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View article: Enhancing photocatalytic activity of Fe2O3/TiO2 with gelatin: A fuzzy logic analysis of mesoporosity and iron loading
Enhancing photocatalytic activity of Fe2O3/TiO2 with gelatin: A fuzzy logic analysis of mesoporosity and iron loading Open
The synthesis of mesoporous Fe2O3/TiO2 heterostructures using a P123-Gelatin hybrid template has been investigated for enhanced photocatalytic degradation of methylene blue under visible light. The study focused on the effect of gelatin co…
Cultivation of Antioxidant-Producing Endophytic Fungus in <i>Rhizophora apiculata</i> Mangrove Plants Open
West Sumatra is known as one of the largest areas of mangrove forests in Indonesia, dominated by Rhizophora. Therefore, there will be huge opportunities to discover new types or strains of endophytes and antioxidant compounds, which play a…
Exploration and Characterization of Thermophilic Bacteria from the Kerinci-Jambi Geothermal Source for Alcohol Production Open
Alcohol produced by thermophilic bacteria is renewable and a safe fuel because it is mainly based on microbial fermentation. This research needs to be done to find out the potential alcohol production of thermophilic bacteria because have …
Separation of Kaolinite from Clay Minerals and Its Catalytic Activity in Transesterification Reactions Open
Kaolinite is a type of clay mineral that has the potential to be used as a heterogeneous catalyst in transesterification reactions. However, natural clay still contains a mixture of minerals that occur together. Therefore, as an effort to …
Pelatihan Praktikum Kimia Sederhana di SMAN 16 Padang Open
Chemistry is one of the subjects taught in State Senior High Schools (SMAN), especially in Natural Sciences (IPA). The problem with chemistry subjects is that it is difficult to practice in the laboratory because laboratory facilities such…
Biosynthesis of ZnO Nanoparticles Using Spirulina platensis Based on Calcination Temperature Changes and Its Antioxidant Activity Open
The effect of different calcination temperatures on molecular structure, morphology, and antioxidant activity was investigated for Zinc Oxide nanoparticles synthesized using the sol-gel method and the capping agent Spirulina platensis. The…
MODIFICATION NANO-SIZE OF ZINC OXIDE (ZnO-NS) WITH POLYETHYLENE GLYCOL AND APPLICATION AS ANTIMICROBIAL Open
Sol-gel is a simple method used to synthesize nano-size ZnO (ZnO-NS) in many applications. It acts as an antimicrobial agent for Escherichia coli and Aspergillus niger infections. The nano-size and patterned nanorods structure of ZnO enhan…
Evaluation of Lipid Profile and Liver Function After Administration of Scenedesmus dimorphus in Obese Mice Open
Obesity is a major public health problem in developing countries and is a significant risk factor for metabolic disorders. Microalgae Scenedesmus dimorphus (S. dimorphus) contains bioactive compounds such as pigment function as antioxidant…
ANTIBACTERIAL PROPERTIES AND UV- PROTECTION OF COTTON FABRIC USING NANOHYBRID MULTILAYER ZnOSiO2/CHITOSAN AND DODECYLTRIETOXYSILANE (DTS) Open
This study aims to conduct the synthesis and characterization of nanohybrid multilayer ZnO-SiO2/Chitosan (NHMZnO-SiO2/Chitosan) using SEM and TEM to show the rod-shape morphology. Furthermore, the compound is used as a textile fiber coatin…
Biosynthesis of Zinc Oxide (ZnO) Using Culture Biomass of Aspergillus Niger :The Influence of pH On Textile Morphology And Antimicrobial Activity Open
The biosynthesis of zinc oxide (ZnO) is performed through enzymatic mechanisms, by controlling the particle size and morphology of the compound using the sol-gel method. Furthermore, this method utilizes stabilizer obtained from the cell b…
Biosynthesis of Zinc Oxide (ZnO) Using Culture Biomass of Aspergillus Niger : The Influence of pH On Textile Morphology And Antimicrobial Activity Open
The biosynthesis of zinc oxide (ZnO) is performed through enzymatic mechanisms, by controlling the particle size and morphology of the compound using the sol-gel method. Furthermore, this method utilizes stabilizer obtained from the cell b…
Optimization of Agricultural Waste Substrate as an Alternative Medium for Xylan in Producing Xylanase Enzymes by Thermophilic Bacteria Open
Xylanase enzyme is a thermostable enzyme produced by thermophilic bacteria which in this study used Aneurinibacillus thermoaerophilus SSA2 isolates. Xylanase enzyme is able to hydrolyze xylan into xylose and xylooligosaccharides. The use o…
HIBRID MULTILAYER OF ZnO-SiO2/CHITOSAN NANORODS BY POLY(DIALLYLDIMETHYLAMMONIUM CHLORIDE) (PDDA) AND POLY(SODIUM 4-STYRENESULFONATE) (PSS) Open
The core-shell synthesis of SiO2 (shell) and ZnO (core) carried out in a system, involves the use of Poly(diallyldimethylammonium chloride) (PDDA) and Poly(sodium 4-styrenesulfonate) (PSS) compounds as a crosslinker.Also, ZnO-SiO2/Chitosan…
Synthesis of Graphene Oxide Enriched Natural Kaolinite Clay and Its Application For Biodiesel Production Open
A heterogeneous catalyst is one type of catalyst which is very effective for biodiesel production; thus, in this study, a novel heterogeneous bifunctional catalyst was prepared by kaolinite clay obtained from Padang of West Sumatera and im…
GROWTH CONTROL OF ZnO-TiO2/CHITOSAN NANOROD ON COTTON TEXTILE FIBER BASED ON DIFFERENT CHLORO ACETIC MOLAR COMPOSITION AS CROSS LINKER Open
The objective of this research was to synthesize ZnO-TiO 2 /chitosan patterned nanorods with the molar composition of Zn and Ti at 3: 1 and pH of 13.0 using the Zinc Nitrate precursor as a source of ZnO and Titanium Iso Propoxide as doped …
Potential of Xylanase Thermophilic Bacteria in the Pulp Biobleaching Process Open
Xylanase enzyme is an extracellular enzyme that has the ability to hydrolyze xylan to xylose.Xylanase can be produced by thermophilic bacteria and is a natural xylanase that is active and stable at high temperatures and alkaline pH, so it …
Characterization extrinsic factors of immobilized cells thermoxilanolytic bacteria in producing xylanase Open
Enzyme is one of important commodity in industrial world. The majority of industrial enzymes are produced by microorganisms through fermentation. The use of enzymes is largely as a biocatalyst in chemical transformations. Currently there a…
Natural Zeolits and Its Modifications with Protons and Copper As the Catalyst for Esterification of Ethanol with Acetic Acid Open
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Optical Fiber Polymer Sensor System with TiO2-SiO2 Cladding for Measuring Humidity Open
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Hexamethyldisiloxane‐modified ZnO‐SiO<sub>2</sub>‐coated superhydrophobic textiles for antibacterial application Open
A superhydrophobic cotton textile with high antibacterial properties has been fabricated. The cotton textile was coated through the in situ growth of ZnO‐SiO 2 nanoparticles in presence of chitosan as the template agent via a hydrothermal …
The Function of Cross Linker Carboxylic Acid for TiO2/Chitosan/SiO2 Coated as Self Cleaning Fabrics Open
The chemical compound TiO2/Chitosan/SiO2 is a photocatalyst with a self- cleaning capability against dye contaminations. Morphologically, it has an anatase structure with 13.1 nm of crystallite size, spherical shape, and Eg = 3.209 eV as c…
The Thermophilic Bacterial Growth Curve Open
Thermophilic bacteria are bacteria that can produce thermostable enzymes and used in various industries. Thermostable enzymes that can be produced by thermophilic microorganisms one of them is xylanase enzyme. Xylanase produced by microbes…
Screening of Thermophilic Bacteria Produce Xylanase from<i>Sapan Sungai Aro</i>Hot Spring South Solok Open
xylanase is one of the enzymes with great prospects as hemicellulose hydrolyzing enzyme. Global annual market demand for this enzyme reach US $ 200 million. This enzyme catalyzes the xylan (hemicellulose) reactions breaking into xilooligos…
The Diversity of the Alkaline Protease Producers, Thermophilic Obligate Bacillus spp., from Sungai Tutung Hot Spring, Kerinci, Jambi, Indonesia Open
This study aimed to identify the diversity of the alkali protease producers, thermophilic obligate Bacillus spp., from Sungai Tutung Hot Spring in Kerinci, Jambi, Indonesia. The use of modified methods in exploring biodiversity from an ext…
Screening of Endophyte Piper betle Bacteria from the Forests of HPPB University Andalas as Antibiotics Producer Open
Today livelihood exploration of endophytic microorganisms as a new source of antibiotics is very intensive, especially from medicinal plants. Piper betle, a green betel plant, is a medicinal plant. So that bacterial isolates from Piper bet…
Enhancement of Antibacterial Capability of Cotton Textiles Coated with TiO<sub>2</sub>–SiO<sub>2</sub>/Chitosan Using Hydrophobization Open
Since textiles have a porous and hydrophilic structure, they are ideal substrates for the settlement and growth of pathogenic bacteria. Therefore, fabrication of hydrophobic textiles to reduce their humidity has the potential to inhibit th…
SELF-CLEANING TiO2-SiO2 CLUSTERS ON COTTON TEXTILE PREPARED BY DIP-SPIN COATING PROCESS Open
Titanium-silica (TiO2-SiO2), a type of semiconductor metal oxide cluster compound, has been widely used as oxidative catalysts and dye agents. In this research, TiO2-SiO2 on cotton textile has been utilized as self-cleaning agents by cross…