Assessment of theBassia muricataextract as a green corrosion inhibitor for aluminum in acidic solution

Abstract

The inhibiting behavior of aluminum by the Bassia muricata extract was examined in 1.0 M H 2 SO 4 solution as a green corrosion inhibitor via weight loss, potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. It was found that the addition of the extract reduces the corrosion rate of aluminum alloy. The inhibition efficiency increases with increasing extract concentration and reached 90% at 300 ppm. The inhibitive effect of the tested extract was discussed in view of adsorption of its components on the aluminum surface. The effect of the temperature on the corrosion behavior with the addition of different concentration of B. muricata extract was studied in the temperature range of 298 and 318 K. The B. muricata extract adsorption isotherm on the aluminum surface was followed the Temkin adsorption model. The activation and adsorption parameters were computed and discussed. Tafel plots showed that the B. muricata extract represented as a mixed type inhibitor. The surface morphology was examined via scanning electron microscopy (SEM) and atomic force microscopy (AFM) which confirmed the existence of a protective film of inhibitor molecule on the aluminum surface. The results revealed that the B. muricata extract was an effective inhibitor, and the inhibition efficiencies gained from all applied techniques were in good agreement.

A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

“…Similar findings were also discussed by Perumal et al [73]. On the other hand, El-Katori and Al-Mhyawi [70] observed that a rise in temperature can decrease the inhibition efficiency, as shown in Figure 3. Salmasifar et al [47] agreed and clarified that this scenario is caused by the rate of desorption of inhibitor molecules being higher than the rate of inhibitor adsorption as the temperature increases [50].…”

Production and investigating the effect of Echium amoenum Fisch- 8Me (part of stem and leaf, wastes) extract as green and cheap corrosion inhibitor on St37 steel in 3.5 wt% NaCl corrosive medium

“…The slopes of the cathode and anode lines are β c and β a , respectively. The level of surface Coverage and inhibition e ciency is shown with ө and IE%, calculated using Formula (1) [22,43].…”

“…Cinnamon [16], Garlic [17], Olive leaf [18], Kleinia grandi ora leaf extract [19], Xylopia ferruginea extract [20], Lavandula mairei [21], Bassia muricata [22], Robinia pseudoacacia Leaves [23], Coconut Leaf [24],…”

Environmentally-friendly Inhibitor From Waste for Aluminium Corrosion in 0.5M Sulphuric Acid Environment

“…Still, an inhibitor is regarded as one of the most cost-effective and convenient means of ghting corrosion, particularly in acid solutions [7][8][9][10][11][12]. The corrosion inhibitive behavior of aluminium in an acid medium using different organic compounds with polar functions such as sulphur, phosphorous, oxygen, and nitrogen has been documented [13][14][15][16][17][18][19][20][21][22][23]. Several processes in the industry have used inorganic and organic inhibitors for corrosion defense, but due to their toxicity and high cost, research awareness has moved towards the use of e cient, cost-effective, nontoxic, and benign corrosion inhibitors.…”