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Elhady S, Inan H, Shaaban M, Fahim IS. Investigation of olive leaf extract as a potential environmentally-friendly corrosion inhibitor for carbon steel. Sci Rep 2023; 13:17151. [PMID: 37816748 PMCID: PMC10564776 DOI: 10.1038/s41598-023-43701-x] [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: 05/24/2023] [Accepted: 09/27/2023] [Indexed: 10/12/2023] Open
Abstract
Corrosion constitutes a significant issue in industries that handle metals. Corrosion inhibitors with a low impact on the environment provide a significant economic benefit in various engineering applications. In this work, the effectiveness of olive leaves extract is evaluated as a cost-effective and environmentally-friendly corrosion inhibitor. The corrosion of carbon steel in different concentrations of hydrochloric acid (0.1, 1.0, and 2.0 M) when protected by an aqueous solution of olive leaf extract of concentrations ranging from 10 to 60 ppm is investigated. A green extraction process based upon water extraction is used to ensure minimum impact on the environment. Results show that the corrosion inhibition efficiency increased as the concentration of the olive leaf extract increased. An analysis of variance showed a significant effect of acidic molarity, temperature, and inhibitor concentration on the corrosion rate. A significant statistical model indicates that the inhibitor exhibits higher efficiencies at higher acidic molarity. Results of SEM and EDX also demonstrated that a protective film of the inhibitor on the specimen surface plays a role in corrosion inhibition, suggesting that the inhibitor molecules are adsorbed at the interface between the carbon steel and the acid solution. The study provides an insight on the corrosion mechanism and highlights the potential of olive oil extract as an eco-friendly alternative to traditional corrosion inhibitors.
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Affiliation(s)
- Sherifa Elhady
- Smart Engineering Systems Centre, Nile University, Cairo, Egypt
| | - Hatice Inan
- Smart Engineering Systems Centre, Nile University, Cairo, Egypt
| | - Mahmoud Shaaban
- Smart Engineering Systems Centre, Nile University, Cairo, Egypt
- Mechanical Engineering Program, School of Engineering and Applied Sciences, Nile University, Cairo, Egypt
| | - Irene S Fahim
- Smart Engineering Systems Centre, Nile University, Cairo, Egypt.
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2
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Samide A, Dobriţescu A, Tigae C, Spînu CI, Oprea B. Experimental and Computational Study on Inhibitory Effect and Adsorption Properties of N-Acetylcysteine Amino Acid in Acid Environment. Molecules 2023; 28:6799. [PMID: 37836642 PMCID: PMC10574521 DOI: 10.3390/molecules28196799] [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: 09/02/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) were applied to study the inhibitory effect of N-acetylcysteine (NAC) on corrosion inhibition of carbon steel in hydrochloric acid solution. N-acetylcysteine influenced the iron dissolution to a greater extent than the hydrogen evolution reaction acting as a mixed inhibitor, predominantly anodic. The charge transfer resistance (Rct) gradually increased with the inhibitor concentration. From both methods, the inhibition efficiency (IE) reached a value of 89 ± 1% and NAC adsorption followed the Temkin isotherm. The value of adsorption Gibbs energy (ΔGadso), around -35 kJ mol-1, indicated a spontaneous adsorption and mixed action mechanism, with NAC chemical adsorption prevailing over physical one. New data will be reported by the computational study, that was performed using the density functional theory (DFT) method in aqueous phase. Quantum chemical descriptors were determined by B3LYP theory level with 6-31G+(d) basis set. Metropolis Monte Carlo atomistic simulation was used to reveal the adsorption configuration and interactions between acetylcysteine molecules and the carbon steel surface. Theoretical results were consistent with the experimental data, showing that the inhibitor action mechanism consisted of mainly chemisorption of its molecules on the carbon steel surface accompanied by van der Waals forces and electrostatic interactions.
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Affiliation(s)
- Adriana Samide
- Department of Chemistry, Faculty of Sciences, University of Craiova, 107i Calea Bucuresti, 200478 Craiova, Romania; (C.T.); (C.I.S.)
| | - Aurelian Dobriţescu
- Department of Chemistry, Faculty of Sciences, University of Craiova, 107i Calea Bucuresti, 200478 Craiova, Romania; (C.T.); (C.I.S.)
| | - Cristian Tigae
- Department of Chemistry, Faculty of Sciences, University of Craiova, 107i Calea Bucuresti, 200478 Craiova, Romania; (C.T.); (C.I.S.)
| | - Cezar Ionuţ Spînu
- Department of Chemistry, Faculty of Sciences, University of Craiova, 107i Calea Bucuresti, 200478 Craiova, Romania; (C.T.); (C.I.S.)
| | - Bogdan Oprea
- Faculty of Medicine, University of Medicine and Pharmacy, Petru Rares, 2, 200349 Craiova, Romania;
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3
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Monaci S, Minudri D, Guazzelli L, Mezzetta A, Mecerreyes D, Forsyth M, Somers A. Lignin-Derivative Ionic Liquids as Corrosion Inhibitors. Molecules 2023; 28:5568. [PMID: 37513439 PMCID: PMC10384825 DOI: 10.3390/molecules28145568] [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: 06/28/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Corrosion is a significant problem that negatively affects a wide range of structures and buildings, resulting in their premature failure, which causes safety hazards and significant economic loss. For this reason, various approaches have been developed to prevent or minimize the effects of corrosion, including corrosion inhibitors. Recently, biobased inhibitors have gained a certain interest thanks to their unique properties, eco-friendliness, and availability. Among all the green precursors, lignin is of particular interest, being a natural polymer that can be obtained from different sources including agricultural residues. Corrosion inhibitors based on ionic liquids (ILs) also present interesting advantages, such as low volatility and high tunability. If combined, it may be possible to obtain new lignin-based ILs that present interesting corrosion inhibitor properties. In this work, the inhibition properties of new biobased lignin ILs and the influence of anions and cations on the corrosion of mild steel in an aqueous solution of 0.01 M NaCl were investigated by Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Cyclic Potentiodynamic Polarization (CPP). Moreover, the surface was characterized using SEM, EDS, and optical profilometry. The IL choline syringate showed promising performance, reducing the corrosion current after 24 h immersion in 0.01 M sodium chloride, from 1.66 µA/cm2 for the control to 0.066 µA/cm2 with 10 mM of the IL present. In addition to its performance as a corrosion inhibitor, both components of this IL also meet or exceed the current additional desired properties of such compounds, being readily available, and well tolerated in organisms and the environment.
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Affiliation(s)
- Sharon Monaci
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastian, Spain
- Institute for Frontier Materials, Deakin University, Burwood, VIC 3125, Australia
| | - Daniela Minudri
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastian, Spain
| | - Lorenzo Guazzelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126 Pisa, Italy
| | - Andrea Mezzetta
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 33, 56126 Pisa, Italy
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Maria Forsyth
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastian, Spain
- Institute for Frontier Materials, Deakin University, Burwood, VIC 3125, Australia
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Anthony Somers
- Institute for Frontier Materials, Deakin University, Burwood, VIC 3125, Australia
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Chowdhury MA, Hossain N, Ahmed MMS, Islam MA, Islam S, Rana MM. Green tea and tulsi extracts as efficient green corrosion inhibitor for aluminum alloy in alkaline medium. Heliyon 2023; 9:e16504. [PMID: 37292324 PMCID: PMC10245160 DOI: 10.1016/j.heliyon.2023.e16504] [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: 01/18/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 06/10/2023] Open
Abstract
Corrosion is a major issue in every industrial system. As a result of its widespread application, aluminum suffers enormous annual losses due to corrosion. Scientists are continually on the lookout for effective anti-corrosion strategies. Corrosion may be reduced in a number of ways, but many of them are harmful to the environment, so it's important to find a green alternative. Corrosion inhibitors in aluminum alloys can be found in green tea and tulsi extract. In this research, we found that aluminum alloy 1100 (Al-1100) ina 10% NaOH solution was inhibited by both green tea and Tulsi extract. Samples of AL alloy are submerged in 10% NaOH solutions with and without an inhibitor for a total of 25 days. The weight-loss technique is used to determine the effectiveness of an inhibitor, with tulsi extract far outperforming green tea with the best efficiency of 83.93% compared to the greatest efficiency of 14.29% for green tea. After being submerged in an inhibitory solution, an aluminum alloy surface developed an adsorbed protective layer, which is chemical adsorption, as seen by FTIR (Fourier-Transform Infrared Spectroscopy) spectroscopy. Green inhibitors those are present on the surface of the aluminum alloys are less corrosive confirmed by the SEM (Scanning Electron Microscopy) analysis. The chemical particles were found to be present as a coating over AL alloy surfaces, as determined by EDS (Energy Dispersion Spectroscopy) testing. In a10% NaOH solution, Al-1100 is inhibited more effectively by tulsi extracts than by green tea extracts.
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Affiliation(s)
| | - Nayem Hossain
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Mir Shakib Ahmed
- Department of Mechanical Engineering, Dhaka University of Engineering and Technology (DUET), Gazipur, 1707, Bangladesh
| | - Mohammad Aminul Islam
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Safiul Islam
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Masud Rana
- Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh
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Low EJ, Yusoff HM, Batar N, Nor Azmi INZ, Chia PW, Lam SS, Kan SY, Liew RK, Lee GE, Venkateswarlu K, Ridwan Zulkifli MF. The use of food additives as green and environmental-friendly anti-corrosion inhibitors for protection of metals and alloys: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27823-3. [PMID: 37246180 DOI: 10.1007/s11356-023-27823-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/17/2023] [Indexed: 05/30/2023]
Abstract
Corrosion inhibitors have offered new opportunities to bring positive impacts on our society, especially when it has helped in protecting metals against corrosion in an aqueous solution. Unfortunately, the commonly known corrosion inhibitors used to protect metals or alloys against corrosion are invariably related to one or more drawbacks such as the employment of hazardous anti-corrosion agents, leakage of anti-corrosion agents in aqueous solution, and high solubility of anti-corrosion agents in water. Over the years, using food additives as anti-corrosion agents have drawn interest as it offers biocompatibility, less toxic, and promising applications. In general, food additives are considered safe for human consumption worldwide, and it was rigorously tested and approved by the US Food and Drug Administration. Nowadays, researchers are more interested in innovating and using green, less toxic, and economical corrosion inhibitors in metal and alloy protection. As such, we have reviewed the use of food additives to protect metals and alloys against corrosion. The current review is significant and differs from the previous review articles made on corrosion inhibitors, in which the new role of food additives is highlighted as green and environmental-friendly substances in the protection of metals and alloys against corrosion. It is anticipated that the next generation will be utilizing non-toxic and sustainable anti-corrosion agents, in which food additives might be the potential to fulfill the green chemistry goals.
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Affiliation(s)
- Ee Jian Low
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
| | - Hanis Mohd Yusoff
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
| | - Nurhanna Batar
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
| | - Intan Nur Zulayqha Nor Azmi
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
| | - Poh Wai Chia
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia.
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia.
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
- University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Su-Yin Kan
- Faculty of Health Sciences, University Sultan Zainal Abidin, Kuala Nerus, 21300, Terengganu, Malaysia
| | - Rock Keey Liew
- NV Western PLT, No. 208B, Second Floor, Macalister Road, 10400, Georgetown, Penang, Malaysia
| | - Gaik Ee Lee
- Faculty of Science and Marine Environment, University Malaysia Terengganu, Kuala Nerus, 21030, Terengganu, Malaysia
| | - Katta Venkateswarlu
- Laboratory of Synthetic and Natural Products Chemistry, Department of Chemistry, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
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Gabsi M, Ferkous H, Delimi A, Boublia A, Boulechfar C, Kahlouche A, Darwish AS, Lemaoui T, Benguerba Y. The curious case of polyphenols as green corrosion inhibitors: a review on their extraction, design, and applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:59081-59105. [PMID: 37017845 DOI: 10.1007/s11356-023-26753-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/27/2023] [Indexed: 05/10/2023]
Abstract
Over the past century, a substantial amount of research focused on developing corrosion inhibitors, with a special focus on green "plant-based" corrosion inhibitors. Among the various types of inhibitors, polyphenols emerged as a promising candidate due to their advantageous characteristics, which include being inexpensive, biodegradable, renewable, and, most importantly, safe for both the environment and humans. Their performance as sustainable corrosion inhibitors have encouraged many electrochemical experiments as well as theoretical, mechanistic, and computational studies, with many papers reporting inhibition efficiencies of over 85%. In this review, the majority of literature contributions on the inhibition of various types of polyphenols, their natural extraction techniques, and their applications as "greener" corrosion inhibitors for metals are thoroughly described and discussed with a focus on their preparation, inhibition mechanism, and performance. Based on the reviewed literature, it can be concluded that polyphenols have a very promising potential to be used as both green and powerful corrosion inhibitors; therefore, further investigations, experimental or computational, are still required to realize higher inhibition efficiencies reaching up to ≈ 100%.
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Affiliation(s)
- Meriem Gabsi
- Laboratoire de Génie mécanique et Matériaux, Faculté de Technologie, Université de Skikda, 21000, Skikda, Algeria
- Département de Technologie, Université de Skikda, 21000, Skikda, Algeria
| | - Hana Ferkous
- Laboratoire de Génie mécanique et Matériaux, Faculté de Technologie, Université de Skikda, 21000, Skikda, Algeria
- Département de Technologie, Université de Skikda, 21000, Skikda, Algeria
| | - Amel Delimi
- Laboratoire de Génie mécanique et Matériaux, Faculté de Technologie, Université de Skikda, 21000, Skikda, Algeria
- Département de Technologie, Université de Skikda, 21000, Skikda, Algeria
| | - Abir Boublia
- Laboratoire de Physico-Chimie des Hauts Polymères (LPCHP), Département de Génie des Procédés, Faculté de Technologie, Université Ferhat ABBAS Sétif-1, Sétif, Algeria
| | - Chérifa Boulechfar
- Laboratoire de Génie mécanique et Matériaux, Faculté de Technologie, Université de Skikda, 21000, Skikda, Algeria
- Département de Technologie, Université de Skikda, 21000, Skikda, Algeria
| | - Abdesalem Kahlouche
- Laboratoire de Génie mécanique et Matériaux, Faculté de Technologie, Université de Skikda, 21000, Skikda, Algeria
- CRTI Research Centre in Industrial Technologies-CRTI P.O. Box 64, Cheraga, 16014, Algiers, Algeria
| | - Ahmad S Darwish
- Department of Chemical Engineering, Khalifa University of Science and Technology, 127788, Abu Dhabi, United Arab Emirates, UAE
| | - Tarek Lemaoui
- Laboratoire de Biopharmacie Et Pharmacotechnie (LBPT), Université Ferhat ABBAS Sétif-1, Sétif, Algeria
| | - Yacine Benguerba
- Laboratoire de Biopharmacie Et Pharmacotechnie (LBPT), Université Ferhat ABBAS Sétif-1, Sétif, Algeria.
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7
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Bibliographical Synthesis on the Corrosion and Protection of Archaeological Iron by Green Inhibitors. ELECTROCHEM 2023. [DOI: 10.3390/electrochem4010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Iron is a widely used metal due to its low cost and availability, but it is susceptible to corrosion in many circumstances. This corrosion can result in economic and environmental losses, and negatively affect the physical and chemical properties of the metal. This chapter provides a background on iron corrosion in archaeology and introduces various inhibitors used for its protection. It starts with a general overview of corrosion and metallurgy of iron, followed by an in-depth explanation of the mechanisms of iron corrosion in water and air. The chapter concludes with a review of different corrosion inhibitors, focusing on those made from natural plant extracts.
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Gad SM, Jin Z, Emad S, Vergara JE, Yawas DS, Dagwa IM, Momoh-Bello Omiogbemi I. Potential of rare-earth compounds as anticorrosion pigment for protection of aerospace AA2198-T851 alloy. Heliyon 2023; 9:e14693. [PMID: 37101480 PMCID: PMC10123218 DOI: 10.1016/j.heliyon.2023.e14693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/11/2023] [Accepted: 03/15/2023] [Indexed: 03/28/2023] Open
Abstract
In this study, the anticorrosion potential of carboxylic compounds; Lanthanum 4-hydroxycinnamate La(4OHCin)3, Cerium 4-hydroxycinnamate Ce(4OHCin)3 and Praseodymium 4-hydroxycinnamate Pr(4OHCin)3 for the protection of Al-Cu-Li alloy was investigated in 3.5% NaCl solution using electrochemical tests (EIS and PDP), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The findings achieved show a very good correlation between electrochemical responses and surface morphologies of the exposed alloy, indicating a modification of the surface by precipitation of the inhibitor species, leading to effective protection against corrosion. At optimum concentration 200 ppm, the trend of inhibition efficiency η (%) increases in the order Ce(4OHCin)3 93.35% > Pr(4OHCin)3 85.34% > La(4OHCin)3 82.25%. XPS complemented the findings by detecting and providing information about the oxidation states of the protective species.
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Affiliation(s)
- Shedrack Musa Gad
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Corresponding author.
| | - Zelong Jin
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Seydgholamreza Emad
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | | | - Danjuma Saleh Yawas
- Shell Professorial Chair, Mechanical Engineering Department, Ahmadu Bello University, Samaru Campus, Community Market, 810211, Zaria, Nigeria
| | - Ishaya Musa Dagwa
- Department of Mechanical Engineering, University of Abuja, Main Campus, Airport Road, P.M.B. 117 Abuja, Nigeria
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Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05433-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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10
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Swathi NP, Samshuddin S, Aljohani TA, Rasheeda K, Alva VD, Baig I, Maslamani N, Hassan Alamri A. Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1016/j.sajce.2023.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Sánchez-Eleuterio A, Mendoza-Merlos C, Corona Sánchez R, Navarrete-López AM, Martínez Jiménez A, Ramírez-Domínguez E, Lomas Romero L, Orozco Cruz R, Espinoza Vázquez A, Negrón-Silva GE. Experimental and Theoretical Studies on Acid Corrosion Inhibition of API 5L X70 Steel with Novel 1- N-α-d-Glucopyranosyl-1 H-1,2,3-Triazole Xanthines. Molecules 2023; 28:molecules28010460. [PMID: 36615654 PMCID: PMC9824469 DOI: 10.3390/molecules28010460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/06/2023] Open
Abstract
A series of novel 1-N-α-d-glucopyranosyl-1H-1,2,3-triazole xanthines was synthesized from azido sugars (glucose, galactose, and lactose) and propargyl xanthines (theophylline and theobromine) using a typical copper (I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition. The corrosion inhibition activities of these new carbohydrate-xanthine compounds were evaluated by studying the corrosion of API 5 L X70 steel in a 1 M HCl medium. The results showed that, at 10 ppm, a 90% inhibition efficiency was reached by electrochemical impedance spectroscopy. The inhibitory efficiency of these molecules is explained by means of quantum chemical calculations of the protonated species with the solvent effect, which seems to better represent the actual situation of the experimental conditions. Some quantum chemical parameters were analyzed to characterize the inhibition performance of the tested molecules.
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Affiliation(s)
- Alma Sánchez-Eleuterio
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
| | - Carlos Mendoza-Merlos
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
| | - Ricardo Corona Sánchez
- Departamento de Química, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco No. 186, Ciudad de Mexico 09340, Mexico
| | - Alejandra M. Navarrete-López
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
| | - Anatolio Martínez Jiménez
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
| | - Elsie Ramírez-Domínguez
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
| | - Leticia Lomas Romero
- Departamento de Química, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco No. 186, Ciudad de Mexico 09340, Mexico
| | - Ricardo Orozco Cruz
- Instituto de Ingeniería, Universidad Veracruzana, Av. S. S. Juan Pablo II S/N, Boca del Río, Veracruz 94294, Mexico
- Correspondence: (R.O.C.); (A.E.V.); (G.E.N.-S.)
| | - Araceli Espinoza Vázquez
- Instituto de Ingeniería, Universidad Veracruzana, Av. S. S. Juan Pablo II S/N, Boca del Río, Veracruz 94294, Mexico
- Correspondence: (R.O.C.); (A.E.V.); (G.E.N.-S.)
| | - Guillermo E. Negrón-Silva
- Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana, Av. San Pablo No. 180, Azcapotzalco, Ciudad de Mexico 02200, Mexico
- Correspondence: (R.O.C.); (A.E.V.); (G.E.N.-S.)
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Hossain N, Aminul Islam M, Asaduzzaman Chowdhury M. Advances of plant-extracted inhibitors in metal corrosion reduction – Future prospects and challenges. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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13
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Corrosion and Electrochemical Characterization of St37 in the Presence of Quince Extract as a Green and Sustainable Inhibitor. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00788-6] [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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14
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Keshk RM, Elgawad GEA, Sallam ER, Alsubaie MS, Fetouh HA. Synthesis and Characterization of Nicotinonitrile Derivatives as Efficient Corrosion Inhibitors for Acid Pickling of Brass Alloy in Nitric Acid. ChemistrySelect 2022. [DOI: 10.1002/slct.202202678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Reda. M. Keshk
- Department of Chemistry Faculty of science Damanhour University Egypt
| | | | - Eman. R. Sallam
- National Institute of Oceanography and Fisheries Alexandria Egypt
| | - Mai S. Alsubaie
- Department of Chemistry Faculty of science Alexandria University Egypt
| | - Howida. A. Fetouh
- Department of Chemistry Faculty of science Alexandria University Egypt
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15
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Aslam R, Mobin M, Zehra S, Aslam J. A comprehensive review of corrosion inhibitors employed to mitigate stainless steel corrosion in different environments. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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16
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Gouda M, Khalaf MM, Al-Shuaibi MAA, Mohamed IMA, Shalabi K, El-Shishtawy RM, El-Lateef HMA. Facile Synthesis and Characterization of CeO2-Nanoparticle-Loaded Carboxymethyl Cellulose as Efficient Protective Films for Mild Steel: A Comparative Study of Experiential and Computational Findings. Polymers (Basel) 2022; 14:polym14153078. [PMID: 35956592 PMCID: PMC9370439 DOI: 10.3390/polym14153078] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 01/27/2023] Open
Abstract
Corrosion is considered to be the most severe problem facing alloys and metals, one that causes potentially dangerous industrial issues such as the deterioration of buildings and machinery, and corrosion in factory tanks and pipelines in petroleum refineries, leading to limited lifetime and weak efficacy of such systems. In this work, novel CeO2-nanoparticle-loaded carboxymethyl cellulose (CMC) was successfully prepared by using a simple method. The structural configuration of the prepared CeO2-nanoparticle-loaded CMC was investigated by FE-SEM/EDX, TEM, FT-IR, and thermal analyses. The corrosion protection proficiency of uncoated and coated mild steel with CeO2-CMC systems in 1.0 M HCl solutions was studied by EOCP-time, EIS, and PDP tools. Moreover, the relationship between the structure of coating films and their corrosion protection was confirmed by DFT calculation and MC simulation. The obtained findings from the studied methods showed that the prepared CeO2-CMC-coated films reported high corrosion resistance. The protection capacity augmented with ceria presents an increase of up to 3% to achieve 98.4%. DFT calculation and MC simulation confirmed the influence of the chemical construction of coated films on its protection capacity, which was in accordance with the experimental results.
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Affiliation(s)
- Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.M.K.); (M.A.A.A.-S.)
- Correspondence: (M.G.); (I.M.A.M.); (R.M.E.-S.); (H.M.A.E.-L.)
| | - Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.M.K.); (M.A.A.A.-S.)
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Manal A. A. Al-Shuaibi
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.M.K.); (M.A.A.A.-S.)
| | - Ibrahim M. A. Mohamed
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Correspondence: (M.G.); (I.M.A.M.); (R.M.E.-S.); (H.M.A.E.-L.)
| | - Kamal Shalabi
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21413, Saudi Arabia
- Dyeing, Printing and Textile Auxiliaries Department, Institute of Textile Research and Technology, National Research Centre, 33 EL Buhouth St., Dokki, Giza 12622, Egypt
- Correspondence: (M.G.); (I.M.A.M.); (R.M.E.-S.); (H.M.A.E.-L.)
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (M.M.K.); (M.A.A.A.-S.)
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Correspondence: (M.G.); (I.M.A.M.); (R.M.E.-S.); (H.M.A.E.-L.)
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17
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Comparative Study of Corrosion Inhibition Efficacy of Alkaloid Extract of Artemesia vulgaris and Solanum tuberosum in Mild Steel Samples in 1 M Sulphuric Acid. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3030029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Two different types of alkaloids are successfully extracted from two plants Artemisia vulgaris (AV) and Solanum tuberosum (ST) in the laboratory and used as corrosion inhibitors for mild steel samples. The corrosion inhibition potential of these alkaloids is determined by weight loss and potentiodynamic polarization measurement methods. Based on the weight loss measurement study of a sample immersed for 6 h in 1000 ppm inhibitor solution of AV and ST alkaloids, the corrosion inhibition efficiency is found to be 92.58% and 90.79%, respectively. The potentiodynamic polarization measurement shows 88.06% and 83.22% corrosion inhibition efficiency for AV and ST alkaloids, respectively, for the sample immersed for 1 h in 1000 ppm inhibitor solution. These promising efficiency and suitable immersion time effect can lead to the development of good green inhibitors.
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18
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Fares MM, Radaydeh SK, Masadeh KH. Bolaamphiphilic Microstrutural Polyphenol Flavonoids as Sustainable High Efficacy Coating for Aluminium Surafce in Aqououes Solution. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mohammad M. Fares
- Department of Chemistry Jordan University of Science & Technology Irbid Jordan
| | - Samah K. Radaydeh
- Department of Chemistry Jordan University of Science & Technology Irbid Jordan
| | - Khansa'a H. Masadeh
- Department of Chemistry Jordan University of Science & Technology Irbid Jordan
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19
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Fadhil H, Mraihi F, Ayadi PMT, Cherif PJK. Anticorrosive Performance of Wild
Lycium ferocissimum
Miers Fruit Extract on Carbon Steel in an Acidic Medium. ChemistrySelect 2022. [DOI: 10.1002/slct.202104297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hajer Fadhil
- Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE) Faculty of Sciences Bizerte 7021 Bizerte, Tunisia University of Carthage Tunisia
| | - Farouk Mraihi
- Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE) Faculty of Sciences Bizerte 7021 Bizerte, Tunisia University of Carthage Tunisia
| | - Pr. Malika Trabelsi Ayadi
- Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE) Faculty of Sciences Bizerte 7021 Bizerte, Tunisia University of Carthage Tunisia
| | - Pr. Jamila Kalthoum Cherif
- Laboratory of Applications of Chemistry to Resources and Natural Substances and to the Environment (LACReSNE) Faculty of Sciences Bizerte 7021 Bizerte, Tunisia University of Carthage Tunisia
- Preparatory Engineering Institute of Tunis, 2 Rue Jawaher Lel Nehru- Montfleury – 1008 Tunis University of Tunis Tunisia
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20
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Monteiro GP, Tavares IMDC, de Carvalho MCF, Carvalho MS, Pimentel AB, Santos PH, Vilas Boas EVDB, de Oliveira JR, Capelossi VR, Bilal M, Franco M. Evaluation of fungal biomass developed from cocoa by-product as a substrate with corrosion inhibitor for carbon steel. CHEM ENG COMMUN 2022. [DOI: 10.1080/00986445.2022.2073228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Gabriel Pereira Monteiro
- Department of Rural and Animal Technology, State University of Southwestern Bahia, Itapetinga, Brasil
| | | | | | - Marise Silva Carvalho
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, Brazil
| | - Adriana Bispo Pimentel
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, Brazil
| | - Pedro Henrique Santos
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | | | - Vera Rossi Capelossi
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, Brazil
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Marcelo Franco
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, Brazil
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21
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Eddy NO, Ibok UJ, Garg R, Garg R, Iqbal A, Amin M, Mustafa F, Egilmez M, Galal AM. A Brief Review on Fruit and Vegetable Extracts as Corrosion Inhibitors in Acidic Environments. Molecules 2022; 27:2991. [PMID: 35566341 PMCID: PMC9105195 DOI: 10.3390/molecules27092991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/26/2022] [Accepted: 05/03/2022] [Indexed: 11/17/2022] Open
Abstract
The corrosion of metals, i.e., the initiation and acceleration of the surface deterioration of metals through an electrochemical reaction with the surrounding intrusive environment, is a global concern because of the economic and environmental impacts. Corrosion inhibitors are considered the most practical choice among the available corrosion protection techniques due to their effectiveness in terms of functionality and cost. The use of traditional and toxic corrosion inhibitors has led to environmental issues, arousing the need for green counterparts that are environmentally friendly, easily accessible, biodegradable, and cost-effective. In this review, the utilization of green corrosion inhibitors purely acquired from renewable sources is explored, with an in-depth focus on the recent advancements in the use of fruit and vegetable extracts as green corrosion inhibitors. In particular, fruits and vegetables are natural sources of various phytochemicals that exhibit key potential in corrosion inhibition. To shed light on the true potential of such extracts in the protection of steel in acidic environments, the experimental techniques involved in corrosion inhibition and the mechanism of corrosion inhibition are discussed in detail. The study highlights the potential of fruit and vegetable extracts as non-toxic, economical, and effective corrosion inhibitors in the pursuit of green chemistry. In addition to discussing and outlining the current status and opportunities for employing fruit and vegetable extracts as corrosion inhibitors, the current review outlines the challenges involved in the utilization of such extracts in corrosion inhibition.
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Affiliation(s)
- Nnabuk Okon Eddy
- Department of Pure and Applied Chemistry, University of Nigeria, Nsukka 410001, Nigeria;
| | - Udo John Ibok
- Department of Chemistry, Akwa Ibom State University, Ikot Akpaden 520221, Nigeria;
| | - Rajni Garg
- Research & Development, Institute of Sci-Tech Affairs, Mohali 140306, India;
| | - Rishav Garg
- Department of Civil Engineering, Galgotias College of Engineering and Technology, Greater Noida 201306, India;
| | - Amjad Iqbal
- Department of Materials Technologies, Faculty of Materials Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Muhammad Amin
- Department of Energy System Engineering, Seoul National University, Seoul 08826, Korea;
| | - Faisal Mustafa
- Department of Physics, American University of Sharjah, Sharjah 26666, United Arab Emirates;
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates
| | - Mehmet Egilmez
- Department of Physics, American University of Sharjah, Sharjah 26666, United Arab Emirates;
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah 26666, United Arab Emirates
| | - Ahmed M. Galal
- Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi ad-Dawasir 11991, Saudi Arabia;
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt
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22
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Evaluation of crude methanolic mangrove leaves extract for antibiofilm efficacy against biofilm-forming bacteria on a cooling tower wastewater system. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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23
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Sanni O, Ren J, Jen TC. Understanding the divergence of agro waste extracts on the microstructure, mechanical, and corrosion performance of steel alloy. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2021.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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24
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Gadow HS, Fakeeh M. Green inhibitor of carbon steel corrosion in 1 M hydrochloric acid: Eruca sativa seed extract (experimental and theoretical studies). RSC Adv 2022; 12:8953-8986. [PMID: 35424886 PMCID: PMC8985086 DOI: 10.1039/d2ra01296k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 03/16/2022] [Indexed: 01/05/2023] Open
Abstract
The adsorption activity and inhibition effect of Eruca sativa seed extract as a green inhibitor for the dissolution of carbon steel in 1 M hydrochloric acid solution were investigated. In this study, we used a chemical technique (gravimetric method), electrochemical techniques, electrical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques, and theoretical studies. In addition to these techniques, we examined the surface morphology of the carbon steel utilizing different methods. The measurements of the polarization technique indicate that this extract acts as a mixed-type inhibitor. Thermodynamic parameters were calculated and discussed. The adsorption of Eruca sativa seed extracts on the alloy obeys the Langmuir and Henry adsorption isotherms. The extract gives an excellent inhibition efficiency 94.8% by a gravimetric method at 0.3 g L-1 from the extract. The relationship between the calculated % IE from experiments and the theoretical studies was established.
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Affiliation(s)
- H S Gadow
- Higher Institute for Engineering and Technology New Damietta Egypt
| | - M Fakeeh
- Higher Institute for Engineering and Technology New Damietta Egypt
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25
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Alam M, Altaf M, Ahmad N. Rapeseed oil gallate-amide-urethane coating material: Synthesis and evaluation of coating properties. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
The present manuscript describes the synthesis of urethane (ROGAU) coating material from Rapeseed oil (RO), Gallic acid (GA) and Toluylene-2,4-diisocyanate [TDI], for the first time. The reaction was accomplished in the following steps: (i) amidation of RO, producing diol fatty amide, HERA, followed by (ii) gallation reaction of HERA with GA, resulting in RO-based gallate amide (ROGA). The structural elucidation by FTIR and NMR confirmed the insertion of amide and ester moieties in the ROGA backbone. To add applicational value to ROGA, it was then derivatized by urethanation reaction with TDI to develop ambient temperature-cured ROGAU, as a corrosion protective coating material. ROGAU coatings were scratch resistant, well-adherent, and flexible to a considerable extent and showed good corrosion resistance performance toward saline medium (3.5 wt% NaCl). ROGAU coatings can be safely used up to 200°C.
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Affiliation(s)
- Manawwer Alam
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
| | - Mohammad Altaf
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
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26
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Gallic Acid as a Potential Green Corrosion Inhibitor for Aluminum in Acidic Solution. METALS 2022. [DOI: 10.3390/met12020250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Plant extracts are intensively studied as green corrosion inhibitors of aluminum. Because these extracts are complex systems, the influence of their individual constituents on the corrosion of aluminum should be determined. In this work, gallic acid was tested for the first time as a corrosion inhibitor of aluminum in orthophosphoric acid aqueous solution. So far, its potential inhibiting properties in acidic solutions were only suggested based on promising results obtained for various plant extracts. Evaluation of the potential inhibiting properties of gallic acid was performed using electrochemical methods. The corrosion potential, polarization curves, and impedance spectra of aluminum in 0.5 M orthophosphoric acid, at T = 303 K, were determined. The corrosion potential, corrosion current density, and corrosion rate of aluminum in orthophosphoric acid were equal to −1.151 V vs. Ag|AgCl (3M KCl) reference electrode, 36 μA∙cm−2 and 0.39 mm∙year−1, respectively. These values did not change with the addition of gallic acid. The results obtained show that gallic acid does not inhibit aluminum corrosion. UV-Vis absorption spectra of gallic acid solutions and quantum mechanical calculations show that this organic compound did not adsorb onto the aluminum surface under the studied conditions.
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27
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Xu X, Xu H, Li W, Wang Y, Zhang X. A combined quantum chemical, molcular dynamics and Monto Carlo study of three amino acids as corroison inhibitors for aluminum in NaCl solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Hossein Jafari Mofidabadi A, Dehghani A, Ramezanzadeh B. Sinapis arvensis (Mustard) extract derived bio-molecules linked Zinc-II ions; Integrated electrochemical & surface investigations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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El Asri A, Jmiai A, Mohamed Rguiti M, Oukhrib R, Abbiche K, Zejli H, Hilali M, Bourzi H, Bazzi L, El Issami S. Computational and experimental studies of the inhibitory effect of imidazole derivatives for the corrosion of copper in an acid medium. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117813] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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30
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Alvarez PE, Fiori-Bimbi MV, Valenti RV, Ruiz Hidalgo J, Brandán SA, Gervasi CA. Improved electrochemical strategy to characterize adsorption and corrosion inhibition related to biomolecules from plant extracts: The case of Annona cherimola. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2021.100233] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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31
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Investigation of the anti-corrosion properties of Galactomannan as additive in epoxy coatings for carbon steel: Rheological and electrochemical study. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108971] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Novel Cellulose Derivatives Containing Metal (Cu, Fe, Ni) Oxide Nanoparticles as Eco-Friendly Corrosion Inhibitors for C-Steel in Acidic Chloride Solutions. Molecules 2021; 26:molecules26227006. [PMID: 34834095 PMCID: PMC8619041 DOI: 10.3390/molecules26227006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 11/23/2022] Open
Abstract
Novel environmentally-friendly corrosion inhibitors based on primary aminated modified cellulose (PAC) containing nano-oxide of some metals (MONPs), for instance iron oxide nanoparticles (Fe3O4NPs), copper oxide nanoparticles (CuONPs), and nickel oxide nanoparticles (NiONPs), were successfully synthesized. The as-prepared PAC/MONPs nanocomposites were categorized using Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM), field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and selected area diffraction pattern (SAED) techniques. The data from spectroscopy indicated that successful formation of PAC/MONPs nanocomposites, as well as the TEM images, declared the synthesized PAC/Fe3O4NPs, PAC/CuONPs, and PAC/NiONPs with regular distribution with particle size diameters of 10, 23 and 43 nm, respectively. The protection performance of the as-prepared PAC and PAC/MONPs nanocomposites on the corrosion of C-steel in molar HCl was studied by the electrochemical and weight-loss approaches. The outcomes confirmed that the protection power increased with a rise in the [inhibitor]. The protection efficiency reached 88.1, 93.2, 96.1 and 98.6% with 250 ppm of PAC/CuONP, PAC/Fe3O4NPs, and PAC/NiONPs, respectively. PAC and all PAC/MONPs nanocomposites worked as mixed-kind inhibitors and their adsorption on the C-steel interface followed the isotherm Langmuir model. The findings were reinforced by FT-IR, FE-SEM and EDX analyses.
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An insight into inhibitory performance of Commiphora Mukul on corrosion of aluminum alloy under tribological conditions. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-021-02245-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractAn eco-friendly green corrosion inhibitor Commiphora Mukul was tested for its efficacy to control material loss in 6061 aluminum alloy under collective influence of mechanical erosion and electrochemical corrosion in a submerged jet impingement rig. Electrochemical techniques were utilized in the current investigation which consisted of potentiodynamic polarization and electrochemical impedance spectroscopy. The effect of temperature and flowrate of artificial seawater slurry on the inhibitory effect of Commiphora Mukul is investigated. Under the experimental conditions of 303 K temperature and 4 L min−1 flowrate, the inhibitor showed an efficiency of 54% as determined by the potentiodynamic polarization studies. With the increase in temperature and flowrate of artificial seawater slurry, the protection efficiency of the inhibitor decreased. Protection efficiency of 35% was observed. Possible reasons for this phenomenon were discussed. Electrochemical impedance studies reported that the process is both charge transfer and diffusion controlled. At 323 K, the diffusion component was prominent for all the studied flowrates of 4 L min−1, 8 L min−1, and 12 L min−1. It seems that the moving medium makes it challenging for the inhibitor molecules to adsorb on the metal surface in the presence of abrasive particles.
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Święch D, Palumbo G, Piergies N, Pięta E, Szkudlarek A, Paluszkiewicz C. Spectroscopic Investigations of 316L Stainless Steel under Simulated Inflammatory Conditions for Implant Applications: The Effect of Tryptophan as Corrosion Inhibitor/Hydrophobicity Marker. COATINGS 2021; 11:1097. [DOI: 10.3390/coatings11091097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
In this paper, the conformational changes of tryptophan (Trp) on the corroded 316 L stainless steel (SS) surface obtained under controlled simulated inflammatory conditions have been studied by Raman (RS) and Fourier-transform infrared (FT-IR) spectroscopy methods. The corrosion behavior and protective efficiency of the investigated samples were performed using the potentiodynamic polarization (PDP) technique in phosphate-buffered saline (PBS) solution acidified to pH 3.0 at 37 °C in the presence and absence of 10−2 M Trp, with different immersion times (2 h and 24 h). The amino acid is adsorbed onto the corroded SS surface mainly through the lone electron pair of the nitrogen atom of the indole ring, which adopts a more/less tilted orientation, and the protonated amine group. The visible differences in the intensity of the Fermi doublet upon adsorption of Trp onto the corroded SS surface, which is a sensitive marker of the local environment, suggested that a stronger hydrophobic environment is observed. This may result in an improvement of the corrosion resistance, after 2 h than 24 h of exposure time. The electrochemical results confirm this statement—the inhibition efficiency of Trp, acting as a mixed-type inhibitor, is made drastically higher after a short period of immersion.
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Affiliation(s)
- Dominika Święch
- Faculty of Foundry Engineering, AGH University of Science and Technology, al. Mickiewicza 30, PL-30059 Krakow, Poland
| | - Gaetano Palumbo
- Faculty of Foundry Engineering, AGH University of Science and Technology, al. Mickiewicza 30, PL-30059 Krakow, Poland
| | - Natalia Piergies
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Ewa Pięta
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
| | - Aleksandra Szkudlarek
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, PL-30059 Krakow, Poland
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Singh JK, Yang HM, Lee HS, Mandal S, ASLAM F, Alyousef R. Role of L-arginine on the formation and breakdown of passive film onto the steel rebars surface in chloride contaminated concrete pore solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Natarajan R, Al Shibli F. Corrosion inhibition of aluminum under basic conditions using Medicago sativa L. extract — thermodynamic studies. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0851-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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37
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Ziziphus joazeiro Stem Bark Extract as a Green Corrosion Inhibitor for Mild Steel in Acid Medium. Processes (Basel) 2021. [DOI: 10.3390/pr9081323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The aqueous extract of Joazeiro stem bark (EJSB) and its high molecular weight fraction (HMWF) were examined as potential corrosion inhibitors of mild steel in 1 mol L−1 hydrochloric acid media, using weight-loss measurements, potentiodynamic polarization curves and an electrochemical impedance spectroscopy (EIS).Varying the concentration of the inhibitors from 100 to 800 mg L−1, the results show an increase in anticorrosive efficiency from 85.4 to 89.8 and 89.8 to 93.0% for EJSB and its HMWF, respectively, using the data of the gravimetric essay, and from 84.5 to 94.5 and 89.9 to 94.7% for EJSB and its HMWF, respectively, from the impedance data. The composition of the crude extract was chemically characterized by liquid chromatography-high resolution mass spectrometry. Additionally, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) were used, respectively, to morphologically and chemically characterize the surface. Considering that the saponin molecules, the main constituent from juá, are responsible for its inhibitory action, quantum chemical calculations showed that the C67, C69 and O144 atoms likely have an important role in the process of electron-donation of saponin to metal, due to the higher values of ƒk+ and %HOMO observed on these atoms.
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A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment. METALS 2021. [DOI: 10.3390/met11071062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces. In return, this may lead to over-etching and metal degradation. Corrosion inhibitors were introduced as a solution for the issue. However, there are some problems associated with the usage of conventional corrosion inhibitors. Traces of nitrites and chromates that are present in the inhibitors may lead to serious health and environmental issues. As a solution, organic green corrosion inhibitors have been studied to replace the conventional corrosion inhibitors. These inhibitor molecules form a protective layer on top of the metal surface to suppress metal dissolution when added to the acid solution. This process prevents direct contact between the metal surfaces and the acid environment. This study explores the usage of natural resources and biomass wastes as the basis for organic green corrosion inhibitors. This study also provides some suggestions for new biomass wastes that can be studied as new organic corrosion inhibitors, and it is aimed at opening the perspective of researchers on exploring new organic inhibitors by using natural resources and biomass wastes.
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Chen M, Wang X, Zhang H. Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 288:112388. [PMID: 33774561 DOI: 10.1016/j.jenvman.2021.112388] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
In this study, we used xanthate to modify two waste biomass materials (corn cob and chestnut shell) and prepared them as biosorbents in one step for effectively removing Pb(II) from aqueous solutions containing only Pb(II) or Pb(II), Cu(II) and Cd(II). The two biosorbents were characterized by SEM, EDS, FTIR and Zeta potential analysis, and the results of the characterization were used to explore the adsorption mechanism of Pb(II) on biosorbents. We compare the Pb(II) removal ability of the two biosorbents and the investigated factors that affect Pb(II) removal. The results show that the adsorption capacity of xanthate modified corn cob (X-CC) and xanthate modified chestnut shell (X-CS) for Pb(II) is related to pH, reaction time, temperature and initial concentrations of both adsorbent and adsorbate. The adsorption of Pb(II) on X-CC and X-CS follows Langmuir isotherm equation and quasi-secondary kinetic equation, and their fitted qm values are 166.39 and 124.84 mg g-1, respectively. The analysis shows that the biosorbent has high selectivity to Pb(II) rather than Cu(II) and Cd(II), and still maintains a high removal rate of Pb(II) in actual wastewater. The biosorbents remove metal ions mainly through ion exchange reaction and the functional group in the material complexes with the metal to form micro-precipitation. The high adsorption capacity in aqueous solution and low costs in the manufacturing process of the present biosorbents ensure that they have great potential in practical applications for treating heavy-metal contaminated surface water.
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Affiliation(s)
- Ming Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China; Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China.
| | - Xianfeng Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Hao Zhang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
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Kasprzhitskii A, Lazorenko G. Corrosion inhibition properties of small peptides: DFT and Monte Carlo simulation studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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41
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Kaur J, Daksh N, Saxena A. Corrosion Inhibition Applications of Natural and Eco-Friendly Corrosion Inhibitors on Steel in the Acidic Environment: An Overview. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-05699-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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42
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Xhanari K, Wang Y, Yang Z, Finšgar M. A Review of Recent Advances in the Inhibition of Sweet Corrosion. CHEM REC 2021; 21:1845-1875. [PMID: 34028183 DOI: 10.1002/tcr.202100072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/28/2021] [Accepted: 05/03/2021] [Indexed: 11/11/2022]
Abstract
This review paper discusses the research work published in the last decade on the use of organic compounds and natural products as corrosion inhibitors for steel in CO2 and CO2 /H2 S coexisting environments. The carbon and mild steel samples tested are mostly immersed in CO2 -saturated NaCl/brine solutions or simulated oilfield waters. The influence of temperature, immersion time, CO2 partial pressure, pre-corrosion, flow rate/rotation speed, and the synergistic effect of other compounds on the corrosion inhibition effectiveness of organic compounds and natural products is presented. Primarily, weight loss and electrochemical techniques were used to evaluate the corrosion inhibition effectiveness of these compounds.
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Affiliation(s)
- Klodian Xhanari
- Faculty of Natural Sciences, Department of Chemistry, University of Tirana, Tirana, Albania.,Faculty of Chemistry and Chemical Engineering, Laboratory for Analytical Chemistry and Industrial Analysis, University of Maribor, Maribor, Slovenia
| | - Yefei Wang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Zhen Yang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, China
| | - Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, Laboratory for Analytical Chemistry and Industrial Analysis, University of Maribor, Maribor, Slovenia
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Dollar O, Joshi N, Beck DAC, Pfaendtner J. Attention-based generative models for de novo molecular design. Chem Sci 2021; 12:8362-8372. [PMID: 34221317 PMCID: PMC8221056 DOI: 10.1039/d1sc01050f] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/14/2021] [Indexed: 11/21/2022] Open
Abstract
Attention mechanisms have led to many breakthroughs in sequential data modeling but have yet to be incorporated into any generative algorithms for molecular design. Here we explore the impact of adding self-attention layers to generative β-VAE models and show that those with attention are able to learn a complex "molecular grammar" while improving performance on downstream tasks such as accurately sampling from the latent space ("model memory") or exploring novel chemistries not present in the training data. There is a notable relationship between a model's architecture, the structure of its latent memory and its performance during inference. We demonstrate that there is an unavoidable tradeoff between model exploration and validity that is a function of the complexity of the latent memory. However, novel sampling schemes may be used that optimize this tradeoff. We anticipate that attention will play an important role in future molecular design algorithms that can make efficient use of the detailed molecular substructures learned by the transformer.
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Affiliation(s)
- Orion Dollar
- Department of Chemical Engineering, University of Washington Seattle 98185 WA USA
| | - Nisarg Joshi
- Department of Chemical Engineering, University of Washington Seattle 98185 WA USA
| | - David A C Beck
- Department of Chemical Engineering, University of Washington Seattle 98185 WA USA
- eScience Institute, University of Washington Seattle 98185 WA USA
| | - Jim Pfaendtner
- Department of Chemical Engineering, University of Washington Seattle 98185 WA USA
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Singh AK, Chugh B, Singh M, Thakur S, Pani B, Guo L, Kaya S, Serdaroglu G. Hydroxy phenyl hydrazides and their role as corrosion impeding agent: A detail experimental and theoretical study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115605] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
This paper provides a synthetic and comprehensive overview on environmentally friendly anticorrosive polymeric coatings. Firstly, the economic and environmental impact of corrosion is presented to highlight the need of anticorrosive polymeric coatings as a flexible and effective solution to protect a metal. Secondly, the implementation of regulations together with the consumer awareness for environmental considerations and protection of health are the driving force for a progressive but significant change in the sector. Therefore, within the protective organic coatings market, this article provides a review of the most recent developments in environmentally friendly solutions, including bio-based and water-borne epoxy, hyperbranched polyester for low- volatile organic compounds (VOC) coatings, waterborne polyurethane and non-isocyanate polyurethanes (NIPUs), and graphene or bio-based fillers for acrylics. Moreover, this paper outlines new trends such as smart additives, bio-based corrosion inhibitors, and functional antibiocorrosive coatings as superhydrophobics. Finally, industrially relevant applications of environmentally friendly anticorrosive polymeric coatings including solutions for marine and off-shore industries are summarized.
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Idouhli R, Oukhrib A, Khadiri M, Zakir O, Aityoub A, Abouelfida A, Benharref A, Benyaich A. Understanding the corrosion inhibition effectiveness using Senecio anteuphorbium L. fraction for steel in acidic media. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129478] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Bouoidina A, Ech-chihbi E, El-Hajjaji F, El Ibrahimi B, Kaya S, Taleb M. Anisole derivatives as sustainable-green inhibitors for mild steel corrosion in 1 M HCl: DFT and molecular dynamic simulations approach. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115088] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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48
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Alrefaee SH, Rhee KY, Verma C, Quraishi M, Ebenso EE. Challenges and advantages of using plant extract as inhibitors in modern corrosion inhibition systems: Recent advancements. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114666] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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49
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Al‐Fakih AM, Al‐Maqtari HM, Aziz M, Jamalis J, Emran KM. Effect of substituents on the inhibitive properties of newly synthesized 5‐benzoyl‐4‐methyl‐1,3,4,5‐tetrahydro‐2
H
‐1,5‐benzodiazepin‐2‐one derivatives against mild steel corrosion in an acidic medium. MATERIALS AND CORROSION 2020; 71:2070-2082. [DOI: 10.1002/maco.202011736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/27/2020] [Indexed: 09/01/2023]
Affiliation(s)
- Abdo M. Al‐Fakih
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Malaysia
- Department of Chemistry, Faculty of Science Sana'a University, Sana'a Yemen
| | - Helmi M. Al‐Maqtari
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Malaysia
- Department of Chemistry, Faculty of Education Hodeidah University Hodeidah Yemen
| | - Madzlan Aziz
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Malaysia
| | - Joazaizulfazli Jamalis
- Department of Chemistry, Faculty of Science Universiti Teknologi Malaysia Johor Malaysia
| | - Khadijah M. Emran
- Department of Chemistry, College of Science Taibah University Al‐Madinah Al‐Monawarah Saudi Arabia
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A Surface Morphological Study, Poly(Vinyl Chloride) Photo-Stabilizers Utilizing Ibuprofen Tin Complexes against Ultraviolet Radiation. SURFACES 2020. [DOI: 10.3390/surfaces3040039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this work, three Ibuprofen tin complexes were synthesized and characterized by Fourier Transform Infrared spectroscopy (FTIR), 1H and 119Sn-Nuclear Magnetic Resonance (NMR), and Energy Dispersive X-ray (EDX) spectroscopies to identify the structures. The complexes were mixed separately with poly(vinyl chloride) (PVC) to improve its photo-stability properties. Their activity was demonstrated by several approaches of the FTIR to exhibit the formation of new groups within the polymer structure due to the exposure to UV light. Moreover, the polymer’s weight loss during irradiation and the average molecular weight estimation using its viscosity before and after irradiation were investigated. Furthermore, different techniques were used to study the surface morphology of the PVC before and after irradiation. Field-emission scanning electron microscopy (FESEM) and optical microscope demonstrated that applying Ibuprofen tin complexes keeps the surface of PVC smoother, with fewer cracks and spots after irradiation comparing to the blank PVC. Finally, It seems possible that such synthesized Ibuprofen tin complexes can work as excellent photo-stabilizers of PVC. In particular, complex 1 showed the best results among other stabilizers due to the large conjugation system of the stabilizer.
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