Nano-Zero-Valent Iron Incorporated Acidified Activated Carbon Coupled with Persulfate Catalyst for High-Efficient Degradation of Phenol from Water
Zhongqi Jia a, b #, Linlin Hao a, b #, Xianbin Liua, b*
a School of Marine and Environmental Sciences, Tianjin University of Science &Technology, 300457 Tianjin, China
b Key Laboratory of Marine Resource Chemistry and Food Technology (TUST), Ministry of Education, 300457 Tianjin, China
*Correspondence author: lxb0688@tust.edu.cn (Xianbin Liu)
#Zhongqi Jia and Linlin Hao contributed equally to this work

Fig. S1 Mineralization rate and degradation rate of phenol in AC-nZVI/PS system

Fig. S2 Effect of inital phenol concentration on phenol removal

Fig. S3 (a) Kinetic rate constants of different systems;(b) Contribution of ROS to phenol removal in HAC-nZVI/PS system

Table S1 Possible intermediate products during the removal of phenol
Name	Retention time(min)	Molecular formula	m/z	Structures	
P1	9.025	C6H8O3	129		
P2	3.044	C4H6O3	103		
P3	13.818	C4H4O4	117		
P4	6.769	C6H8O2	113		
P5	9.025	C6H8O3	129		
P6	4.64	C6H8O4	145		

Table S2 Mass-charge ratio,structural formula and environmental risk index of phenol and degradation intermediates
Name	m/z	structure	LC50 (mg/L)	LD50 (mg/kg)	Bioenrichment factor	developmental toxicity	mutagenicity	
Ph	95		7.44	434.02	7.61	0.58	0.25	
P1	129		146.84	5166.66	0.89	0.43	0.10	
P2	103		241.28	1577.03	0.84	0.77	0.07	
P3	117		228.79	1710.76	0.53	0.79	0.19	
P4	113		134.70	1814.95	3.31	0.61	0.32	
P5	129		217.25	2489.05	1.75	0.59	0.11	
P6	145		185.16	8807.37	0.41	0.26	0.07