Harianingsih Harianingsih
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View article: Enhanced photoelectrocatalysis degradation of batik wastewater using Nitrogen-Doped Titanium Dioxide (TiO₂)
Enhanced photoelectrocatalysis degradation of batik wastewater using Nitrogen-Doped Titanium Dioxide (TiO₂) Open
Batik is a significant textile industry in Indonesia, but it produces liquid waste containing azo dyes that are toxic and can pollute the environment. One approach to mitigate the impact of this waste is through TiO₂ photoelectrocatalysis.…
View article: Plasma electrolysis as a sustainable strategy for Remazol Red RB-133 degradation in azo dye wastewater
Plasma electrolysis as a sustainable strategy for Remazol Red RB-133 degradation in azo dye wastewater Open
This study investigates the degradation of Remazol Red RB-133 in batik wastewater using plasma electrolysis, an advanced oxidation process (AOP) that generates highly reactive hydroxyl radicals (●OH). The plasma system, operated at 60 °C w…
View article: Improving The Competence of Batik Craftsmen in Liquid Waste Management Through Electrolysis Technology in Kampung Batik Gedong
Improving The Competence of Batik Craftsmen in Liquid Waste Management Through Electrolysis Technology in Kampung Batik Gedong Open
The Micro, Small, and Medium Enterprises (MSMEs) industry in Kampung Batik Gedong, Semarang, has made a significant contribution to the local economy through the production of Semarang's signature batik. However, this production activity p…
View article: Analysis of reinforcement syntactic foam composite using K-15 microballoons
Analysis of reinforcement syntactic foam composite using K-15 microballoons Open
Syntactic foam composites are used in the aerospace industry, one of which is for buoys because they are lightweight materials that have flexural strength and are resistant to corrosion. This study aims to determine the flexural properties…
View article: Enhancing physicochemical properties of rice straw for reinforcement in composite using combined Ultrasound-Plasma treatment
Enhancing physicochemical properties of rice straw for reinforcement in composite using combined Ultrasound-Plasma treatment Open
Rice straw waste holds considerable potential as a bio-reinforcement material in polymer composites; however, effective utilization requires surface modification to enhance fiber–matrix interfacial adhesion. This study investigates environ…
View article: The Effectiveness of Using Interactive StoryMath Based on Articulate Storyline to Improve Mathematical Literacy in San Carlos Manlewana Elementary School
The Effectiveness of Using Interactive StoryMath Based on Articulate Storyline to Improve Mathematical Literacy in San Carlos Manlewana Elementary School Open
This study aims to examine the effectiveness of using interactive StoryMath media based on Articulate Storyline in improving mathematical literacy of students at San Carlos Manlewana Elementary School. The background of this study is based…
View article: Classroom Environment and Metacognitive Strategies to Support Beginning Reading Skills: A Systematic Literature Review
Classroom Environment and Metacognitive Strategies to Support Beginning Reading Skills: A Systematic Literature Review Open
This study presents a systematic literature review examining the role of the classroom environment in developing beginning reading skills among primary school students. The review covers 20 national and international journal articles publi…
View article: Exploring Trends and Impacts of Problem Based Learning E-Modules in Elementary Science Learning: Systematic Literature Review
Exploring Trends and Impacts of Problem Based Learning E-Modules in Elementary Science Learning: Systematic Literature Review Open
The use of interactive digital learning materials, such as electronic modules based on Problem-Based Learning (PBL), is one way the education sector is adapting to technological advances in the Society 5.0 era. This digital transformation …
View article: Systematic Literature Review: Utilization of Articulate Storyline-based Interactive Learning Media in Primary School Student Learning
Systematic Literature Review: Utilization of Articulate Storyline-based Interactive Learning Media in Primary School Student Learning Open
This study aims to examine the utilization of Articulate Storyline-based interactive learning media in the context of learning in elementary schools through a Systematic Literature Review (SLR) approach. A total of 25 articles from nationa…
View article: Surface Treatment of Wood Polymer Composites from Straw Fiber Using Argon Plasma Jet Injection: Enhancing Adhesion Properties
Surface Treatment of Wood Polymer Composites from Straw Fiber Using Argon Plasma Jet Injection: Enhancing Adhesion Properties Open
The increasing demand for environmentally friendly materials has driven research into biodegradable composites. Straw fiber, an abundant agricultural byproduct, remains underutilized as a filler material in Wood Polymer Composites (WPC). T…
View article: The Effect of Fe2+ Ions Addition on Reactive Oxygen and Nitrogen Species (RONSs) with Controlled Initial pH of Nitrate Synthesis using Plasma Electrolysis Reactor
The Effect of Fe2+ Ions Addition on Reactive Oxygen and Nitrogen Species (RONSs) with Controlled Initial pH of Nitrate Synthesis using Plasma Electrolysis Reactor Open
Plasma electrolysis offers an environmentally friendly approach to nitrate synthesis. This study aimed to investigate the effect of Fe²⁺ ion addition on the formation of reactive oxygen and nitrogen species (RONSs) and nitrate production u…
View article: Hydroxyl Radicals Production in Nitrogen Fixation with Addition of Fe2+ Ions using Plasma Electrolysis
Hydroxyl Radicals Production in Nitrogen Fixation with Addition of Fe2+ Ions using Plasma Electrolysis Open
Nitrogen fixation using the Haber-Bosch process generates carbon dioxide emissions, so environmentally friendly alternative technologies are needed. Plasma electrolysis is recommended as a nitrogen fixation method that produces liquid nitr…
View article: Enhanced Rainwater Purification using Cold Plasma-Activated Hyacinth Adsorbent for Pollutant Reduction
Enhanced Rainwater Purification using Cold Plasma-Activated Hyacinth Adsorbent for Pollutant Reduction Open
This purpose of research for designing a filtration system utilizing hyacinth-based adsorbents to purify rainwater. Hyacinth which an agricultural waste rich in cellulose, possesses natural adsorptive properties. This explores of plasma co…
View article: Hydroxyl Radicals Production in Nitrogen Fixation with Addition of Fe2+ Ions Using Plasma Electrolysis
Hydroxyl Radicals Production in Nitrogen Fixation with Addition of Fe2+ Ions Using Plasma Electrolysis Open
Nitrogen fixation using the Haber-Bosch process generates carbon dioxide emissions, so environmentally friendly alternative technologies are needed. Plasma electrolysis is recommended as a nitrogen fixation method that produces liquid nitr…
View article: CATHODIC AND ANODIC PLASMA ELECTROLYSIS ON NITRATE SYNTHESIS
CATHODIC AND ANODIC PLASMA ELECTROLYSIS ON NITRATE SYNTHESIS Open
Nitrogen fixation using plasma electrolysis is an alternative in the production of liquid nitrate fertilizer which is safe for the environment because it does not produce emissions that pollute the environment. The effectiveness of nitrate…
View article: Operating Parameters Analysis in Alkaline Water Production using Rainwater Electrolysis Methode
Operating Parameters Analysis in Alkaline Water Production using Rainwater Electrolysis Methode Open
Utilization of rainwater is an alternative for the availability of drinking water. The method used is in the form of electrolysis which results in the form of alkaline water. The purpose of this research is to analyze the parameters that a…
View article: The Improvement of Modified Rice Straw Fiber/Polyvinyl Alcohol Thermoplastic Polymer Composite Using Cold Plasma Technology
The Improvement of Modified Rice Straw Fiber/Polyvinyl Alcohol Thermoplastic Polymer Composite Using Cold Plasma Technology Open
The use of natural rice straw as a filler for composite materials has not been optimally utilized; only around 7–16% of the grain is used in the industry. Various developments have been carried out, including its use as a filler or reinfor…
View article: Extraction from Sweet Orange Peel (Citrus Aurantium var Sinesis), Lemongrass (Cymbopogon Citratus), and Jasmine (Jasminum sambac) as Aromatherapy Candles for Empowerment of Home Economics
Extraction from Sweet Orange Peel (Citrus Aurantium var Sinesis), Lemongrass (Cymbopogon Citratus), and Jasmine (Jasminum sambac) as Aromatherapy Candles for Empowerment of Home Economics Open
The COVID-19 pandemic has affected the residents of Ngijo, a sub-district in Gunungpati District, Semarang. This community service activity aims to empower the Ngijo Family Welfare Development (PKK), Gunungpati, Semarang, as a solution for…
View article: The Effect of Air Injection Flowrate on Nitrate Synthesis with The Addition of Fe<sup>2+</sup>Ions Using Plasma Electrolysis
The Effect of Air Injection Flowrate on Nitrate Synthesis with The Addition of Fe<sup>2+</sup>Ions Using Plasma Electrolysis Open
This study aims to determine the effect of air flow rate on nitrate synthesis with the addition of Fe 2+ ions using the plasma electrolysis method. Nitrate synthesis usually uses conventional technology that causes air emissions. So that p…
View article: Carrageenan and bentonite as wet strength agents in the process of making nautical chart paper
Carrageenan and bentonite as wet strength agents in the process of making nautical chart paper Open
Indonesia is a strategic maritime country, especially in terms of trade and economy. The most vital defense is Indonesian waters in the form of shipping by the Indonesian Navy. The support is in the form of nautical chart paper which is st…
View article: Optimization of Rice Bran Oil Bleaching via Carotenoid Adsorption onto Activated Carbon using Response Surface Methodology (RSM)
Optimization of Rice Bran Oil Bleaching via Carotenoid Adsorption onto Activated Carbon using Response Surface Methodology (RSM) Open
Rice bran oil (RBO) is a by-product of rice processing with a good fatty acid profile and high oxidative stability. This study aims to optimize the bleaching stage of the rice bran oil refining process to determine the minimum levels of ca…
View article: The Effect of Air Injection for Formation of Radicals in Liquid Glow Discharge Plasma Electrolysis with K2SO4 Solution
The Effect of Air Injection for Formation of Radicals in Liquid Glow Discharge Plasma Electrolysis with K2SO4 Solution Open
Glow discharge is part of the phenomenon of plasma formation on the electrode side in contact with the electrolyte solution and begins with an electrolysis reaction with direct electric current. In this research, 0.02 M K2SO4 electrolyte w…
View article: Optimization of The Aqueous Enzymatic Extraction (AEE) of Rice Bran Oil With Cellulase Using Response Surface Methodology
Optimization of The Aqueous Enzymatic Extraction (AEE) of Rice Bran Oil With Cellulase Using Response Surface Methodology Open
Rice Bran Oil (RBO) is an oil extracted from rice bran with unsaturated fat content according to World Health Organization (WHO) standards. The enzymatic extraction process of rice bran for oil extraction using cellulase enzymes is conside…
View article: Isothermal Adsorption of Used Cooking Oil Purification Using Avocado Seed Adsorbent
Isothermal Adsorption of Used Cooking Oil Purification Using Avocado Seed Adsorbent Open
High consumption of cooking oil has an impact on the availability of used cooking oil. Used cooking oil can cause pollution if the processing is not sound. So we need an alternative as a solution for handling cooking oil waste. Adsorption …
View article: The Effect of Power on Nitrate Synthesis and The Emission Intensities of Reactive Species Using Anodic Plasma Electrolysis
The Effect of Power on Nitrate Synthesis and The Emission Intensities of Reactive Species Using Anodic Plasma Electrolysis Open
Nitrates are used as fertilizer to fulfill nutrients for plants. Anodic plasma electrolysis technology can be an effective and environmentally friendly solution in nitrogen fixation into nitrate compounds. This research aimed to determine …
View article: Turmeric Extraction (Curcuma Longa L) Using The Reflux Method And Characterization
Turmeric Extraction (Curcuma Longa L) Using The Reflux Method And Characterization Open
Turmeric (Curcuma longa L) is one of the many spices that grow on the Asian continent, especially Southeast and South Asia, which can be utilized to its full potential, especially the antioxidant compounds contained in curcuminoids. This s…
View article: THE CONCENTRATION EFFECT OF K2SO4 ELECTROLITE SOLUTION ON GLOW DISCHARGE PLASMA ELECTROLYSIS
THE CONCENTRATION EFFECT OF K2SO4 ELECTROLITE SOLUTION ON GLOW DISCHARGE PLASMA ELECTROLYSIS Open
Plasma electrolysis is currently an environmentally friendly technology that is used as an alternative to nitrogen fixation, clean water treatment, batik waste degradation and the synthesis of other compounds. The success indicator of plas…
View article: Reaction Pathway of Nitrate and Ammonia Formation in the Plasma Electrolysis Process with Nitrogen and Oxygen Gas Injection
Reaction Pathway of Nitrate and Ammonia Formation in the Plasma Electrolysis Process with Nitrogen and Oxygen Gas Injection Open
The plasma electrolysis method using N 2 and O 2 injection is an effective and environmentally friendly solution for nitrogen fixation into nitrate and ammonia. The reaction pathway, the effect of the N 2 and O 2 gas injection composition …
View article: Adsorption Studies of Rice Husk-Based Silica/Carbon Composite
Adsorption Studies of Rice Husk-Based Silica/Carbon Composite Open
Rice husk as a by-product of the rice milling process is a material that can still be processed to be a product that can be used in various applications. The potential for the commercialization ofrice husks is still hampered by its low eco…