ABSTRACT We report a versatile microemulsion electrospinning method to fabricate hollow Tio2 nanofibers. A microemulsion of titanium isopropoxide (TiP)lpolymethyl methacrylate)(PMMA) solution, hexadecyl trimethyl ammonium bromide (CTAB: surfactant), and paraffin oil was used as the precursor, with an electrospinning method. The TO2 samples were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (RD), and Brunauer-Emmett-Teller (BET analyses.The specific surface areas of the Tio2 fibers and hollow Tio2 fibers were 30.01 and 59.27 mE respectively.The pore volumes of the TO2 fibers and hollow Tio2 fibers were 0.10 and 0.19 cm3lg, respectively. The average pore size of the samples was 3.7 nm. These photocatalysts were evaluated based on the photodecompo- sition of methylene blue under ultraviolet light. The photocatalytic degradation rate followed a pseudo- first-order equation. The kinetic constants (k) of the Tio, fiber and hollow Tio2 fibers samples were 2.18 x 10-2 and 3.47 x 10 respectively e 2013 Elsevier BV. All rights reserved.