Table 1
SSA and deNOxability of the samples prepared under different conditions, together with those of P25 titania
Sample	Synthesis condition	Morphology	SSA (m2/g)	DeNOxphotocatalytic activity (%)
				>410 nm	>290 nm
P25 Titania AEROXIDE®	Commercial	–	55.9	28.3	37.5
ZnO	0.01 M ZnCl2–HMT mixed aqueous solution	Spindle-like	4.3	4.25	18.1
Zn5(OH)8Cl2 · H2O	0.05 M ZnCl2–HMT mixed aqueous solution	Plate-like	19.4	2.01	11.7
ZnO	0.05 M ZnCl2–HMT mixed 50% EG solution	Hexagonal rod-like	3.2	0	17.7
Zn5(OH)8Cl2 · H2O	0.1 M ZnCl2–HMT mixed 50% EG solution	Plate-like	19.7	0	11.2

Long et al. Nanoscale Research Letters 2008 4:247   doi:10.1186/1556-276X-4-247