Column-shaped nanotitanosilicate particles were successfully prepared by diffusion flame reactor using the mixture of titanium (IV) isopropoxide (TTIP) and tetraethoxysilane (TEOS) at selected TTIP to TEOS ratios (wt %; 12:1, 10:1, 4:1, and 2:1) with three different carrier gases (air, nitrogen, and argon). Then, photocatalytic fibers were generated by extending the column-shaped nanotitanosilcate through the rotating glass plate for collection. The photocatalytic capability of the synthesized fibers using air as a carrier gas shows a mercury removal efficiency close to 90% under fluorescent light. Nanosilicate fibers synthesized using nitirgen and argon as a carrier gas resulted in a near-zero mercury removal efficiency under fluorescent light. Nanosilicate fibers synthesized using nitirgen and argon as a carrier gas shows a mercury removal efficiency under fluorescent light. But Hg removal efficiency was closed to 85% under the black light source by fabricated using the variations of carrier gas (N2, Air and Ar).