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您的检索式：作者名="WEI Junchong"
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| 1 | Synthesis and Characterization of Rectorite/ZnO/TiO2 Composites and Their Properties of Adsorption and Photocatalysis for the Removal of Methylene Blue Dye显示文摘As efficient water treatment agents, a novel series of rectorite-based ZnO and TiO_2 hybrid composites(REC/ZnO/TiO_2) were synthesized and characterized in this study. Effects of experimental parameters including TiO_2 mass ratio, solution p H and catalyst dosage on the removal of methyl blue(MB) were also conducted. The presence of a little mass ratio(2%-6%) of TiO_2 highly promoted the photoactivity of REC/ZnO/TiO_2 in removal of MB dye from aqueous solution, in which ZnO and REC played a role of photocatalyst and adsorbent. The promotion effects of TiO_2 may result from the accelerated separation of electron-hole on ZnO. The observed kinetic constant for the degradation of MB over REC/ZnO and REC/ZnO/TiO_2 were 0.015 and 0.038 min^(-1), respectively. The degradation kinetics of MB dye, which followed the Langmuir–Hinshelwood model, had a reaction constant of 0.17 mg/(L min). The decrease of removal ratio of MB after five repetitive experiments was small, indicating REC/ZnO/TiO_2 has great potential as an effective and stable catalyst. | 王欢欢 周培疆 WANG Jia WANG Yifei WEI Junchong ZHAN Hongju GUO Rui ZHANG Yali | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，3： | 5 |
| 2 | Preparation of Calcium Cross-linked Nano-Fe3O4 Modified Zeolite Microspheres for Cu^2+ Adsorption from Wastewater显示文摘Artificial zeolite was modified by nano-Fe3O4 for development of functional adsorbents.Subsequently,adsorbents such as calcium cross-linked nano-Fe3O4 microspheres (Ca-MS),calcium cross-linked nano-Fe3O4 modified zeolite microspheres (Ca-MZS) and iron cross-linked nano-Fe3O4 modified zeolite microspheres (Fe-MZS) were prepared and compared for their adsorption performance.The effects of adsorbent dosage,solution pH,initial concentration and ion content on the removal of Cu^2+ from wastewater are investigated,and the adsorption kinetics and isotherms for the adsorbent materials were analyzed.The experimental results indicate that for the initial concentration of Cu^2+ of 30 mg/L,the adsorption is noted to be most stable.The optimal initial pH for adsorbing Cu^2+ is observed to be 5.5.At an optimal dosage of Ca-MZS of 900 mg/L,the adsorption capacity is measured to be 28.25 mg/g,along with the removal rate of 72.49%.The addition of Na+ and K+ affects the adsorption of Cu^2+.For the Na^+ and K^+ concentration of 0.2 mmol/L,the Cu^2+ removal rate by Ca-MZS drops to 11.94% and 22.12%,respectively.As compared with the adsorbents such as Natural Zeolite (NZ),Ca-MS and Fe-MZS,Ca-MZS demonstrates the best removal effect in solution,where the removal rate reaches 84.27%,with the maximum adsorption capacity of 28.09 mg/g.The Cu^2+ adsorption kinetics of Ca-MZS is observed to follow the Elovich kinetic model,with the adsorption isotherm data fitting the Freundlich isotherm model by using the non-linear method. | WEI Junchong 龙学军 王佳 TANG Zheng WANG Tingting KANG Hanyu LIANG Shuang | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，6： | 2 |
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