Characterization of Mazuj galls of Quercus infectoria tree as green corrosion and scale inhibitor for effective treatment of cooling water systems

被引：20

作者：

Mohammadi, Zakiyeh ^{[1
]}

Rahsepar, Mansour ^{[1
]}

机构：

[1] Shiraz Univ, Sch Engn, Dept Mat Sci & Engn, Zand Blvd, Shiraz 7134851154, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2018年 / 44卷 / 03期

关键词：

Corrosion inhibitor; Scale formation; Mazuj gall extract; Cooling water system; Mild steel; CARBON-STEEL CORROSION; MILD-STEEL; FRIENDLY INHIBITOR; EXTRACT; SURFACE; ACID; ALUMINUM;

D O I：

10.1007/s11164-017-3219-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The corrosion and scale inhibition efficiency of Mazuj gall extract in simulated cooling water has been evaluated. Potentiodynamic polarization, electrochemical impedance spectroscopy, gravimetric measurements, and ultraviolet-visible (UV-Vis) spectroscopy were used to investigate the corrosion inhibition efficiency and mechanism. Also, static beaker testing and scanning electron microscopy were applied to evaluate the scale inhibition performance of Mazuj gall extract. It was observed that 1000 ppm Mazuj gall extract provided promising corrosion inhibition efficiency of 94.3% and also excellent scale inhibition efficiency of 97.2%. According to adsorption studies and UV-Vis spectroscopy, the inhibition efficiency of extract can mostly be attributed to formation of insoluble Fe2+ complexes over the steel surface obeying the Langmuir isotherm model and behaving as an anodic-type corrosion inhibitor. It is concluded that Mazuj gall extract can be proposed as an efficient green inhibitor of scale formation and corrosion of mild steel in cooling water.

引用

页码：2139 / 2155

页数：17

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