The victory at the El Prat was the first time that Sevilla had won on the road in La Liga since September 2012.
"We wanted to play a confident game from back to front. Our priority today was to win, leaving behind the background stuff," Emery told reporters at a press conference.
"We did well. We wanted a clean sheet, but we're satisfied with the victory. This can give us confidence to grow as a team and hopefully go and get more good results away from home. I thought the whole team did a great job."
Sevilla currently sit 11th in the league table.