A fluorescent active organic-inorganic hybrid material PyN-SBA-15 was synthesized by implementing pyrene derivatives into mesoporous SBA-15 silica. PyN-SBA-15 had detection and removal functionalities toward Al

3+

Cu

2+

and Hg

2+

. On the one hand

PyN-SBA-15 was used as a fluorescence sensor and displayed high sensitivity toward Al

3+

Cu

2+

and Hg

2+

cations (limit of detection: 8.0×10

-7

1.1×10

-7

and 2.9×10

-6

mol·L

-1

respectively) among various analytes with “turn-off” response. On the other hand

the adsorption studies for these toxic analytes (Cu

2+

Hg

2+

and Al

3+

) showed that the ion removal capacity could reach up to 45

581

and 85 mg·g

-1

respectively. Moreover

the Langmuir isotherm models were better fitted with the adsorption data

indicating that the adsorption was mono-layer adsorption. Kinetic analysis revealed that the adsorption process was well described by the pseudo-second-order kinetic model for Cu

2+

and Hg

2+

and pseudo-first-order kinetic model for Al

3+

. The prepared silica material could be reused in

four recycles without significantly decreasing its adsorption capacity. Therefore

the PyN-SBA-15 material can serve as a promising candidate for the simultaneous rapid detection and efficient adsorption of metal ions.