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All Journal Jurnal Mandala Pengabdian Masyarakat Jurnal Rekayasa Kimia & Lingkungan International Journal of Science Technology and Health Asian Journal of Environmental Research
La Ode Agus Salim
Department Of Chemistry, Faculty Of Science And Technology, Institut Sains Teknologi Dan Kesehatan (ISTEK) ‘Aisyiyah Kendari, Kendari 93116–Southeast Sulawesi, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences

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Electrochemical Performance of Tellurium Oxide on TiO2/Ti Array for Photoelectrocatalytic Chemical Oxygen Demand Sensor Applications Maulidiyah Maulidiyah; Irwan Irwan; Annisa Indriani; La Ode Agus Salim; Zul Arham; Catherina M. Bijang; Kurniawan Kurniawan; Muhammad Nurdin
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (July - December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.308 KB) | DOI: 10.23955/rkl.v17i2.27784

Abstract

The experiments were carried out using Te-TiO2/Ti as working electrodes, prepared by the simple anodization technique and dip coating method, on Ti substrates (TiO2/Ti). The measurements were performed in an electrochemical cell using a three-electrode system, with Te-TiO2/Ti as the working electrode, Ag/AgCl as the reference electrode and pt as the auxiliary electrode. A flow system for determining the profile and photocurrent response of reactive orange 84 was developed using Linear Sweep Voltammetry (LSV) and Multi-Pulse Amperometry (MPA). The physicochemical properties of Te-TiO2/Ti electrodes have been studied using UV–vis DRS analysis techniques and compared with un-doped TiO2/Ti electrodes. The UV–vis DRS showed that the TiO2/Ti doped Te functionally decreases bandgap to 3.0 eV. The results showed that the photocurrent of reactive orange 84 was observed in the concentration range (1-5 μM), with a linear response between concentration and charge.
Industrial Waste Treatment using TiO2 Modified Clay as Adsorbent-Photocatalyst: Mini Review Kurnia Sri Yunita; Andika Mayansara; Rosmini Rosmini; La Ode Agus Salim
International Journal of Science Technology and Health Vol 1 No 1 (2023): Science Technology and Health
Publisher : LPPM ISTEK 'Aisyiyah Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Every year, the global industrial sector continues to experience rapid development, contributing to economic growth rates, especially in the textile industry. This has led to an increase in the amount of textile dye waste being distributed into the environment. One solution to address the issue of textile dye waste is by modifying clay with TiO2 (TiO2/clay) using degradation-adsorption techniques. In recent decades, the modification of clay minerals has become crucial due to their diverse potential as catalysts, adsorption media, and ion exchange agents. TiO2 serves as a medium for ion insertion (intercalation), which enhances pore and surface area. This study explains the properties of clay, the photocatalytic properties of TiO2, surface characteristics, and the photocatalytic/adsorption method on the TiO2/clay composite. Various types of minerals have been inserted, such as rectorite, montmorillonite, kaolinite, vermiculite, and halloysite, between the layers of clay minerals through different methods and applications. The performance enhancement of tested dyes is carried out by doping metals into the photocatalytic/adsorption material
Pemberdayaan Masyarakat Pesisir Pomalaa dalam Pengolahan Air Bersih berbasis Smart Filter Alam untuk Menyongsong Kemandirian Kesehatan: Pemberdayaan Masyarakat dalam Pengolahan Air Bersih berbasis Smart Filter Alam Faizal Mustapa; Jusniati Jusniati; La Ode Agus Salim
Jurnal Mandala Pengabdian Masyarakat Vol. 4 No. 2 (2023): Jurnal Mandala Pengabdian Masyarakat
Publisher : Progran Studi Farmasi STIKES Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35311/jmpm.v4i2.292

Abstract

Teknologi Smart Filter Alam (SFA) berbasis tempurung dan sabut kelapa sebagai sistem pengolahan air telah disosialisasikan dan dipraktekkan pada masyarakat Desa Totobo, yang terletak di Kecamatan Pomalaa, Kabupaten Kolaka, Sulawesi Tenggara. Penentuan Desa Totobo sebagai lokasi pengabdian ini dipilih berdasarkan permasalahan nyata terkait keterbatasan pasokan air bersih serta risiko pencemaran air yang signifikan, yang berdampak langsung pada kualitas hidup sehari-hari penduduk setempat. Tujuan utama dari pengabdian ini adalah untuk mengedukasi penduduk Desa Totobo tentang teknologi SFA yang berfokus pada penggunaan tempurung dan sabut kelapa sebagai bahan utamanya, yang merupakan alternatif yang ramah lingkungan untuk mengatasi permasalahan air tercemar. Metode pelaksanaan kegiatan mencakup sosialisasi mengenai teknologi SFA serta pelatihan berkelanjutan dalam penerapannya. Evaluasi keberhasilan proyek dilakukan melalui sesi tanya jawab, yang menghasilkan tingkat kepuasan yang sangat positif dari peserta. Hasil tersebut mencerminkan penerimaan materi yang baik, pemahaman yang kuat terhadap konsep yang diajarkan, serta perkembangan keterampilan dalam pembuatan teknologi SFA oleh masyarakat Desa Totobo.
Photocatalytic Degradation of Lignin using TiO2 from Ilmenite Prepared by Microwave Method Irwan Irwan; Andri Jahir Maindi; Muh Edihar; Muhammad Nurdin; La Ode Agus Salim
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): Asian Journal of Environmental Research
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 La Ode Agus Salim; Irwan Irwan
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): Asian Journal of Environmental Research
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 Muh Edihar; Muhammad Aryo Zulkarnaen; La Ode Agus Salim
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): Asian Journal of Environmental Research
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.
Co-Authors Andika Mayansara Saboli Andri Jahir Maindi Annisa Indriani Catherina M. Bijang Faizal Mustapa Irwan Irwan Irwan Irwan Jusniati Jusniati Kurnia Sri Yunita Kurniawan Kurniawan Maulidiyah Maulidiyah Muh. Edihar Muhammad Aryo Zulkarnaen Muhammad Nurdin Rosmini Rosmini Zul Arham