id	sid	tid	token	lemma	pos
vx021c20z29	1	1	graphene	graphene	NOUN
vx021c20z29	1	2	oxide	oxide	NOUN
vx021c20z29	1	3	(	(	PUNCT
vx021c20z29	1	4	go	go	VERB
vx021c20z29	1	5	)	)	PUNCT
vx021c20z29	1	6	is	be	AUX
vx021c20z29	1	7	a	a	DET
vx021c20z29	1	8	phenomenal	phenomenal	ADJ
vx021c20z29	1	9	nano	nano	NOUN
vx021c20z29	1	10	-	-	PUNCT
vx021c20z29	1	11	adsorbent	adsorbent	NOUN
vx021c20z29	1	12	for	for	ADP
vx021c20z29	1	13	heavy	heavy	ADJ
vx021c20z29	1	14	metal	metal	NOUN
vx021c20z29	1	15	cations	cation	NOUN
vx021c20z29	1	16	;	;	PUNCT
vx021c20z29	1	17	however	however	ADV
vx021c20z29	1	18	,	,	PUNCT
vx021c20z29	1	19	its	its	PRON
vx021c20z29	1	20	acidic	acidic	ADJ
vx021c20z29	1	21	properties	property	NOUN
vx021c20z29	1	22	limit	limit	VERB
vx021c20z29	1	23	its	its	PRON
vx021c20z29	1	24	practical	practical	ADJ
vx021c20z29	1	25	application	application	NOUN
vx021c20z29	1	26	.	.	PUNCT
vx021c20z29	2	1	this	this	DET
vx021c20z29	2	2	study	study	NOUN
vx021c20z29	2	3	investigated	investigate	VERB
vx021c20z29	2	4	the	the	DET
vx021c20z29	2	5	adsorption	adsorption	NOUN
vx021c20z29	2	6	behavior	behavior	NOUN
vx021c20z29	2	7	of	of	ADP
vx021c20z29	2	8	neutralized	neutralized	ADJ
vx021c20z29	2	9	graphene	graphene	NOUN
vx021c20z29	2	10	oxide	oxide	NOUN
vx021c20z29	2	11	,	,	PUNCT
vx021c20z29	2	12	herein	herein	ADV
vx021c20z29	2	13	referred	refer	VERB
vx021c20z29	2	14	to	to	ADP
vx021c20z29	2	15	as	as	ADP
vx021c20z29	2	16	sodium	sodium	NOUN
vx021c20z29	2	17	graphene	graphene	NOUN
vx021c20z29	2	18	oxide	oxide	NOUN
vx021c20z29	2	19	(	(	PUNCT
vx021c20z29	2	20	sgo	sgo	NOUN
vx021c20z29	2	21	)	)	PUNCT
vx021c20z29	2	22	.	.	PUNCT
vx021c20z29	3	1	titration	titration	NOUN
vx021c20z29	3	2	data	datum	NOUN
vx021c20z29	3	3	revealed	reveal	VERB
vx021c20z29	3	4	that	that	SCONJ
vx021c20z29	3	5	the	the	DET
vx021c20z29	3	6	preparation	preparation	NOUN
vx021c20z29	3	7	of	of	ADP
vx021c20z29	3	8	sgo	sgo	NOUN
vx021c20z29	3	9	did	do	AUX
vx021c20z29	3	10	not	not	PART
vx021c20z29	3	11	alter	alter	VERB
vx021c20z29	3	12	the	the	DET
vx021c20z29	3	13	surface	surface	NOUN
vx021c20z29	3	14	sites	site	NOUN
vx021c20z29	3	15	of	of	ADP
vx021c20z29	3	16	go	go	VERB
vx021c20z29	3	17	.	.	PUNCT
vx021c20z29	4	1	an	an	DET
vx021c20z29	4	2	equilibrium	equilibrium	NOUN
vx021c20z29	4	3	derived	derive	VERB
vx021c20z29	4	4	model	model	NOUN
vx021c20z29	4	5	was	be	AUX
vx021c20z29	4	6	used	use	VERB
vx021c20z29	4	7	to	to	PART
vx021c20z29	4	8	estimate	estimate	VERB
vx021c20z29	4	9	the	the	DET
vx021c20z29	4	10	amount	amount	NOUN
vx021c20z29	4	11	of	of	ADP
vx021c20z29	4	12	base	base	NOUN
vx021c20z29	4	13	needed	need	VERB
vx021c20z29	4	14	to	to	PART
vx021c20z29	4	15	neutralize	neutralize	VERB
vx021c20z29	4	16	go	go	VERB
vx021c20z29	4	17	and	and	CCONJ
vx021c20z29	4	18	gave	give	VERB
vx021c20z29	4	19	an	an	DET
vx021c20z29	4	20	excellent	excellent	ADJ
vx021c20z29	4	21	approximation	approximation	NOUN
vx021c20z29	4	22	of	of	ADP
vx021c20z29	4	23	the	the	DET
vx021c20z29	4	24	total	total	ADJ
vx021c20z29	4	25	number	number	NOUN
vx021c20z29	4	26	of	of	ADP
vx021c20z29	4	27	sites	site	NOUN
vx021c20z29	4	28	on	on	ADP
vx021c20z29	4	29	go	go	NOUN
vx021c20z29	4	30	.	.	PUNCT
vx021c20z29	5	1	adsorption	adsorption	NOUN
vx021c20z29	5	2	experiments	experiment	NOUN
vx021c20z29	5	3	and	and	CCONJ
vx021c20z29	5	4	the	the	DET
vx021c20z29	5	5	subsequent	subsequent	ADJ
vx021c20z29	5	6	langmuir	langmuir	PROPN
vx021c20z29	5	7	modeling	modeling	NOUN
vx021c20z29	5	8	showed	show	VERB
vx021c20z29	5	9	sgo	sgo	NOUN
vx021c20z29	5	10	to	to	PART
vx021c20z29	5	11	have	have	VERB
vx021c20z29	5	12	a	a	DET
vx021c20z29	5	13	maximum	maximum	ADJ
vx021c20z29	5	14	adsorption	adsorption	NOUN
vx021c20z29	5	15	capacity	capacity	NOUN
vx021c20z29	5	16	for	for	ADP
vx021c20z29	5	17	lead	lead	NOUN
vx021c20z29	5	18	of	of	ADP
vx021c20z29	5	19	910	910	NUM
vx021c20z29	5	20	(	(	PUNCT
vx021c20z29	5	21	mg	mg	PROPN
vx021c20z29	5	22	g-1	g-1	NOUN
vx021c20z29	5	23	)	)	PUNCT
vx021c20z29	5	24	surpassing	surpass	VERB
vx021c20z29	5	25	that	that	PRON
vx021c20z29	5	26	of	of	ADP
vx021c20z29	5	27	every	every	DET
vx021c20z29	5	28	known	know	VERB
vx021c20z29	5	29	carbon	carbon	NOUN
vx021c20z29	5	30	adsorbent	adsorbent	NOUN
vx021c20z29	5	31	.	.	PUNCT
vx021c20z29	6	1	this	this	DET
vx021c20z29	6	2	study	study	NOUN
vx021c20z29	6	3	shows	show	VERB
vx021c20z29	6	4	that	that	SCONJ
vx021c20z29	6	5	sgo	sgo	NOUN
vx021c20z29	6	6	retains	retains	AUX
vx021c20z29	6	7	go	go	VERB
vx021c20z29	6	8	excellent	excellent	ADJ
vx021c20z29	6	9	adsorption	adsorption	NOUN
vx021c20z29	6	10	capabilities	capability	NOUN
vx021c20z29	6	11	without	without	ADP
vx021c20z29	6	12	caustic	caustic	ADJ
vx021c20z29	6	13	conditions	condition	NOUN
vx021c20z29	6	14	.	.	PUNCT