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Pengwei Huo,Jingru Guan,Mingjun Zhou,CHANGCHANG MA,XINLIN LIU,Yongsheng Yan,Shouqi Yuan 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.50 No.-
Carbon quantum dots (CQDs)/CdSe/reduced graphene oxide (rGO) was fabricated by hydrothermalmethod. The structures, optical and electronic properties of as-obtained photocatalysts were analyzed bytransmission electron microscopy (TEM), X-ray diffraction (XRD) and photoelectrochemical testing. Thephotocatalytic performances were investigated by degradation of tetracycline hydrochloride (TC HCl). The results showed CQDs modified CdSe loaded rGO could effectively remove TC HCl, the CdSe modifiedwith 7 mL CQDs showed higher photocatalytic degradation rate; the 5 wt% loaded rGO for CQDs/CdSeshowed highest photocatalytic activity. The photocatalytic mechanism exhibited OH, O2and 1O2radicals play key roles
Dongyao Wu,Jinze Li,Jingru Guan,Chongyang Liu,Xiaoxu Zhao,Zhi Zhu,CHANGCHANG MA,Pengwei Huo,Chunxiang Li,Yongsheng Yan 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.64 No.-
An Intercalated heterostructural g-C3N4/TiO2/HNTs supported photocatalyst was successfully prepared via sol–gel and calcination methods. The introduction of HNTs and the g-C3N4-TiO2 heterojunction effectively enhanced the charge transfer and separation efficiency of photogenerated electron–hole pairs, which endued the g-C3N4/TiO2/HNTs hybrid material with an outstanding photoelectric performance and good stability. And an obviously enhanced photocatalytic activity was exhibited by photodegrading ciprofloxacin compared with pure TiO2. Furthermore, the main active species were detected through trapping experiment and ESR spin-trap technique with DMPO, which confirmed that the O2− and the h+ were the main active species in the photocatalytic system.
Huiqin Wang,Dongyao Wu,Chongyang Liu,Jingru Guan,Jinze Li,Pengwei Huo,XINLIN LIU,Qian Wang,Yongsheng Yan 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.67 No.-
The purpose of this work designed hybrid-structured and plasma effect photocatalyst of Ag/In2O3/TiO2/HNTs via sol–gel and photo-reduction methods. The structures, morphologies, optical and photoelectric performances of as-prepared photocatalysts were characterized via XRD, TEM, XPS, BET, UV–vis DRS, PL and photocurrents. The photocatalytic activity was evaluated by degradation of TC. The results showed that the hybrid-structure and plasma effect can effectively cause the multi-transfer of electrons and increase the separation rate of electron and hole pairs which obtained high photocatalytic activity. The photocatalytic degradation processes reveal that O2− and h+ are major active species.
Pengwei Huo,Chongyang Liu,Dongyao Wu,Jingru Guan,Jinze Li,Huiqin Wang,Qi Tang,Xiuying Li,Yongsheng Yan,Shouqi Yuan 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.57 No.-
In this work, we reported one kind of photocatalytic and antibacterial materials, Ag/Ag2S/reducedgraphene oxide (rGO), which prepared by the hydrothermal and UV-light-assisted reduction methods. The Ag2S nanoparticals were well dispersed on the surface of rGO as revealed by series ofcharacterization. The obtained Ag/Ag2S/rGO photocatalyst showed excellent photocatalytic degradationefficiency of 87.6% for ciprofloxacin (CIP) under visible light irradiation and outstanding antibacterialactivity for Escherichia coli (E. coli) which reached to 97.76% in 24 h. The trapping of active species showedthat the hydroxyl radicals, holes and superoxide radicals played important roles in the photocatalyticdegradation of CIP processes.