▎ 摘　　要

NOVELTY - Producing graphene doped with nitrogen and sulfur atoms (N,S- DDG) involves providing microorganisms of the halobacteria class which are strictly anaerobic and sulfite-reducing and capable of living between 20-50 degrees C in salinity condition over 200 g-L-1 and at a pH comprised between 7.0 and 10.0, cultivating microorganisms in a medium comprising as electronic donor, in an amount up to 100 mmol, hydrogen (H2), acetate (C2H4O2), formate (CH2O2), glycerol (C3H8O5), glucose (C6H12O6), sucrose (C12H22O11) and other similar sugars, lactate (C3H6O3), short chain fatty acids (C4-C9) and/or pyruvate (C3H4O3), and as electronic acceptor, in an amount up to 50 mmol, any one of sulfur form more oxidized than S2 comprising elemental sulfur (Se0), polysulfide (-S-S6-S-), thiosulfate (S2O32), dimethylsulfoxide (CH3)2SO and tetrathionate (S4O62), contacting a solution of graphene oxide (GO) with culturing medium containing microorganisms for a time sufficient to obtain doping with nitrogen and sulfur. USE - Method for producing graphene doped with nitrogen and sulfur atoms (N,S- DDG) used for doping graphene oxide with nitrogen and sulfur for producing of electronic and electrochemical components, electrodes of electrochemical cells, analytical systems, depuration systems, nanomaterial used as nanocomponents for medical, telecommunication, aeronautic, aerospace, robotic fields, eco- sustainable macro materials as mechanical, automotive, aeronautic, aerospace and robotic components (all claimed). ADVANTAGE - The method is eco-sustainable and economical with the additional advantage of providing a product with significantly improved performance compared to known products. DETAILED DESCRIPTION - Producing graphene doped with nitrogen and sulfur atoms (N,S- DDG) involves providing microorganisms of the Halobacteria class which are strictly anaerobic and sulfite-reducing and capable of living between 20-50 degrees C in salinity condition over 200 g-L-1 and at a pH comprised between 7.0 and 10.0, cultivating microorganisms in a medium comprising as electronic donor, in an amount up to 100 mmol, hydrogen (H2), acetate (C2H4O2), formate (CH2O2), glycerol (C3H8O5), glucose (C6H12O6), sucrose (C12H22O11) and other similar sugars, lactate (C3H6O3), short chain fatty acids (C4-C9) and/or pyruvate (C3H4O3), and as electronic acceptor, in an amount up to 50 mmol, any one of sulfur form more oxidized than S2 comprising elemental sulfur (Se0), polysulfide (-S-S6-S-), thiosulfate (S2O32), dimethylsulfoxide (CH3)2SO and tetrathionate (S4O62), contacting a solution of graphene oxide (GO) with culturing medium containing microorganisms for a time sufficient to obtain the doping with nitrogen and sulfur, washing the graphene to eliminate both the organic phase and the molecules containing nitrogen and sulfur that have not reacted with graphene oxidized. INDEPENDENT CLAIMS are included for following: (1) a plant for producing graphene oxide doped with nitrogen and sulfur, which comprises a first tank for storing and maintaining/growing of the microorganisms which reduce graphene oxide, a second tank for mixing and doping oxide with microorganisms, second tank being hydraulically connected to first tank, conditioning units for the first tank, controlling and regulating pH units of first tank, controlling and regulating temperature units of second tank, units for separating the organic phase from the doped graphene oxide, washing units of the doped graphene oxide, drying units of the doped and washed graphene; and (2) a graphene oxide doped with nitrogen and sulfur, which comprises nitrogen atoms in amount of between 1-9 wt.%, preferably between 1-5 wt.%, and sulfur atoms between 0.3-15 wt.%, preferably between 1-10 wt.%.