![]() Other works demonstrate that the excellent electrical conductivity of carbon materials may play important roles in organic pollutants reduction by sulfide, enhancing electron transfer from sulfide to the pollutants and facilitating the formation of some critical intermediate. Some studies attributed the facilitation of carbon materials for pollutant reduction to oxygen functional groups, especially quinones on the surface of PCM that may help activate pollutant molecules and enhance electron transfer. The enhanced mechanisms of PCM for the reductive removal of various organic pollutants by sulfide are diverse. For example, black carbon facilitates trifluralin and pendimethalin abiotic reduction by sulfide, and graphene accelerates nitrobenzene degradation by sulfide. Recent studies indicate that PCM could catalyze the reduction of various organic pollutants by sulfide coming from the microbial reduction of sulfate. Traditionally, PCM has been merely viewed as a passive adsorbent for concentrating, capturing, and sequestering contaminants in an aquatic environment. Pyrogenic carbonaceous matter (PCM), including environmental black carbon (biomass char and fossil fuel soot), engineered carbons (activated carbon), and carbon nanomaterials (graphene and carbon nanotubes), constitute between 10% and 30% of organic carbon in sediments. This study not only provides a better understanding of PCM impact on transformations and fates of organic pollutants in natural environments, but also offer a new regulation strategy for more efficient wastewater treatment processes in PCM-catalyzed engineering systems. This is attributed to the improved electron conductivity through graphitic nitrogen doping, and the enhanced interactions between sulfide and carbon atoms bonded to graphitic nitrogen. Gas chromatography-mass spectrometry and in-situ surface Raman analysis demonstrated that doping nitrogen, especially graphite one facilitated reactive intermediate polysulfides formation. ![]() Particularly, graphitic nitrogen played a critical role in NGs-catalyzed MO decolorization by sulfide. In this study, we found that stagnate time of azo dye methyl orange (MO) decolorization was reduced to 0.54-18.28 min in the presence of various nitrogen-doped graphenes (NGs), remarkably lower compared to graphene itself. And don’t forget to put the unit g/mol to your final calculated molar mass.Pyrogenic carbonaceous matter (PCM) catalyzes azo dye decolorization by sulfide, but the nitrogen doping catalytic mechanisms are poorly understood.First solve the brackets, then multiplications and at last do the final addition. Always follow the calculation order to avoid any mistakes in calculation.But all these units (i.e g/mol, grams/mole and g/mole) are the same. In some books, you may see the unit of molar mass as grams/mole or g/mole.I hope you have understood the short and simple calculation for finding the molar mass of Ammonium sulfate. Hence the Molar mass of Ammonium sulfate is 132.134 g/mol. Now, to calculate the molar mass of Ammonium sulfate, you just have to add the molar mass of all the individual atoms that are present in Ammonium sulfate.
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