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| 1 | Long-term monitoring and source apportionment of PM_(2.5)/PM_(10) in Beijing,China显示文摘During 2001-2006,PM2.5 (particle matter with aerodynamic diameter less than 2.5 microns) and PM10 (particle matter with aerodynamic diameter less than 10 microns) were collected at the Beijng Normal University (BNU) site,China,and in 2006,at a background site in Duolun (DL).The long-term monitoring data of elements,ions,and black carbon showed that the major constituents of PM2.5 were black carbon (BC) crustal elements,nitrates,ammonium salts,and sulfates.These five major components accounted for 20%-80% of the total PM2.5.During this period,levels of Pb and S in PM remained rather high,as compared with the levels in other large cities in the world.Source apportionment results suggest that there were 6 common sources for PM2.5 and PM10,i.e.,soil dust,vehicular emission,coal combustion,secondary aerosol,industrial emission,and biomass burning.Coal combustion was the largest contributor of PM2.5 with a percentage of 16.6%,whereas soil dust played the most important role in PM10 with a percentage of 27%.In contrast,only three common types of sources could be resolved at the background DL site,namely,soil dust,biomass combustion,and secondary aerosol from combustion sources. | Hailin WANG Zhengping HAO | 2008 | Journal of Environmental Sciences2008，20，11： | 65 |
| 2 | Characterization and assessment of volatile organic compounds (VOCs) emissions from typical industries显示文摘VOCs play an increasingly important role in affecting air quality and threatening human health in China in recent years,where industry activities show a significant contribution to VOCs emission.In this article we report our long term study of industrial VOCs emissions of six major industries (vehicle manufacturing,printing,equipment coating,electronic manufacturing,furniture manufacturing and bio-pharming) on the aspects of emission characteristics,environmental impact and health risk assessment,and control challenge analysis with the purpose to obtain in-depth understanding of industry VOCs emissions and offer some original basements for national control and management of industry VOCs emissions.This study shows that all these industries give middle or low emission with total VOCs concentration less than 1000 mg/m3 at each exhaust pipe.Benzenes,esters,alcohols,ketones,alkanes,chloroalkanes and alkenes were detected as the major emission components and the most frequently monitored VOCs were benzenes,which varied obviously with different processes and industries.The environmental impact assessments indicate that vehicle manufacturing and benzenes should be prior controlled with the purpose to reduce air pollution.While,health risk assessments suggest that furniture manufacturing and chloroalkanes should be firstly controlled.Control analysis indicates that developing technologies with low cost and high efficiency and establishing and completing specific industry emission standards/regulations are the two key issues in VOCs emission management at present stage. | WANG HaiLin NIE Lie LI Jing WANG YuFei WANG Gang WANG JunHui HAO ZhengPing | 2013 | Science China(Technological Sciences)2013，56，3： | 60 |
| 3 | Source apportionment for urban PM_(10) and PM_(2.5) in the Beijing area显示文摘Airborne particulate matter (PM2.5 and PM10) samples were collected at the Beijing Normal University sampling site in the urban area of Beijing, China in dry and wet seasons during 2001―2004. Concen-trations of 23 elements and 14 ions in particulate samples were determined by ICP-AES and IC, re-spectively. Source apportionment results derived from both Positive Matrix Factorization (PMF) and Chemical Mass Balance (CMB) models indicate that the major contributors of PM2.5 and PM10 in Beijing are: soil dust, fossil fuel combustion, vehicle exhausts, secondary particulate, biomass burning and some industrial sources. We have identified both regional common sources, such as vehicular emis-sions, particulate of secondary origin and biomass burning, as well as country-specific problems, such as sand storms and soil dust that should be addressed for effective air quality control. | ZHANG Wei GUO JingHua SUN YeLe YUAN Hui ZHUANG GuoShun ZHUANG YaHui HAO ZhengPing | 2007 | Chinese Science Bulletin2007，52，5： | 22 |
| 4 | Adsorption of benzene, cyclohexane and hexane on ordered mesoporous carbon显示文摘Ordered mesoporous carbon(OMC) with high specific surface area and large pore volume was synthesized and tested for use as an adsorbent for volatile organic compound(VOC)disposal. Benzene, cyclohexane and hexane were selected as typical adsorbates due to their different molecular sizes and extensive utilization in industrial processes. In spite of their structural differences, high adsorption amounts were achieved for all three adsorbates, as the pore size of OMC is large enough for the access of these VOCs. In addition, the unusual bimodal-like pore size distribution gives the adsorbates a higher diffusion rate compared with conventional adsorbents such as activated carbon and carbon molecular sieve. Kinetic analysis suggests that the adsorption barriers mainly originated from the difficulty of VOC vapor molecules entering the pore channels of adsorbents. Therefore, its superior adsorption ability toward VOCs, together with a high diffusion rate, makes the ordered mesoporous carbon a promising potential adsorbent for VOC disposal. | Gang Wang Baojuan Dou Zhongshen Zhang Junhui Wang Haier Liu Zhengping Hao | 2015 | Journal of Environmental Sciences2015，27，4： | 15 |
| 5 | Characterization of PM_(2.5)/PM_(2.5-10) and source tracking in the juncture belt between urban and rural areas of Beijing显示文摘Coarse (PM2.5-10) and fine (PM2.5) atmospheric particulate samples were collected in summer and winter during 2005―2007 in the juncture belt between urban and rural areas of Beijing. Elements, ions, organic/elemental carbon (OC/EC) and polynuclear aromatic hydrocarbons (PAHs) were determined to obtain some latest information about the particulate pollution in the juncture belt of Beijing. Particulate matter levels at this site were high as compared with the levels at other sampling sites in Beijing. Pollution elements, secondary ions and PAHs were enriched in fine particles rather than in coarse particles. An obvious seasonal variation of the chemical composition of PM was observed. Source apportionment results showed that secondary components were the largest mass contributor of PM2.5, accounting for 28%; whereas soil-related sources were the largest contributor of PM2.5-10, explaining about 49% of the total mass. The abnormal levels of soil heavy metals at the electronic waste disassembly site in the upwind villages suggested the potential impact of such activities to the environment. | WANG HaiLin ZHOU YuMin ZHUANG YaHui WANG XiaoKe HAO ZhengPing | 2009 | Chinese Science Bulletin2009，54，14： | 11 |
| 6 | Catalytic oxidation of benzene over nanostructured porous Co_3O_4-CeO_2 composite catalysts显示文摘Mesostructured Co3O4-CeO2 composite was found to be an effective catalytic material for the complete oxidation of benzene. The Co3O4-CeO2 catalysts with different Co/Ce ratios (mol/mol) were prepared via the nanocasting method and the mesostructure was replicated from two-dimensional (2D) hexagonal SBA-15 and three-dimensional (3D) cubic KIT-6 silicas, respectively. All the obtained Co3O4-CeO2 catalysts exhibited the similar symmetry with the parent silicas and well ordered mesostructures. The Co3O4- CeO2 catalysts with 2D mesostructure showed lower catalytic activities than the corresponding 3D materials. The Co3O4-CeO2 catalyst nanocasted from KIT-6 and with the Co/Ce ratio of 16/1 possessed the best catalytic benzene oxidation activity due to larger quantities of surface hydroxyl groups and surface oxygenated species. The mesostructured Co3O4-CeO2 material thus shows great potential as a promising eco-environmental catalyst for benzene effective elimination. | Chunyan Ma Zhen Mu Chi He Peng Li Jinjun Li Zhengping Hao | 2011 | Journal of Environmental Sciences2011，23，12： | 9 |
| 7 | Removal of cobalt(II) ion from aqueous solution by chitosan–montmorillonite显示文摘Montmorillonite(MMT)modified with chitosan(CTS,molecular weight=5×104)was applied to remove heavy metal cations by using Co2+as a model ion.An increase in MMT interlayer distance observed from X-ray diffraction indicates the intercalation of CTS into MMT.Together with the results of scanning electron microscopy and Fourier transform infrared spectroscopy,it was concluded that the composite material of CTS and MMT(CTS–MMT)was prepared successfully.The mass ratio of CTS to MMT had a strong influence on the adsorption performance of CTS–MMT.The highest adsorption value of 150 mg/g was obtained over the composite material with CTS to MMT mass ratio of 0.25,which is much higher than those reported in other studies.The adsorption isotherms and kinetic results indicated that Co2+was adsorbed over CTS–MMT in a multilayer model,and the chemical sorption of Co2+was determined to be the rate-limiting step. | Hailin Wang Haoqing Tang Zhaotie Liu Xin Zhang Zhengping Hao Zhongwen Liu | 2014 | Journal of Environmental Sciences2014，26，9： | 8 |
| 8 | Synergistic effects of Cu species and acidity of Cu-ZSM-5 on catalytic performance for selective catalytic oxidation of n-butylamine显示文摘In this work, a series of Cu-ZSM-5 catalysts with different SiO2/Al2O3 ratios(25, 50, 100 and200) were synthesized and investigated in n-butylamine catalytic degradation. The n-butylamine can be completely catalytic degradation at 350 ℃ over all Cu-ZSM-5 catalysts. Moreover, Cu-ZSM-5(25) exhibited the highest selectivity to N2, exceeding 90% at 350 ℃. These samples were investigated in detail by several characterizations to illuminate the dependence of the catalytic performance on redox properties, Cu species, and acidity. The characterization results proved that the redox properties and chemisorption oxygen primarily affect n-butylamine conversion. N2 selectivity was impacted by the Bronsted acidity and the isolated Cu^2+ species. Meanwhile, the surface acid sites over Cu-ZSM-5 catalysts could influence the formation of Cu species. Furthermore, in situ diffuse reflectance infrared Fourier transform spectra was adopted to explore the reaction mechanism. The Cu-ZSM-5 catalysts are the most prospective catalysts for nitrogen-containing volatile organic compounds removal, and the results in this study could provide new insights into catalysts design for VOC catalytic oxidation. | Xin Xing Na Li Jie Cheng Yonggang Sun Zhongshen Zhang Xin Zhang Zhengping Hao | 2020 | Journal of Environmental Sciences2020，32，10： | 7 |
| 9 | Catalytic activities and mechanism of formaldehyde oxidation over gold supported on MnO2 microsphere catalysts at room temperature显示文摘有各种各样的表面结构的 MnO 2 microspheres 用热水的方法被准备,并且 Au/MnO 2 催化剂用大音阶的第五音胶化方法被综合。我们获得了三件 MnO 2 microspheres 和 Au/MnO 2 样品:与 nanoplatelets 和 nanorods 被像电线的 nanostructures,有 nanosheets 的稳固的范围,和层次空 microspheres 盖住的协调稳固的范围。我们在房间温度调查了性质和甲醛氧化的催化活动。MnO 2 的水晶的结构是影响这些样品的催化活动的主要因素,并且 -MnO2 显示出高催化的性能。优秀氧化还原作用性质为 -MnO2 的催化能力负责。支持黄金的相互作用能改变催化剂的氧化还原作用性质并且加速表面氧种类转变,它能说明 Au/MnO 2 的催化活动改进。我们也学习了中间的种类。dioxymethylene (DOM ) 和在催化剂表面上形成的甲酸盐种类被认为中介,并且最终被转变成 hydrocarbonate 和碳酸盐然后把 2 分解了成公司。在 Au/MnO 2 催化剂上的甲醛氧化的建议机制也被获得。 | Guanglong PANG Donghui WANG Yunhong ZHANG Chunyan MA Zhengping HAO | 2016 | Frontiers of Environmental Science & Engineering2016，10，3： | 5 |
| 10 | A review of whole-process control of industrial volatile organic compounds in China显示文摘Volatile organic compounds(VOCs)play an important role in the formation of ground-level ozone and secondary organic aerosol(SOA),and they have been key issues in current air pollution prevention and control in China.Considerable attention has been paid to industrial activities due to their large and relatively complex VOCs emissions.The present research aims to provide a comprehensive review on whole-process control of industrial VOCs,which mainly includes source reduction,collection enhancement and end-pipe treatments.Lower VOCs materials including water-borne ones are the keys to source substitution in industries related to coating and solvent usage,leak detection and repair(LDAR)should be regarded as an efficient means of source reduction in refining,petrochemical and other chemical industries.Several types of VOCs collection methods such as gas-collecting hoods,airtight partitions and others are discussed,and airtight collection at negative pressure yields the best collection efficiency.Current end-pipe treatments like UV oxidation,low-temperature plasma,activated carbon adsorption,combustion,biodegradation,and adsorption-combustion are discussed in detail.Finally,several recommendations are made for future advanced treatment and policy development in industrial VOCs emission control. | Hailin Wang Shumei Sun Lei Nie Zhongshen Zhang Wenpeng Li Zhengping Hao | 2023 | Journal of Environmental Sciences2023，，1： | 4 |
| 11 | Physico-chemical characterization and source tracking of black carbon at a suburban site in Beijing显示文摘Particles from ambient air and combustion sources including vehicle emission, coal combustion and biomass burning were collected and chemically pretreated with the purpose of obtaining isolated BC(black carbon) samples. TEM(transmission electron microscopy)results indicate that BC from combustion sources shows various patterns, and airborne BC appears spherical and about 50 nm in diameter with a homogeneous surface and turbostratic structure. The BET(Barrett–Emmett–Teller) results suggest that the surface areas of these BC particles fall in the range of 3–23 m2/g, with a total pore volume of 0.03–0.05 cm3/g and a mean pore diameter of 7–53 nm. The nitrogen adsorption–desorption isotherms are indicative of the accumulation mode and uniform pore size. O2-TPO(temperature programmed oxidation)profiles suggest that the airborne BC oxidation could be classified as the oxidation of amorphous carbon, which falls in the range of 406–490°C with peaks at 418, 423 and 475°C,respectively. Generally, the BC characteristics and source analysis suggest that airborne BC most likely comes from diesel vehicle emission at this site. | Hailin Wang Lei Nie Dan Liu Meiping Gao Minyan Wang Zhengping Hao | 2015 | Journal of Environmental Sciences2015，27，7： | 4 |
| 12 | Chinese expert consensus on conversion therapy for hepatocellular carcinoma(2021 edition)显示文摘Recent advances in systemic and locoregional treatments for patients with unresectable or advanced hepatocellular carcinoma(HCC)have resulted in improved response rates.This has provided an opportunity for selected patients with initially unresectable HCC to achieve adequate tumor downstaging to undergo surgical resection,a‘conversion therapy’strategy.However,conversion therapy is a new approach to the treatment of HCC and its practice and treatment protocols are still being developed.Review the evidence for conversion therapy in HCC and develop consensus statements to guide clinical practice.Evidence review:Many research centers in China have accumulated significant experience implementing HCC conversion therapy.Preliminary findings and data have shown that conversion therapy represents an important strategy to maximize the survival of selected patients with intermediate stage to advanced HCC;however,there are still many urgent clinical and scientific challenges for this therapeutic strategy and its related fields.In order to summarize and learn from past experience and review current challenges,the Chinese Expert Consensus on Conversion Therapy for Hepatocellular Carcinoma(2021 Edition)was developed based on a review of preliminary experience and clinical data from Chinese and non-Chinese studies in this field and combined with recommendations for clinical practice.Sixteen consensus statements on the implementation of conversion therapy for HCC were developed.The statements generated in this review are based on a review of clinical evidence and real clinical experience and will help guide future progress in conversion therapy for patients with HCC. | Hui-Chuan Sun Jian Zhou Zheng Wang Xiufeng Liu Qing Xie Weidong Jia Ming Zhao Xinyu Bi Gong Li Xueli Bai Yuan Ji Li Xu Xiao-Dong Zhu Dousheng Bai Yajin Chen Yongjun Chen Chaoliu Dai Rongping Guo Wenzhi Guo Chunyi Hao Tao Huang Zhiyong Huang Deyu Li Gang Li Tao Li Xiangcheng Li Guangming Li Xiao Liang Jingfeng Liu Fubao Liu Shichun Lu Zheng Lu Weifu Lv Yilei Mao Guoliang Shao Yinghong Shi Tianqiang Song Guang Tan Yunqiang Tang Kaishan Tao Chidan Wan Guangyi Wang Lu Wang Shunxiang Wang Tianfu Wen Baocai Xing Bangde Xiang Sheng Yan Dinghua Yang Guowen Yin Tao Yin Zhenyu Yin Zhengping Yu Bixiang Zhang Jialin Zhang Shuijun Zhang Ti Zhang Yamin Zhang Yubao Zhang Aibin Zhang Haitao Zhao Ledu Zhou Wu Zhang Zhenyu Zhu Shukui Qin Feng Shen Xiujun Cai Gaojun Teng Jianqiang Cai Minshan Chen Qiang Li Lianxin Liu Weilin Wang Tingbo Liang Jiahong Dong Xiaoping Chen Xuehao Wang Shusen Zheng Jia Fan 无 | 2022 | Hepatobiliary Surgery and Nutrition2022，11，2： | 4 |
| 13 | Study of DDT and its derivatives DDD, DDE adsorption and degradation over Fe-SBA-15 at low temperature显示文摘Mesoporous SBA-15 with different Fe2O3 loading were synthesized by an in-situ coating progress for removals of dichlorodiphenyl- trichloroethane (DDT) and its derivatives, i.e., 1,1-dichloro-2,2-bis-(p-chlorophenyl)ethane (DDD) and 1,1-dichloro-2,2-bis-(4-chloro -phenyl) ethane (DDE). The results from XRD (X-ray diffractometer), TEM (transmission electron microscopy) indicated that the iron could be well dispersed on SBA-15 within 6 wt.% Fe2O3 loading. Nitrogen adsorption-desorption tests indicated that the synthesized materials were characterized by ordered meso-structure, high surface area and large pore volume. DDTs were removed from aqueous media in 12-hr treatment and high removal efficiency of DDTs was achieved at over 94%. DDTs could be completely degraded at 350°C under the existence of SBA-15 with 4 wt.% Fe2O3 loading. The final degradation products of DDT were dichlorobenzophenone (DCB) and bis-(4-chloro-phenyl) methane (DDM), suggesting a complete dechlorination from trichloromethyl. | Hailin Wang Hua Tian Zhengping Hao | 2012 | Journal of Environmental Sciences2012，24，3： | 3 |
| 14 | Promotional effect of Cu additive for the selective catalytic oxidation of n-butylamine over CeZrO_(x)catalyst显示文摘The catalytic elimination of nitrogen-containing volatile organic compounds(NVOCs)still encounters bottlenecks in NO_(x)formation and low N_(2)selectivity.Here,a series of Cu-promoted Ce-Zr mixed oxide catalysts were synthesized using a simple precipitation approach,and n-butylamine was adopted as the probe pollutant to evaluate their catalytic performance.The Ce Cu_(10%)ZrO_(x)catalyst exhibited the best catalytic activity,with 100%n-butylamine conversion and 90%N_(2)selectivity at 250℃.Concurrently,this sample also displayed good water resistance.A detailed characterization of the catalyst was performed through a series of experimental studies and theoretical calculations.The addition of Cu increased the redox property and promoted the production of oxygen vacancies,all of which were favorable for the greatest nbutylamine selective catalytic oxidation performance.The changes of oxygen vacancies over Ce Cu_(10%)ZrO_(x)in reaction process were studied by in situ Raman spectra.Moreover,in situ diffuse reflectance infrared Fourier transform spectra(DRIFTs)and theoretical calculations were employed to explore the reaction mechanism of n-butylamine selective oxidation.The high activity and selectivity of this catalyst confirm the practical feasibility of the selective oxidation of n-butylamine to CO_(2)and N_(2),and the exploration of the reaction mechanism provides new insights into the further design of catalysts. | Xin Xing Ting Zhao Jie Cheng Xiaoxiao Duan Wenpeng Li Ganggang Li Zhongshen Zhang Zhengping Hao | 2022 | Chinese Chemical Letters2022，33，6： | 2 |
| 15 | Supported gold catalysts used for ozone decomposition and simultaneous elimination of ozone and carbon monoxide at ambient temperature显示文摘 | ZHENGPING HAO DAIYUN CHENG YUN GUO | 2001 | Applied Catalysis B: Environmental2001，33，： | 2 |
| 16 | Development of carbon nanofibers from aligned electrospun polyacrylonitrile nanofiber bundles and characterization of their microstructural, electrical, and mechanical properties显示文摘 | Zhengping Zhou Chuilin Lai Lifeng Zhang Yong Qian Haoqing Hou Darrell H. Reneker Hao Fong | 2009 | Polymer2009，，13： | 2 |
| 17 | The air-borne particulate pollution in Beijing—concentration, composition, distribution and sources显示文摘 | Yele Sun Guoshun Zhuang Ying Wang Lihui Han Jinghua Guo Mo Dan Wenjie Zhang Zifa Wang Zhengping Hao | 2004 | Atmospheric Environment2004，，35： | 2 |
| 18 | Comparision of China's volatile organic compound pollution management:a computable general equilibrium approach显示文摘The public health and ecological impacts of volatile organic compound(VOCs) pollution have become a serious problem in China,arousing increasing attention to emissions control.In this context,this paper analyses the effectiveness of VOC reduction policies,namely pollution charges and environmental taxes at the national and industrial sector levels.It uses a computable general equilibrium model,which connects macroeconomic variables with VOC emissions inventory,to simulate the effects of policy scenarios(with 2007 as the reference year).This paper shows that VOC emissions are reduced by 2.2% when a pollution charge equal to the average cost of engineering reduction methods-the traditional approach to regulation in China-is applied.In order to achieve a similar reduction,an 8.9% indirect tax would have to be imposed.It concludes that an environmental tax should be the preferred method of VOC regulation due to its smaller footprint on the macroeconomy.Other policies,such as subsidies,should be used as supplements. | Yufei Wang Changxin Liu Tong Wu Zhengping Hao Zheng Wang | 2016 | Chinese Journal of Population,Resources and Environment2016，16，4： | 2 |
| 19 | Adsorption–template preparation of polyanilines with different morphologies and their capacitance显示文摘 | Lijun Ren Gaini Zhang Jianfang Wang Liping Kang Zhibin Lei Zhongwen Liu Zhaotie Liu Zhengping Hao Zong–huai Liu | 2014 | Electrochimica Acta2014，，： | 2 |
| 20 | The effect of differential temperatures on the latent heat in the nucleation of CdSe quantum dots显示文摘This work studied the effect of differential temperatures on the latent heat in the nucleation of CdSe quantum dots(QDs).The result showed that,by the formula of phase change,with increasing the reaction temperature,the latent heat in the nucleation of QDs reduced.CdSe QDs with the size-dispersion from 2.7 to 3.6 nm were synthesized via oleic acid-paraffin liquid system by controlling the reaction temperature from 180 to 220℃.Synthesized QDs were characterized by UV-vis absorption spectra and X-ray diffraction(XRD).The result of UV-vis absorption spectra showed that with increasing of reaction temperature,the first absorption peak was red-shifted and the size of QD increased.The result of XRD showed that the synthesized QDs were zinc-blende structure. | Licai Hao Zhongchen Bai Shuijie Qin Zhengping Zhang | 2017 | Journal of Semiconductors2017，38，4： | 1 |
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