<i>Liriope platyphylla</i>extract as a green inhibitor for mild steel corrosion in sulfuric acid medium

Chung, Ill‐Min; Hemapriya, Venkatesan; Kim, Seung Hyun; Kanchana, P.; Arunadevi, N.; Chitra, S.; Prabakaran, Mayakrishnan; Gopiraman, Mayakrishnan

doi:10.1080/00986445.2019.1692001

Cited by 19 publications

(6 citation statements)

References 79 publications

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“…The shifts in stretching frequencies indicated that the inhibitor physically or chemically interacted on the surface of the metal. As per FT-IR data, the heteroatom of phytochemical constituents present in the inhibitor acted as a Lewis base and formed a protective layer on the metal's surface preventing corrosion [55][56][57][58][59][60].…”

Section: Fourier Transform-infrared Spectroscopic Analysismentioning

confidence: 87%

Use of Trochodendron Aralioides Extract as Green Corrosion Inhibitor for Mild Steel in 1M HCl Solutions

Baskar¹,

Rathinapriya

Prabakaran

2022

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Recently, there is an interesting discussion that has transpired around the world about the usage of plant extracts as corrosion inhibitors. We report that to control corrosion in mild steel (MS) specimens in a 1M HCl medium, Trochodendron aralioides (T. aralioides) extract was used as an economical green corrosion inhibitor. The various tests, namely, potentiodynamic polarization, weight loss measurements and electrochemical impedance spectroscopy (EIS) were performed to analyze the inhibition efficiency (IE) of the extract. The highest IE value of 96.42% was seen at 250 ppm, with the IE% increasing as the extract concentration increased. Potentiodynamic polarization suggests that T. aralioides plant extract acts as a mixed-type inhibitor. UV–visible (UV–Vis) and FT-IR spectroscopy were performed with the inhibitor to study the adsorption mechanism and surface analysis of the specimen, respectively. The results revealed that plant extracts form a protective film on the surface of the specimens, increasing inhibition and thereby reducing corrosion. Surface morphological studies such as AFM, EDX and SEM tests were performed in the presence and absence of the inhibitor with the results being analyzed by observing the surface of the metal.

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Section: Fourier Transform-infrared Spectroscopic Analysismentioning

confidence: 87%

Use of Trochodendron Aralioides Extract as Green Corrosion Inhibitor for Mild Steel in 1M HCl Solutions

Baskar¹,

Rathinapriya

Prabakaran

2022

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“…AFM is a potent tool for determining the surface topography of the polished mild steel exposed to (1 M) HCl along with and without green inhibitor. As shown in Figure 7, the two-dimensional (2D) surface morphology of mild steel treated with 1 M HCl reveals a severe crack in the surface (Figure 7a) and 1 M HCl with 600 ppm inhibitor significantly diminished the surface crack (Figure 7b) [61][62][63]. The average roughness (251 nm) of the mild steel before the exposure to acidic solution were noticed and, in the presence of the optimal concentration of C. tagal plant extract, the reduced average roughness was determined (65 nm), which confirmed the anticorrosion efficiency of the adsorbed inhibitor molecules produced by the protective film [64][65][66].…”

Section: Uv-visible Spectroscopy Analysismentioning

confidence: 98%

“…It is evident that C. tagal extract is competent with other known green inhibitors, as it exhibits the strongest inhibition against mild steel corrosion in 1 M HCl. As in Table 5, plant extracts such as Aster koraiensis (90.53%) [23], Cryptostegia grandiflora (87.54%) [25], sweet melon peel (91.59%) [30], Desmodium triflorum (92.99%), Polycarpaea corymbose (91.78%) [32], Citrullus lanatus (91%) [57], Lawsonia inermis (92.06%) [62], Lepidagathis keralensis (92.73%) [63], Mangifera indica (92%) [64], Mentha pulegium (80%) [65], and Petroselium Sativum (92.39%) [66] were overcome by the acceptable results of C. tagal extract.…”

Section: Corrosion Comparisonmentioning

confidence: 99%

Evaluation of Antioxidant and Anticorrosive Activities of Ceriops tagal Plant Extract

Shamsuzzaman

Kalaiselvi²,

Prabakaran

2021

Applied Sciences

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Mangroves are plants known for their various medicinal and economical values, and therefore are widely investigated for their phytochemical, antioxidant, antidiarrheal, and antimicrobial activities. In the present study, we analyze the antioxidant and anticorrosive properties of Ceriops tagal (C. tagal), a tropical and subtropical mangrove plant of the Rhizophoraceae family. The total phenolic content (TPC) and total flavonoid content (TFC) were found to be 101.52 and 35.71 mg/g, respectively. The extract (100 µg/mL) exhibited 83.88, 85, and 87% antioxidant property against 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide, and hydrogen peroxide free radicals. In addition, 600 ppm of C. tagal extract showed 95% corrosion inhibition against 1 M HCl attack on mild steel at 303 ± 1 K, which declined over other concentrations and temperatures, where AAS produced 82% inhibition at 600 ppm. UV-visible spectroscopy analysis revealed the formation of an inhibitor metal complex. The elemental analysis provided the presence of 84.21, 9.01, and 6.37% of Fe, O, and C, respectively, in inhibited mild steel, whereas the same were 71.54, 22.1, and 4.34%, respectively, in uninhibited specimen, stressing the presence of protective film on the metal surface. Scanning electron microscopy (SEM) also showed some noteworthy changes in both uninhibited and inhibited mild steel, making C. tagal plant a better alternative than any other synthetic inhibitors. Further, the atomic force microscopy (AFM) surface topography analysis showed that 600 ppm of C. tagal extract significantly diminished corrosion on the surface of mild steel.

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“…Liriope platyphylla , belonging to the family Asparagaceae , is used as an herbal medicine with various pharmacological and biological properties, L. platyphylla has effects on asthma, diabetes, obesity and atopic dermatitis [16]. During an investigation of the relationship between L. platyphylla and bacteria, a novel strain of the genus Spirosoma was isolated.…”

Section: Introductionmentioning

confidence: 99%

Ideonella oryzae sp. nov., isolated from soil, and Spirosoma liriopis sp. nov., isolated from fruits of Liriope platyphylla

Jung

Chhetri

Kim

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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Gram-negative, aerobic, motile by means of two or more polar or subpolar flagella, rod-shaped strain NS12-5T and Gram-negative, facultatively anaerobic, yellow-coloured, rod-shaped strain RP8T were isolated from rice rhizosphere soil and fermented fruits of Liriope platyphylla in the Republic of Korea, respectively. The result of phylogenetic analyses based on 16S rRNA gene sequences showed that strain NS12-5T was most closely related to Ideonella aquatica 4Y11T with 99.79 % sequence similarity. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between strain NS12-5T and species of the genus Ideonella were 75.6–91.7 % and 20.3–43.9 %, respectively. Growth occurred at 15–40 °C and pH 5–11, and NaCl was not needed for growth. The major fatty acids of strain NS12-5T were summed feature 3 (comprising C16 : 1 ω7c and/or C16 : 1 ω6c) and C16 : 0, and the major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content of strain NS12-5T was 69.03 mol%. The result of phylogenetic analyses based on 16S rRNA gene sequences revealed that strain RP8T was most closely related to Spirosoma aureum BT328T with 96.01 % sequence similarity. The ANI and dDDH values between strain RP8T and reference strains of the genus Spirosoma were 72.9–76.4 % and 18.6–20.0 %, respectively. Growth occurred at 15–37 °C and pH 5–11, and NaCl was not needed for growth. The major fatty acids of strain RP8T were summed feature 3 (comprising C16 : 1 ω7c and/or C16 : 1 ω6c), C16 : 1 ω5c and iso-C15 : 0. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C contents of strain RP8T were 54.9 mol%. Based on phenotypic, genomic and phylogenetic results, strains NS12-5T and RP8T represent novel species in the genus Ideonella and Spirosoma , respectively, and the names Ideonella oryzae sp. nov. and Spirosoma liriopis sp. nov. are proposed. The type strain of I. oryzae sp. nov. is NS12-5T (=KACC 22691T=TBRC 16346T) and the type strain of S. liriopis is RP8T (=KACC 22688T=TBRC 16345T).

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Liriope platyphyllaextract as a green inhibitor for mild steel corrosion in sulfuric acid medium

Cited by 19 publications

References 79 publications

Use of Trochodendron Aralioides Extract as Green Corrosion Inhibitor for Mild Steel in 1M HCl Solutions

Use of Trochodendron Aralioides Extract as Green Corrosion Inhibitor for Mild Steel in 1M HCl Solutions

Evaluation of Antioxidant and Anticorrosive Activities of Ceriops tagal Plant Extract

Ideonella oryzae sp. nov., isolated from soil, and Spirosoma liriopis sp. nov., isolated from fruits of Liriope platyphylla

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