Green corrosion inhibition of mild steel in HCl medium using leaves extract of Arbutus unedo L. plant: An experimental and computational approach

Abdelaziz, Samia; Benamira, M.; Messaadia, L.; Boughoues, Yasmine; Lahmar, H.; Boudjerda, Abdelhamid

doi:10.1016/j.colsurfa.2021.126496

Cited by 70 publications

(24 citation statements)

References 46 publications

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“… 50 Therefore, the positive Δ S ads reveals that the regularity of the assembled SPRE constituents is inferior to the irregularity caused by the desorption water molecules. Furthermore, the negative Δ H ads and positive Δ S ads are typical characteristics for a spontaneous reaction, 29 which are consistent with the analysis of Δ G ads .…”

Section: Resultssupporting

confidence: 86%

“…The broad peak centered at 3358 cm −1 is ascribed to the stretching vibration of –OH, resulting from the hydroxyl-terminated polyphenols and flavonoids. 29 The peak at 2928 cm −1 is associated with the stretching vibration of the alkyl groups (–CH 2 –). 27 The stretching of the typical –C O on flavonoids can be identified at 1731 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

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Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights

et al. 2021

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights

et al. 2021

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“…Total flavonoid contents were determined by colorimetric assay [18] with minor modifications. e diluted sample (1 mL) from the above was added to a 10 mL volumetric flask containing 4 mL of distilled water followed by immediate addition of 0.6 mL of 5% NaNO 2 , 0.5 mL of 10% AlCl 3 after 5 min, and 2 mL of 1 M NaOH after 1 min.…”

Section: Total Flavonoid Contentsmentioning

confidence: 99%

Effects of Seed Priming with Zinc Sulfate on Nutritional Enrichment and Biochemical Fingerprints of Momordica charantia

Bukhari

Farah

Mahmood

et al. 2021

Journal of Food Quality

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Zinc is an essential element for plant growth and development as it plays an important role in various metabolic processes with nutritional enrichment. The treatment with zinc sulfate is also economic. Momordica charantia is an economically important medicinal plant reported for a range of pharmaceutical and pharmacological properties. In this study, nutripriming with zinc sulfate (0.1%, 0.2%, and 0.3% solution) was applied to M. charantia seeds to optimize better dose. Based upon seedling establishment, 0.3% zinc sulfate was selected for final field experiment with randomized complete block design (RCBD) with five replications. Improved germination percentage, vigor, total soluble sugars, chlorophyll-a, chlorophyll-b, total chlorophyll content, and peroxidase activity were observed variably in leaves, fruit, and peel. Other nutritive components showed maintenance in fruits of treated plants indicating that the treatment did not cause any nutritive loss. Antimicrobial activity of leaves (in terms of the minimum inhibitory concentration) against Staphylococcus aureus and Pseudomonas aeruginosa was positively correlated with sinapic acid, vanillic acid, cinnamic acid, syringic acid, chlorogenic acid, benzoic acid, and ferulic acid. It has been concluded from this study that seed priming with zinc sulfate can improve seedling establishment, photosynthetic pigments, and stable nutritive value. Therefore, zinc from zinc sulfate priming has been proved as a beneficial fertilizer for M. charantia plant growth, yield, and nutraceutical potential.

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“…In turn, the E bind values are 389.91, 787.33, and 735.40 kJ/mol for DOG, BTS-I, and BTS-III, respectively, indicating that the three compounds exhibit a strong anchoring preference toward the copper surface. 51 In spite of the inferior molecular weight, BTS-I and BTS-III possess a larger magnitude of E bind than that of DOG. This may stem from their superior adsorption configuration on the copper substrate.…”

Section: Adsorptionmentioning

confidence: 99%

Synergetic Anticorrosion Mechanism of Main Constituents in Chinese Yam Peel for Copper in Artificial Seawater

Zhao

Liu

et al. 2021

ACS Omega

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Active constituents of Chinese yam peel (CYPE), namely, diosgenin (DOG), batatasin-I (BTS-I), batatasin-III (BTS-III), and yam polysaccharide (Y-PS), were extracted via an ultrasonic soaking strategy. The synergetic anticorrosion mechanism among these compounds for copper in artificial seawater (ASW) was clarified by gravimetric measurements, electrochemical evaluations, surface analyses, quantum chemical calculations under a dominant solvent model, and molecular dynamics (MD) simulations. The results of weight loss revealed that CYPE strongly inhibited the corrosion of copper in ASW, and the elevating temperature boosted the anticorrosion efficacy of CYPE. The inhibition efficiency could attain 96.33% with 900 mg/L CYPE in ASW at 298 K due to effective adsorption. CYPE simultaneously suppressed the anodic and cathodic reactions for copper in ASW, which could be categorized as the mixed-type corrosion inhibitor with the predominant anodic effect. Similar electrochemical kinetics was evidenced by electrochemical frequency modulation (EFM). Electrochemical impedance spectroscopy (EIS) indicated that CYPE prominently increased the charge-transfer resistance at the copper/electrolyte interface without altering the corrosion mechanism. Extending the immersion time was also conducive for CYPE to further minimize the corrosion of copper in ASW, which was demonstrated by the time-course polarization, EIS, and EFM tests. Owing to the adsorption of CYPE, the copper surface was well-protected and showed reduced wettability and limited variation of roughness. From the outcomes of quantum chemical calculations, global and local reactive descriptors of DOG implied the cross-linked deposition of actually formed dioscin on the copper surface; otherwise, those of BTS-I/-III showed the propensity for parallel adsorption, which could chemically anchor on the voids uncovered by dioscin and thereby synergistically inhibit the corrosion process. The adsorption orientations of DOG, BTS-I, and BTS-III were also consolidated by MD simulations. The findings of this study might be beneficial to inspire the development of eco-friendly corrosion inhibitors from plant wastes for copper in marine environments.

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Green corrosion inhibition of mild steel in HCl medium using leaves extract of Arbutus unedo L. plant: An experimental and computational approach

Cited by 70 publications

References 46 publications

Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights

Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights

Effects of Seed Priming with Zinc Sulfate on Nutritional Enrichment and Biochemical Fingerprints of Momordica charantia

Synergetic Anticorrosion Mechanism of Main Constituents in Chinese Yam Peel for Copper in Artificial Seawater

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