“…The sample treatment times (60 s, 90 s and 120 s) were varied to obtain plasma-modified composite catalysts, labeled as g-C 3 N 4 @Co(OH) 2 + PA/X (X = 60s, 90s, 120s). So far, team members have published papers on the use of plasma techniques to degrade different dyes [ 33 , 34 ].…”