Electrochemical and surface studies on chemically modified glucose derivatives as environmentally benign corrosion inhibitors

2020 ◽  
Vol 16 ◽  
pp. 100260 ◽  
Author(s):  
Jiyaul Haque ◽  
Vandana Srivastava ◽  
Dheeraj Singh Chauhan ◽  
M.A. Quraishi ◽  
A. Madhan Kumar ◽  
...  
Keyword(s):  
Corrosion Inhibitors ◽  
Environmentally Benign ◽  
Surface Studies ◽  
Chemically Modified ◽  
Glucose Derivatives

Developing Deeper Understanding of Green Inhibitors for Corrosion of Reinforcing Steel in Concrete

2015 ◽  
pp. 118-146 ◽  
Author(s):  
Mohammad Ismail ◽  
Pandian Bothi Raja ◽  
Abdulrahman Asipita Salawu
Keyword(s):  
Corrosion Inhibitors ◽  
Engineering Students ◽  
Inorganic Compounds ◽  
Environmentally Benign ◽  
Reinforcing Steel ◽  
Protection Measures ◽  
Green Inhibitors ◽  
Concrete Corrosion ◽  
Chloride Attack ◽  
Green Corrosion Inhibitors

Corrosion of reinforcing steel in concrete is a very serious and significant problem in the construction industry. The primary cause of corrosion of reinforcing steel is chloride attack or carbonation. Among several protection measures for concrete corrosion, the usage of corrosion inhibitors is very attractive from the view of cost and ease of application. Though there are numerous organic and inorganic compounds that have been tested and applied industrially as corrosion inhibitors, restrictive environmental regulations have compelled and motivated researchers towards the development of cheap, non-toxic and environmentally benign natural or green corrosion inhibitors. Recent studies on green inhibitors have shown that they are more effective and highly environmentally benign compared to synthetic inhibitors used in the industries. This chapter contributes to developing awareness, understanding and innovative involvement of materials and engineering students in this area that is vital to reduce expenditure related to corrosion problems when they serve in the industries.

scholarly journals Recent Natural Corrosion Inhibitors for Mild Steel: An Overview

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Marko Chigondo ◽  
Fidelis Chigondo
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitors ◽  
Impurity Content ◽  
Environmentally Benign ◽  
Acidic Solutions ◽  
Treatment Techniques ◽  
Organic Inhibitors ◽  
Prevention Methods ◽  
Metallic Corrosion ◽  
Work Done

Traditionally, reduction of corrosion has been managed by various methods including cathodic protection, process control, reduction of the metal impurity content, and application of surface treatment techniques, as well as incorporation of suitable alloys. However, the use of corrosion inhibitors has proven to be the easiest and cheapest method for corrosion protection and prevention in acidic media. These inhibitors slow down the corrosion rate and thus prevent monetary losses due to metallic corrosion on industrial vessels, equipment, or surfaces. Inorganic and organic inhibitors are toxic and costly and thus recent focus has been turned to develop environmentally benign methods for corrosion retardation. Many researchers have recently focused on corrosion prevention methods using green inhibitors for mild steel in acidic solutions to mimic industrial processes. This paper provides an overview of types of corrosion, corrosion process, and mainly recent work done on the application of natural plant extracts as corrosion inhibitors for mild steel.

scholarly journals Recent Advances in Biomass-Based Waste Materials for the Removal of Chromium (VI) from Wastewater: A Review

2021 ◽  
Vol 2 (01) ◽  
pp. 37-50
Author(s):  
Rajan Rai ◽  
Dirgha Raj Karki ◽  
Krishna Prasad Bhattarai ◽  
Bishnu Pahari ◽  
Nabina Shrestha ◽  
...  
Keyword(s):  
Literature Review ◽  
Adsorption Capacity ◽  
Environmentally Benign ◽  
Waste Materials ◽  
Health Issues ◽  
High Toxicity ◽  
Chemically Modified ◽  
Chromium Vi ◽  
Modified Adsorbents ◽  
Trace Concentrations

Hexavalent chromium (Cr(VI)) is a critical pollutant with high toxicity, even at trace concentrations. Cr(VI) is possibly carcinogenic and mutagenic and can produce serious health issues. Hence, it is necessary to remove Cr(VI) from the water before releasing it into the environment. Currently, numerous removal techniques were used. Adsorption is the best method compared to others because it is simple, cheap, highly efficient, and can be used in water having trace concentrations of contaminants. Biomass-based waste materials (BMWs) are found as far better adsorbents than commercially and other available adsorbents. In this study, the existing Cr(VI) removal techniques are reviewed and, a broad range of current research studies of Cr(VI) removal from water by using BMWs are evaluated. This review can be helpful to develop a more efficient, cheap, reliable, and environmentally benign bio-adsorbent. It is obvious after the literature review given herein that BMWs exhibited potential adsorbents for the removal of Cr(VI). Also, the chemically modified adsorbents exhibited a higher adsorption capacity than unmodified adsorbents.

scholarly journals Novel Synthesis of Vegetable Oil Derived Corrosion Inhibitors

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Paul Rostron ◽  
Sonia Kasshanna
Keyword(s):  
Corrosion Inhibitors ◽  
Linseed Oil ◽  
Low Cost ◽  
Reduction Factor ◽  
One Pot ◽  
Chemically Modified ◽  
Synthetic Strategy ◽  
Naturally Occurring ◽  
Cress Seed ◽  
The One

Two different naturally occurring vegetable oils, Cress seed oil, and Linseed oil were chemically modified via novel one pot synthesis to produce fatty acid derived amides. These were characterized by their ability to prevent corrosion of carbon steel in vigorously stirred, aerated seawater, one of the most corrosive naturally occurring environments. Corrosion inhibitor efficiencies of up to 99.6% or a corrosion rate reduction factor of 250 in this medium is reported. The one pot synthetic strategy means that the corrosion inhibitors can be made at very low cost.

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