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| 1 | In situ preparation of g-C3N4/Bi4O5I2 complex and its elevated photoactivity in Methyl Orange degradation under visible light显示文摘A graphite carbon nitride(g-C3N4)modified Bi4O5I2 composite was successfully prepared insitu via the thermal treatment of a g-C3N4/Bi OI precursor at 400°C for 3 hr.The as-prepared g-C3N4/Bi4O5I2 showed high photocatalytic performance in Methyl Orange(MO)degradation under visible light.The best sample presented a degradation rate of 0.164 min^-1,which is 3.2 and 82 times as high as that of Bi4O5I2 and g-C3N4,respectively.The g-C3N4/Bi4O5I2 was characterized by X-ray powder diffractometer(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),Raman,X-ray photoelectron spectroscopy(XPS),ultraviolet-visible diffuse reflectance spectra(DRS),electrochemical impedance spectroscopy(EIS)and transient photocurrent response in order to explain the enhanced photoactivity.Results indicated that the decoration with a small amount of g-C3N4 influenced the specific surface area only slightly.Nevertheless,the capability for absorbing visible light was improved measurably,which was beneficial to the MO degradation.On top of that,a strong interaction between g-C3N4 and Bi4O5I2 was detected.This interplay promoted the formation of a favorable heterojunction structure and thereby enhanced the charge separation.Thus,the g-C3N4/Bi4O5I2 composite presented greater charge separation efficiency and much better photocatalytic performance than Bi4O5I2.Additionally,g-C3N4/Bi4O5I2 also presented high stability.·O2^- and holes were verified to be the main reactive species. | Zhe Feng Lin Zeng Qingle Zhang Shifeng Ge Xinyue Zhao Hongjun Lin Yiming He | 2020 | Journal of Environmental Sciences2020,32,1: | 12 |
| 2 | 光催化二氧化碳还原催化体系研究进展显示文摘以近年来发表的聚二乙炔相关文献为基础,对有机金属配合物应用于光催化二氧化碳还原的研究进展进行了介绍,并对其底物和催化剂的选择及未来发展提出了看法。 | 霍景沛 林冲 陈桂煌 | 2020 | 化学推进剂与高分子材料2020,18,3: | 4 |
| 3 | Photocatalysis: Preface显示文摘A recent search of the keyword'Photocatalysis'in the CAS Sci Finder?database shows that at least 5,000 articles on this topic have been published each year from 2014 to2016.It is expected that even more articles on this topic will be published in the foreseeable future.These data indicate the importance of'Photocatalysis'in the field.The | Po Keung Wong | 2017 | Journal of Environmental Sciences2017,29,10: | 1 |
| 4 | Three-dimensional biogenic C-doped Bi_2MoO_6/In_2O_3-ZnO Z-scheme heterojunctions derived from a layered precursor显示文摘Novel 3D biogenic C-doped Bi_2 MoO_6/In_2O_3-ZnO Z-scheme heterojunctions were synthesized for the first time, using cotton fiber as template. The as-prepared samples showed excellent adsorption and photodegradation performance toward the hazardous antibiotic doxycycline under simulated sunlight irradiation. The morphology, phase composition and in situ carbon doping could be precisely controlled by adjusting processing parameters. The carbon doping in Bi_2 MoO_6/In_2O_3-ZnO was derived from the cotton template, and the carbon content could be varied in the range 0.9–4.4 wt.% via controlling the heat treatment temperature. The sample with Bi_2 MoO_6/In_2O_3-ZnO molar ratio of 1:2 and carbon content of1.1 wt.% exhibited the highest photocatalytic activity toward doxycycline degradation,which was 3.6 and 4.3 times higher than those of pure Bi_2 MoO_6 and Zn In Al-CLDH(calcined layered double hydroxides), respectively. It is believed that the Z-scheme heterojunction with C-doping, the 3D hierarchically micro–meso–macro porous structure, as well as the high adsorption capacity, contributed significantly to the enhanced photocatalytic activity. | Hongyan Li Jia Li Ping Yang Dickon H.L.Ng Xinling Cui Fei Ji | 2019 | Journal of Environmental Sciences2019,31,5: | 1 |
| 5 | 磷掺杂提升三氧化钨导带用于高效二氧化碳还原显示文摘光电催化还原二氧化碳是一种环境友好的高效方法,可将过量排放的CO_(2)转化为燃料与化学品,减少温室效应并存储太阳能为化学能.本研究设计制备了新型磷掺杂的WO_(3)催化剂,并将其用于CO_(2)和水转化为碳基化学品.通过X射线粉末衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、顺磁共振(EPR)等证实了新型催化剂的成功制备;通过紫外可见(UV-vis)、线性扫描伏安曲线(LSV)、莫特-肖特基(Mott-Schottky)和电化学交流阻抗谱(EIS)表征了其光电性能.结果表明,随着P掺杂量的增加,其导带位置从WO_(3)的-0.13 V升高到30-P样品的-0.54 V,增强了其对CO_(2)的还原能力;所有样品X-P比纯WO_(3)有更高的活性,其中15-P电极还原CO_(2)的活性最高,其光电池的表观光量子效率为0.4%,与植物的光合作用相当,且导带位置越高越有利于甲酸和乙酸产物的生成,而相对较低的导带更有利于乙醇的生成.同时,氧空位对反应的正影响也通过设计H_(2)O_(2)猝灭实验进行了验证. | 于晓刚 魏艳 陈云 王继贤 景欢旺 | 2021 | 科学通报2021,66,7: | 1 |