PrefaceChapter 1: Physical Research of Materials for Electronics and ElectrotechnicsInvestigating the Probability of the Charging Transition Rate in Cu Contact to P6 System DevicesMixed Spin Ising Ferrimagnetic System in the Oguchi ApproximationStudy and Evaluation of Charge Current Rate for Fe/ZnPc Sensitizers Molecule Interface SystemChapter 2: Materials and Methods of Pollutants Detection and DegradationFood Safety Level Assessment on Heavy Metals (As, Cd, Li, Ni, Pb, Ti) Concentration in Tilapia Fish (Oreochromis sp.) from Sleman and Bantul YogyakartaMitigation of Ammonia Gas Emissions from Chicken Layer Excreta Using Indigenous Microorganisms Produced by Fermented Tobacco LeavesPrediction of Rhodamine B Dye Content in Chilies Paste Using VIS-NIR SpectroscopySynthesis of Dialdehyde Carboxymethyl Cellulose-Crosslinked-Chitosan for Preconcentration of Cu(II) Using Batch MethodOptimization of Silicon Selective Leaching with Glycerol Using Response Surface Methodology (RSM)Effect of Calcination Temperature on the Preparation of Mixed Oxide SnO2/CeO2/TiO2 to Increase the Photodegradation Activity of Methylene Blue under Visible LightA Bifunctional Chitosan/Alginate Nanoparticles (CANPs) for Trace Metals Adsorption as well as Antibacterial Polyelectrolyte Complex (PEC) MaterialsThe Adsorption Characteristics of Heavy Metals in Acid Mine Drainage from Abandoned Tin Mines on Lightweight Expanded Clay Aggregate (LECA)The Effectiveness of Coffee Waste Ground by Simple Washing on the Adsorption of Methylene BlueEffective Removal of Methylene Blue Dye from Bimetallic Organic Framework M/Fe-MOF (M=Ni, Co)Efficient Visible-Light-Induced Photocatalytic Removal of Salicylic Acid Using Sulfur-Doped Fe3O4/SiO2/TiO2 CompositeSynthesis of Magnetically Separable Fe3O4/TiO2-Ag with Enhanced Photocatalytic Performance under Visible Light for Degradation of Metanil YellowSynthesis of Amikacin Modified Carbon Dots-Doped Nitrogen and Zinc for Escherichia coli DetectionKinetic and Isotherm Study on the Adsorption of Crystal Violet in Water Using Low-Cost Adsorbent of Coal Fly AshIsotherm and Kinetic Adsorption of Malachite Green Using Low-Cost Adsorbent of Coal Fly AshAntibiotic Removal Capacity of Coconut Activated Carbon from Microwave-Assisted Synthesis