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Photocatalytic Degradation of Lignin using TiO2 from Ilmenite Prepared by Microwave Method Irwan, Irwan; Maindi, Andri Jahir; Edihar, Muh; Nurdin, Muhammad; Salim, La Ode Agus
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): January-April
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v1i1.7

Abstract

This study investigates the photocatalytic degradation of lignin using TiO2 extracted from ilmenite through a microwave-assisted method. Characterization of the iron sand, which serves as the source of ilmenite, was conducted using X-ray fluorescence spectroscopy (XRF) and Energy Dispersive X-ray Spectroscopy (EDX). The XRF analysis revealed that the iron sand primarily consists of Fe and TiO2, with minor impurities such as Al2O3, MgO, and SiO2. After extraction, the iron mineral content increased significantly, while impurities decreased. EDX analysis confirmed the presence of Fe, O, and Ti elements in the iron sand sample, originating from various iron oxide phases. Subsequent degradation tests on lignin with varying microwave heating durations of ilmenite showed that a 90-minute heating duration achieved the highest lignin degradation percentage of 56.69%. This suggests that the optimum heating time for ilmenite is crucial for maximizing its photocatalytic activity. Overall, the findings highlight the potential of microwave-prepared TiO2 from ilmenite for efficient lignin degradation, with implications for environmental remediation and industrial applications.
Overview of Biomass Hydrothermal Techniques for Carbon Quantum Dots Synthesis: Mini Review Salim, La Ode Agus; Irwan, Irwan
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): January-April
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v1i1.16

Abstract

The aim of this study is to provide a comprehensive overview of various biomass hydrothermal techniques used in the synthesis of carbon quantum dots (CQDs), as well as to identify recent developments in this field. Careful literature search methods were employed to gather information related to biomass hydrothermal techniques and CQD synthesis, applying inclusion and exclusion criteria to select articles that align with the research focus. Data analysis approaches were used to organize and present relevant information. The main findings of this review encompass a range of hydrothermal techniques used in CQD synthesis, including diverse biomass feedstocks and process parameters influencing the final outcomes. Furthermore, the review also reveals recent advancements in CQD applications, such as in photocatalysis, biomedicine, and optoelectronics. The findings of this review have significant implications for further development in CQD synthesis using biomass hydrothermal techniques, with the potential application of this technology in various high-tech fields, including renewable energy, biomedicine, and sensing. Overall, this review provides an in-depth understanding of recent advancements in biomass hydrothermal techniques for CQD synthesis, highlighting the substantial potential of this research in supporting innovation across various application domains.
Exploring Carbon-Based Derivative Electrodes for Voltammetric Detection of Profenofos Pesticide in Environment: A Review Edihar, Muh; Zulkarnaen, Muhammad Aryo; Salim, La Ode Agus
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): January-April
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v1i1.17

Abstract

Detection and monitoring of pesticide residues in the environment have become crucial due to their potential adverse effects on human health and ecosystems. Among these pesticides, Profenofos has garnered primary attention due to its widespread usage and persistence in agricultural practices. Voltammetric techniques offer a promising approach for sensitive and selective detection of Profenofos, with carbon-based derivative electrodes emerging as highly promising candidates. This review critically examines recent advancements in the utilization of carbon derivative electrodes for Profenofos detection via voltammetry. It explores the fundamental principles, fabrication methods, and performance characteristics of these electrodes, highlighting their strengths and limitations. Additionally, the review discusses strategies for enhancing the sensitivity, selectivity, and stability of carbon derivative electrodes, as well as their potential application in environmental monitoring and agricultural practices. Through a comprehensive synthesis of recent research findings, this review aims to provide valuable insights into the current status, challenges, and future directions in the field of Profenofos pesticide detection using carbon derivative electrodes and voltammetric techniques.
Pemberdayaan Masyarakat Desa Kaloloa melalui Penerapan Teknologi EcoAquaCleanse berbasis Limbah Kelapa untuk Mengatasi Pencemaran Air Bersih Nurdin, Muhammad; Maulidiyah, Maulidiyah; Mustapa, Faizal; Salim, La Ode Agus
Jurnal Mandala Pengabdian Masyarakat Vol. 5 No. 2 (2024): Jurnal Mandala Pengabdian Masyarakat
Publisher : Progran Studi Farmasi Universitas Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35311/jmpm.v5i2.443

Abstract

Desa Kaloloa, yang terletak di pesisir Kabupaten Kolaka, Sulawesi Tenggara, menghadapi masalah serius terkait akses terhadap air bersih yang layak konsumsi. Masalah ini terutama disebabkan oleh pencemaran air yang berasal dari berbagai aktivitas, termasuk pembuangan sampah, dan limbah industri. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan pemahaman dan keterampilan masyarakat Desa Kaloloa dalam pengelolaan air bersih melalui penerapan teknologi EcoAquaCleanse berbasis sabut kelapa. Metode yang digunakan mencakup sosialisasi, pelatihan praktis, dan evaluasi efektivitas teknologi melalui uji lapangan. Hasil evaluasi menunjukkan adanya peningkatan pengetahuan yang signifikan setelah pelatihan, dengan mayoritas peserta memahami teknologi dan mampu mengaplikasikannya dengan baik. Selain itu, hasil uji coba teknologiEcoAquaCleanse menunjukkan efektivitas yang tinggi dalam meningkatkan kualitas air bersih sesuai dengan standar yang ditetapkan. Kesimpulannya, kegiatan ini berhasil meningkatkan kapasitas masyarakat dalam mengelola air bersih secara mandiri dan berkelanjutan, serta memperkuat kesadaran tentang pentingnya konservasi lingkungan. Implementasi teknologi ini juga terbukti sebagai solusi yang efektif dan ramah lingkungan untuk mengatasi masalah pencemaran air di Desa Kaloloa.
Pemberdayaan Masyarakat Desa Puu Lawulo melalui Penerapan Teknologi EcoHydroCoco: Pengolahan Air Bersih Faizal Mustapa; Said, Anwar; Jusniati, Jusniati; Salim, La Ode Agus
Jurnal Mandala Pengabdian Masyarakat Vol. 5 No. 2 (2024): Jurnal Mandala Pengabdian Masyarakat
Publisher : Progran Studi Farmasi Universitas Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35311/jmpm.v5i2.444

Abstract

Desa Puu Lawulo di Kecamatan Samaturu, Kabupaten Kolaka, Sulawesi Tenggara, menghadapi permasalahan serius terkait akses terhadap air bersih yang layak konsumsi akibat pencemaran lingkungan. Untuk mengatasi masalah ini, diterapkan teknologi EcoHydroCoco yang memanfaatkan sabut dan tempurung kelapa sebagai bahan penyaring air. Kegiatan pengabdian ini melibatkan 35 peserta dari masyarakat desa, dengan tujuan meningkatkan pemahaman dan keterampilan mereka dalam pengolahan air bersih menggunakan teknologi EcoHydroCoco. Metode pelaksanaan terdiri dari analisis situasi, sosialisasi, pelatihan, praktik pembuatan, serta evaluasi melalui pre-test dan post-test. Hasil kegiatan menunjukkan peningkatan signifikan dalam pengetahuan peserta, di mana 96,67% dari mereka berhasil mencapai tingkat pengetahuan yang baik setelah pelatihan, dibandingkan dengan 100% yang berada di tingkat rendah sebelum pelatihan. P-value yang rendah juga menegaskan bahwa peningkatan ini signifikan secara statistik. Program ini membuktikan efektivitas teknologi EcoHydroCoco sebagai solusi ramah lingkungan dalam pengelolaan air bersih dan berpotensi untuk meningkatkan kesehatan serta pemberdayaan ekonomi masyarakat lokal.
Bioactive Potential and Antioxidant Activity of Blood Clam (Tegillarca granosa L.) Protein for Functional Food Applications Hasan, Tahirah; Alim, Nur; Salim, La Ode Agus
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 2 (2024): Jurnal Rekayasa Kimia & Lingkungan (December, 2024)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i2.42037

Abstract

This study investigates the antioxidant potential and protein content of the blood clam (Tegillarca granosa L.), a marine species rich in bioactive compounds that could serve as a functional food source. Antioxidants play a crucial role in combating free radicals, which are linked to various degenerative diseases. This research aims to quantify the protein content and evaluate the antioxidant activity of blood clam extracts to assess their potential for functional food applications. The study utilized the Lowry method to measure protein content and the DPPH assay to assess antioxidant activity. Blood clam samples were collected from the coastal region of Pangkep, South Sulawesi. Protein levels were determined using UV-Vis spectrophotometry, while antioxidant activity was quantified by IC50 values. Results indicate that blood clams contain 21.75% protein, with an IC50 antioxidant value of 17.935 0.360 g/mL, which, while lower than ascorbic acid (IC50 = 2.34 g/mL), demonstrates substantial antioxidant activity. This studys unique contribution to the functional food field lies in identifying blood clams as a promising source of both protein and antioxidants, with potential health benefits related to oxidative stress prevention. The practical implications highlight blood clam's suitability as a natural functional food ingredient aimed at supporting overall health.