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| 1 | Advances in studying interactions between aerosols and monsoon in China显示文摘Scientific issues relevant to interactions between aerosols and the Asian monsoon climate were discussed and evaluated at the 33 rd 'Forum of Science and Technology Frontiers' sponsored by the Department of Earth Sciences at the Chinese Academy of Sciences. Major results are summarized in this paper. The East Asian monsoon directly affects aerosol transport and provides a favorable background circulation for the occurrence and development of persistent fog-haze weather. Spatial features of aerosol transport and distribution are also influenced by the East Asian monsoon on seasonal, inter-annual, and decadal scales. High moisture levels in monsoon regions also affect aerosol optical and radiative properties. Observation analyses indicate that cloud physical properties and precipitation are significantly affected by aerosols in China with aerosols likely suppressing local light and moderate rainfall, and intensifying heavy rainfall in southeast coastal regions. However, the detailed mechanisms behind this pattern still need further exploration. The decadal variation in the East Asian monsoon strongly affects aerosol concentrations and their spatial patterns. The weakening monsoon circulation in recent decades has likely helped to increase regional aerosol concentrations. The substantial increase in Chinese air pollutants has likely decreased the temperature difference between land and sea, which favors intensification of the weakening monsoon circulation. Constructive suggestions regarding future studies on aerosols and monsoons were proposed in this forum and key uncertain issues were also discussed. | WU GuoXiong LI ZhanQing FU CongBin ZHANG XiaoYe ZHANG RenYi ZHANG RenHe ZHOU TianJun LI JianPing LI JianDong ZHOU DeGang WU Liang ZHOU LianTong HE Bian HUANG RongHui | 2016 | Science China Earth Sciences2016，59，1： | 16 |
| 2 | Optically pumped terahertz sources显示文摘High-power terahertz(THz) generation in the frequency range of 0.1-10 THz has been a fast-developing research area ever since the beginning of the THz boom two decades ago, enabling new technological breakthroughs in spectroscopy, communication, imaging,etc. By using optical(laser) pumping methods with near-or mid-infrared(IR) lasers, flexible and practical THz sources covering the whole THz range can be realized to overcome the shortage of electronic THz sources and now they are playing important roles in THz science and technology. This paper overviews various optically pumped THz sources, including femtosecond laser based ultrafast broadband THz generation, monochromatic widely tunable THz generation, single-mode on-chip THz source from photomixing, and the traditional powerful THz gas lasers. Full descriptions from basic principles to the latest progress are presented and their advantages and disadvantages are discussed as well. It is expected that this review gives a comprehensive reference to researchers in this area and additionally helps newcomers to quickly gain understanding of optically pumped THz sources. | ZHONG Kai SHI Wei XU DeGang LIU PengXiang WANG YuYe MEI JiaLin YAN Chao FU ShiJie YAO JianQuan | 2017 | Science China(Technological Sciences)2017，60，12： | 9 |
| 3 | Photocatalytic degradation of trace-level of Microcystin-LR by nano-film of titanium dioxide显示文摘Microcystins, a group of hepatotoxin produced by cyanobacteria in eutrophic freshwater, have proven unreliable to be removed by conven-tional treatments. In this study, the photocatalytic degradation experiments of Microcystin-LR were conducted using nano-TiO2 thin film, prepared by sol- gel and dip-coating method, with low UVA intensity irradiation. Analysis results from SPE (solid-phase extraction) combined with HPLC method showed that Microcystin-LR whose initial concentration (μg/L) around that occurs naturally was easily to be re-moved by photocatalytic system. The degradation efficiency of toxin was influenced by the pH condi-tions, initial concentration and UV intensity. The maximum initial rate of photocatalytic degradation occurred at pH 4 and over 95% of 20 μg/L Micro-cystin-LR was decomposed within 120 min under 400μW/cm2 UV illumination. The kinetic equations and parameters revealed that degradation reaction of trace level MC-LR, which was depicted by Langmuir- Hinshelwood kinetics model, was in accordance with pseudo first order kinetics process in appearance well. Under the condition of pH=6.7, irradiation inten-sity=400 μW/cm2 and initial concentration=20 μg/L, the corresponding pseudo-first-order rate constant k and half-life were determined to be 0.0157 min?1 and 44 min, respectively. During the range of 200―1000 μW/cm2, the degradation rate increases with incident intensity to the 0.82 power and the corresponding apparent quantum yield (Φapp) was found to be 5.19× 10-8 g/J approximately. | FENG Xiaogang RONG Fei FU Degang YUAN Chunwei HU Yan | 2006 | Chinese Science Bulletin2006，51，10： | 8 |
| 4 | Synthesis and enhanced visible-light responsive of C,N,S-tridoped TiO_2 hollow spheres显示文摘C,N,S-tridoped TiO2hollow spheres(labeled as C,N,S-THs) were synthesized using carbon spheres as template and C,N,S-tridoped TiO2nanoparticles as building blocks. The structure and physicochemical properties of the catalysts were characterized by Xray difraction(XRD), scanning electron microscopy(SEM), UV-Vis difuse reflectance spectrum(DRS), N2adsorption-desorption isotherms, X-ray photoelectron spectroscopy(XPS) and Photoluminescence emission spectroscopy(PL). The results showed that the hollow spheres had average diameter of about 200 nm and the shell thickness was about 20 nm. The tridoped TiO2hollow spheres exhibited strong absorption in the visible-light region. C,N,S-tridoped could narrow the band gap of the THs by mixing the orbit O 2p with C 2p, N 2p and S 3p orbits and shift its optical response from ultraviolet(UV) to the visible-light region. PL analysis indicated that the electron-hole recombination rate of TiO2hollow spheres had been efectively inhibited when doped with C, N and S elements.The photocatalytic activities of the samples were evaluated for the degradation of X-3B(Reactive Brilliant Red dye, C.I. Reactive Red2) aqueous solution under visible-light(λ > 420 nm) irradiation. It was found that the C,N,S-tridoped TiO2hollow spheres indicated higher photocatalytic activity than commercial P25 and the undoped counterpart photocatalyst. | Xiaoxia Lin Degang Fu Lingyun Hao Zhen Ding | 2013 | Journal of Environmental Sciences2013，25，10： | 4 |
| 5 | Organic/ Inorganic Occurrence of Metallic Elements of the Black Shale-Hosted Baiguoyuan Silver-Vanadium Deposit in Xingshan, Hubei显示文摘By means of kerogen purification, the proton induced X-ray emission (PIXE) and instrumental neutron activation analysis (INAA), the authors have studied the organic/inorganic occurrence modes of the metallic elements of the Baiguoyuan silver-vanadium deposit hosted in black shale in Hubei Province, China. The result shows that Au, Hg and Ta have a strong tendency to occur organically, with more than 70% of these elements being associated organically. Se, Ga, Ag and Hf are partly associated with organic matter, with more than 20% of them occurring organically. Compared with the above elements, Zn, Cu, As and Sb are weakly associated organically, and tend to be enriched in kerogen. However, Mn, Th, U, V, Co, Cr, Al, Fe and Sc usually occur inorganically. Of the rare earth elements (REE), La, Ce, Tb, Dy, Yb and Lu have stronger ability to be associated with organic matter than Sm and Eu. | ZHUANG Hanping LU Jialan FU Jiamo LIU Jinzhong REN Chigang ZOU Degang TIAN Weizhi | 1998 | Acta Geologica Sinica(English Edition)1998，72，3： | 4 |
| 6 | Enhanced photocatalytic activity of fluorine doped TiO 2 by loaded with Ag for degradation of organic pollutants显示文摘 | Xiaoxia Lin Fei Rong Degang Fu Chunwei Yuan | 2011 | Powder Technology2011，，： | 2 |
| 7 | Influential Intensity of Urban Agglomeration on Evolution of Ecoenvironmental Pressure:A Case Study of Changchun,China显示文摘In this paper,we study the interactive relationship between the agglomeration of urban elements and the evolution of eco-environmental pressure.We build an index system for evaluating the agglomeration of urban elements and eco-environmental pressure.Using the entropy method and response intensity model,we analyze how urban elements agglomeration influenced eco-environmental pressure in Changchun from 1990 to 2012,eliciting the changing features and influential factors.Ultimately,we conclude there is a significant interactive relationship between the agglomeration of urban elements and the evolution of eco-environmental pressure in Changchun.This is inferred from the degree of this agglomeration in Changchun having increased since 1990,with the degree of eco-environmental pressure first decreasing and then increasing.Alongside this,the impact of urban elements agglomeration on eco-environmental pressure has changed from negative to positive.The main reasons behind this shift are arguably the rapid growth of urban investment and ongoing urbanization. | LIU Yanjun ZHANG Jing LI Chenggu ZHOU Guolei FU Zhanhui LIU Degang | 2017 | Chinese Geographical Science2017，27，4： | 2 |
| 8 | Carbon-doped mesoporous TiO 2 film and its photocatalytic activity显示文摘 | Xiaoxia Lin Fei Rong Xiang Ji Degang Fu | 2010 | Microporous and Mesoporous Materials2010，，1： | 1 |
| 9 | Low-temperature preparation of F-doped TiO2 film and its photocatalytic activity under solar light显示文摘 | Jingjing Xu Yanhui Ao Degang Fu Chunwei Yuan | 2008 | Appl Surf Sci2008，254，： | 1 |
| 10 | Low temperature preparation of anatase TiO2-eoated activated carbon 显示文摘 | Ao Yanhui Xu JingJing Fu Degang | 2008 | Colloids and Surfaces A2008，312，： | 1 |
| 11 | A simple method to prepare N-doped titania hollow spheres with high photocatalytic activity under visible light显示文摘 | Yanhui Ao Jingjing Xu Degang Fu Chunwei Yuan | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 12 | Study on the effect of different acids on the structure and photocatalytic activity of mesoporous titania显示文摘 | Yanhui Ao Jingjing Xu Degang Fu | 2009 | Applied Surface Science2009，，1： | 1 |
| 13 | A simple method to prepare N-doped titania hollow spheres with high photocatalytic activity under visible light显示文摘 | Yanhui Ao Jingjing Xu Degang Fu Chunwei Yuan | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 14 | Preparation of bismuth oxide/titania composite particles and their photocatalytic activity to degradation of 4-chlorophenol 显示文摘 | XU Jingjing CHEN Mindong FU Degang | 2011 | Trans Nonferrous Met Soc China2011，21，： | 1 |
| 15 | Insights into the use of zin~ mannitol alkoxide as a novel thermal stabilizer for rigid poly(vinyl chloride)显示文摘 | Fu Ming Li Degang Liu Hao | 2015 | Appl Polym Sci2015，132，42： | 1 |
| 16 | Enhanced photo-catalytic activity of fluorine doped TiO2 by loaded with Ag fordegradation of organic pollutants显示文摘 | LIN Xiaoxia RONG Fei FU Degang | 2012 | Powder Technology2012，219，： | 1 |
| 17 | Far-field intensity distribution of beam generated by Gaussian mirror resonator显示文摘 | XiaoYong Fu Youwei Tian | 2005 | Optics Communications2005，248，： | 1 |
| 18 | Covalently immohilized hiosensor based on gold nanoparticles modified TiO2 nanotube arrays显示文摘 | Zhang Zhijuan Xie Yibing Fu Degang | | 0，，： | 1 |
| 19 | Photoelectrochemical property and photocatalytic activity of N-doped TiO 2 nanotube arrays显示文摘 | Jingjing Xu Yanhui Ao Mindong Chen Degang Fu | 2010 | Applied Surface Science2010，，13： | 1 |
| 20 | Preparation of bismuth oxide /titania composite particles and their photocatalytie activity to degradation of 4-chlorophenol 显示文摘 | XU Jingjing CHEN Mindong FU Degang | 2011 | Trans Nonferrous Met Soc China2011，，21： | 1 |
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