id	keyword
ap-7440	zeolite
ap-7440	zno
ap-7440	adsorption
ap-7440	nanocomposite
ap-7440	dye
ap-7440	zeolite nanocomposite
ap-7440	procion
ap-7440	degradation
ap-7440	red
ap-7440	process
ap-7440	isotherm
ap-7440	light
ap-7440	sunlight