碳氢化合物选择性催化还原(HC-SCR)NOx研究
氨选择性催化还原(NH3-SCR) NOx研究
柴油车污染排放控制应用研究
室内空气催化净化
非均相大气化学
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室内空气催化净化

一.常温催化净化甲醛研究  

    室内空气质量与人体健康状况息息相关,50%以上的疾病与室内空气污染有关;室内空气污染问题已引起政府和公众越来越多的关注,有效控制室内空气污染具有重要意义。针对室内甲醛净化,研制了室温催化氧化甲醛的系列贵金属催化剂,发现了碱金属对贵金属催化剂常温催化氧化甲醛的助催化作用,揭示了其助催化机制,并研制开发了新型室内空气净化器。

 

1.室温催化氧化甲醛Pt/TiO2基催化剂

   

    研制出了可室温催化氧化甲醛的Pt/TiO2催化剂,该催化剂不需要任何外加能量,常温常压下就能将甲醛完全催化分解为H2OCO2,无副产物产生,且具有良好的耐久性。与传统甲醛氧化催化剂和甲醛氧化剂相比,这种Pt/TiO2催化剂在国际上首次实现了甲醛气体的室温催化氧化。阐明了Pt的高度分散是Pt/TiO2催化剂具有室温高效催化氧化甲醛特性的关键因素,并明确了贵金属催化剂室温催化氧化甲醛的反应机理。(Catal. Commun., 2005, 6:211-214, Appl. Catal. B,2006,65: 37-43, Catal. Today, 2007 ,126: 345-350)

2.碱金属显著促进Pt/TiO2催化剂性能

    发现了碱金属对Pt/TiO2室温催化氧化甲醛活性显著的助催化作用,在苛刻的反应条件下,Pt/TiO2室温下甲醛的转化率仅为20%,而含碱金属-Pt/TiO2催化剂室温对甲醛的转化率为100%。揭示了该助促进作用是碱金属添加促进了Pt在载体表面的原子级分散,并开启了室温催化氧化甲醛的新途径。( Angew. Chem. Int. Ed.2012: 51, 38: 9628-9632

3.碱金属助催化作用的普适性

   

    发现碱金属添加也能显著促进PdTiO2载体表面的分散,且使带部分负电荷的Pd更稳定存在于载体表面,进而促进了催化剂对氧气和水的活化,因此显著提高了Pd基催化剂室温催化氧化甲醛性能,从而证实碱金属对贵金属催化剂的助催化作用具有一定的普适性。(Environ. Sci. Technol., 2014, 48: 5816-5822)


4.常温催化净化甲醛技术产业化

   

   实现了常温催化净化甲醛技术的产业化应 用,设计组建了室内甲醛催化净化功能组件和空气净化器。该新型甲醛空气净化器具有高效、耗能低、安全、使用寿命长以及没有二次污染等优势,各项指标均优于传统净化技术的空气净化器,新技术空气净化器已经取得了较好的经济和社会效益。


 

二.室内空气净化-苯系物、微生物和氨气催化净化研究

      

        除甲醛之外,室内空气中的其他污染物主要苯系物、微生物和氨气,我们研制了系列低温催化氧化苯系物催化材料,并基于此建立了吸附-催化和低温等离子体-催化协同去除苯系物方法;同时研制了系列Ag基室温催化杀菌催化剂,明确了其催化杀菌机理;另外,研制了系列性能优异的室温光催化氧化氨气催化材料,并探讨了其高活性机制。

 

1.室内苯系物吸附-催化净化

      

        采用纳米刻蚀原位合成了具有低温催化氧化苯系物性能的具有三维介孔结构的高分散Pd/Co3O4催化剂;研制出同时具有吸附和低温催化氧化苯系物活性的Pd基催化剂;利用Pd/AC催化剂优异的吸附和催化苯系物性能,建立了一种常温吸附-高温原位催化氧化协同去除苯系物的方法,此方法将传统去除低浓度VOCs的方法吸附-脱附-氧化简化为吸附-原位氧化过程。(Catal. Today, 2015, 242; 294; Appl. Catal. B, 2013, 72: 142-143; J. Environ. Sci., 2013, 25(6):1206; J. Environ. Sci., 2009, 21: 985; Catal. Today, 2008, 139: 15)


 

2.非热等离子体-催化协同去除苯系物

 

采用不同锰前躯体制备了系列Mn/γ-Al2O3催化剂,与单一非热等离子体相比,添加催化剂大大提高了苯系物的转化率,有效降低了副产物(NOxO3)的生成。研究发现醋酸锰制备的催化剂(Mn/Al2O3-MA)催化氧化苯系物活性最高。使用6 wt% Mn/Al2O3催化剂时得到最高的邻二甲苯的转化率。XRDXPS结果表明二氧化锰微晶相,高Mn4+含量和丰富的晶格氧有利于催化活性的提高。(Chem. Eng. J., 2016, 288: 406-413)


3.催化杀菌消毒

   研制出了一系列不同晶型、不同形貌的具有优异杀菌活性的载银催化剂。这些催化剂通过活化氧产生具有高氧化性的活性氧物种(ROS),同时结合溶出的银离子的毒性作用,可以引起细胞内活性氧的产生、细胞的破损乃至死亡。红外测量结果显示杀菌过程有CO2生成,证实了ROS参与的催化氧化杀菌过程。(Environ. Sci. Technol., 2008, 42: 1699-1704; Langmuir, 2007, 23: 11197-11199; J. Inorg. Biochem., 2014,135: 45-53;  J. Inorg. Biochem., 2007, 101: 817-823; J. Inorg. Biochem., 2008, 102: 1736-1742;  Catal. Commun., 2004, 5(3): 170-172;  J. Appl. Microbiol., 2014, 116:1106-1118; J. Environ. Sci., 2016, 41: 112-120)

4.室内氨气光催化氧化研究

研制了系列性能优异的光催化氧化氨气催化剂,制备了不同温度焙烧的TiO2催化剂,发现400oC焙烧的催化剂具有最优的光催化氨气性能,揭示了针对氨气的光催化分解,表面酸性是影响催化剂性能的重要因素;水热合成法制备了表面氟化的高比例暴露活性(001)晶面的TiO2催化剂,发现表面氟改性及其引起的活性(001)晶面的高暴露共同作用使F-TiO2催化剂具有优异的光催化净化氨气性能,但表面氟化起主要促进作用。(Appl. Catal. B, 2014, 82:152-153; J. Environ. Sci., 2014, 26: 673)

相关论文:

36 .Lian Wang, Changbin Zhang*, Hong He, Fudong Liu, and Caixia Wang, “Effect of doping metals on OMS-2/- Al2O3 catalysts for plasma catalytic removal of o-Xylene”, J. Phys. Chem. C, 120, (2016), 6136-6144.

35. Yaobin Li, Changbin Zhang, Hong He*, Jianghao Zhang, Min Chen, “Influence of alkali metals on Pd/TiO2 catalysts for catalytic oxidation of formaldehyde at

34. Lian Wang, Hong He*, Changbin Zhang, Li Sun, Sijin Liu, Shaoxin Wang, “Antimicrobial activity of silver loaded MnO2 nanomaterials with different crystal phases against Escherichia coli”, J. Environ. Sci., 41, (2016) 112-120.

33. Lian Wang, Hong He*, Changbin Zhang, Yafei Wang, Bo Zhang, “Effects of precursors for manganese-loaded -Al2O3 catalysts on plasma-catalytic removal of o-xylene”, Chem. Eng. J., 288, (2016) 406-413.

32. Jianghao Zhang, Yaobin Li, Yan Zhang, Min Chen, Lian Wang, Changbin Zhang*, Hong He, “Effect of support on the activity of Ag-based catalysts forformaldehyde oxidation”, Sci. Rep., 5, (2015) 12950.

31. Jianghao Zhang, Yaobin Li, Lian Wang, Changbin Zhang*, Hong He,     “Catalytic oxidation of formaldehyde over manganese oxides with different      crystal structures”, Catal. Sci. Technol., 5, (2015) 2305-2313.

30. Jie Zhang, Changbin Zhang, Hong He*,“Remarkable promotion effect of trace sulfation on OMS-2nanorod catalysts for the catalytic combustion of ethanol ”, J. Environ. Sci., 35, (2015) 69-75.

29. 张洁,张江浩,张长斌,贺泓*,不同晶相结构二氧化锰催化完全氧化乙醇物理化学学报31(2), (2015) 353-359.

28. Yafei Wang, Changbin Zhang, Yunbo Yu, Renliang Yue, Hong He*, “Ordered mesoporous and bulk Co3O4 supported Pd catalysts for catalytic oxidation of o-xylene”, Catal. Today, 242, (2015) 294-299.

27. Lian Wang, Hong He*, Yunbo Yu, Li Sun, Sijin Liu, Changbin Zhang, Lian He,“Morphology-dependent bactericidal activities of Ag/CeO2 catalysts against Escherichia coli”, J. Inorg. Biochem., 135, (2014) 45-53.

26. Lian Wang, Hong He*, Changbin Zhang, Li Sun, Sijin Liu, Renliang Rue,“ Excellent antimicrobial properties of silver-loaded mesoporous silica SBA-15”, J. Appl. Microbiol., 116, (2014) 1106-1118.

25. Changbin Zhang, Yaobin Li, Yafei Wang, Hong He*, “Sodium-promoted Pd/TiO2 for catalytic oxidation of formaldehyde at ambient temperature”, Environ. Sci. Technol., 48, (2014) 5816-5822.

24. Hongmin Wu, Jinzhu Ma, Changbin Zhang*, Hong He, “Effect of TiO2 calcination temperature on the photocatalytic oxidation of gaseous NH3”, J. Environ. Sci., 26, (2014) 673-682.

23. Hongmin Wu, Jinzhu Ma, Yaobin Li, Changbin Zhang*, Hong He, “Photocatalytic oxidation of gaseous ammonia over fluorinated TiO2 with exposed (001) facets”,Appl.Catal. B., 152-153, (2014) 82-87.

22. Yafei Wang, Changbin Zhang, Fudong Liu, Hong He*, “Well-dispersed palladium supported on ordered mesoporous Co3O4 for catalytic oxidation of o-xylene”,Appl.Catal. B., 142-143, (2013) 72-79.

21. Shaoyong Huang, Changbin Zhang*, Hong He, “Effect of pretreatment on Pd/Al2O3 catalyst for catalytic oxidation of o-xylene at low temperature”, J. Environ. Sci., 25, (2013) 1206-1212.

20. Changbin Zhang, Huayu Wang, Fudong Liu, Lian Wang, Hong He*, “Magnetic core–shell Fe3O4@C-SO3H nanoparticle catalyst for hydrolysis of cellulose”, Cellulose, 20,(2013) 127-134.

19. Changbin Zhang, Fudong Liu, Yanping Zhai, Hiroko Ariga, Nan Yi, Yongchun Liu, Kiyotaka Asakura, Maria Flytzani-Stephanopoulos,* Hong He*, Alkali-metal-promoted Pt/TiO2 opens a more efficient pathway to formaldehyde oxidation at ambient temperatures”,Angew. Chem. Int. Ed., 51, (2012) 9628-9632.

18. 张丽,刘福东*,余运波,刘永春,张长斌,贺泓*,“CeO2添加对Ag/Al2O3催化剂低温氨氧化性的影响”, 催化学报, 32, (2011) 727-735.

17. Li Zhang, Hong He*,Mechanism of selective catalytic oxidation of ammonia to nitrogen over Ag/Al2O3, J. Catal., 268, (2009) 18-25.

16. Shaoyong Huang, Changbin Zhang, Hong He*,In situ adsorption-catalysis system for the removal of o-xylene over an activated carbon supported Pd catalyst”, J. Environ. Sci., 21, (2009) 985-990.

15. 张长斌,贺泓*王莲,姜风,刑焕,赵倩,暴伟,负载型贵金属催化剂用于室温催化氧化甲醛和室内空气净化科学通报,54(3), (2009) 278-286.

14. Li Zhang, Changbin Zhang, Hong He*, “The role of silver species in Ag/Al2O3 catalysts for the selective catalytic oxidation of ammonia to nitrogen”, J. Catal., 261, (2009) 101-109.

13.黄韶勇, 张长斌,贺泓*,“Pd/AC催化剂制备及其催化完全氧化邻-二甲苯性能”, 工业催化,16, (2008) 38-45.

12. Shaoyong Huang, Changbin Zhang, Hong He*, “Complete oxidation of o-xylene over Pd/Al2O3 catalyst at low temperature”, Catal. Today, 139, (2008)15-23.

11.Qingyun Chang, Hong He*, Zichuan Ma, “Efficient disinfection of Escherichia coli in water by silver loaded alumina”, J. Inorg. Biochem., 102, (2008) 1736-1742.

10. 常青云, 贺泓*, 曲久辉, 赵进才, “Ag-Ce/AlPO4水中催化杀菌影响因素研究”, 催化学报,29, (2008) 215-220.

9.Qingyun Chang, Hong He*, Jincai Zhao, Min Yang, Jiuhui Qu, “Bactericidal activity of a Ce-promoted Ag/AlPO4 catalyst using molecular oxygen in water”, Environ. Sci. Technol., 42, (2008) 1699-1704.

8. Qingyun Chang, Lizhu Yan, Meixue Chen, Hong He*, Jiuhui Qu,Bactericidal mechanism of Ag/Al2O3 against Escherichia coli”, Langmuir,23,(2007) 11197-11199.

7. Changbin Zhang, Hong He*, “A comparative study of TiO2 supported noble metal catalysts for the oxidation of formaldehyde at room temperature”, Catal. Today, 126, (2007) 345-350.

6. Meixue Chen, Lizhu Yan, Hong He*, Qingyun Chang, Yunbo Yu, Jiuhui Qu, “Catalytic sterilization of Escherichia coli K 12 on Ag/Al2O3 surface”, J. Inorg. Biochem., 101, (2007) 817-823.

5. Changbin Zhang, Hong He*, Shijin Shuai, Jianxin Wang, Catalytic performance of Ag/Al2O3-C2H5OH-Cu/Al2O3 system for the removal of NOx from diesel engine exhaust”, Environ. Pollut.,147, (2007) 415-421.

4. Changbin Zhang, Hong He*, Ken-ichi Tanaka, “Catalytic performance and mechanism of a Pt/TiO2 catalyst for the oxidation of formaldehyde at room temperature”, Appl. Catal.B, 65,(2006) 37-43.

3. 闫丽珠, 陈梅雪, 贺泓*,曲久辉, “氧化铝负载银催化剂的杀菌作用”, 催化学报,26(12), (2005) 1122-1126.

2.  Changbin Zhang, Xiaoyan Shi, Hongwei Gao, Hong He*, “The elimination of formaldehyde over Cu-Al2O3 at room temperature”, J. Environ. Sci., 17, (2005) 429-432.

1. Changbin Zhang, Hong He*, Ken-ichi Tanaka, “Perfect catalytic oxidationofformaldehyde over a Pt/TiO2 catalyst at room temperature”, Catal. Commun.,6, (2005) 211-214.

 
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