Anticorrosive and Microbial Inhibition Performance of a Coating Loaded with <i>Andrographis paniculata</i> on Stainless Steel in Seawater
Wan Mohamad Ikhmal Wan Mohamad Kamaruzzaman,
Maria Fazira Mohd Fekeri,
Nursabrina Amirah Mohd Nasir,
Nur Aiman Syafiq Mohd Hamidi,
Mohamad Zahid Baharom,
Azila Adnan,
Muhamad Syaizwadi Shaifudin,
Wan Rafizah Wan Abdullah,
Wan Mohd Norsani Wan Nik,
Fariza Hanim Suhailin,
Khamirul Amin Matori,
Chen Soo Kien,
Mohd Hafiz Mohd Zaid,
Mohd Sabri Mohd Ghazali
Affiliations
Wan Mohamad Ikhmal Wan Mohamad Kamaruzzaman
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Maria Fazira Mohd Fekeri
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Nursabrina Amirah Mohd Nasir
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Nur Aiman Syafiq Mohd Hamidi
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Mohamad Zahid Baharom
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Azila Adnan
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Muhamad Syaizwadi Shaifudin
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Wan Rafizah Wan Abdullah
Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Wan Mohd Norsani Wan Nik
Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Fariza Hanim Suhailin
Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
Khamirul Amin Matori
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Chen Soo Kien
Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Mohd Hafiz Mohd Zaid
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
Mohd Sabri Mohd Ghazali
Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
With the trend for green technology, the study focused on utilizing a forgotten herb to produce an eco-friendly coating. Andrographis paniculata or the kalmegh leaves extract (KLE) has been investigated for its abilities in retarding the corrosion process due to its excellent anti-oxidative and antimicrobial properties. Here, KLE was employed as a novel additive in coatings and formulations were made by varying its wt%: 0, 3, 6, 9, and 12. These were applied to stainless steel 316L immersed in seawater for up to 50 days. The samples were characterized and analyzed to measure effectiveness of inhibition of corrosion and microbial growth. The best concentration was revealed to be 6 wt% KLE; it exhibited the highest performance in improving the ionic resistance of the coating and reducing the growth of bacteria.
