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Inhibitive effect of cocon nucifera l. (coconut pulp) extract on mild steel acid corrosion
S. Sobri1, N. Rahim2.
In recent years, industrial sectors are concerned with the corrosion of metal and alloys
and they also received huge attention from researcher to overcome these problems. To
decelerate the rate of corrosion or to stop the corrosion to occur, one of the common
methods to deal with this problems is using green inhibitor. The use of local wastes which
are organic in nature for the production of green corrosion inhibitor is no doubt the trend
of the day. To arrive at an inexpensive non-toxic, eco-friendly inhibitor formulation, the
present study on the use of coconut pulp waste extract of Cocon Nucifera L. has been
carried out by the weight loss method. The aim of this project is to study the inhibitive
effect in terms of time and concentration of the coconut pulp waste extract on the acid
corrosion of mild steel in 1.0 M HCL solution. Result showed that the inhibition efficiency
was found to increase with increasing inhibitor concentration up to maximum 94.52% for
10 %v/v at 48 hours immersion time. Examination on the extract by Fourier transform
infrared spectroscopy (FTIR) confirms that the extract contains functional group of N-H,
O-H, C-H, C≡C, C=O, C=C, C-F and C-O that good for corrosion inhibitor while scanning
electron microscopy (SEM) studies showed that the deposition of coconut pulp extract
on the metal surface. The results of all studies confirmed that the extract of coconut pulp
has great potential to prevent the corrosion of mild steel in acidic environment with
highest % IE is 94.52 % and the corrosion rate is 3.6919 x10-5.
Affiliation:
- Universiti Putra Malaysia, Malaysia
- Universiti Putra Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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