Azwar Manaf
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View article: Electrochemical and computational investigation of Tinospora cordifolia fractions as a novel corrosion inhibitor for carbon steel in seawater medium
Electrochemical and computational investigation of Tinospora cordifolia fractions as a novel corrosion inhibitor for carbon steel in seawater medium Open
This study employed electrochemical techniques and computational analyses to evaluate the efficacy of Tinospora cordifolia fraction (TCF) as an anticorrosion agent for carbon steel in a seawater medium. Electrochemical methods were employe…
View article: Optimized Carbonization and Kinetic Analysis of Palm Kernel Shell Porous Carbon for Heavy Metal Adsorption
Optimized Carbonization and Kinetic Analysis of Palm Kernel Shell Porous Carbon for Heavy Metal Adsorption Open
This study explores the use of porous carbon derived from palm kernel shells to adsorb lead ions (Pb2+) from water. Porous carbon was produced by carbonizing palm kernel shells at different temperatures (400, 600, and 800 °C) and was evalu…
View article: ECO FRIENDLY CITRIC ACID-ASSISTED SOL-GEL SYNTHESIS OF HIGH-PURITY NANO SILICA FROM DIENG GEOTHERMAL SLAG: CHARACTERIZATION AND OPTIMIZATION METHOD
ECO FRIENDLY CITRIC ACID-ASSISTED SOL-GEL SYNTHESIS OF HIGH-PURITY NANO SILICA FROM DIENG GEOTHERMAL SLAG: CHARACTERIZATION AND OPTIMIZATION METHOD Open
Geothermal slag is a by-product of the geothermal power generation process, but its added value is minimal. With a silica content of up to 70%, geothermal slag has potential as a secondary silicon source for battery silicon anode precursor…
View article: Rare Earth Elements Adsorption Using Electrospun Nanofiber of Blended Nylon 6-6 and Choline Ionic Liquid from Aqueous Solution
Rare Earth Elements Adsorption Using Electrospun Nanofiber of Blended Nylon 6-6 and Choline Ionic Liquid from Aqueous Solution Open
Rare earth elements are among the critical components that are essential to many sectors, especially the production of advanced products. These rare earth elements are now heavily dependent upon by large worldwide enterprises. There have b…
View article: Polycarboxylic Acid-Based Deep Eutectic Solvents for Critical Metal Recovery from Lithium-Ion Batteries: Kinetic and Efficiency Analysis
Polycarboxylic Acid-Based Deep Eutectic Solvents for Critical Metal Recovery from Lithium-Ion Batteries: Kinetic and Efficiency Analysis Open
To meet the high demand for lithium-ion batteries (LIBs) and their corresponding challenges, effective and sustainable recycling methods are necessary. This research explores the use of deep eutectic solvents (DES) based on polycarboxylic …
View article: Evaluation of Sealing Strength in Multilayer LLDPE Packaging for Impact-Resistant Rice Pouches
Evaluation of Sealing Strength in Multilayer LLDPE Packaging for Impact-Resistant Rice Pouches Open
In this study, we evaluate the mechanical integrity, thermal stability, and impact resilience of three different laminated polymer materials—PA/LLDPE, MDO-PE/LLDPE, and BOPE/LLDPE—to assess their suitability for rice packaging applications…
View article: Investigating the potential of deep eutectic solvents for metal recovery from spent lithium-ion batteries
Investigating the potential of deep eutectic solvents for metal recovery from spent lithium-ion batteries Open
The development of electric vehicles and portable electronic devices has increased the use of lithium-ion batteries, resulting in increased battery waste. Currently, efficient, and environmentally friendly lithium-ion battery recycling tec…
View article: Recovery of ferronickel by green selective reduction of nickel laterite
Recovery of ferronickel by green selective reduction of nickel laterite Open
The conversion of nickel laterite into ferronickel is commonly done through a high-temperature pyrometallurgical process that utilizes fossil fuels, which leads to environmental emissions. In order to deal with this, a biomass-based select…
View article: Nickel recovery in ferronickel concentrate by green selective reduction of nickel laterite
Nickel recovery in ferronickel concentrate by green selective reduction of nickel laterite Open
Nickel laterite is typically processed into ferronickel through a pyrometallurgical method involving high temperatures and the use of fossil fuels, such as coals or cokes. Unfortunately, this process releases emissions like CO2, SO2, and N…
View article: Understanding magnetic interactions in SrFe<sub>12</sub>O<sub>19</sub>/CoFe<sub>2</sub>O<sub>4</sub> nanocomposites: role of particle structure on exchange spring magnet behaviour
Understanding magnetic interactions in SrFe<sub>12</sub>O<sub>19</sub>/CoFe<sub>2</sub>O<sub>4</sub> nanocomposites: role of particle structure on exchange spring magnet behaviour Open
This study explores the impact of particle structure on the magnetic properties of SrFe 12 O 19 /CoFe 2 O 4 nanocomposites. The investigation focuses on variations in particle sizes of SrFe 12 O 19 (SHF) and CoFe 2 O 4 (COF) with a mass ra…
View article: The Development of Rare Earth Based Permanent Magnets and Its Relation to the Circular Economy
The Development of Rare Earth Based Permanent Magnets and Its Relation to the Circular Economy Open
Permanent magnets are crucial materials for the development of electronics and telecommunications technology. During the early modern era, the development of permanent magnet materials focused on finding new materials to meet maximum energ…
View article: Unveiling green corrosion inhibitor of Aloe vera extracts for API 5L steel in seawater environment
Unveiling green corrosion inhibitor of Aloe vera extracts for API 5L steel in seawater environment Open
This study evaluated Aloe vera extract as a green inhibitor to prevent corrosion in seawater environments. A. vera extract was produced by maceration with methanol–water at room temperature. Electrochemical techniques were used to evaluat…
View article: Investigation of a novel biocide material for biocorrosion in simulated seawater: A case study on Tinospora cordifolia extract
Investigation of a novel biocide material for biocorrosion in simulated seawater: A case study on Tinospora cordifolia extract Open
This case report investigates the preventive effect of Tinospora cordifolia extract on biocorrosion induced by Pseudomonas aeruginosa on mild steel API 5L in the simulated seawater medium. Electrochemical techniques, spectroscopic techniqu…
View article: Characterization and performance evaluation of epoxy-based plastic scintillators for gamma ray detection
Characterization and performance evaluation of epoxy-based plastic scintillators for gamma ray detection Open
This research investigates the fabrication and analysis of plastic scintillators using an epoxy matrix. Plastic scintillators are widely used in radiation detection because of their low cost, ease of fabrication, resistance to moisture, an…
View article: Analyzing Impact Strength Improvement in Polymer Laminates: A Comparative Study of Machine Direction Oriented (MDO)-PE/LLDPE and Polyamide (PA)/LLDPE Structures
Analyzing Impact Strength Improvement in Polymer Laminates: A Comparative Study of Machine Direction Oriented (MDO)-PE/LLDPE and Polyamide (PA)/LLDPE Structures Open
The mechanical strength of 2 film structures, machine-direction-oriented polyethylene (MDO-PE) laminated with linear low-density polyethylene (LLDPE) and polyamide (PA) laminated with LLDPE was evaluated. PA/LLDPE films demonstrated superi…
View article: Preliminary Characterisation of Thermal Upgrading of Nickel from Saprolite via Selective Reduction
Preliminary Characterisation of Thermal Upgrading of Nickel from Saprolite via Selective Reduction Open
The mineralogical properties and distribution of information established in saprolite from Indonesia were investigated using X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy energy dispersion spectroscopy (SE…
View article: Evaluation of Morinda citrifolia extract as sustainable inhibitor for mild steel in saline environment
Evaluation of Morinda citrifolia extract as sustainable inhibitor for mild steel in saline environment Open
In this study, the Morinda citrifolia extract was evaluated as a sustainable inhibitor of mild steel in saline environments. The work aimed to determine the inhibition efficiency of new active material for metal corrosion inhibition. The p…
View article: The Impact of Al<sup>3+</sup> ion substitution on microwave absorption of hexaferrite compound Ba<sub>0.6</sub>Sr<sub>0.4</sub>Fe<sub>12−x</sub>Al<sub>x</sub>O<sub>19</sub> (x = 0.25, 0.50, 0.75, and 1.00)
The Impact of Al<sup>3+</sup> ion substitution on microwave absorption of hexaferrite compound Ba<sub>0.6</sub>Sr<sub>0.4</sub>Fe<sub>12−x</sub>Al<sub>x</sub>O<sub>19</sub> (x = 0.25, 0.50, 0.75, and 1.00) Open
This paper discusses the impact of Al 3+ ion substitution on Fe 3+ ions in the hexaferrite compound Ba 0.6 Sr 0.4 Fe 12−x Al x O 19 on the reflection loss value and bandwidth in absorbing microwaves. Hexaferrite Ba 0.6 Sr 0.4 Fe 12−x Al x …
View article: Synthesis and Characterization of a Polystyrene-based Scintillator for Gamma Detection
Synthesis and Characterization of a Polystyrene-based Scintillator for Gamma Detection Open
This study aimed to create and examine plastic scintillators made from a polystyrene matrix, which are widely used in radiation detection due to their favorable properties such as rapid decay time, low cost, resistance to moisture, and eas…
View article: Enhancing the corrosion inhibition performance of Tinospora cordifolia extract using different fractions of methanol solvent on carbon steel corrosion in a seawater-simulated solution
Enhancing the corrosion inhibition performance of Tinospora cordifolia extract using different fractions of methanol solvent on carbon steel corrosion in a seawater-simulated solution Open
The present study investigates the inhibition potential of Tinospora cordifolia extract in combination with different methanol solvents on the corrosion of carbon steel in artificial seawater environments. Potentiodynamic polarization (PDP…
View article: Analysis of the Antibacterial Activity and the Total Phenolic and Flavonoid Contents of the Moringa oleifera Leaf Extract as an Antimicrobial Agent against Pseudomonas aeruginosa
Analysis of the Antibacterial Activity and the Total Phenolic and Flavonoid Contents of the Moringa oleifera Leaf Extract as an Antimicrobial Agent against Pseudomonas aeruginosa Open
Pseudomonas aeruginosa is a bacterium that causes metal deterioration by forming biofilms on metal surfaces. This work was carried out to analyze the antibacterial activity and the phenolic and flavonoid contents of the Moringa oleifera le…
View article: Manufacturing of the stainless-steel sheathed magnesium diboride superconductor wire
Manufacturing of the stainless-steel sheathed magnesium diboride superconductor wire Open
The Powder in Tube (PIT) method was utilized to manufacture the MgB2-based monofilament wire. The ground powders of Mg and B were filled in the stainless-steel tube and went through a cold-rolling process. In order to avoid oxidation, the …
View article: Parameter processes and their impact on Tinospora cordifolia stem extracts for antibacterial and antioxidant materials
Parameter processes and their impact on Tinospora cordifolia stem extracts for antibacterial and antioxidant materials Open
This work extracted the Tinospora cordifolia stem for antibacterial and antioxidant materials. The stems of T. cordifolia were extracted by using a simple maceration method. The effect of three independent variables (solvent ratios, temper…
View article: Study of Titanium Dioxide (TiO<sub>2</sub>) Extraction Process from Ilmenite Banten
Study of Titanium Dioxide (TiO<sub>2</sub>) Extraction Process from Ilmenite Banten Open
Ilmenite is found in the form of iron sand with reserves of 927,315,827 tons spread across several regions in Indonesia, including Banten which has seven million tons of iron sand. This mineral can be used as a raw material for making TiO …
View article: Isolation and identification of bioactive compounds from Tinospora cordifolia stem extracts as antibacterial materials in seawater environments
Isolation and identification of bioactive compounds from Tinospora cordifolia stem extracts as antibacterial materials in seawater environments Open
The Tinospora genus is widely utilized because of its numerous bioactive compounds. This work aimed to isolate the bioactive constituents and antibacterial activities of the T. cordifolia plant. Maceration, column chromatography, and thin-…
View article: Composition of tailings after selective reduction of laterite
Composition of tailings after selective reduction of laterite Open
The selective reduction process generates products in the form of concentrates and tailing/by-products. There is high percentage of iron and other elements in the tailings that are not extracted in selective reduction process. Properties o…
View article: Increased Reflection Loss of SrFe<sub>(11.9-x)</sub> In<sub>0.1</sub>Sn<sub>x/2</sub>Zn<sub>x/2</sub>O<sub>19</sub> (x = 0.0; 0.10; 0.35 and 0.50): A Microwave Absorber Induced by Reduced Coercivity
Increased Reflection Loss of SrFe<sub>(11.9-x)</sub> In<sub>0.1</sub>Sn<sub>x/2</sub>Zn<sub>x/2</sub>O<sub>19</sub> (x = 0.0; 0.10; 0.35 and 0.50): A Microwave Absorber Induced by Reduced Coercivity Open
In this study, an increase in the reflection loss (RL) value for SrFe (11.9-x) In 0.1 Sn x/2 Zn x/2 O 19 samples (x = 0; 0.10; 0.35 and 0.50) is reported. The X-ray diffraction (XRD) pattern of all samples confirmed that the SrFe (11.9-x) …
View article: Development and Prospects of Recycled Packaging in Circular Economy System: A Review
Development and Prospects of Recycled Packaging in Circular Economy System: A Review Open
This study focuses on the concept of the circular economy within industrial systems and its relevance to industry, practitioners, scientists, and the government.The review examines different models of the circular economy, particularly tho…
View article: Development of laterite ore processing and its applications
Development of laterite ore processing and its applications Open
Nickel ore is found in two types sulfide and laterite. The sulfide is a nickel ore that has high nickel content and low reserves of natural resources than of the zinc laterite. In contrast, the laterite is a rock mineral that contains the …
View article: The Potential of Tinospora cordifolia Extracts as Antibacterial Material against Pseudomonas aeruginosa
The Potential of Tinospora cordifolia Extracts as Antibacterial Material against Pseudomonas aeruginosa Open
Mitigation and control of bacterial corrosion must have been prioritized for failure anticipation by corrosion associated with microorganisms. Using synthetic inhibitor for material protection from corrosion have problems because it is not…