Protech Biosystems Journal
Vol 5, No 1 (2025): Protech Biosystem Journal

Utilization of Pumpkin seed waste extract as an inhibitor in reducing the corrosion rate on metals

Hidayatullah, Syarif (Unknown)
Sari, Nasmi Herlina (Unknown)
Huda, Ahmad Akromul (Unknown)
Pradityatama, Maharsa (Unknown)
Sinarep, Sinarep (Unknown)
suteja, suteja (Unknown)



Article Info

Publish Date
15 Jun 2025

Abstract

Our research focuses on enhancing the potential of pumpkin seed waste extract as a sustainable corrosion inhibitor for metal (Fe) in 1 M HCl solution. Phytochemical screening and antioxidant activity were identified. Various investigative methodologies including experimental techniques such as Potentiodynamic Polarization (PDP) were used to evaluate the effectiveness of these pumpkin seed waste extract inhibitors in inhibiting corrosion. Electrochemical results showed that the effectiveness of the inhibitor was concentration dependent here reaching 83.11% at 3000 g/L pumpkin seed waste extract inhibitor. The PDP showed that the mixed inhibition control effectively retarded the corrosion of the metal. Furthermore, the adsorption behavior of the pumpkin seed waste extract inhibitor onto the metal follows the Langmuir isotherm model with physisorption properties. The adsorption mechanism of the inhibitor on the metal surface successfully formed a protective film on the metal surface thereby reducing the corrosion rate.  

Copyrights © 2025






Journal Info

Abbrev

PROTECH

Publisher

Subject

Agriculture, Biological Sciences & Forestry Energy Engineering

Description

Protech Biosystems Journal is a peer-refereed open-access journal which has been established for the dissemination of state-of-the-art knowledge in the field of Agricultural Enginering (Agricultural Mechanization, waters and land resources Engineering, Energy, Bioprocess and Postharvest Technology) ...