id	keyword
brj-23342	nanoparticles
brj-23342	cunps
brj-23342	copper
brj-23342	et al
brj-23342	doi
brj-23342	tea
brj-23342	sample
brj-23342	synthesis
brj-23342	adsorption
brj-23342	degradation
brj-23342	extract