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were analyzed by aCary 500 UV-vis-NIR spectrophotometer (Varian, PaloAlto, CA, USA)at464nm. 4. Conclusions In summary, using electrospinning technology and SILAR method, heterojunctions of p-BiOI/n-TiO2 NFs have been successfully fabricated. Due to the p-n heterojunction effects and large specific surface area, the BiOI/TiO2-C30 exhibits higher visible-light photocatalytic behavior in comparison with other samples for degradation of MO. Furthermore, the p-BiOI/n-TiO2 NFs can be easily recycled without a decrease of the photocatalytic activity because of their nanofibrous nonwoven web structure property. It is expected that the p-BiOI/n-TiO2 NFs with high photocatalytic activity will greatly promote their industrial application to eliminate theorganicandinorganicpollutants fromwastewater. SupplementaryMaterials: SupplementaryMaterials: Thefollowingareavailableonlineat www.mdpi.com/1996-1944/9/2/90/s1. Acknowledgments: Acknowledgments: Thework issupportedfinanciallybytheNational Basic Research Program of China (973 Program) (Grant No. 2012CB933703), the National NaturalScienceFoundationofChina(No. 91233204,51272041,61201107,and51572045), the 111Project (No. B13013),andtheFundamentalResearchFundsfor theCentralUniversities (12SSXM001). Author Contributions: Author Contributions: Kexin Wang and Xinghua Li performed the experimentsandanalyzedthedata; ChangluShaoandYichunLiudesignedtheexperiments and revised the draft; Na Lu and Fujun Miao contribute reagents/materials/analysis tools; andKexinWangwrote thepaper. Conflictsof Interest: Conflictsof Interest: Theauthorsdeclarenoconflictof interest. References 1. Hoffmann,M.R.;Martin,S.T.;Choi,W.;Bahnemann,D.W.Environmentalapplicationsof semiconductorphotocatalysis. Chem. Rev. 1995,95, 69–96. 2. Zhang, K.; Liu, C.; Huang, F.; Zheng, C.; Wang, W. Study of the electronic structure andphotocatalyticactivityof theBiOClphotocatalyst. Appl. Catal. BEnviron. 2006,68, 125–129. 3. Zhang,X.;Liu,X.;Fan,C.;Wang,Y.;Wang,Y.;Liang,Z.AnovelBiOClthinfilmprepared byelectrochemicalmethodanditsapplication inphotocatalysis. Appl. Catal. BEnviron. 2013,132–133, 332–341. 4. Zhang, X.; Ai, Z.H.; Jia, F.L.; Zhang, L.Z. Generalized one-pot synthesis, characterization, andphotocatalyticactivityofhierarchicalBiOX(X=Cl,Br, I)nanoplatemicrospheres. J.Phys. Chem. C 2008, 112, 747–753. 5. Wang, D.H.; Gao, G.Q.; Zhang, Y.W.; Zhou, L.S.; Xu, A.W.; Chen, W. Nanosheet-constructed porous BiOCl with dominant {001} facets for superior photosensitizeddegradation. Nanoscale2012,4, 7780–7785. 142