id	keyword
brj-23667	biochar
brj-23667	et al
brj-23667	surface
brj-23667	adsorption
brj-23667	irradiation
brj-23667	groups
brj-23667	doi
brj-23667	wang
brj-23667	metals
brj-23667	article
brj-23667	mpc
brj-23667	bioresources
brj-23667	uv irradiation
brj-23667	biochar surface
brj-23667	fig