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Hanif Amrulloh
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Journal of Multidisciplinary Applied Natural Science
Published by Pandawa Institute
ISSN : -     EISSN : 27743047     DOI : 10.47352/jmans
Core Subject : Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics
Journal of Multidisciplinary Applied Natural Science (abbreviated as J. Multidiscip. Appl. Nat. Sci.) is a double-blind peer-reviewed journal for multidisciplinary research activity on natural sciences and their application on daily life. This journal aims to make significant contributions to applied research and knowledge across the globe through the publication of original, high-quality research articles in the following fields: 1) biology and environmental science 2) chemistry and material sciences 3) physical sciences and 4) mathematical sciences. The J. Multidiscip. Appl. Nat. Sci. is an open-access journal containing original research articles, review articles, and short communications in the areas related to applied natural science. The J. Multidiscip. Appl. Nat. Sci. publishes 2 issues in a year on January (first issue) and July (second issue). This journal has adopted a double-blind reviewing policy whereby both the referees and author(s) remain anonymous throughout the process.
Arjuna Subject : Umum - Umum
Articles 133 Documents
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Alginate as A Natural Coagulant-Aid: Advances, Challenges, and Applications Kristianto, Hans; Prasetyo, Susiana; Sugih, Asaf Kleopas
Journal of Multidisciplinary Applied Natural Science Articles in Press
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.287

Abstract

Coagulation is a critical step in water and wastewater treatments that is essential for the removal of suspended solids, organic matters, and colloidal particles. Conventional metal-based coagulants such as aluminium sulphate, ferric chloride, and polyaluminium chloride and synthetic polymer such as polyacrylamide are widely used due to their proven efficiency. However, concerns over their environmental impact, including the generation of non-biodegradable sludge, potential health risks, and negative impact on the water ecosystem, have driven the search for alternative, eco-friendly coagulants. Natural coagulants derived from plants, animals, or microorganisms have emerged as promising alternatives, offering advantages like biodegradability, non-toxicity, and lower sludge production. Among these, polysaccharide-based coagulants such as alginate, a biopolymer sourced from brown seaweed and bacteria, have gained significant attention. Alginate's biodegradability, non-toxicity, low cost, and versatile gelation properties make it a potential substitute for synthetic coagulants. This review focuses on the use of alginate as a coagulant-aid, providing an overview of its sources, characteristics, coagulation mechanisms, and variables that affect the coagulation performance. The review also highlights the benefits, challenges, and future research directions for improving the efficiency and scalability of alginate in sustainable water/wastewater treatment processes.
Optimization of a Mixture of Curcuma Dye Mixture with SiO₂ (Rice Husk Waste) to the Energy Efficiency of TiO₂ -based Solar Cells Subagyo, Tulus; Widhiyanuriyawan, Denny; Widodo, Agung Sugeng; Wardana, I Nyoman Gede
Journal of Multidisciplinary Applied Natural Science Articles in Press
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.288

Abstract

Global energy challenges and environmental problems encourage the search for sustainable energy solutions, with TiO₂-based solar cells that are still limited to its efficiency due to low light absorption and charge recombination. This study aims to examine the synergistic effect of curcuma and SiO₂ dye from rice husk waste in improving the energy efficiency of TiO₂ solar cells. The research methodology involves the fabrication of sensitive solar cells with different layer compositions: TiO₂ only, TiO₂ with one layer of SiO₂ (1L-SiO₂), two layers (2L-SiO₂), and three layers (3L-SiO₂). The TiO₂ photoanode is prepared using the screen printing method, followed by loading coloring through immersion in the curcuma coloring solution. The performance of solar cells is evaluated using the current voltage measurement (I-V) and electrochemical impedance spectroscopy (EIS) to analyze efficiency, charge transportation, and recombination processes. The results show that the addition of SiO₂ increases the efficiency of solar cells, with 1L-SiO₂ producing the highest compilation of short circuit (JSC) 0.37 mA/cm², showing an increase in cargo transportation. However, 1L-SiO₂ shows a decrease in performance due to excessive thickness, which leads to an increase in charge recombination and internal resistance. Impedance analysis confirms that 1L-SiO₂ optimizes cargo transportation but also increases recombination resistance, which affects overall efficiency. Adding SiO₂ from rice husk waste increases the efficiency of TiO₂-based solar cells, with curcuma coloring increases light absorption and charge transfer. However, excessive SiO₂ layers reduce performance due to higher recombination and resistance. Further research is needed to optimize the thickness of the layer and dye stability.
Preparation and Characterization of Cellulose-clay Composite using Indonesian Natural Bentonite for Cr(VI) Adsorption Julinawati, Julinawati; Nadia, Eka; Mustafa, Irfan; Suryati, Suryati
Journal of Multidisciplinary Applied Natural Science Articles in Press
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.289

Abstract

Contamination of Cr(VI) is of global concern, whereas the innovation in wastewater treatment is required. Combination of bentonite and cellulose could produce an effective adsorbent to treat Cr(VI)-containing wastewater. The aim of this study was to investigate the use of composite bentonite/cellulose (B/Cell) to remove Cr(VI) in the aqueous media, in which the bentonite was collected from local sources. The Na-bentonite was firstly prepared before proceeding to cellulose embedment. The resultant B/Cell was characterized for its functional groups, morphology, and crystallinity. The Cr(VI) adsorption capacity and removal efficiency were determined based on batch adsorption. Our findings revealed that the B/Cell composite with a 4:1 bentonite-to-cellulose mass ratio exhibited the highest removal efficiency (85.68%) among tested formulations. Fourier-transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction analyses confirmed the successful integration of cellulose and structural modification of bentonite. Optimal adsorption was achieved at pH 3, 180-min contact time, and 10 g/L adsorbent dosage. Isotherm modeling showed excellent fits for Sips (R2 = 0.9992) model, with maximum adsorption capacity reaching 192.56 mg/g. Kinetic analysis indicated pseudo-second-order kinetics (R2 = 0.959, qe = 1.018 mg/g), suggesting a chemisorption mechanism. These results highlight the potential of the B/Cell composite as an efficient and low-cost adsorbent for Cr(VI) removal from aqueous environments.

Page 14 of 14 | Total Record : 133

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