chlorophyta algae in form of calcium alginate beads for the removal of phenol: isotherm, kinetic and thermodynamic study. Heliyon 2023; 9:e14851. [PMID: 37025864 PMCID: PMC10070660 DOI: 10.1016/j.heliyon.2023.e14851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
In this work, sodium alginate-immobilised Chlorophyta algae were evaluated for phenol uptake. The algae/alginate bead (AAB) characteristics were analysed by means of BET-BJH, FTIR, and SEM-EDX methods, while the adsorption performance of AABs with respect to phenol removal was investigated using batch studies. The parameters found to affect the biosorption capacity of AABs included pH, contact time, initial phenol concentration, adsorbent dosage, stirring rate, particle size, and temperature, with the optimal operating variables identified as a pH of 6, an initial phenol concentration of 50 mg/L, AAB dosage of 5 g/L, and a 200 rpm stirring rate. The adsorption process in such cases reached equilibrium within 120 min, demonstrating a maximum phenol elimination capacity of 9.56 mg/g at 30 °C. The isotherm and kinetic models used to determine this were evaluated using the Chi-square test (X2), the coefficient of determination (R2), and the value of equilibrium capacity, with results that revealed that the Freundlich isotherm provides the best fit for the relevant equilibrium data, as shown by its high R2 value (0.96) and low X2 value (1.16135); the theoretical data produced by that model were thus closer to the experimental data than that from the Langmuir model. Kinetic analysis showed that the phenol adsorption followed a pseudo-second-order kinetic model. The thermodynamic parameters were thus explored, revealing that the phenol biosorption process is based on spontaneous physisorption with an exothermic reaction due to negative (ΔG°) and (ΔH°) values. The low cost, natural origin, biodegradability, and eco-friendliness of algae/alginate bead sorbents also make them ideally suited for phenol removal in aqueous solutions.
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29
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Saleh TS, Badawi AK, Salama RS, Mostafa MMM. Design and Development of Novel Composites Containing Nickel Ferrites Supported on Activated Carbon Derived from Agricultural Wastes and Its Application in Water Remediation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16062170. [PMID: 36984050 PMCID: PMC10051921 DOI: 10.3390/ma16062170] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 05/14/2023]
Abstract
Recently, efficient decontamination of water and wastewater have attracted global attention due to the deficiency in the world's water sources. Herein, activated carbon (AC) derived from willow catkins (WCs) was successfully synthesized using chemical modification techniques and then loaded with different weight percentages of nickel ferrite nanocomposites (10, 25, 45, and 65 wt.%) via a one-step hydrothermal method. The morphology, chemical structure, and surface composition of the nickel ferrite supported on AC (NFAC) were analyzed by XRD, TEM, SEM, EDX, and FTIR spectroscopy. Textural properties (surface area) of the nanocomposites (NC) were investigated by using Brunauer-Emmett-Teller (BET) analysis. The prepared nanocomposites were tested on different dyes to form a system for water remediation and make this photocatalyst convenient to recycle. The photodegradation of rhodamine B dye was investigated by adjusting a variety of factors such as the amount of nickel in nanocomposites, the weight of photocatalyst, reaction time, and photocatalyst reusability. The 45NFAC photocatalyst exhibits excellent degradation efficiency toward rhodamine B dye, reaching 99.7% in 90 min under a simulated source of sunlight. To summarize, NFAC nanocomposites are potential photocatalysts for water environmental remediation because they are effective, reliable, and reusable.
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Affiliation(s)
- Tamer S. Saleh
- Department of Chemistry, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
- Correspondence: (T.S.S.); or (R.S.S.)
| | - Ahmad K. Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology, Giza 12588, Egypt
| | - Reda S. Salama
- Basic Science Department, Faculty of Engineering, Delta University for Science and Technology, Gamasa 11152, Egypt
- Correspondence: (T.S.S.); or (R.S.S.)
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30
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Three-Dimensional Printing of Recycled Polypropylene and Activated Carbon Coatings for Harmful Gas Adsorption and Antibacterial Properties. Polymers (Basel) 2023; 15:polym15051173. [PMID: 36904414 PMCID: PMC10006920 DOI: 10.3390/polym15051173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
In recent years, the utilization of three-dimensional (3D) printing has been expanding due to advances in technology and economic efficiency. One of the 3D printing technologies is fused deposition modeling, which can be used to create different kinds of products or prototypes from various polymer filaments. In this study, the activated carbon (AC) coating was introduced to the 3D outputs printed using recycled polymer materials to impart multi-functions such as adsorption of harmful gas and antimicrobial activities. A filament of uniform diameter (1.75 μm) and a filter template in the form of a 3D fabric shape were prepared through the extrusion and 3D printing processes, respectively, of the recycled polymer. In the next process, the 3D filter was developed by coating the nanoporous AC, produced from the pyrolysis fuel oil and waste PET, on the 3D filter template through direct coating. The 3D filters coated with the nanoporous activated carbon showed the enhanced adsorption capacity of 1038.74 mg of SO2 gas and the antibacterial properties of 49% removal of E. coli bacteria. As a model system, a functional gas mask that has harmful gas adsorption abilities and antibacterial properties has been produced by a 3D printing process.
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31
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Ouachtak H, El Guerdaoui A, El Haouti R, Haounati R, Ighnih H, Toubi Y, Alakhras F, Rehman R, Hafid N, Addi AA, Taha ML. Combined molecular dynamics simulations and experimental studies of the removal of cationic dyes on the eco-friendly adsorbent of activated carbon decorated montmorillonite Mt@AC. RSC Adv 2023; 13:5027-5044. [PMID: 36762089 PMCID: PMC9907573 DOI: 10.1039/d2ra08059a] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 01/31/2023] [Indexed: 02/11/2023] Open
Abstract
In recent years, the combination of experimental and theoretical study to explain adsorbate/adsorbent interactions has attracted the attention of researchers. In this context, this work aims to study the adsorption of two cationic dyes, namely methylene blue (MB) and crystal violet (CV), on a green adsorbent Montmorillonite@activated carbon (Mt@AC) composite and to explain the adsorption behavior of each dye by the molecular dynamics (MD) simulation method. The eco-friendly nanocomposite Mt@AC is synthesized and characterized by the analysis methods: XRD, FTIR, BET, TGA/DTA, SEM-EDS, EDS-mapping and zeta potential. The experimental results of adsorption equilibrium show that the adsorption of the two dyes is well suited to the Langmuir adsorption model. The maximum adsorption capacity of the two dyes reaches 801.7 mg g-1 for methylene blue and 1110.8 mg g-1 for crystal violet. The experimental kinetics data fit well with a pseudo-first order kinetic model for the two dyes with coefficient of determination R 2 close to unity, non-linear chi-square χ 2 close to zero and lower Root Mean Square Error RMSE (R 2 → 1 and χ 2 → 0, RMSE lower). Molecular dynamic simulations are run to gain insights on the adsorption process. According to the RDF analysis and interaction energy calculations, the obtained results reveal a better affinity of the CV molecule with both the AC sheet and montmorillonite framework as compared with MB. This finding suggests that CV is adsorbed to a larger extent onto the nanocomposite material which is in good agreement with the adsorption isothermal experiment observations.
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Affiliation(s)
- Hassan Ouachtak
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco .,Faculty of Applied Science, Ait Melloul, Ibn Zohr University Agadir Morocco
| | - Anouar El Guerdaoui
- Department of Chemistry, Faculty of Science, Ibn Zohr UniversityAgadirMorocco
| | - Rachid El Haouti
- Department of Chemistry, Faculty of Science, Ibn Zohr UniversityAgadirMorocco
| | - Redouane Haounati
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco
| | - Hamza Ighnih
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco
| | - Yahya Toubi
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco .,Faculty of Applied Science, Ait Melloul, Ibn Zohr University Agadir Morocco
| | - Fadi Alakhras
- College of Pharmacy, Middle East UniversityAmman11831Jordan
| | - Rabia Rehman
- Institute of Chemistry, University of the PunjabLahore54590Pakistan
| | - Naima Hafid
- Regional Center of Education and Training Souss MassaMorocco
| | - Abdelaziz Ait Addi
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco
| | - Mohamed Labd Taha
- Laboratory of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University Agadir Morocco
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Hussain OA, Hathout AS, Abdel-Mobdy YE, Rashed M, Abdel Rahim E, Fouzy A. Preparation and characterization of activated carbon from agricultural wastes and their ability to remove chlorpyrifos from water. Toxicol Rep 2023; 10:146-154. [PMID: 36714465 PMCID: PMC9879729 DOI: 10.1016/j.toxrep.2023.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/21/2023] Open
Abstract
Chlorpyrifos is an organophosphate insecticide linked to neurological dysfunctions, endocrine disturbance, cardiovascular illness, genotoxicity, histopathological abnormalities, immunotoxicity, and oxidative stress. Therefore, the aim of this study was to prepare activated carbon from agricultural waste to adsorb and remove chlorpyrifos from aqueous solutions, as well as to study the physicochemical characteristics of the prepared activated carbon.Activated carbon was prepared from agricultural waste (banana peels, orange peels, pomegranate peels and date stones). The activated carbon prepared showed an exterior surface that was irregular and full of cavities with Brunauer-Emmett-Teller(BET) surface areas of 94.26, 111.75, 183.89, and 289.86 m2/g for activated carbon prepared from orange peels, date stone, pomegranate peels, and banana peels respectively. The Scanning Electron Microscope (SEM) image revealed that the activated carbon's exterior surface was irregular and full of various shapes and sizes of cavities.The Energy Dispersive X-Ray (EDX) indicated the existence of carbon, oxygen, silicon and potassium in banana peels-derived activated carbon, whereas carbon, oxygen, silicon and potassium, in addition to aluminium, were detected in the pomegranate peels-derived activated carbon. The Fourier-Transform Infrared Spectroscopy (FTIR) analysis of prepared activated carbon revealed several functional groups, including carboxylic acid, carbon dioxide, and aromatic compounds. Results also showed that the activated carbon significantly removed chlorpyrifos from water, recording 97.6%, 90.6%, 71.48%, and 52.00 % for activated carbon prepared from pomegranate peels, banana peels, date stones and orange peels, respectively. The study concluded that agricultural waste-derived activated carbon could be employed as an alternative pesticide adsorbent.
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Affiliation(s)
- Omaima A. Hussain
- Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, Egypt
| | - Amal S. Hathout
- Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, Egypt
| | - Yasmin E. Abdel-Mobdy
- Entomology and Pesticides Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - M.M. Rashed
- Chemical Biochemistry Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - E.A. Abdel Rahim
- Chemical Biochemistry Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - A.S.M. Fouzy
- Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, Egypt
- Corresponding author.
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Wang CQ, Chen S, Huang DM, Huang QC, Tu MJ, Wu K, Liu YY. Human carcinogenic risk analysis and utilization of shale gas water-based drilling cuttings in road materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12741-12768. [PMID: 36114966 PMCID: PMC9483462 DOI: 10.1007/s11356-022-23006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Water-based drilling cuttings (WDC) generated during shale gas development will endanger human health and ecological security. The modern analytical techniques are used to analyze the organic pollutants in WDC, and the human health and ecological security risks of harmful pollutants in WDC under specific scenarios are evaluated. The results showed that the content of organic pollutants in WDC was evaluated by human health and safety risk assessment. The comprehensive carcinogenic risks of all exposure pathways of single pollutant benzo(a)anthracene, benzo(a)pyrene, benzo(k)fluoranthene, and indeno(1,2,3-cd)pyrene were acceptable. However, the cumulative carcinogenic risk of exposure to dibenzo(a,h)anthracene particles via skin exposure was not acceptable. It was considered that only dibenzo(a,h)anthracene had carcinogenic effect, and the risk control limit of dibenzo(a,h)anthracene in WDC was 1.8700 mg/kg by calculation. As well as, the "WDC-cement" gel composite structure was deeply analyzed, and the physical and chemical properties and mechanism of organic pollutants in cement solidified WDC were analyzed, which provided theoretical support for the study of WDC pavement cushion formula. Based on the above conclusions and combined with the actual site, by studying and adjusting the formula of WDC pavement cushion, the WDC pavement cushion was finally designed by 6% cement + 50% WDC + 44% crushed stone. The 7d unconfined compressive strength met the requirements of the Chinese standard "Technical Guidelines for Construction of Highway Roadbases" (JTG/T F20-2015). Also, the process route of WDC as road cushion product was sampled and analyzed. In addition, the leaching concentration of main pollutants all met the relevant standards of China. Therefore, this study can provide a favorable way for the efficient, safe, and environmentally friendly utilization of WDC, and ensure the ecological environment safety and human health safety of WDC in resource utilization.
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Affiliation(s)
- Chao-Qiang Wang
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
- Chongqing Haopan Energy Saving Technology Co., Ltd, Chongqing, 401329, China
- Chongqing Institute of Modern Construction Industry Development, Chongqing, 400066, China
| | - Shen Chen
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
| | - De-Ming Huang
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
| | - Qi-Cong Huang
- Chongqing Institute of Modern Construction Industry Development, Chongqing, 400066, China
| | - Min-Jie Tu
- CSCEC Strait Construction and Development Co., Ltd, Fuzhou, 350015, China
| | - Kai Wu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China.
| | - Yan-Yan Liu
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
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Gürkan EH, Akyol RB, Çoruh S. Kinetic, isotherm modeling analyses of the adsorption of phenol on activated carbon/alginate composites. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:832-839. [PMID: 36028953 DOI: 10.1080/15226514.2022.2112936] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The present study aimed to synthesize calcium alginate-commercial activated carbon composite beads (CA-AC) and calcium alginate-walnut shell biochar composite beads (CA-WSB) using activated carbon (AC), walnut shell biochar (WSB), and to apply its efficiency in phenol removal. The synthesized samples were characterized by energy-dispersive X-ray spectroscopy (EDS), X-ray fluorescence (XRF) spectrometry.The Brunauer, Emmett, and Teller (BET) method was used to obtain information about the samples' surface area and pore size. The kinetic model of phenol fitted well to the pseudo-second-order kinetic model. The isotherm model of phenol fitted well to the Langmuir isotherm model compared with other models. The maximum adsorption capacity was 76.92, 0.419, 8.130 1.375 mg/g for AC, WSB, CA-AC, CA-WSB.
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Affiliation(s)
- Elif Hatice Gürkan
- Department of Chemical Engineering, Faculty of Engineering, Ondokuz Mayıs University, Samsun, Turkey
| | - Rasim Berk Akyol
- Department of Environmental Engineering, Faculty of Engineering, Ondokuz Mayıs University, Samsun, Turkey
| | - Semra Çoruh
- Department of Environmental Engineering, Faculty of Engineering, Ondokuz Mayıs University, Samsun, Turkey
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Pala J, Le T, Kasula M, Rabbani Esfahani M. Systematic Investigation of PFOS Adsorption from Water by Metal Organic Frameworks, Activated Carbon, Metal Organic Framework@Activated carbon, and Functionalized Metal Organic Frameworks. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Enyoh CE, Wang Q, Ovuoraye PE. Response surface methodology for modeling the adsorptive uptake of phenol from aqueous solution using adsorbent polyethylene terephthalate microplastics. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Rout DR, Jena HM. Polyethylene glycol functionalized reduced graphene oxide coupled with zinc oxide composite adsorbent for removal of phenolic wastewater. ENVIRONMENTAL RESEARCH 2022; 214:114044. [PMID: 35985491 DOI: 10.1016/j.envres.2022.114044] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
The development of agricultural activities and industrialization recently has various adverse impacts on living organisms. The ever-increasing problem of organic pollution has been an environmental concern to the community. Among these, phenolic pollutants like 2,4-dichlorophenol (2,4-DCP), phenol, 2-chlorophenol (2-CP), and bisphenol-A (BPA) are priority toxic pollutants that are continuously released into environment from many industries. In this work, a biocompatible zinc oxide incorporated polyethylene glycol functionalized reduced graphene oxide composite (RGO-PEG-ZnO) was synthesized and explored for the adsorptive removal of toxic phenolic pollutants from water. The optimized adsorption parameters were solution pH 7, adsorption time 60 min, temperature 25 °C, and dosage 0.25 g/L. The isotherms were well fitted by the Langmuir model for BPA and phenol, whereas for 2-CP, and 2,4-DCP, Freundlich was the best-fitted model, and the maximum uptake of BPA, phenol, 2-CP, and 2,4-DCP were 485.756, 511.248, 531.804, 570.641 mg/g, respectively. The kinetic data for all the phenolic pollutants follow the pseudo-second-order model. The thermodynamic analysis shows that Gibb's free energy (ΔGo) values for all the pollutants were negative, confirming that the process was spontaneous. The positive values of change in enthalpy (ΔHo) 28.261, 37.205, 46.182, and 61.682 kJ/mol for BPA, phenol, 2-CP, and 2,4-DCP, respectively, confirm that the above adsorption process was endothermic. The composite can be used for up to five cycles with a small reduction in the removal percentage. Adsorption performance of the synthesized composite for synthetic industrial effluents shows that up to 86.54% removal occurred in 45 min adsorption time. Based on the remarkably rapid adsorption and high adsorption capacity, RGO-PEG-ZnO composite can be considered an efficient adsorbent for treating phenolic pollutants from wastewater.
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Affiliation(s)
- Dibya Ranjan Rout
- Department of Chemical Engineering, National Institute of Technology, Rourkela, 769008, Orissa, India.
| | - Hara Mohan Jena
- Department of Chemical Engineering, National Institute of Technology, Rourkela, 769008, Orissa, India.
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Kim DG, Boldbaatar S, Ko SO. Enhanced Adsorption of Tetracycline by Thermal Modification of Coconut Shell-Based Activated Carbon. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13741. [PMID: 36360624 PMCID: PMC9655672 DOI: 10.3390/ijerph192113741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Tetracycline (TC) is one of the most frequently detected antibiotics in various water matrices, posing adverse effects on aquatic ecosystems. In this study, coconut shell-based powdered activated carbon (PAC) was thermally modified under various temperatures to enhance TC adsorption. The PAC subjected to 800 °C (PAC800) showed the best TC adsorption. PAC and PAC800 were characterized using N2 adsorption/desorption isotherm, X-ray photoelectron spectroscopy, Raman spectroscopy, XRD, Boehm titration, and zeta potential analyses. Increases in the specific surface area, C/O ratio, C=O, surface charge, basic groups, and the number of stacked graphene layers along with a decrease in structural defects were observed for PAC800 compared to PAC. The TC adsorption was significantly improved for PAC800 compared to that of PAC, which is attributable to the enhanced electrostatic attraction and π-π EDA interactions induced by the changes in the properties. The Freundlich isotherm was the best fit indicating the heterogeneous nature, and the Freundlich constant of PAC and PAC800 increased from 85.8 to 119.5 and 132.1 to 178.6 (mg/g)‧(L/mg)1/n, respectively, when the temperature was increased from 296.15 to 318.15 K. The kinetics were well described by the pseudo-second-order adsorption model and the rate constant of PAC and PAC800 increased from 0.80 to 1.59 and from 0.72 to 1.29 × 10-3 g/mg‧min, respectively, as the temperature was increased. The activation energy of PAC and PAC800 was 23.7 and 19.6 J/mol, respectively, while the adsorption enthalpy was 196.7 and 98.5 kJ/mol, respectively, indicating endothermic nature. However, it was suggested that TC adsorption onto PAC800 was more favorable and was more contributed to by physisorption than that onto PAC. These results strongly suggest that the properties, adsorption capacity, and adsorption mechanisms of carbonaceous adsorbents can be significantly changed by simple thermal treatment. More, the results provide valuable information about the design of carbonaceous adsorbents with better performance where the structures and functional groups, which positively affect the adsorption, must be improved.
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Affiliation(s)
- Do-Gun Kim
- Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Shinnee Boldbaatar
- Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Seok-Oh Ko
- Department of Civil Engineering, Kyung Hee University, 1732, Deakyungdaero, Yongin 17104, Korea
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Liu Y, Zhou S, Liu R, Chen M, Xu J, Liao M, Mei J, Yang L. Study on amino-directed modification of oil sludge-derived carbon and its adsorption behavior of bisphenol A in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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40
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Rout DR, Jena HM. Synthesis of novel epichlorohydrin cross-linked β-cyclodextrin functionalized with reduced graphene oxide composite adsorbent for treatment of phenolic wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:73444-73460. [PMID: 35622280 DOI: 10.1007/s11356-022-21018-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
A novel composite consisting reduced graphene oxide-functionalized beta-cyclodextrin epichlorohydrin polymer (RGO-βCD-ECH) was synthesized for the treatment of phenolic wastewater. Batch study of phenolic pollutants (2,4-dichlorophenol, 2-chlorophenol, and phenol) was analyzed using the synthesized composite as an adsorbent from an aqueous solution. The optimized parameters were temperature 25 °C, adsorption time 60 min, solution pH 7, and dosage 0.25 g/L. The isotherm data were more suitably fitted by the Langmuir isotherm model. The maximum uptake for 2,4-dichlorophenol, phenol, and 2-chlorophenol was 702.853, 659.475, and 674.155 mg/g, respectively, at 25 ± 1 °C. The kinetic data for all the phenolic pollutants follow the pseudo-second-order model, and the rate was controlled by film diffusion. Thermodynamic data revealed that the process of removing phenolic pollutants is spontaneous and endothermic. The composite can be used up to five cycles with a small reduction in the removal. Adsorption performance of the synthesized composite for synthetic industrial effluents shows that up to 78% removal occurred in 60 min adsorption time. Based on the remarkably rapid adsorption and high adsorption capacity, the synthesized composite can be considered an efficient adsorbent for treating phenolic pollutants from wastewater.
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Affiliation(s)
- Dibya Ranjan Rout
- Department of Chemical Engineering, National Institute of Technology, Rourkela, 769008, Orissa, India
| | - Hara Mohan Jena
- Department of Chemical Engineering, National Institute of Technology, Rourkela, 769008, Orissa, India.
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Mathematical analysis of the effect of process conditions on the porous structure development of activated carbons derived from Pine cones. Sci Rep 2022; 12:15301. [PMID: 36096909 PMCID: PMC9468022 DOI: 10.1038/s41598-022-19383-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 08/29/2022] [Indexed: 12/02/2022] Open
Abstract
This paper presents the results of a study on the influence of the degree of impregnation and activation temperature on the formation of the porous structure of activated carbons (ACs) obtained from Pine cones by the chemical activation process using potassium hydroxide as an activator. The advanced new numerical clustering based adsorption analysis (LBET) method, together with the implemented unique numerical procedure for the fast multivariant identification were applied to nitrogen and carbon dioxide adsorption isotherms determined for porous structure characterization of the ACs. Moreover, the Quenched Solid Density Functional Theory (QSDFT) method was chosen to determine pore size distributions. The results showed a significant influence of the primary structure of Pine cones on the formation of the porous structure of the developed ACs. Among others, it was evidenced by a very high degree of surface heterogeneity of all the obtained ACs, irrespective of the degree of impregnation with potassium hydroxide and the activation temperature. Moreover, the analysis of carbon dioxide adsorption isotherms showed, that the porous structure of the studied ACs samples contains micropores accessible only to carbon dioxide molecules. The results also showed a significant advantage of the LBET method over those conventionally used for porous structure analysis based on Brunauer–Emmett–Teller (BET) and Dubinin–Raduskevich (DR) equations, because it takes into account surface heterogeneities. The novel analyses methods were more fully validated as a reliable characterization tool, by extending their application to the isotherms for ACs developed from the same precursor by phosphoric acid activation, and for samples arising from these ACs, further subjected to additional post-treatments. The effect of the raw material used as precursor was moreover analysed by comparison with previous reported results for other ACs. The complementarity of the results obtained with the LBET and QSDFT methods is also noteworthy, resulting in a more complete and reliable picture of the analyzed porous structures.
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Lignite-Based N-Doped Porous Carbon as an Efficient Adsorbent for Phenol Adsorption. Processes (Basel) 2022. [DOI: 10.3390/pr10091746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The treatment of phenolic-containing wastewater has received increased attention in recent years. In this study, the N-doped porous carbons were prepared from lignite with tripolycyanamide as the N source, and their phenol adsorption behaviors were investigated. Results clearly showed that the addition of tripolycyanamide largely improved the surface area, micropore volume, N content and thus the phenol adsorption capacity of lignite-based carbons. The N-doped sample prepared at 700 °C showed a surface area of 1630 m2/g and a phenol adsorption capacity as high as 182.4 mg/g at 20 °C, which were 2.0 and 1.6 times that of the lignite-based carbon without N-doping. Pseudo-second order and Freundlich adsorption isotherm models could better explain the phenol adsorption behaviors over lignite-based N-doped porous carbon. Theoretical calculations demonstrated that phenol adsorption energies over graphitic-N (−72 kJ/mol) and pyrrolic-N (−74 kJ/mol) groups were slightly lower than that over the N-free graphite layer (−71 kJ/mol), supporting that these N-containing groups contribute to enhance the phenol adsorption capacity. The adsorption mechanism of phenol over porous carbon might be interpreted by the π–π dispersion interactions between aromatic-ring and carbon planes, which could be enhanced by N-doping through increasing π electron densities in the carbon plane.
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Miri-Jahromi A, Mohammady Maklavany D, Rouzitalab Z, Ghaemi Khiavi S, Ghasemy E, Khedri M, Rezvantalab S, Sharafinia S, Rashidi A, Maleki R. Engineering of two-dimensional monolayers to phenolic compounds removal from wastewater: An experimental and computational insight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tsai WT, Lin YQ, Tsai CH, Shen YH. Production of Mesoporous Magnetic Carbon Materials from Oily Sludge by Combining Thermal Activation and Post-Washing. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5794. [PMID: 36013931 PMCID: PMC9414482 DOI: 10.3390/ma15165794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
In this work, the oily sludge (OS) from a local waste oil recycling plant was reused as a precursor for producing porous magnetic carbon composites (CC) by pyrolysis, followed by carbon dioxide activation. Based on the thermogravimetric analysis (TGA) of the OS feedstock, the preparation experiments were performed at 800−900 °C. From the pore analysis of the CC products, it indicated an increasing trend, as the BET surface area greatly increased from about 1.0 to 44.30 m2/g. In addition, the enhancement effect on the pore properties can be consistently obtained from the acid-washed CC products because the existing and new pores were reformed due to the leaching-out of inorganic minerals. It showed an increase from 32.27 to 94.45 m2/g and 44.30 to 94.52 m2/g at 850 and 900 °C, respectively, showing their mesoporous features. These porous and iron-containing features were also observed by the scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS). In addition, the adsorption removal of total organic carbon (TOC) in the raw wastewater, by the CC product, showed its high performance (>80%).
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Affiliation(s)
- Wen-Tien Tsai
- Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Yu-Quan Lin
- Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Chi-Hung Tsai
- Department of Resources Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Yun-Hwei Shen
- Department of Resources Engineering, National Cheng Kung University, Tainan 701, Taiwan
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Stala Ł, Ulatowska J, Polowczyk I. Copper(II) ions removal from model galvanic wastewater by green one-pot synthesised amino-hypophosphite polyampholyte. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129047. [PMID: 35533524 DOI: 10.1016/j.jhazmat.2022.129047] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/21/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
The amino-hypophosphite polyampholyte (AHP) obtained from cheap and safe building blocks lacks a typical ion-scavenger matrix derived from crude-oil intermediates like poly(divinylbenzene), which is an advantage to commercial solutions. AHP is characterised by sorption capacity comparable to some ion scavengers available on the market, as it was found that its maximum capacity in the temperature range from 298 K to 328 K varies between 114 and 146 mg Cu(II) g-1 of dry AHP. The possible application of the AHP in the Cu(II) removal process from galvanic effluent was investigated. The results show that it is possible to achieve a good removal rate for model wastewater. The inlet Cu2+ concentrations of model wastewater were 6.4 mg Cu(II) dm-3 and 36,2 mg Cu(II) dm-3, acidic and basic galvanic wastewater respectively. After the removal process concentrations were lowered to 1.3 mg Cu(II) dm-3 and 5.1 mg Cu(II) dm-3, for acidic and basic galvanic wastewater respectively. It was found that the presence of Ca(II) and Na(I) did not significantly influence the Cu(II) removal process. The obtained results indicate that the prepared more environmentally safe ion scavenger can be applicable in a wide range of metal ion removal processes.
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Affiliation(s)
- Łukasz Stala
- Department of Process Engineering and Technology of Polymers and Carbon Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego Street 27, Wrocław, Lower Silesia 50-370, Poland.
| | - Justyna Ulatowska
- Department of Process Engineering and Technology of Polymers and Carbon Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego Street 27, Wrocław, Lower Silesia 50-370, Poland
| | - Izabela Polowczyk
- Department of Process Engineering and Technology of Polymers and Carbon Materials, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego Street 27, Wrocław, Lower Silesia 50-370, Poland
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Balci B, Al Dafiry MHA, Erkurt FE, Basibuyuk M, Zaimoglu Z, Budak F, Yesiltas HK. Fe 2O 3-powder activated carbon/CaO 2 as an efficient hybrid process to remove a reactive dye from textile wastewater. CHEM ENG COMMUN 2022. [DOI: 10.1080/00986445.2022.2107511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Behzat Balci
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - M. H. Ahmed Al Dafiry
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - F. Elcin Erkurt
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - Mesut Basibuyuk
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - Zeynep Zaimoglu
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - Fuat Budak
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
| | - H. Kivanc Yesiltas
- Department of Environmental Engineering, Cukurova University, Balcali/Saricam, Adana, Turkey
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Removal of Cr(VI) by biochar derived via co-pyrolysis of oily sludge and corn stalks. Sci Rep 2022; 12:9821. [PMID: 35701474 PMCID: PMC9198065 DOI: 10.1038/s41598-022-14142-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/18/2022] [Indexed: 11/21/2022] Open
Abstract
The co-pyrolysis of oily sludge with biomass to prepare carbon materials is not only an effective way to mitigate oily sludge pollution, but it is also a method of obtaining carbon materials. In this study, a carbon material (OS-CS AC) was obtained by the direct co-pyrolysis of oily sludge (OS) and corn stalks (CS) and then applied to Cr(VI) removal. According to the hydroxy and carboxy masking experiments and the characterization of OS-CS AC by FT-IR, SEM, XPS, XRD, and N2 physical adsorption–desorption, Cr(VI) can be adsorbed efficiently through pore filling, the surface oxygen-containing functional groups can promote the reduction of Cr(VI) to Cr(III) through electron donors, and the greater the electrostatic attraction between the electron-donating functional groups of OS-CS AC and the Cr(VI) is, the stronger the ability to remove Cr(VI). In addition, the removal process was discussed, and the results indicated that the McKay kinetic model, Langmuir isotherm model and Van't Hoff thermodynamic model were the most suitable models for removal. The main factors affecting the removal of Cr(VI) were discussed, and the removal of Cr(VI) reached 99.14%, which gives a comprehensive utilization way of oily sludge and corn stalks.
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Preparation and Characterization of Insulating Panels from Recycled Polylaminate (Tetra Pak) Materials. SUSTAINABILITY 2022. [DOI: 10.3390/su14116858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Eco-sustainability and the reuse of materials are highly topical issues. In fact, in recent years, much study and research has been developed on this aspect, making the eco-sustainability of materials a real need. Polylaminate containers, more commonly called Tetra Pak containers, represent the most used packaging in the world. This work proposes a new strategy for the reuse of discarded polylaminate containers in order to create panels that can be used in construction and in particular as insulating panels. The proposed thermal method has been optimized in terms of operating variables such as time, temperature, pressure, number of polylaminate sheets. The results obtained show that the proposed thermal method is suitable for obtaining panels with characteristics suitable for use in green building. The advantage of the thermal method is that it does not use chemical or other binders and moreover uses only and exclusively sheets of recycled polylaminate.
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Adsorptive Behavior of Tartaric Acid Treated Holarrhena antidysenterica and Citrullus colocynthis Biowastes for Decolourization of Congo Red Dye from Aqueous Solutions. J CHEM-NY 2022. [DOI: 10.1155/2022/5724347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of the present work is to eradicate Congo red (CR) dye from aqueous solutions since the dye compounds are harmful to human life and the environment leading to detrimental results. For this purpose, Holarrhena antidysenterica (HA) and Citrullus colocynthis (CC) adsorbents were used for the adsorptive removal of Congo red dye from wastewaters. The unmodified adsorbents (U-HA and U-CC) were chemically modified using tartaric acid (TA). Morphological structures were examined by FTIR and SEM. Batch adsorption studies were tested at a variety of pH, time exposure, temperatures, and adsorbent dosages. Thermodynamic parameters such as Gibbs free energy (
), enthalpy (
), entropy changes (
), and energy of activation (
) were also calculated. The results revealed that tartaric acid-Citrullus colocynthis (TA-CC) gave optimum conditions of time of contact (35 min), temperature conditions (40°C), pH (3), and dosage of adsorbent (1.6 g) for maximum dye removal. Tartaric acid-Holarrhena antidysenterica (TA-HA) gave equilibrium time of contact (30 min), temperature (40°C), and pH optimum (2) along with a 1.6 g dosage of adsorbent. Mechanistic understanding of adsorption isotherm provided that the Langmuir model was followed by raw and modified adsorbents. Maximum adsorption capacities
attained were 60.61 (mg g-1), 128.21 (mg g-1), 87.71 (mg g-1), and 131.57 (mg g-1), respectively, for U-HA, TA-HA, U-CC, and TA-CC. The results of kinetic modeling displayed a high value of
(0.99) along with minimal error (RMSE) for dye removal showing that the pseudo-second-order kinetic model has acceptable accuracy. Fourier transform infrared proposed the electrostatic, pi-pi interactions, and hydrogen bonding as dominant adsorption mechanisms at acidic pH, respectively. Rate-determining steps comprise both surface and intraparticle diffusions. Thermodynamics indicated that the dye adsorption of CR is spontaneous, exothermic, and favorable in nature. These agricultural wastes due to specific points such as low cost, availability, and high removal rates of adsorption are highly competent for the expulsion of anionic dye like CR from wastewaters.
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Phomrak S, Phisalaphong M, Zhang Newby BM. Surface Wettability of Cellulose Sponges on Effective Oil Uptake. ACS APPLIED BIO MATERIALS 2022; 5:2622-2632. [PMID: 35543617 DOI: 10.1021/acsabm.2c00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Designing absorbents having specific wettability toward both oil and water is the key for selective and effective oil absorption and removal. For this purpose, establishing explicit correlations between surface tension of oils and surface wettability of absorbent is crucial. In this study, we modified common low-cost cellulose sponges with various organosilanes to achieve a range of hydrophobicity/oleophilicity and then assessed their oil uptake selectivity and capability. Oil uptake was followed as mass uptake versus time and analyzed based on the spreading coefficient (S) of a liquid over a solid surface. The results showed that sponges needed to be hydrophobic, not necessarily superhydrophobic, to selectively absorb oil from an oil/water mixture. To achieve a fast uptake and a high uptake capacity, an S ≥ 0 was necessary, that is, when the sponges were completely wet by the oil. Increasing the porosity of cellulose sponge led to a slight increase in oil uptake capacity, and a greater increase resulted when bacterial cellulose sponges that consisted of smaller and more uniform voids/pores were used. S ≥ 0 could be used as a criterion for evaluating effective and rapid oil uptake for porous absorbents, especially for those containing heterogeneous pore structures, such as common cellulose sponges.
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Affiliation(s)
- Sirilak Phomrak
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.,Department of Chemical, Biomolecular and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
| | - Muenduen Phisalaphong
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bi-Min Zhang Newby
- Department of Chemical, Biomolecular and Corrosion Engineering, The University of Akron, Akron, Ohio 44325-3906, United States
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