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| 1 | Novel synthesis of Z-schemeα-Bi2O_(3)/g-C_(3)N_(4) composite photocatalyst and its enhanced visible light photocatalytic performance:Influence of calcination temperature显示文摘In this study,α-Bi2O_(3)/g-C_(3)N_(4) nanocomposite with direct Z-scheme was successfully prepared through calcination of BiOCOOH/g-C_(3)N_(4) precursor at different temperature.Meanwhile,the effect of calcination temperature on the physicochemical properties ofα-Bi2O_(3)/g-C_(3)N_(4) was studied.All results confirmed that calcination tempe rature greatly influences structural,morphology,surface states,photoelectrochemical property and photocatalytic(PC)perfo rmance ofα-Bi2O_(3)/g-C_(3)N_(4) composite.Furthermore,theα-Bi2O_(3)/gC_(3)N_(4) composite was applied as photocatalyst to degrade amido black 10 B dye under visible light irradiation.It was found that the composite synthesized at 400℃exhibited the highest PC performance due to the intense visible light absorbance and high separation efficiency of electron and hole pairs.Besides,the possible PC mechanism was proposed that the photo-generated charge carrier migration inα-Bi2O_(3)/g-C_(3)N_(4) photocatalyst followed a Z-scheme structure.Finally,the stability test also manifest that theα-Bi2O_(3)/g-C_(3)N_(4) composite photocatalyst has good stability and reusability,which was a promising candidate for wastewater treatment. | Bo Li Li-Chao Nengzi Ruonan Guo Yuqi Cui Youxian Zhang Xiuwen Cheng | 2020 | Chinese Chemical Letters2020，31，10： | 3 |
| 2 | Degradation of tartrazine by peroxymonosulfate through magnetic Fe_(2)O_(3)/Mn_(2)O_(3) composites activation显示文摘In this study,Fe_(2)O_(3)/Mn_(2)O_(3) composite was synthesized by a facile two-step technique,and several methods were carried out to characterize it.Then,the decomposition experiments of tartrazine(TTZ),a kind of refractory o rganic pollutant,were conducted under various enviro nmental condition to detect the catalyst performance,such as reaction system,the dosage of catalyst,peroxymonosulfate(PMS)concentration,initial pH,different natural water substances.The results exhibited that Fe_(2)O_(3)/Mn_(2)O_(3) composite with the mole rate 2:3 had the best PMS activation performance and the removal efficiency was 97.3%within 30 min.Besides,the optimum degradation conditions of TTZ we re also discussed,that is catalyst dosage(0.6 g/L),PMS concentration(0.8 g/L)and the initial pH 11.In addition,proved by the natural water substances adding experiments,HPO_(4)^(2)-,HCO_(3)^-,NO_(3)^-and NOM(nature organic matter)could slow down the experiments progressing,but Cl^-could boost it.Then inhibitor experiments indicated both the HO^·and SO_(4)^·-played a vital role in the experiments.Reusability and ions leaching experiments as well as the used catalyst physical characte rization images exhibited the excellent stability and cyclicity of the Fe_(2)O_(3)/Mn_(2)O_(3) composite.Finally,based on the XPS(X-ray photoelectro n spectro scopy)and the experiments results,the possible mechanism of TTZ degradation was proposed.This system might provide a novel thought for the decomposition of refractory organic pollutant and had potential in promotion of actual sewage treatment technology. | Gong Chen Li-Chao Nengzi Yingjie Gao Guixian Zhu Jianfeng Gou Xiuwen Cheng | 2020 | Chinese Chemical Letters2020，31，10： | 2 |
| 3 | Simultaneous removal of elemental mercury in aqueous potassium hypochlorite by oxidation 显示文摘 | Liu Shengyu Nengzi Lichao Qu Bin | 2010 | Environmental Engineering Science2010，27，4： | 1 |
| 4 | Characterization and flocculation mechanism of a bioflocculant from hydrolyzate of rice stover显示文摘 | Junyuan Guo Jing Yu Xin Xin Changwu Zou Qingfeng Cheng Huaijin Yang Lichao Nengzi | 2014 | Bioresource Technology2014，，： | 1 |
| 5 | Construction of high-efficient visible photoelectrocatalytic system for carbamazepine degradation:Kinetics,degradation pathway and mechanism显示文摘This study aimed to construct a photoelectrocatalytic(PEC)reaction system based on the self-made reduced TiO_(2) NTAs(r-TNAs)photoanode and activated carbon/Polytetrafluoroethylene(AC/PTFE)cathode.It would be observed clearly that the degradation rate constant of carbamazepine(CBZ)over r-TNAs(photoanode)-AC/PTFE(cathode)PEC system(0.04961 min^(-1))was even higher than that of r-TNAs(photoanode)-Pt(cathode)PEC system(0.04602 min^(-1))with the assistance of visible light irradiation and+0.4 V external potential.Besides,in order to obtain optimized conditions,the influence of key parameters such as pH value,electric current density and electrolyte concentration were studied.Most impo rtantly,photoelectrochemical(PECH)properties,reactive oxide species contribution.OH formation rate and CBZ degradation pathway were determined.The results illustrated that the excellent PEC degradation performance depended on the excellent photocatalytic property of r-TNAs photoanode and electron transfer prope rty of photoelectrodes in r-TNAs(photoanode)-AC/PTFE(cathode)PEC system.Therefo re,the study demonstrated that the r-TNAs(photoanode)-AC/PTFE(cathode)PEC system could be expected to replace metal-catalyzed cathodes depending on its excellent PEC performance activity and low cost as well as the reaction system possessed objective and practical application prospect. | Ruonan Guo Li-Chao Nengzi Ying Chen Qingqing Song Jianfeng Gou Xiuwen Cheng | 2020 | Chinese Chemical Letters2020，31，10： | 1 |
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