Study on Treating Stench Wastewater Containing Dodecyl Mercaptan by Electrolyzing Sodium Sulfate Solution
This paper suggests a technological process to oxidize stench sulfide wastewater containing dodecyl mercaptan with electrolyzing Na2SO4 in the presence of active carbon. Preliminary experiments were conducted and good results were obtained. Under the condition that electrolyzing 1%(m/V)Na2SO4 with 1A current and the reaction temperature remains 30 and the reaction time lasts 10 ~ 30 s, the stench dodecyl mercaptan was eliminated.
Electrochemical oxidation of toluene promoted by OH radicals
Benzaldehyde can be produced from toluene by an electrochemical process involving OH radicals. In the cathodic compartment of the electrolytic cell the reduction of molecular O2 and of a metal ion Mox, are simultaneously carried out in the presence of a toluene suspension. Mox is the oxidized form of a redox couple such as V(V)/V(IV), V(IV)/V(III), Cu(II)/Cu(I); the electrogenerated H2O2 and the reduced metal ion generates OH radicals and Mox, which is converted back to the reduced form at the electrode. The reactivity of the redox couples examined were compared from the point of view of their effectiveness for the toluene oxidation process. In some cases, current yields very close to the theoretical ones could be obtained.
Integrating Al with NiO nano honeycomb to realize an energetic material on silicon substrate
Nano energetic materials offer improved performance in energy release, ignition, and mechanical properties compared to their bulk or micro counterparts. In this study, the authors propose an approach to synthesize an Al/NiO based nano energetic material which is fully compatible with a microsystem. A two-dimensional NiO nano honeycomb is first realized by thermal oxidation of a Ni thin film deposited onto a silicon substrate by thermal evaporation. Then the NiO nano honeycomb is integrated with an Al that is deposited by thermal evaporation to realize an Al/NiO based nano energetic material. This approach has several advantages over previous investigations, such as lower ignition temperature, enhanced interfacial contact area, reduced impurities and Al oxidation, tailored dimensions, and easier integration into a microsystem to realize functional devices. The synthesized Al/NiO based nano energetic material is characterized by scanning electron microscopy, X-ray diffraction, differential thermal analysis, and differential scanning calorimetry.