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dc.contributor.authorLi, Ye
dc.contributor.authorQin, Zhenping
dc.contributor.authorGuo, Hongxia
dc.contributor.authorYang, Hanxiao
dc.contributor.authorZhang, Guojun
dc.contributor.authorJi, Shulan
dc.contributor.authorZeng, Tingying
dc.date.accessioned2014-12-23T19:21:28Z
dc.date.available2014-12-23T19:21:28Z
dc.date.issued2014-12
dc.date.submitted2014-08
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/1721.1/92477
dc.description.abstractIn this work, the positively or negatively charged anatase TiO[subscript 2] nanoparticles were synthesized via a low temperature precipitation-peptization process (LTPPP) in the presence of poly(ethyleneimine) (PEI) and poly(sodium4- styrenesulfonate) (PSS). X-ray diffraction (XRD) pattern and high-resolution transmission electron microscope (HRTEM) confirmed the anatase crystalline phase. The charges of the prepared TiO[subscript 2], PEI-TiO[subscript 2] and PSS-TiO[subscript 2] nanoparticles were investigated by zeta potentials. The results showed that the zeta potentials of PEI-TiO[subscript 2] nanoparticles can be tuned from +39.47 mV to +95.46 mV, and that of PSS-TiO[subscript 2] nanoparticles can be adjusted from −56.63 mV to −119.32 mV. In comparison with TiO[subscript 2], PSS-TiO[subscript 2] exhibited dramatic adsorption and degradation of dye molecules, while the PEI modified TiO[subscript 2] nanoparticles showed lower photocatalytic activity. The photocatalytic performances of these charged nanoparticles were elucidated by the results of UV-vis diffuse reflectance spectra (DRS) and the photoluminescence (PL) spectra, which indicated that the PSS-TiO[subscript 2] nanoparticles showed a lower recombination rate of electron-hole pairs than TiO[subscript 2] and PEI-TiO[subscript 2].en_US
dc.description.sponsorshipNational Natural Science Foundation (China) (21176005)en_US
dc.language.isoen_US
dc.publisherPublic Library of Scienceen_US
dc.relation.isversionofhttp://dx.doi.org/10.1371/journal.pone.0114638en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourcePublic Library of Scienceen_US
dc.titleLow-Temperature Synthesis of Anatase TiO[subscript 2] Nanoparticles with Tunable Surface Charges for Enhancing Photocatalytic Activityen_US
dc.title.alternativeLow-Temperature Synthesis of Anatase TiO2 Nanoparticles with Tunable Surface Charges for Enhancing Photocatalytic Activityen_US
dc.typeArticleen_US
dc.identifier.citationLi, Ye, Zhenping Qin, Hongxia Guo, Hanxiao Yang, Guojun Zhang, Shulan Ji, and Tingying Zeng. “Low-Temperature Synthesis of Anatase TiO[subscript 2] Nanoparticles with Tunable Surface Charges for Enhancing Photocatalytic Activity.” Edited by Vipul Bansal. PLoS ONE 9, no. 12 (December 15, 2014): e114638.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronicsen_US
dc.contributor.mitauthorZeng, Tingyingen_US
dc.relation.journalPLoS ONEen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsLi, Ye; Qin, Zhenping; Guo, Hongxia; Yang, Hanxiao; Zhang, Guojun; Ji, Shulan; Zeng, Tingyingen_US
mit.licensePUBLISHER_CCen_US


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