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Asian Journal of Environmental Research
Published by CV. Science Tech Group
ISSN : -     EISSN : 30474930     DOI : -
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Materials Science & Nanotechnology Medicine & Pharmacology
Asian Journal of Environmental Research (AJER) is an International journal with a frequency of 3 (three) times a year, published by the Science Tech Group. Manuscripts submitted must be original Research Articles and Literature Reviews that aim to contribute to and disseminate sustainable updates. Submission of manuscripts requires: the work described has never been published before; not being considered for publication in another journal; all authors approved publication. The publisher will not be legally responsible if there is a compensation claim. AJER is a multi-disciplinary journal publishing high-quality and novel information about anthropogenic issues of global relevance and applicability in a wide range of environmental disciplines, and demonstrating environmental application in the real-world context.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 1 (2024): January-April" : 5 Documents clear
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.
Eco-Friendly Remediation: Tea Leaves and Fibres as Adsorbents for High Cobalt Concentrations; Thermodynamics, Isotherms and Kinetic Studies E. Etim, Emmanuel; Yakubu, Shedrach; C. Onaji, Emmanuel
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.v1i1.9

Abstract

Increasing industrialization has produced huge amounts of liquid effluents, which are a key source of ecological unrest in diverse ecosystems. The high toxicity level of cobalt in surface water has drawn a lot ofattention; hence,a low-cost adsorbent made from leaves and fibres of Camellia sinensis has been developed to remove cobalt from wastewater. The kinetics of the pseudo-first and second-order sorption interaction, as well as the physicochemical parameters of the precursor adsorbent, was investigated. There was a linear relationship between Cobalt uptake and biosorbent dosage under ideal conditions; the optimum dosage was 4 g. Between 10 to 40 minutes of contact time, clearance of cobalt was greater than 90 per cent. The Gibb’s free energy (∆Go) at various temperatures ranges from -9980 to -1020, indicating a spontaneous system, viable for both parts of the precursor adsorbent. The entropy change (∆So) was found to be +31.05 and +35.12 for tea leaves and fibre respectively, implying a highly disordered biosorption interface. The enthalpy (∆Ho) was found to be-8.58 and -10.03 for tea leaves and fibres hence, an exothermic system was suggested by the enthalpy with a second order kinetics. Therefore, Camellia sinensis is a suitable adsorbent for the effective removal of high cobalt concentrations in wastewater.
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.
Photoelectrocatalysis Activity TiO2/Ti electrode doped with N and Ni deposition for Congo Red Degradation Edihar, Muh; Irwan, Irwan; Lidong, Andini
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.v1i1.19

Abstract

The TiO2/Ti electrode was successfully synthesized by combining element N and metal Ni on the TiO2 matrix to degrade the organic compound Congo Red under UV-visible radiation. The aim of this study is to obtain Ni@N-TiO2/Ti electrodes and test their performance in degrading Congo Red dye under UV-visible light radiation. The Ni@N-TiO2/Ti electrode was prepared using the Sol-Gel and electrodeposition methods. The presence of nitrogen in N-TiO2 is determined by FTIR and detected at a wavelength of 1.064 cm1. The analysis of UV-Vis DRS indicates an energy gap of 3.06 eV for N-TiO. XRD analysis revealed anatase crystal structure formation and nickel's presence in the Ni@N-TiO2/Ti electrode detected at 2θ 52.8°. The usage characteristics of linear sweep voltammetry indicate that the TiO2/Ti electrode is active under UV light, while the Ni@N-TiO2/Ti electrode is active under visible light. An electrode activity test using the multi-pulse amperometry method showed that the photoelectrocatalysis performance of Ni@N-TiO2/Ti under visible light radiation reached an ideal degradation rate of 36%.

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