High-efficiency, environment-friendly moss-enriched microbial fuel cell

WOS:000780355600001Microbial fuel cells (MFCs) can be used to produce clean energy from organic wastes. Various biomasses for MFCs can be used as biofuel materials. Moss (Bryophyta) is a source of biomass materials and can be used as an alternative fuel for microbial fuel cells. In this study, moss-enriched MFCs were produced by using moss as a biofuel source and aluminum and silver as an electrode. As a result of the good electrochemical performance of the metal electrodes (aluminum and silver), higher power density than previous studies involving moss was obtained, with the highest power density in this study being 20 mW/m(2). Moreover, in this study, bacterial activity, biofilm formation, soil utilization, pH change, and corrosion were investigated in MFCs and the effects of MFC on power density were discussed. The addition of soil increased the corrosion rate and internal resistance while reducing the power density. As a result of the addition of soil, the power density dropped to 16.13 mW/m(2). The corrosion rate was lower than industrial corrosion. Changes in pH confirmed that organic material dissolved and chemical reactions took place. Scanning electron microscope (SEM)-Energy dispersive spectroscopy (EDS) analyzes showed the presence of Bacillus and Coccus bacteria species on the electrode surfaces. These bacteria were acted as biocatalysts by forming a biofilm on the electrode surfaces

Synthesis and characterization of metallophthalocyanine with morpholine containing Schiff base and determination of their antimicrobial and antioxidant activities

aktas, ayse/0000-0002-7347-4018WOS: 000488798700010In this work, novel metallophthalocyanine compounds (M = Zn, Cu, Co) bearing four 2-methoxy-4-{(Z)-[(4-morpholin-4-ylphenyl) imino] methyl} phenol at the peripheral positions were sythesized starting from the new phthalonitrile derivative (2). These new compounds (2-5) have been characterized by a combination of FT-IR, H-1 NMR (for compounds 2 and 3), C-13 NMR (for compound 2), UV-Vis (for compounds 3,4 and 5) and mass spectrophotometry techniques. Antioxidant activities of the metallophthalocyanines were investigated by using DPPH free radical scavenging assay and FRAP (ferric ion reducing antioxidant power) method. The antimicrobial activity of the synthesized metallo phthalocyanine compounds (3-5) were determined against the selected different six standart bacteria isolates by microdilution broth assay with Alamar Blue Dye. Most affected bacteria from the compounds were standard E. coli and S. typhimurium (MIC 625 mu g/ml). Standart Y. enterocolitica and S. aureus have been less affected by the compounds (MIC 10.000 mu g/ml). (C) 2019 Published by Elsevier B.V.Research Fund of Artvin Coruh Universty [P.N: 2018.F91.02.01]; Scientific & Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [118Z578]We are greateful of financal support from the Research Fund of Artvin Coruh Universty (P.N: 2018.F91.02.01) and The Scientific & Technological Research Council of Turkey (TUBITAK, project no: 118Z578]

Diesel engine performance and emission study using soybean biodiesel blends with fossil diesel

Azad, M ORCiD: 0000-0001-8258-6057; Rasul, M ORCiD: 0000-0001-8159-1321Biodiesel is an ecofriendly and renewable source of energy which can be used as a sustainable alternative fuel for diesel engine. The study investigated engine performance and emission using soybean biodiesel blends with fossil diesel. The physiochemical fuel properties of the biodiesel were determined using ASTM and EN standards. The biodiesel was blended in different proportions like 5% biodiesel and 95% diesel (by volume) denoted as B5, similarly B10, B20 and B50. The biodiesel blends were tested in a multicylinder, diesel engine coupled with electromagnetic dynamometer, under ISO 8178–4 test procedure. The study found that the biodiesel blends produce less brake power, brake torque and relatively higher brake-specific fuel consumption compared with diesel fuel. However, these fuels significantly reduce exhaust gases, namely, CO, CO2 and HC but emit a bit more NOx compared with diesel. The reduction in emissions were different for each biodiesel blend. The study concluded that both B5 and B10 blends are the optimum blends that produce more consistent and expected results compared with other blends