Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Jurnal Abdi Negeriku Hayyan Journal
Andi Eka Kartika
Universitas Negeri Makassar
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Medicine & Pharmacology Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Kinetics of Phenol Degradation Using TiO₂/Zeolite Composite Andi Eka Kartika; Sumiati Side; Diana Eka Pratiwi; Nur Afni
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4138

Abstract

Phenol is a hazardous organic pollutant commonly found in industrial wastewater and is difficult to degrade through conventional treatment methods, thus requiring more effective and sustainable approaches. Photocatalytic degradation using TiO₂ has been widely explored; however, its performance is limited by rapid electron–hole recombination and low surface area. Combining TiO₂ with zeolite enhances adsorption capability and increases the availability of active sites, offering a promising strategy to improve photocatalytic efficiency. This study aims to analyze the kinetic behavior of phenol degradation using a TiO₂/zeolite composite and to determine the optimum irradiation time based on a pseudo-first-order kinetic model. Irradiation times of 15, 30, 45, 60, and 75 minutes were applied, and phenol concentrations were measured using UV–Vis spectrophotometry at 270,20 nm. The results show rapid degradation during the first phase (15-30 minutes), with removal efficiency increasing from 83,014% to 87,315%. After 30 minutes, the degradation rate becomes nearly constant, indicating the attainment of photocatalytic dynamic equilibrium. The -ln(Ct/C0) plot reveals two distinct reaction phases: an initial high-rate phase followed by a plateau phase. Therefore, 30 minutes is identified as the most efficient irradiation time, representing the point at which maximum degradation is achieved before the reaction rate significantly decreases. These findings provide meaningful insight into the photocatalytic kinetics of TiO₂/zeolite composites and support their potential application in phenolic wastewater treatment.
Progress in Electrochemical MIP Sensors for Detection of Bisphenol A: A Mini review Andi Eka Kartika; Andi Bulqiah Nur Bunyamin
Hayyan Journal Vol. 3 No. 2 (2026): June
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v3i2.5151

Abstract

Bisphenol A (BPA) is an endocrine-disrupting chemical widely used in the production of polycarbonate plastics and epoxy resins, raising concerns regarding its migration into food, beverages, and the environment. This mini-review summarizes recent advances in molecularly imprinted polymer (MIP)-based electrochemical sensors for BPA detection, with emphasis on recent developments in sensor fabrication, nanomaterial modification, and analytical performance. The review discusses MIP synthesis strategies, sensor platforms, nanomaterial modifications, and analytical performance. Recent studies have demonstrated that MIP-based electrochemical sensors can achieve highly sensitive BPA detection with limits of detection ranging from 0.03 pM to 52 nM, wide linear ranges, and successful application in real samples such as drinking water, milk, and packaged beverages. The incorporation of nanomaterials, including graphene, carbon nanotubes, and gold nanoparticles, has significantly improved electron transfer, sensitivity, and selectivity. Despite these advances, challenges related to long-term stability, reproducibility, template removal efficiency, and matrix interference remain. Overall, MIP-based electrochemical sensors represent a promising platform for rapid, selective, and cost-effective BPA monitoring in environmental and food safety applications.
EDUKASI PEMANFAATAN PRODUK TULANG IKAN BANDENG MENJADI KERUPUK BERGIZI BERNILAI TAMBAH BAGI MASYARAKAT KELURAHAN SAPANANG, KABUPATEN PANGKEP Iwan Dini; Hasri Hasri; Andi Eka Kartika; Sri Magfirah
Jurnal Abdi Negeriku Vol 5, No 1 (2026): Jurnal Abdi Negeriku
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/jan.v5i1.84813

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan pemahaman masyarakat mengenai pemanfaatan tulang ikan bandeng sebagai bahan baku kerupuk bergizi bernilai tambah. Kegiatan dilaksanakan di SMA Negeri 11 Pangkep pada tanggal 25 April 2026 dengan melibatkan 25 peserta yang terdiri atas masyarakat Kelurahan Sapanang, ibu rumah tangga, pelaku UMKM, petani, dan mahasiswa. Metode pelaksanaan dilakukan melalui pendekatan edukatif, partisipatif, dan evaluatif yang meliputi penyampaian materi, pemutaran video proses pengolahan, diskusi, serta pemberian pretest dan posttest. Hasil kegiatan menunjukkan adanya peningkatan pengetahuan peserta setelah mengikuti pelatihan. Nilai rata-rata pretest sebesar 56,80 meningkat menjadi 89,92 pada posttest. Hasil uji Wilcoxon Signed Rank Test menunjukkan nilai Asymp. Sig. (2-tailed) <0,001 yang mengindikasikan adanya perbedaan signifikan antara nilai sebelum dan sesudah pelatihan. Selain meningkatkan pengetahuan, kegiatan ini juga memberikan pemahaman kepada masyarakat bahwa tulang ikan bandeng yang selama ini dianggap limbah memiliki potensi untuk diolah menjadi produk pangan bergizi dan bernilai ekonomis. Tingginya partisipasi peserta selama diskusi menunjukkan adanya ketertarikan masyarakat terhadap pengembangan produk berbasis sumber daya lokal. Kegiatan ini diharapkan dapat menjadi langkah awal dalam mendukung pemanfaatan limbah hasil perikanan serta pengembangan usaha pangan berbasis potensi lokal di masyarakat pesisir.
Co-Authors Andi Bulqiah Nur Bunyamin Diana Eka Pratiwi Hasri Hasri Iwan Dini Nur Afni Sri Magfirah Sumiati Side