Dr. Pengyi Zhang began to work in the Department of Environmental Science and Engineering of Tsinghua after he graduated from Tsinghua University in Nov. 1998. Now he is the member of the scholarship committee of the Department, and the director of the Division of Environmental Chemistry. In 2004, He was selected into the Scientific New Star Program by the Beijing Science and Technology Committee, and Program for New Century Excellent Talents in University by the Ministry of Education. He mainly does research work in the field of environmental chemistry and materials, focusing on advanced oxidation processes (AOPs) for water and indoor air purification, degradation of persistent organic pollutants like perfluorinated carboxylic acids. And he has published over 100 papers in the scientific journals and applied over 10 patents.
Since 2000, Dr. Zhang has undertaken over 10 scientific research projects, including two projects from the National High-Tech Program, four projects from the National Natural Science Foundation of China (NSFC), and some international projects.
He has more than 10 years’ experience in the field of advanced oxidation processes for treatment of refractory organic compounds such as POPs. During 2002-2005, he was supported by the Ministry of Science and Technology, and he made efforts on the enhanced photocatalysis technology and related equipment. And since 2006, he got the financial support from the Natural Science Foundation of China (NSFC), starting the investigation on the photochemical degradation of perfluorinated carboxylic acids- a new type of persistent organic pollutants widely found in the environment. The major achievements in recent years he has made include:
(1) Developed a long lifetime photocatalyst coated on the titanium plate, and elucidated the deactivation mechanism of the supported photocatalyst.
(2) Developed some enhanced-photocatalysis methods such as ozone-enhanced photocatalysis and vacuum ultraviolet photocatalysis, by which pollutants degradation rates increased up to one order.
(3) Developed some methods to effectively defluorinate and decompose perfluorinated carboxylic acids, which widely occurred in the world and bioaccumulated.
(4) Developed various AOPs-biological activated carbon (BAC) processes, which significantly increase the removal efficiency and economical feasibility of AOPs. These processes have the wide potential applications in drinking water treatment and specific pollutants removal.
(5) Developed equipment based on the ozone-enhanced photocatalysis process, which can be used for wastewater and drinking water treatment.
Published Articles:
1. Zhang Pengyi, Liang Fuyan, Yu Gang, Chen Qing, Zhu Wanpeng. A comparative study on decomposition of gaseous toluene by O3/UV, TiO2/UV and O3/TiO2/UV. Journal of Photochemistry and Photobiology A: Chemistry, 2003, 156 (1-3): 189-194
2. Laisheng Li, Wanpeng Zhu, Pengyi Zhang, Zhongyin Chen, Wenya Han. Photocatalytic oxidation and ozonation of catechol over carbon-black-modified nano-TiO2 thin films supported on Al sheet. Water Research 2003, 37(15):3646-3651
3. Chen Songzhe, Zhang Pengyi, Zhu Wanpeng, Zhuang Daming. Nitrogen States and Photocatalytic Activity of Nitrogen Doped TiO2 Films Prepared by Reactive Magnetron Sputtering. Chinese Journal of Catalysis. 2004, 25(7): 515-517
4. Pengyi Zhang, Juan Liu. Photocatalytic degradation of trace hexane in the gas phase with and without ozone addition: kinetic study. Journal of Photochemistry and Photobiology A: Chemistry, 2004, 167(2-3): 87-94
5. Pengyi Zhang, Juan Liu and Zhongliang Zhang. VUV photocatalytic degradation of toluene in the gas phase. Chemistry Letters. 2004, 33(10): 1242-1243
6. Wenya Han, Pengyi Zhang, Wanpeng Zhu, Jingjing Yin, Laisheng Li. Photocatalysis of p-chlorobenzoic acid in aqueous solution under irradiation of 254nm and 185nm UV light. Water Research, 2004, 38(19): 4197-4203
7. Song-Zhe Chen, Peng-Yi Zhang, Da-Ming Zhuang, Wan-Peng Zhu. Investigation of Nitrogen Doped TiO2 Photocatalytic Films Prepared by Reactive Magnetron Sputtering. Catalysis Communications. 2004, 5:677-680
8. Han Wenya, Zhu Wanpeng, Zhang Pengyi, Zhang Ying, Li Laisheng. Photocatalytic degradation of phenols in aqueous solution under irradiation of 254 and 185 nm UV light. Catalysis Today, 2004, 90(3/4): 319-324
9. Gang Yu, Zhongying Chen, Zulin Zhang, Pengyi Zhang, Zhanpeng Jiang. The photocatalytic activity and stability of a nanosized TiO2 film prepared by carbon black modified method. Catalysis Today, 2004, 90(3/4): 305-312
10. Laisheng Li, Pengyi Zhang, Wanpeng Zhu, Wenya Han, Zuling Zhang. Comparison of O3-BAC, UV/O3-BAC and TiO2/UV/O3-BAC processes for removing organic matters in secondary effluents. Journal of Photochemistry and Photobiology A: Chemistry. 2005, 171(2): 145-151
11. Laisheng Li, Wanpeng Zhu, Le Chen, Pengyi Zhang, Zhongyin Chen. Photocatalytic ozonation of dibutyl phthalate over TiO2 film. Journal of Photochemistry and Photobiology A: Chemistry 175 (2005) 172–177
12. P Zhang, L Jian. Ozone-enhanced photocatalytic degradation of natural organic matter in water. Water Science & Technology: Water Supply, 2006, 6(3): 53-61
13. Jing Chen, Pengyi Zhang, Li Zhang. Photocatalytic decomposition of environmentally persistent perfluorooctanoic acid. Chemistry Letters 2006, 35(2): 230-231
14. Song-Zhe Chen, Peng-Yi Zhang, Wan-Peng Zhu, Le Chen, Sheng-Ming Xu. Deactivation of TiO2 photocatalytic films loaded on aluminium: XPS and AFM analyses. Applied Surface Science. 2006, 252(20):7532-7538
15. J Chen, P Zhang. Photodegradation of perfluorooctanoic acid in water under irradiation of 254 nm and 185 nm light by use of persulfate. Waster Science & Technology, 2006, 54(11-12):317-325
16. Laisheng Li, Wanpeng Zhu, Pengyi Zhang, Zulin Zhang, Honghai Wu, Wenya Han. Comparison of AC/O3–BAC and O3–BAC processes for removing organic pollutants in secondary effluent. Chemosphere. 2006, 62 (9): 1514-1522
17. Li LS, Zhu WP, Zhang PY, Zhang QY, Zhang ZL. TiO2/UV/O-3-BAC processes for removing refractory and hazardous pollutants in raw water. Journal of hazardous materials, 2006 128 (2-3): 145-149
18. Li Laisheng, Zhu Wanpeng,Zhang Pengyi, Zhang QY, Zhang Zulin. AC/O3-BAC processes for removing refractory and hazardous pollutants in raw water. Journal of hazardous materials,135 (1-3): 129-133, 2006
19. Jing Chen, Pengyi Zhang, Jian Liu. Photodegradation of perfluorooctanoic acid by 185 nm vacuum ultraviolet light.Journal of Environmental Sciences-China. 2007, 19(4):387-390
20. Laisheng Li, Wanpeng Zhu, Pengyi Zhang, Ping Lu, Qiuyun Zhang, Zulin Zhang. UV/O3-BAC process for removing organic pollutants in secondary effluents. Desalination, 2007, 207(1-3):114–124
21. Zhang Li, Zhang Pengyi, Chen Songzhe. Influence of pretreatment of titanium substrate on long-term stability of TiO2 film. Chinese Journal of Catalysis. 2007, 28(4):299-306
22. Shaoyong Lu, Gang Yu, Pengyi Zhang, Wanpeng Zhu, Meng Gui, Changsheng Xiang. Agricultural runoff contaminant discharge in Dianchi valley agricultural district of China. International Journal of Environment and Pollution, 2007, 31(3/4):394-414.
23. Yuan Wang, Pengyi Zhang Gang Pan, Hao Chen. Photochemical degradation of environmentally persistent perfluorooctanoic acid (PFOA) in the presence of Fe (III). Chinese Chemical Letters, 2008, 19:371-374
24. Yuan Wang, Pengyi Zhang Gang Pan, Hao Chen. Ferric ion mediated photochemical decomposition of perfluorooctanoic acid (PFOA) by 254nm UV light. Journal of Hazardous Materials. 2008, 160(1):181-186
25. Shaoyong Lu, Pengyi Zhang, Xiangcan Jin, Changsheng Xiang, Meng Gui, Jian Zhang, Fengmin Li. Nitrogen Removal from Agricultural Runoff by Full Scale Constructed Wetland in China. Hydrobiologia, 2009, 621(1): 115-126
26. Baoxiu Zhao, Pengyi Zhang*. Photocatalytic decomposition of perfluorooctanoic acid with β-Ga2O3 wide bandgap photocatalyst. Catalysis Communications, 2009, 10(8):1184-1187
27. S.Y. Lu, F C Wu, Y F Lu, C S Xiang, P Y Zhang, C X Jin. Phosphorus removal from agricultural runoff by constructed wetland. Ecological Engineering. 2009, 35(3):402-409
28. Pengyi Zhang*, Bo Zhang, Rui Shi. Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon. Frontiers of Environmental Science and Engineering in China. 2009, 3(3):281-288
29. Fu Pingfeng, Zhang Pengyi*. Uniform dispersion of Au nanoparticles on TiO2 film via electrostatic self-assembly for photocatalytic degradation of bisphenol A. Applied Catalysis B: Environmental 2010, 96(1-2):176-184
30. 王媛, 张彭义*. 无机阴离子、异丙醇及TiO2对Fe3+诱导全氟辛酸光化学降解影响的研究. 化学学报, 2010, 68(4) :345-350
