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Journal of Rare Earths 2023年第7期41卷 1031-1041,I0003页

作者： Mengjie Fan Qingping Zou Jining Liu Yingwen Chen Jianliang Zhu shubao shen Research and Development Center for Watershed Environmental Eco-Engineering Beijing Normal UniversityZhuhai 519087China College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjing 210009China

Surfactant-modified CeO_(2)@TiO_(2) core-shell nanostructure catalysts were prepared by coprecipitation with the addition of sodium dodecyl sulfonate(SDS),and their catalytic oxidation of dichloromethane(DCM) was studied.A 90% DCM conversion efficiency is obtained at 300℃ with the CeO_(2)@TiO_(2)SDS catalyst,and its catalytic stability in the 55 h test period is better than that of Ce/TiO_(2) and CeO_(2)@TiO_(2).Based on the characterization of CeO_(2)@TiO_(2)SDS,the dispersion of active components is promoted due to the inhibition of crystal growth with the introduction of SDS.The improvement of surface acidity and redox capacity is beneficial to the enhancement of catalytic activity.The higher adsorbed oxygen content on the surface of the CeO_(2)@TiO_(2)SDS catalyst is responsible for the better catalytic stability.Generally,a novel method was developed to design catalytic oxidation catalysts for the treatment of chlorinated volatile organic compounds in future applications.

关键词： Surfactant Oxidation Cerium titanium system Core-shell structure catalyst Dichloromethane Rare earths

Acid modified carrier on catalytic oxidation of dichloromethane over CeO_(2)/HZSM-5 catalysts

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Journal of Rare Earths 2022年第10期40卷 1564-1572页

作者： Mengxiang Li Jing Mo Xuanyu Gu Yue Zhou Mengjie Fan shubao shen Yingwen Chen College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University.Nanjing 210009China

In this study,a series of Hydrogen-Zeolite Socony Mobil-5-X(HZSM-5-X) catalysts were prepared by acid modification,then Ce/HZSM-5-X(X=0,0.2,0.4,1.0,2.0) catalysts were prepared by impregnation method.The catalytic performance of the catalysts on dichloromethane(DCM) oxidation was investigated.Through different characterizations,HZSM-5-X exhibit high specific surface area,good redox ability,rich acidity and much suitable acidic site distribution after acid treatment.Among them,Ce/HZSM-5-0.4 shows better catalytic activity with the lowest by-product and the best CO_(2) yield.Its T_(90) is 302℃ and the CO_(2) yield of T_(90) is more than 80 wt%,which demonstrates that the acid modification of carrier plays the positive effect on the catalytic capacity for DCM oxidation.

关键词： Catalytic oxidation Cerium HZSM-5 zeolite Acid treatment Dichloromethane Rare earths

Highly efficient Zr doped-TiO_2/glass fiber photocatalyst and its performance in formaldehyde removal under visible light

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Journal of Environmental Sciences 2017年第10期29卷 61-69页

作者： Chao Huang Yaping Ding Yingwen Chen Peiwen Li Shemin Zhu shubao shen State Key Laboratory Materials of Materials-Oriented Chemical Engineering Nanjing Tech University Jiangsu Engineering Technology Research Center of Environmental Cleaning Material School of Environmental Science and EngineeringNanjing University of Information Science and Technology Department of Aerospace and Mechanical Engineering the University of Arizona College of Material Science and Engineering Nanjing Tech University

Zr-doped-TiO2 loaded glass fiber（ZT/GF） composite photocatalysts with different Zr/Ti ratios were prepared with a sol–gel process. Zr4＋can replace Ti4＋in the TiO2 lattice, which is conducive to forming the anatase phase and reducing the calcination temperature. The glass fiber carrier was responsible for better dispersion and loading of Zr-doped-TiO2 particles, improving the applicability of the Zr-doped-TiO2. The ZT/GF photocatalysts were characterized by X-ray diffraction（XRD）, scanning electron microscope（SEM）, Fourier transform infrared spectroscopy（FT-IR）, ultraviolet–visible spectroscopy（UV–vis） and Barrett–Joyner–Halenda（BJH）. The performance of photocatalysts with different loading was evaluated in formaldehyde degradation under visible light at room temperature. ZT/GF0.2exhibited the highest activity, with a formaldehyde removal rate as high as 95.14% being observed, which is better than that of the photocatalyst particles alone. The stability of the catalyst was also tested, and ZT/GF exhibited excellent catalytic performance with 94.38%removal efficiency, even after seven uses.

关键词： TiO2 Zr Photocatalyst Formaldehyde Glass fiber

Effect of Na^(+)on catalytic performance of CoCe/ZSM-5 catalysts for oxidation of toluene

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Journal of Rare Earths 2021年第4期39卷 409-418页

作者： Qingping Zou Mingqing Liu Mengjie Fan Yaping Ding Yingwen Chen shubao shen College of Biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjing 210009China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China

A CoCe/ZSM-5 catalyst was prepared by ultrasonic-assisted impregnation for the catalytic combustion of toluene.To study the effect of Na+on catalytic performance of CoCe/ZSM-5 catalysts,a series of different Si/Al ZSM-5 zeolites and catalysts doped with Na were synthesized.The experimental results show that 0.71 wt%Na+can inhibit active growth,generate more active small crystal grains,and promote improvement of the catalytic activity by the grain boundary segregation block mechanism,and the catalyst with 0.71 wt%of Na shows toluene conversion of 90 vol%at 250℃.Over 0.71 wt%of Na+content will neutralize the acid centre of the catalyst,lowering the specific surface area of the catalyst and resulting in a gradual decrease in the catalytic activity.

关键词： ZSM-5 zeolite Catalytic combustion Toluene Grain boundary segregation block mechanism Rare earths

Effect of coating modification of cordierite carrier on catalytic performance of supported NiMnO_3 catalysts for VOCs combustion

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Journal of Rare Earths 2018年第3期36卷 265-272页

作者： Lei Deng Chao Huang Jiawei Kan Bing Li Yingwen Chen Shemin Zhu shubao shen State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Nanjing University of Information Science&TechnologyJiangsu Engineering Technology Research Center of Environmental Cleaning Materials (ECM) College of Materials Science and Engineering Nanjing Tech University

NiMnO3 perovskite catalysts supported on cordierite modified by CexZr（1-x）O2 coatings were prepared using impregnation and sol-gel methods for catalytic combustion of single/double component VOCs at different concentrations and GHSV of 15,000 h^（-1）, which were characterized by BET, XRD, SEM, FT-IR, H2-TPR and O2-TPD. After coating modification, the specific surface area of catalysts is improved obviously.Among the catalysts, the Ce（0.75）Zr（0.25）O2 coating modified NiMnO3 catalyst exhibits the best catalytic activity for VOCs combustion with 95.6% conversion at 275 ℃ and has stable activity when catalyst is embalmed at 800 ℃. In addition, the catalyst also presents the excellent water-resistant and conversion stability over time-on-stream condition. The reason is that Ce（0.75）Zr（0.25）O2 coating can promote more lattice distortion and defects and smaller crystal size, which improve oxygen transfer capability and dispersion of active component.

关键词： Catalytic combustion VOCs Coating modification NiMnO3 catalyst lattice distortion and defects Oxygen transfer capability

Promotional effect of phosphorylation on CeSn_(0.8)W_(0.6)O_x/TiAl_(0.2)Si_(0.1)O_y for NH_3-SCR of NO from marine diesel exhaust

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Journal of Rare Earths 2016年第10期34卷 1010-1016页

作者：韩冰沈岳松祝社民刘优林沈树宝 Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 China College of Life and Pharmaceutical Engineering Nanjing Tech University Nanjing 210009 China

A series of phosphorylation and blank CeSn_（0.8）W_（0.6）O_x/TiAl_（0.2）Si_（0.1）O_y catalysts prepared by extrusion molding were tested for NH_3-SCR of NO, and were characterized by techniques of X-ray diffraction（XRD）, Brumauer-Emmett-Teller（N_2-BET）, environmental scanning electron microscope（ESEM）, temperature programmed reduction（H_2-TPR） and temperature programmed desorption（NH_3-TPD）. Effects of phosphorylation on catalytic activity and sulfur-resisting performance of the CeSn_（0.8）W_（0.6）O_x/TiAl_（0.2）Si_（0.1）O_y for NH_3-SCR of NO were mainly studied. Results showed that the phosphorylation improved the catalytic activity and sulfur-resisting performance in an active temperature window of 300–440 °C, and the phosphorylation catalyst with 0.4 wt.% H_3PO_4 exhibited the best catalytic performance and the strongest sulfur-resisting performance. Analysis showed that the phosphorylation increased specific surface area, enhanced the surface acidity and improved redox properties.

关键词： CeSn_（0.8）W_（0.6）O_x/TiAl_（0.2）Si_（0.1）O_y phosphorylation diesel engine exhaust sulfur-resisting NH_3-SCR NO conversion rare earths

Ag-induced Efficient Immobilization of Papain on Silica Spheres

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Chinese Journal of Chemical Engineering 2008年第4期16卷 612-619页

作者：王安明王华周成杜志强祝社民沈树宝 State Key-Laboratory of Materials-Onented Chemical Engineering College of Life Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China State Key Laboratory of Materials-Oriented Chemical Engineering College of Materials Science and Engineering Nanjing University of Technology Nanjing 210009 China

在银和氨基的组之间的 Complexation 和相互作用被使用在硅石范围上导致 papain 的有效固定。在 papain 被联合到硅石范围以前，银 nanoparticles 在硅石范围上被扔。有银 nanoparticles 的硅石范围被高分辨率传播电子显微镜学(HR-TEM )... 详细信息

在银和氨基的组之间的 Complexation 和相互作用被使用在硅石范围上导致 papain 的有效固定。在 papain 被联合到硅石范围以前，银 nanoparticles 在硅石范围上被扔。有银 nanoparticles 的硅石范围被高分辨率传播电子显微镜学(HR-TEM ) 描绘， Fournier 变换红外线的光谱学(英尺红外) ，和紫外力的扫描分光计。英尺红外光谱也被用来描绘使不能调动并且免费 papain。在使不能调动的 papain 的活动的一些因素的效果被调查。联合收益和 Ag/SiO2 上的 papain 的相对活动分别地是赤裸的 SiO2 上的那些的 1.17 和 1.86 次，这被观察。在银的最佳集中，使不能调动的 papain 的观察活动在赤裸的硅石上是 2.1 次那。另外，在 Ag/SiO2 上使不能调动的 papain 的最大的特定的活动是 819.9 U 路 m g ? 1，它比免费 papain 的稍微低， 906.2 U 路 m g ? 1。使不能调动的 papain 的稳定性也被检验。结果显示银 nanoparticles 成功地导致 papain 的好固定。

关键词：二氧化硅表面银诱导木瓜蛋白酶催化

锆掺杂对Ti-Ce-Ox复合氧化物NH_3选择性催化还原NO的影响

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硅酸盐学报 2011年第6期39卷 989-994页

作者：李远沈岳松祝社民沈树宝南京工业大学材料科学与工程学院生物与制药工程学院南京210009

采用共混法制备Ti-Ce-Zr-Ox复合氧化物脱硝催化剂,主要研究Ti-Ce-Zr-Ox复合氧化物催化剂NH3选择性催化还原[selective catalytic reduction(SCR),NH3-SCR]NO的活性,重点考察锆掺杂对Ti-Ce-Ox复合氧化物催化剂NH3-SCR脱除NO的影响。用X射线衍射、氮气物理吸附、扫描电镜、能谱分析及氨气程序控温脱附等手段分别表征分析催化剂的晶型、表面积及孔分布、结构形貌、元素组成及固体酸量。结果表明:当摩尔比n(NH3):n(NO)=1:1、体积空间速率为5 000/h时,TiCe0.1Zr0.1O2.4复合氧化物的NH3-SCR脱除NO活性最高,达到92.70%,催化活性温度窗口为200～350℃;相比Ti-Ce-Ox复合氧化物,锆掺杂拓宽了催化活性温度窗口,使之向低温区偏移50℃;反应温度为300℃时,NO转化率提高了16.67%。锆掺杂可以细化催化剂晶粒,促进生成氧空位,明显提高催化剂固体酸量,使催化脱硝活性提高。

关键词：钛铈化合物复合氧化物催化剂氨选择性催化还原锆掺杂

对苯二甲酸生产废水高效生化处理的影响因素研究

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工业水处理 2005年第5期25卷 28-30页

作者：范俊沈树宝南京工业大学制药与生命科学学院江苏南京210009

采用响应曲面方法考察了时间、温度及pH值对铜绿假单胞菌(PA-18)生化处理模拟对苯二甲酸(PTA)生产废水的影响;并就微量重金属离子Co2+、Mn2+对菌体降解PTA的影响进行了研究。最终确定了PA-18菌生化处理PTA废水的优化条件。

关键词：对苯二甲酸铜绿假单胞菌响应曲面废水生化

Covalent Assembly of Penicillin Acylase in Mesoporous Silica Based on Macromolecular Crowding Theory

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Chinese Journal of Chemical Engineering 2007年第6期15卷 788-790页

作者：王安明周成王华沈树宝薛建跃欧阳平凯 College of Life Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China Department of Chemistry Chaohu College Chaohu 238000 China

改进青霉素 acylase (PA ) 的共有原子价固定，宏分子的拥挤理论被用于它的固定。到硅石的酶的集体比率的影响，以及，有在装配 PA 的活动的 glutaraldehyde 的激活时间，被学习。在中央毛孔，酶的固定上的β - 出租机动三轮车糊精(β -... 详细信息

改进青霉素 acylase (PA ) 的共有原子价固定，宏分子的拥挤理论被用于它的固定。到硅石的酶的集体比率的影响，以及，有在装配 PA 的活动的 glutaraldehyde 的激活时间，被学习。在中央毛孔，酶的固定上的β - 出租机动三轮车糊精(β - CD ) 的效果也被调查。当青霉素 acylase 在中央毛孔 covalently 集合了时，分别地，联合收益和相对活动到达了 99.5% 和 92.3% ，是显著的。这里的结果显示拥挤的那个模仿的大分子能显著地改善 covalently 使不能调动的 PA 的表演。

关键词：酶固定化青霉素酰基转移酶 β-环糊精高分子聚合理论