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(a,b) Degradation concentration and degradation of Co9S8, NCQDs-G@Co9S8, NCQDs-DG@Co9S8, and NCQDs-D@Co9S8. (c,d) Degradation concentration and degradation of Co9S8/NCQDS synthesized using water, ethanal, and DMF. (e–i) Degradation concentration and degradation of methylene blue dye and degradation concentration.
