A5016105696- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Electrochemical sensors and biosensors
- Graphene and Nanomaterials Applications
- Water Quality Monitoring and Analysis
- Conducting polymers and applications
- Transition Metal Oxide Nanomaterials
- Quantum Dots Synthesis And Properties
- Graphene research and applications
- Mesoporous Materials and Catalysis
- Chalcogenide Semiconductor Thin Films
- Analytical Chemistry and Sensors
- Copper-based nanomaterials and applications
- Nanomaterials for catalytic reactions
- Pigment Synthesis and Properties
- Supercapacitor Materials and Fabrication
- Advanced Nanomaterials in Catalysis
- Recycling and Waste Management Techniques
- Metal Extraction and Bioleaching
- Nanoparticles: synthesis and applications
- Electrochemical Analysis and Applications
Sebelas Maret University
2016-2025
Anthocyanins are naturally occurring pigments of red and purple. Red anthocyanin provide a strong sharp widely applied in various industries such as food coloring or drink. isolated by maceration, extraction thin layer chromatography (TLC). The extract has been obtained from the initial stages maceration then separated into several fractions to isolate colored dark red. Identification chemical compounds with TLC (Thin Layer Chromatography) is able distinguish fraction produced. FTIR (Fourier...
Graphene oxide (GO) has been synthesized via modified Hummer's method with graphite powder as a starting material. The reduced graphene (rGO) was prepared by GO precursor. Synthesis of rGO-NS performed hydrothermal using dopant thiourea nitrogen (N) and sulphur (S) donors the ratio GO: = 1:10, 1:15, 1:20 (w/w), respectively. Characterization Fourier Transform Infra-Red (FTIR) spectroscopy shows several peaks that have an agreement −OH, C=O, C=C, C-OH, C-O functional groups for absorption CO...
Ecorilife.id merupakan salah satu UMKM yang bergerak pada bidang produksi ecoprint. Akan tetapi, terdapat permasalahan prioritas dari mitra, yaitu kualitas warna kain ecoprint tidak stabil, meliputi pewarnaan dasar gelap dan terang, pengaruh teknis pewarnaan, penggunaan bahan-bahan pewarna alam. Solusi diharapkan mampu menyelesaikan tersebut dilakukan melalui pendampingan proses Ecorilife.id. Kegiatan dengan melakukan optimasi tahap mordanting menggunaan tawas (Al2(SO4)3), natrium asetat...
Composite rGO/ZnO NRs (NRs = nanorods) have been a photoanode material in DSSC solar cells. In this study, ZnO were synthesized using hydrothermal method with the addition of hexamethyl tetraamine (HMTA). The was then composited graphene oxide (GO) by modified hummers method. performance NR composite various compositions ZnO: GO ratio (w/w) as has investigated. results show that is capable decreasing band gap energy. shows its DSSCs. ZnO:GO 1:2 showed better than other composite.
Study of color stability anthocyanin from extract mangosteen pericarp (Garcinia mangostana L.) with co-pigmentation method has been conducted. Malic acid and ascorbic used as a co-pigment to stabilize the structure through formation new binding between anthocyanin. Anthocyanin were isolated by several steps, including maceration, extraction, Thin Layer Chromatography (TLC). The separation was conducted TLC, while identification functional groups those compound, FTIR (Fourier Transform...
ZnO nanoparticles were successfully synthesized by sol-gel method. According to unique structural and optical properties of semiconductor material, there are many potential important applications based on that including as an anti-reflection coating (ARC) in solar cells. Antireflective coatings made top improve the coating. TiO2 layer have been coated a nanoparticle layer. was characterized X-ray diffraction (XRD), Scanning electron Microscopy (SEM) UV-Vis spectroscopy. annealed at...
Abstract The rGO has been synthesized successfully by combination of modified Hummers method and thermal reduction. First, the GO was (chemical exfoliation) graphite flake. This reaction obtained oxide (GrO) as intermediate material. materials were characterized FTIR, XRD, TG/DTA SEM. FTIR data shows functional group graphite, GrO, rGO, while XRD crystal parameter them. used to study formation at various temperature (200, 300 400 °C). had carbonyl, carboxyl, hydroxyl alkene groups 2 theta...
Recently, the uses of dyes are increasingly widespread especially in foods and beverages as food colors to attract consumers. The dye that currently attracts is indigo. Indigo a group carbonyl compounds, one oldest known terms natural blue derived from Indigofera tinctoria plant. use indigo intended reduce synthetic carcinogenic impact. method used this study includes analysis using UV-Vis spectrophotometry FTIR analysis. Based on Spectrophotometer results with various concentrations 0.002...
This research studied the impact of silanized clay modification on performance and antifouling Poly(vinylidene fluoride) (PVDF) membrane toward humic acid methylene blue filtration. Clay was carried out by using 3-aminopropyltriethoxysilane (APS) to produce modified (Clay-APS). Hybrid membranes were prepared phase inversion for characterized measuring surface hydrophilicity, water flux, rejection, properties. Clay-APS increased hybrid as indicated increasing β fraction decreasing contact...
Al doped ZnO (AZO) nanoparticles have been successfully synthesized by the simple sol-gel method. The starting materials of were Zn(CH3COO)2·2H2O and Al(OH)(CH3COO)2. Preparation AZO using polyethylene glycol as a surfactant. solution precursors was stirred at 60 °C for 2 hour in conditions contents are 0%, 2%, 3% 4% (g/mL), respectivelly. In last step reaction, gelation occurred from to sol gel. gel then dried following annealing process crystalization. By this method, produced....
The method of Ti/TiO2-NiO photoelectrode prepared by using sol-gel continued calcination process was introduced. TiO2-NiO film observed with XRD and TEM. anatase-rutile TiO2 mainly on the composite surface electrode. In addition to NiO, also formed NiTiO3 that increased increasing temperature. Photoelectrocatalytic degradation Rhodamine B (RB) this electrode investigated, anodic potential pH were optimized. RB investigated under different conditions, it showed photoelectrocatalytic could...
ZnOmaterial has unique electrical and optical properties that many important applications, including as an anti-reflection coating in dye sensitized solar cells. Flat anti-reflective coatings (ARC) made of ZnO on top to improve the coating. In this study, nanoparticle were coated with TiO2 nanolayers by a simple wet chemical route. nanorods was synthesized two step i.e. (1) base hydrolysis polymerization (2) layer. The prepared characterized X-ray diffraction (XRD), Reflectance spectroscopy,...
The nanocomposites of GO/ZnO nanodrums were successfully synthesized and applied for photocatalytic degradation methylene blue. GO was by Hummer method ZnO hydrothermal method. Characterization performed using XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), UV-Vis spectrophotometer, FTIR (Fourier Transform Infra-Red). mixed with various composition. variation 1: 0; 1, 2 (w/w) in distilled water. This composite then carried out photocatalyst process Methylene Blue. showed that...