A green approach to corrosion inhibition of mild steel in hydrochloric acid using fruit rind extract of Garcinia indica (Binda)

Thomas, Asha; Prajila, M.; Shainy, K.M.; Abraham, Jayanthi

doi:10.1016/j.molliq.2020.113369

Cited by 58 publications

(10 citation statements)

References 29 publications

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“…It is clear from Table 2, that the Rp values and the inhibition efficiency of CI leaf extract decreased markedly with a rise in the temperature, reaching minimum efficiency at 323 K. The decrease in IE% may be due to the desorption of inhibitor molecules from the metal surface and temperature reduces the ability of CI inhibitor molecule to adsorb on the mild steel surface at an elevated temperature. [37]. As shown in Fig.…”

Section: Effect Of Temperaturesmentioning

confidence: 82%

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Neriyana

Alva

2020

Chemistry Africa

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The anticorrosive activity of Combretum indicum (CI) leaf extract has been examined on mild steel corrosion in 1M HCl by using weight loss and electrochemical measurement techniques. The results of these experimental techniques have consistent in confirming the effect of the CI leaf extract on corrosion inhibition and a mechanism for the inhibition was proposed. The dissolution rate of steel in acidic solution was found to be sensitive to the concentration of CI leaf extract and the corrosion rate reduces when the concentration of CI leaf extract is increased and reaches the high protection efficiency. The potentiodynamic polarization study confirms the mixed mode of inhibition. Ultraviolet-visible (UV) and Fourier-transform infrared (FTIR) spectroscopic techniques were performed to evaluate the phenomenon of adsorption in the plant extract and the functional groups. The surface morphology analysis (SEM) further corroborates the adsorption of inhibitor molecules over the metal surface.

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Section: Effect Of Temperaturesmentioning

confidence: 82%

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Neriyana

Alva

2020

Chemistry Africa

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“…The steel specimens were immersed in HCl and H 2 SO 4 acid solutions without and with an effective concentration of OPE (200 mg L −1 ) for 24 h. Then, using FESEM (Sigma, Zeiss), microscopic images were taken of the surface to observe the changes that had occurred. The EDX analysis was carried out under the same conditions as FESEM analysis (Thomas et al 2020 ).…”

Section: Methodsmentioning

confidence: 99%

Novel use of kitchen waste: protection of boiler quality steel from corrosion in acidic media using onion waste

Pal

Das

2022

Chem. Pap.

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An eco-friendly approach to inhibit the corrosion of boiler quality (BQ) steel by onion waste in acidic media was investigated. The extract from onion peel was characterized using the conventional extraction method and was characterized using HPLC. The efficacy of the onion peel extract (OPE) as a green corrosion inhibitor was studied using the weight loss method and a variety of electrochemical techniques, including open-circuit potential (OCP), potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS). The Tafel polarization revealed that at 200 mg L −1 of onion peel extract (OPE), corrosion current density was reduced maximum in both 1 (M) HCl and 0.5 (M) H 2 SO 4 media. From the electrochemical impedance spectroscopy studies, the maximum inhibition efficiencies of 91.30% and 90.71% were found at 200 mg L −1 in 1 (M) HCl and 0.5 (M) H 2 SO 4 , respectively. The Langmuir isotherm was determined to be the best-fitting model, and the thermodynamic parameter, such as free energy , was computed, which indicated the physisorption of OPE onto the BQ surface. In theoretical investigations, density functional theory DFT was used to determine the adsorption efficiency and reactive sites of the OPE molecule by exploring various quantum chemical parameters. Supplementary Information The online version contains supplementary material available at 10.1007/s11696-022-02549-7.

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“…The broad peak at 1001 cm À1 is ascribed to C-O-C stretching vibration and a weak band at 556 cm À1 is due to the C-H bending vibration. [26][27][28] The presence of THQ was detected from the electronic spectrum with an absorption maximum of 200-360 nm with an absorption maximum of around 290 nm. AYW shows an absorption maximum at 279.01 nm, indicating the presence of THQ in the extract in the wavelength range of 200-800 nm.…”

Section: Spectral Analysismentioning

confidence: 99%

“…The presence of THQ alone or its synergistic interaction with the other minor components, mainly coumarins, makes the extract a more efficient corrosion inhibitor for mild steel corrosion. The active components THQ and coumarin present in AYW are separated by a distance of 2.22235 Å on the metal surface aer adsorption 12,27,28,34,[41][42][43][44][45] (Fig. 8).…”

Section: Quantum Chemical Calculationsmentioning

confidence: 99%

The co-adsorption of thymohydroquinone dimethyl ether (THQ) and coumarin present in the aqueous extract of Ayapana triplinervis on mild steel and its protection in hydrochloric acid up to 323 K: computational and physicochemical studies

Thomas

Kuruvilla³

et al. 2022

RSC Adv.

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A green approach to corrosion inhibition of mild steel in hydrochloric acid using fruit rind extract of Garcinia indica (Binda)

Cited by 58 publications

References 29 publications

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

A Green Approach: Evaluation of Combretum indicum (CI) Leaf Extract as an Eco-friendly Corrosion Inhibitor for Mild Steel in 1M HCl

Novel use of kitchen waste: protection of boiler quality steel from corrosion in acidic media using onion waste

The co-adsorption of thymohydroquinone dimethyl ether (THQ) and coumarin present in the aqueous extract of Ayapana triplinervis on mild steel and its protection in hydrochloric acid up to 323 K: computational and physicochemical studies

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