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Yin C, Sun Z, Yang Y, Cui M, Zheng J, Zhang Y. Rapid in situ formation of κ-carrageenan-carboxymethyl chitosan-kaolin clay hydrogel films enriched with arbutin for enhanced preservation of cherry tomatoes. Int J Biol Macromol 2024; 273:132957. [PMID: 38848837 DOI: 10.1016/j.ijbiomac.2024.132957] [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: 01/27/2024] [Revised: 05/25/2024] [Accepted: 06/04/2024] [Indexed: 06/09/2024]
Abstract
Food waste resulting from perishable fruits and vegetables, coupled with the utilization of non-renewable petroleum-based packaging materials, presents pressing challenges demanding resolution. This study addresses these critical issues through the innovative development of a biodegradable functional plastic wrap. Specifically, the proposed solution involves the creation of a κ-carrageenan/carboxymethyl chitosan/arbutin/kaolin clay composite film. This film, capable of rapid in-situ formation on the surfaces of perishable fruits, adeptly conforms to their distinct shapes. The incorporation of kaolin clay in the composite film plays a pivotal role in mitigating water vapor and oxygen permeability, concurrently bolstering water resistance. Accordingly, tensile strength of the composite film experiences a remarkable enhancement, escalating from 20.60 MPa to 34.71 MPa with the incorporation of kaolin clay. The composite film proves its efficacy by preserving cherry tomatoes for an extended period of 9 days at 28 °C through the deliberate delay of fruit ripening, respiration, dehydration and microbial invasion. Crucially, the economic viability of the raw materials utilized in the film, coupled with the expeditious and straightforward preparation method, underscores the practicality of this innovative approach. This study thus introduces an easy and sustainable method for preserving perishable fruits, offering a cost-effective and efficient alternative to petroleum-based packaging materials.
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Affiliation(s)
- Chao Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; College of Pharmacy, Xinjiang Medical University, Urumqi 830011, China
| | - Zhifang Sun
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Yufan Yang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Miao Cui
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jun Zheng
- Institute of Integrative Medicine, Department of Integrated Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China.
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2
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Kurtulbaş E, Ciğeroğlu Z, Şahin S, El Messaoudi N, Mehmeti V. Monte Carlo, molecular dynamic, and experimental studies of the removal of malachite green using g-C 3N 4/ZnO/Chitosan nanocomposite in the presence of a deep eutectic solvent. Int J Biol Macromol 2024; 274:133378. [PMID: 38914401 DOI: 10.1016/j.ijbiomac.2024.133378] [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: 01/14/2024] [Revised: 05/23/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Deep-eutectic solvents (DES) have emerged as promising candidates for preparing nanocomposites. In this study, a DES-based graphitic carbon nitride (g-C3N4)/ZnO/Chitosan (Ch) nanocomposite was synthesized to remove malachite green (MG) dye from water. The DES was prepared by mixing and heating citric acid as a hydrogen bond acceptor and lactic acid as a hydrogen bond donor. This is the first report of the removal of MG using DES-based nanocomposites. Experiments on kinetics and isothermal adsorption were conducted to systematically explore the adsorption performances of nanocomposite toward dye. At 25 °C, the highest adsorption performance was obtained with alkaline media (>90 % removal). The greatest adsorption capacity (qm) was 59.52 mg g-1 at conditions (30 mg L-1 MG solution, pH 9, 3 mg nanocomposite per 10 mL of MG solution, 25 °C, 150 rpm, and 150 min) based on the calculation from the best-fitting isotherm model (Langmuir). The adsorption process was most appropriately kinetically described by the PSO model. The Monte Carlo (MC) and molecular dynamic (MC) results are correlated with experimental findings to validate the theoretical predictions and enhance the overall understanding of the adsorption process. Electronic structure calculations reveal the nature of interactions, including hydrogen bonding and electrostatic forces, between the nanocomposite and MG molecules.
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Affiliation(s)
- Ebru Kurtulbaş
- Istanbul University-Cerrahpasa, Faculty of Engineering, Chemical Engineering Department, 34320 Avcilar, Istanbul, Türkiye
| | - Zeynep Ciğeroğlu
- Uşak University, Faculty of Engineering and Sciences, Chemical Engineering Department, 64300 Uşak, Türkiye.
| | - Selin Şahin
- Istanbul University-Cerrahpasa, Faculty of Engineering, Chemical Engineering Department, 34320 Avcilar, Istanbul, Türkiye
| | - Noureddine El Messaoudi
- Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Ibn Zohr University, Agadir 80000, Morocco
| | - Valbonë Mehmeti
- University of Prishtina, Faculty of Agriculture and Veterinary, Prishtina, Kosovo
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3
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Keshu, Rani M, Shanker U. Synthesis and characterization of novel guar gum based waste material derived nanocomposite for effective removal of hexabromocyclododecane and lindane. Int J Biol Macromol 2024; 268:131535. [PMID: 38631586 DOI: 10.1016/j.ijbiomac.2024.131535] [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: 12/15/2023] [Revised: 04/01/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Herein, efficient degradation of hexabromocyclododecane (HBCD) and Lindane, a persistent organic pollutant using guar gum based calcium oxide doped silicon dioxide (GG-CaO@SiO2) has been reported. The nanocomposite was prepared by waste egg shell (CaO) and rice husk (SiO2) was well characterized. The maximum degradation of HBCD and Lindane were observed at 8 mg catalyst loading, neutral pH, and 2 mg L-1 of pollutant amount. The photocatalytic performance of GG-CaO@SiO2 for HBCD and Lindane photodegradation was evaluated, and it was found that the rate constant increased in the order of GG-CaO@SiO2 > CaO@SiO2 > GG. The polymeric GG-CaO@SiO2 nanocomposite showed maximum removal of both pollutants due to higher surface area (70 m2 g-1) and synergistic interactions among GG moieties. It achieved HBCD and Lindane elimination rates of 94 % and 90 % by photo-adsorptive degradation within 150 min. Meanwhile, the leaching of HBCD from expanded polystyrene (EPS) materials (0.14 ± 0.05 ppm) underwater with different time intervals and degradation of leachate HBCD were also assessed. The eradication of the pollutant manifested first-order kinetics, with the Langmuir adsorption. LC-MS analysis confirmed that GG-CaO@SiO2 effectively breaks down complex structure toxic pollutants into safer metabolites under natural sunlight exposure. The polymeric GG-CaO@SiO2 nanocomposite showed notable reusability up to ten cycle promotes sustainability.
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Affiliation(s)
- Keshu
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology Jalandhar, Jalandhar 144008, Punjab, India; Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur 302017, Rajasthan, India
| | - Manviri Rani
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology Jalandhar, Jalandhar 144008, Punjab, India.
| | - Uma Shanker
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur 302017, Rajasthan, India.
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Abbasi A, Ahmad I, Abd El-Gawad HH, Alshahrani WA, Alqarni ND, El-Bahy ZM, Ikram S. Appraisal of the adsorption potential of novel modified gellan gum nanocomposite for the confiscation of methylene blue and malachite green. Int J Biol Macromol 2024; 259:129221. [PMID: 38191115 DOI: 10.1016/j.ijbiomac.2024.129221] [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: 10/14/2023] [Revised: 12/13/2023] [Accepted: 01/02/2024] [Indexed: 01/10/2024]
Abstract
In the present investigation a novel, environmentally affable and economical, modified gellan gum nanocomposite (MAA-g-GG/Ppy/MMT) was fabricated via free-radical polymerization for the liquid-phase mitigation of Methylene blue (MB) and Malachite green (MG) dyes. The innovation of this work is substantiated by the intentional combination of diverse materials, the strategic incorporation of polypyrrole for enhanced adsorption, and the thoughtful addition of MMT as a nanofiller to address mechanical strength and improve adsorption capacity. The physico-chemical facets of MAA-g-GG/Ppy/MMT and its interaction with the dye molecules were elucidated using FT-IR, SEM-EDX, BET, TEM, and XRD techniques. The optimum conditions for the sorption of MB and MG were deemed to be dosage (1.2 g/L for both dyes), contact time (50 min for both dyes), initial MG/MB concentration (MB = 40 mg/L & MG = 30 mg/L), and pH (MB = 10 & MG = 7). The Freundlich isotherm was identified as the most suitable model, as evidenced by the highest R2 value (∼0.999), indicating multilayer adsorption. The pseudo second-order model appraised the kinetic data. Thermodynamic findings revealed the adsorption process to be spontaneous, viable and exothermic which was ascertained by negative ∆H⸰ values (-22.8 kJ/mol for MB and -18.3 kJ/mol for MG). The substantial Langmuir adsorption capacity (Qm: MG =185.185; MB = 344.827) can be ascribed to the reason for strong interactions between MAA-g-GG/Ppy/MMT and dyes. The high reliability of MAA-g-GG/Ppy/MMT was determined by the regeneration studies that worked up to four cycles for both dyes. The real water (distilled water, tap water, and river water) samples spiked with MG/MB demonstrated a substantial uptake of dyes (>85 %) and the marginal influence of ionic strength on the adsorptive potential of MAA-g-GG/Ppy/MMT validated its efficacy for the decontamination of real effluents. The forces of attraction between the dyes and MAA-g-GG/Ppy/MMT included van der Waals, electrostatic forces of attraction, and π-π interaction. This green, economical, and viable MAA-g-GG/Ppy/MMT will prove to be an efficient adsorbent for the decontamination process of sequestration of dyes to achieve a sustainable environment.
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Affiliation(s)
- Arshiya Abbasi
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Iftkhar Ahmad
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Hala H Abd El-Gawad
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir 61421, Saudi Arabia
| | - Wafa A Alshahrani
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia
| | - Nawal D Alqarni
- Department of Chemistry, College of Science, University of Bisha, Bisha 61922, Saudi Arabia
| | - Zeinhom M El-Bahy
- Department of Chemistry, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Saiqa Ikram
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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Mittal M, Tripathi S, Shin DK. Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges. Polymers (Basel) 2024; 16:294. [PMID: 38276702 PMCID: PMC10818902 DOI: 10.3390/polym16020294] [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: 12/15/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
Essential for human development, water is increasingly polluted by diverse anthropogenic activities, containing contaminants like organic dyes, acids, antibiotics, inorganic salts, and heavy metals. Conventional methods fall short, prompting the exploration of advanced, cost-effective remediation. Recent research focuses on sustainable adsorption, with nano-modifications enhancing adsorbent efficacy against persistent waterborne pollutants. This review delves into recent advancements (2020-2023) in sustainable biopolymeric nanocomposites, spotlighting the applications of biopolymers like chitosan in wastewater remediation, particularly as adsorbents and filtration membranes along with their mechanism. The advantages and drawbacks of various biopolymers have also been discussed along with their modification in synthesizing biopolymeric nanocomposites by combining the benefits of biodegradable polymers and nanomaterials for enhanced physiochemical and mechanical properties for their application in wastewater treatment. The important functions of biopolymeric nanocomposites by adsorbing, removing, and selectively targeting contaminants, contributing to the purification and sustainable management of water resources, have also been elaborated on. Furthermore, it outlines the reusability and current challenges for the further exploration of biopolymers in this burgeoning field for environmental applications.
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Affiliation(s)
- Mona Mittal
- Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Greater Noida 201310, Uttar Pradesh, India
| | - Smriti Tripathi
- Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Greater Noida 201310, Uttar Pradesh, India
| | - Dong Kil Shin
- School of Mechanical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
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Alhoshan M, Shukla AK, Alam J, Hamid AA. Graphene Oxide-Polyphenylsulfone Nanocomposite Beads for Paracetamol Removal from Aqueous Solution. MEMBRANES 2023; 14:9. [PMID: 38248699 PMCID: PMC10818697 DOI: 10.3390/membranes14010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024]
Abstract
This study introduces a promising and practical method for the removal of paracetamol from aqueous environments, employing graphene oxide-polymer nanocomposite beads. The approach involves the utilization of a straightforward and facile phase inversion method, offering a convenient and efficient one-step process for the creation of adsorbent beads by integrating polymers and graphene oxide (GO). The synthesized nanocomposite beads are tailored for the removal of paracetamol from simulated wastewater in batch systems. Extensive characterization techniques including XPS, FTIR, SEM, TGA, and zeta potential analysis are employed to scrutinize the chemical properties and structural attributes of the prepared beads. The investigation explores the impact of critical parameters such as adsorbent dosage, adsorption duration, initial paracetamol concentration, and solution pH on the adsorption process. These nanocomposite beads exhibit an exceptional paracetamol removal efficiency, achieving up to 99% removal. This research not only contributes to the advancement of efficient and sustainable adsorbent materials for pollutant removal but also underscores their potential for environmentally friendly and cost-effective solutions in the domain of wastewater treatment.
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Affiliation(s)
- Mansour Alhoshan
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.)
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Arun Kumar Shukla
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Javed Alam
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Ali Awadh Hamid
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia; (M.A.)
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7
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Jabeen S, Alam S, Shah LA, Zahoor M, Naveed Umar M, Ullah R. Novel hydrogel poly (GG- co-acrylic acid) for the sorptive removal of the color Rhodamine-B from contaminated water. Heliyon 2023; 9:e19780. [PMID: 37809951 PMCID: PMC10559120 DOI: 10.1016/j.heliyon.2023.e19780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
Textile effluent's treatment is highly desired due to the presence of hazardous, water-soluble and non-biodegradable dyes that not only have harmful effect on the environment but on living beings as well. Treatment of these pollutants by sorption through biosorbents is considered to be a best method of choice due to greener nature of the processes. In this connection hydrogel sorbents might be an intriguing option due to its straightforward application, great efficacy, easy synthesis, rapid turnaround, and potential of recycling. Herein, novel hydrogel was prepared using Gellan Gum and acrylic acid (GG-co-AAc) which were then characterized by instrumental techniques like UV/visible and FTIR spectroscopy, SEM, EDX and XRD. The anionic hydrogel's adsorption capacity, swelling behavior, and sorption potential were determined using Rhodamine-B as potential environmental pollutant. The hydrogel exhibited an impressive adsorption capacity of 1250 mg/g. Swelling experiments were performed in Milli-Q distilled water at different pH levels, reaching maximum swelling of 3230% after 23 h as determined through Fickian diffusion. At pH 7, the anionic hydrogel's sorption potential was thoroughly studied in the subsequent experiments. The adsorption process was found to follow the Langmuir isotherm, indicating a monolayer adsorption mechanism supported by higher R2 values compared to the Freundlich isotherm. Thermodynamic analysis revealed the exothermic nature of the adsorption process, with a negative enthalpy value of -11371 KJmol-1 and negative entropy value of -26.39 Jmol-1K-1, suggesting a less ordered system. These findings provide valuable insights into the adsorption characteristics and potential applications of the synthesized anionic hydrogel.
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Affiliation(s)
- Salma Jabeen
- Department of Chemistry, University of Malakand, Chakdara Dir Lower, KPK, 18800, Pakistan
| | - Sultan Alam
- Department of Chemistry, University of Malakand, Chakdara Dir Lower, KPK, 18800, Pakistan
| | - Luqman Ali Shah
- National Center of Excellence in Physical Chemistry (NCE), University of Peshawar, Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Chakdara Dir Lower, KPK, 18800, Pakistan
| | | | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Hou Y, Liu F, Nie C, Li Z, Tong M. Boosting Exciton Dissociation and Charge Transfer in Triazole-Based Covalent Organic Frameworks by Increasing the Donor Unit from One to Two for the Efficient Photocatalytic Elimination of Emerging Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:11675-11686. [PMID: 37486062 DOI: 10.1021/acs.est.3c03711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
As novel photocatalysts, covalent organic frameworks (COFs) have potential for water purification. Insufficient exciton dissociation and low charge mobility in COFs yet restricted their photocatalytic activity. Excitonic dissociation and charge transfer in COFs could be optimized via regulating the donor-acceptor (D-A) interactions through adjusting the number of donor units within COFs, yet relevant research is lacking. By integrating the 1,2,4-triazole or bis-1,2,4-triazole unit with quinone, we fabricated COF-DT (with a single donor unit) and COF-DBT (with double donor units) via a facile sonochemical method and used to decontaminate emerging contaminants. Due to the stronger D-A interactions than COF-DT, the exciton binding energy was lower for COF-DBT, facilitating the intermolecular charge transfer process. The degradation kinetics of tetracycline (model contaminant) by COF-DBT (k = (12.21 ± 1.29) × 10-2 min-1) was higher than that by COF-DT (k = (5.11 ± 0.59) × 10-2 min-1) under visible-light irradiation. COF-DBT could efficiently photodegrade tetracycline under complex water chemistry conditions and four real water samples. Moreover, six other emerging contaminants, both Gram-negative and Gram-positive strains, could also be effectively eliminated by COF-DBT. High tetracycline degradation performance achieved in a continuous-flow system and in five reused cycles in both laboratory and outdoor experiments with sunlight irradiation showed the stability and the potential for the practical application of COF-DBT.
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Affiliation(s)
- Yanghui Hou
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Fuyang Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Chenyi Nie
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Zhengmao Li
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
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9
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Silva EC, Soares VR, Fajardo AR. Removal of pharmaceuticals from aqueous medium by alginate/polypyrrole/ZnFe 2O 4 beads via magnetic field enhanced adsorption. CHEMOSPHERE 2023; 316:137734. [PMID: 36608886 DOI: 10.1016/j.chemosphere.2022.137734] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/07/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
The physicochemical and structural characteristics of the magnetic materials can be modulable due to exposition to a magnetic field, which allows, for example, to enhance its adsorption performance. In this sense, this study describes the preparation of magnetic beads of alginate/polypyrrole/ZnFe2O4 (Alg/PPy/ZnFe2O4) and investigates the effect of an external magnetic field (EMF) on their adsorption performance towards two overconsumed drugs, acetaminophen (ACT) and ibuprofen (IBU). Characterization analyses confirmed the composite formation and magnetic nature of Alg/PPy/ZnFe2O4. Conversely to the pristine beads (Alg/PPy), the presence of an EMF altered the swelling and pHPZC behavior of the magnetic beads, indicating that these properties are affected by this external stimulus. Batch experiments revealed that the amount of ACT and IBU adsorbed by Alg/PPy/ZnFe2O4 in 60-70 min is appreciably high (106.7 ad 108.2 mg/g). The presence of an EMF modulated the structure of Alg/PPy/ZnFe2O4 beads enhancing their adsorption capacity towards ACT and IBU by 14% and 12% compared to Alg/PPy. Kinetic analysis revealed that the adsorption of both drugs on Alg/PPy/ZnFe2O4 followed a pseudo-second-order. Besides, the adsorption mechanism was fitted by the Freundlich isotherm. Reuse experiments showed that the magnetic beads keep a high adsorption capacity for both drugs even after ten consecutive reuse cycles. The results presented here suggest that magnetic-responsive materials like Alg/PPy/ZnFe2O4 are prominent and modulable tools for improving the treatment of water/wastewater containing this class of contaminants.
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Affiliation(s)
- Emilly C Silva
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas, RS, Brazil
| | - Victória R Soares
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas, RS, Brazil
| | - André R Fajardo
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas, RS, Brazil.
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10
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Polysaccharide-Based Multifunctional Hydrogel Bio-Adhesives for Wound Healing: A Review. Gels 2023; 9:gels9020138. [PMID: 36826308 PMCID: PMC9957293 DOI: 10.3390/gels9020138] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 02/10/2023] Open
Abstract
Wound healing is a long-term and complex biological process that involves multiple hemostasis, inflammation, proliferation, and remodeling stages. In order to realize comprehensive and systematic wound management, appropriate wound treatment bio-adhesives are urgently needed. Hydrogel bio-adhesives have excellent properties and show unique and remarkable advantages in the field of wound management. This review begins with a detailed description of the design criteria and functionalities of ideal hydrogel bio-adhesives for wound healing. Then, recent advances in polysaccharide-based multifunctional hydrogel bio-adhesives, which involve chitosan, hyaluronic acid, alginate, cellulose, dextran, konjac glucomannan, chondroitin sulfate, and other polysaccharides, are comprehensively discussed. Finally, the current challenges and future research directions of polysaccharide-based hydrogel bio-adhesives for wound healing are proposed to stimulate further exploration by researchers.
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Marin MM, Albu Kaya M, Kaya DA, Constantinescu R, Trica B, Gifu IC, Alexandrescu E, Nistor CL, Alexa RL, Ianchis R. Novel Nanocomposite Hydrogels Based on Crosslinked Microbial Polysaccharide as Potential Bioactive Wound Dressings. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16030982. [PMID: 36769988 PMCID: PMC9920030 DOI: 10.3390/ma16030982] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 05/31/2023]
Abstract
A multitude of dressings have been developed to promote wound repair, such as membranes, foams, hydrocolloids and hydrogels. In this study, a crosslinked polysaccharide hydrogel was mixed with a bioactive ingredient to synthesize a novel nanocomposite material to be used in wound healing. Variation of the ratio between hydrogel components was followed and its effect was analyzed in regard to swelling, degradation rate and thermo-mechanical behavior. The resulting crosslinked structures were characterized by FTIR and microscopy analyses. The antimicrobial activity of the crosslinked hydrogels loaded with bioactive agent was evaluated using two bacterial strains (Gram-positive Staphylococcus aureus and Gram-negative bacteria Escherichia Coli). All the results showed that the new synthesized biopolymer nanocomposites have adequate properties to be used as antibacterial wound dressings.
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Affiliation(s)
- Maria Minodora Marin
- National Research and Development Institute for Textile and Leather, Division Leather and Footwear Research Institute, Department of Collagen, 93 Ion Minulescu Str., 031215 Bucharest, Romania
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1–7 Polizu Street, 01106 Bucharest, Romania
| | - Madalina Albu Kaya
- National Research and Development Institute for Textile and Leather, Division Leather and Footwear Research Institute, Department of Collagen, 93 Ion Minulescu Str., 031215 Bucharest, Romania
| | - Durmus Alpaslan Kaya
- National Research and Development Institute for Textile and Leather, Division Leather and Footwear Research Institute, Department of Collagen, 93 Ion Minulescu Str., 031215 Bucharest, Romania
- Faculty of Agriculture, Hatay Mustafa Kemal University, Hatay 31060, Turkey
| | - Roxana Constantinescu
- National Research and Development Institute for Textile and Leather, Division Leather and Footwear Research Institute, Department of Collagen, 93 Ion Minulescu Str., 031215 Bucharest, Romania
| | - Bogdan Trica
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Ioana Catalina Gifu
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Elvira Alexandrescu
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Cristina Lavinia Nistor
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
| | - Rebeca Leu Alexa
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1–7 Polizu Street, 01106 Bucharest, Romania
| | - Raluca Ianchis
- National Research and Development Institute for Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 0600021 Bucharest, Romania
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12
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Performance of Dye Removal from Single and Binary Component Systems by Adsorption on Composite Hydrogel Beads Derived from Fruits Wastes Entrapped in Natural Polymeric Matrix. Gels 2022; 8:gels8120795. [PMID: 36547319 PMCID: PMC9777880 DOI: 10.3390/gels8120795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
The treatment of contaminated water is currently a major concern worldwide. This work was directed towards the preparation of a composite hydrogel by entrapping cherry stones powder on chitosan, which is known as one of the most abundant natural polymers. The synthesized material was characterized by scanning electron microscopy, by Fourier transform infrared spectroscopy, and by the point of zero charge determination. Its ability to remove two azo dyes models (Acid Red 66 and Reactive Black 5) existing in single form and in binary mixture was evaluated. Response Surface Methodology-Central Composite Design was used to optimize three parameters affecting the process while targeting the lowest final contaminant concentrations. The best results were obtained at pH 2, an adsorbent dose of 100 g/L, and a temperature of 30 °C, when more than 90% of the pollutants from the single component systems and more than 70% of those of the binary mixtures were removed from their aqueous solutions. The adsorption process was in accordance with Elovich and pseudo-second-order kinetic models, and closely followed the Freundlich and Temkin equilibrium isotherms. The obtained results led to the conclusion that the prepared hydrogel composite possesses the ability to successfully retain the target molecules and that it can be considered as a viable adsorbent material.
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13
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Ahmaruzzaman M. MXenes and MXene-supported nanocomposites: a novel materials for aqueous environmental remediation. RSC Adv 2022; 12:34766-34789. [PMID: 36540274 PMCID: PMC9723541 DOI: 10.1039/d2ra05530a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/22/2022] [Indexed: 08/29/2023] Open
Abstract
Water contamination has become a significant issue on a global scale. Adsorption is a cost-effective way to treat water and wastewater compared to other techniques such as the Advanced Oxidation Processes (AOPs), photocatalytic degradation, membrane filtration etc. Numerous research experts are continuously developing inexpensive substances for the adsorptive removal of organic contaminants from wastewater. A fresh and intriguing area of inquiry has emerged as a result of the development of MXenes. This article aims to provide a preliminary understanding of MXenes from synthesis, structure, and characterization to the scope of further research. The applications of MXenes as a new generation adsorbent for remediation of various kinds of organic pollutants and heavy metals from wastewater are also summarized. MXenes with altered surfaces may make effective adsorbents for wastewater treatment. Lastly, the mechanism of adsorption of organic contaminants and heavy metals on MXenes is also discussed for a better understanding of the readers.
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Affiliation(s)
- Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar 788010 Assam India
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14
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Hou Y, Liu F, Zhang B, Tong M. Thiadiazole-Based Covalent Organic Frameworks with a Donor-Acceptor Structure: Modulating Intermolecular Charge Transfer for Efficient Photocatalytic Degradation of Typical Emerging Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16303-16314. [PMID: 36305749 DOI: 10.1021/acs.est.2c06056] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
As novel metal-free photocatalysts, covalent organic frameworks (COFs) have great potential to decontaminate pollutants in water. Fast charge recombination in COFs yet inhibits their photocatalytic performance. We found that the intramolecular charge transfer within COFs could be modulated via constructing a donor-acceptor (D-A) structure, leading to the improved photocatalytic performance of COFs toward pollutant degradation. By integrating electron donor units (1,3,4-thiadiazole or 1,2,4-thiadiazole ring) and electron acceptor units (quinone), two COFs (COF-TD1 and COF-TD2) with robust D-A characteristics were fabricated as visible-light-driven photocatalysts to decontaminate paracetamol. With the readily excited electrons in 1,3,4-thiadiazole rings, COF-TD1 exhibited efficient electron-hole separation through a push-pull electronic effect, resulting in superior paracetamol photodegradation performance (>98% degradation in 60 min) than COF-TD2 (∼60% degradation within 120 min). COF-TD1 could efficiently photodegrade paracetamol in complicated water matrices even in river water, lake water, and sewage wastewater. Diclofenac, bisphenol A, naproxen, and tetracycline hydrochloride were also effectively degraded by COF-TD1. Efficient photodegradation of paracetamol in a scaled-up reactor could be achieved either by COF-TD1 in a powder form or that immobilized onto a glass slide (to further ease recovery and reuse) under natural sunlight irradiation. Overall, this study provided an effective strategy for designing excellent COF-based photocatalysts to degrade emerging contaminants.
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Affiliation(s)
- Yanghui Hou
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Fuyang Liu
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Boaiqi Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, P. R. China
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15
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El-Aassar MR, Tamer TM, El-Sayed MY, Omer AM, Althobaiti IO, Youssef ME, Alolaimi RF, El-Agammy EF, Alruwaili MS, Mohy-Eldin MS. Development of Azo Dye Immobilized Poly (Glycidyl Methacrylate-Co-Methyl Methacrylate) Polymers Composites as Novel Adsorbents for Water Treatment Applications: Methylene Blue-Polymers Composites. Polymers (Basel) 2022; 14:polym14214672. [PMID: 36365665 PMCID: PMC9655475 DOI: 10.3390/polym14214672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Methylene blue azo dye (MB) immobilized onto Poly (glycidyl methacrylate-Co-methyl methacrylate), (PGMA-co-PMMA), and sulphonated Poly (glycidyl methacrylate-Co-methyl methacrylate), (SPGMA-co-PMMA), polymers composites have been developed as novel adsorbents for water treatment applications. The effect of copolymer composition and sulphonation on the MB content has been studied. Maximum MB content was correlated to the Polyglycidyl methacrylate content for both native and sulphonated copolymers. Furthermore, the effect of the adsorption conditions on the MB content was studied. Sulfonated Poly (glycidyl methacrylate; SPGMA) was the most efficient formed composite with the highest MB content. The developed composites’ chemical structure and morphology were characterized using characterization tools such as particle size, FTIR, TGA, and SEM analyses. The developed MB-SPGMA composite adsorbent (27 mg/g), for the first time, was tested for the removal of Cr (VI) ions and Mn (VII) metal ions from dichromate and permanganate contaminated waters under mild adsorption conditions, opening a new field of multiuse of the same adsorbent in the removal of more than one contaminants.
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Affiliation(s)
- Mohamed R. El-Aassar
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
- Correspondence: (M.R.E.-A.); (M.S.M.-E.)
| | - Tamer M. Tamer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | - Mohamed Y. El-Sayed
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Ahmed M. Omer
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | | | - Mohamed E. Youssef
- Computer Based Engineering Applications, Informatic Research Insitute (IRI), City of Scientific Research and Technological Applications (SRTA-City), New Boarg El-Arab City 21934, Alexandria, Egypt
| | - Rawan F. Alolaimi
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Emam F. El-Agammy
- Physics Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Manar S. Alruwaili
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Mohamed S. Mohy-Eldin
- Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
- Correspondence: (M.R.E.-A.); (M.S.M.-E.)
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16
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Razali NS, Abdulhameed AS, Jawad AH, ALOthman ZA, Yousef TA, Al-Duaij OK, Alsaiari NS. High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism. Molecules 2022; 27:molecules27206947. [PMID: 36296542 PMCID: PMC9607410 DOI: 10.3390/molecules27206947] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 12/07/2022] Open
Abstract
In this study, Mango (Mangifera indica) seeds (MS) and peels (MP) seeds mixed fruit wastes were employed as a renewable precursor to synthesize high-surface-area-activated carbon (MSMPAC) by using microwave-induced ZnCl2 activation. Thus, the applicability of MSMPAC was evaluated towards the removal of cationic dye (methylene blue, MB) from an aqueous environment. The key adsorption factors, namely A: MSMPAC dose (0.02–0.1 g), B: pH (4–10), and C: time (5–15 min), were inspected using the desirability function of the Box-Behnken design (BBD). Thus, the adsorption isotherm data were found to correspond well with the Langmuir model with a maximum adsorption capacity of (232.8 mg/g). Moreover, the adsorption kinetics were consistent with both pseudo-first-order and pseudo-second-order models. The spontaneous and endothermic nature of MB adsorption on the MSMPAC surface could be inferred from the negative ∆G° values and positive value of ∆H°, respectively. Various mechanisms namely electrostatic forces, pore filling, π-π stacking, and H-bonding govern MB adsorption by the MSMPAC. This study demonstrates the utility of MS and MP as renewable precursors to produce high-surface area MSMPAC with a potential application towards the removal of cationic organic dyes such as MB.
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Affiliation(s)
- Nur Shakinah Razali
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
| | - Ahmed Saud Abdulhameed
- Department of Medical Instrumentation Engineering, Al-Mansour University College, Baghdad 10068, Iraq
- College of Engineering, University of Warith Al-Anbiyaa, Karbala 56001, Iraq
| | - Ali H. Jawad
- Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
- Correspondence:
| | - Zeid A. ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Tarek A. Yousef
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
| | - Omar K. Al-Duaij
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
| | - Norah Salem Alsaiari
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia
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17
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Ahmad Rather I, Ayoub Khan S, Ali R, Alam Khan T. Appraisal of adsorptive potential of novel one-walled meso-phenylboronic acid functionalized calix[4]pyrrole for liquid phase sequestration of paracetamol. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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