title: Influences of glycerol as an efficient doping agent on crystal structure and antibacterial activity of B-TiO2 nano-materials.
abstract: In this study, highly effective boron acid and glycerol co-doped TiO2 nano-materials were directly synthesized via a sol-gel method. The resulting materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectrum (FT-IR), UV-vis diffuse reflectance spectroscopy (DRS) and X-ray photoelectron (PL) spectroscopy. The results indicate that boron dopant is partially embedded into the interstitial TiO2 structure or incorporated into the TiO2 lattice through occupying the position of the oxygen atom, and others is present in the form of B2O3. Boron acid and glycerol co-doping TiO2 materials show obvious red shift in their absorption edges and efficient electron-hole separation because of the glycerol doping. The study on the antibacterial activities demonstrate that co-doped TiO2 nano-materials could effectively inactivate the bacteria under visible light irradiation. Co-doped TiO2 nano-materials exhibit more excellent antibacterial performance than B-doped TiO2 nano-materials.
authors.affiliation: Institute of Metallurgical Resources and Environmental Engineering, Northeastern University, Shenyang 110819, China; Liaoning Key Laboratory of Metallurgical Resources Recycling Science, Shenyang 110819, China; Liaoning Engineering and Technology Research Center of Boron Resources Comprehensive Utilization, Shenyang 110819, China; Liaoning Provincial Universities Key Laboratory of Boron Resources Ecological Utilization Technology and Boron Materials, Shenyang 110819, China. Electronic address: yangh@smm.neu.edu.cn.
authors.forename: He
authors.initials: H
authors.lastname: Yang
authors.affiliation: Institute of Metallurgical Resources and Environmental Engineering, Northeastern University, Shenyang 110819, China; Liaoning Key Laboratory of Metallurgical Resources Recycling Science, Shenyang 110819, China; Liaoning Engineering and Technology Research Center of Boron Resources Comprehensive Utilization, Shenyang 110819, China; Liaoning Provincial Universities Key Laboratory of Boron Resources Ecological Utilization Technology and Boron Materials, Shenyang 110819, China. Electronic address: zheng_wangyu@qq.com.
authors.forename: Yuzheng
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Institute of Metallurgical Resources and Environmental Engineering, Northeastern University, Shenyang 110819, China; Liaoning Key Laboratory of Metallurgical Resources Recycling Science, Shenyang 110819, China; Liaoning Engineering and Technology Research Center of Boron Resources Comprehensive Utilization, Shenyang 110819, China; Liaoning Provincial Universities Key Laboratory of Boron Resources Ecological Utilization Technology and Boron Materials, Shenyang 110819, China.
authors.forename: Xiangxin
authors.initials: X
authors.lastname: Xue
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D003460:Crystallization; D018360:Crystallography, X-Ray; D005990:Glycerol / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D049329:Nanostructures; D056951:Photoelectron Spectroscopy; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; C009495:titanium dioxide; D014025:Titanium; D005990:Glycerol
keywords: Antibacterial activity; Boron-doping; Glycerol; Nano-composites; Titania