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| 1 | One-step synthesis of N-doped metal/biochar composite using NH_3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue显示文摘A series of new biochar-supported composite based on the combination of biochar and metallic nanoparticles(NPs)were produced through single-step pyrolysis of FeCl_3–Ti(OBu)_4 laden agar biomass under NH_3 environment.The physiochemical properties of composites were characterized thoroughly.It has found that heating temperature and N-doping through NH_3-ambiance pyrolysis significantly influence the visible-light sensitivity and bandgap energy of composites.The catalytic activities of composites were measured by degradation of Methylene Blue(MB)in the presence or absence of H_2O_2 and visible-light irradiation.Our best catalyst(N–TiO_2–Fe_3O_4-biochar)exhibits rapid and high MB removal competency(99.99%)via synergism of adsorption,photodegradation,and Fenton-like reaction.Continuous production of O_2U^-and UOH radicles performs MB degradation and mineralization,confirmed by scavenging experiments and degradation product analysis.The local trap state Ti^(3+),Fe_3O_4,and N-carbon of the catalyst acted as active sites.It has suggested that the Ti^(3+)and N-doped dense carbon layer improve charge separation and shuttle that prolonged photo-Fenton like reaction.Moreover,the catalyst is highly stable,collectible,and recyclable up to 5 cycles with high MB degradation efficiency.This work provides a new insight into the synthesis of highly visible-light sensitized biocharsupported photocatalyst through NH_3-ambiance pyrolysis of NPs-laden biomass. | Md Manik Mian Guijian Liu Balal Yousaf Biao Fu Rafay Ahmed Qumber Abbas Mehr Ahmed Mujtaba Munir Liu Ruijia | 2019 | Journal of Environmental Sciences2019，31，4： | 8 |
| 2 | Geochemical Characters of Water Coproduced with Coalbed Gas and Shallow Groundwater in Liulin Coalfield of China显示文摘To reveal the geochemical characters of water coproduced with coalbed gas and shallow groundwater,water samples were collected from 12 wells of coalbed methane and 7 wells of shallow groundwater.The pH,CODMn,fCO2,total dissolved solids(TDS),total hardness,and concentrations of metasilicic acid,sodium and kalium,calcium ion,magnesium ion,ammonium iron,bicarbonate ion,carbonate,chloride,sulfate ion,nitrate ion,fluoride,lithium,zinc,nickel,manganese,iron,boron,barium,etc.of the samples were measured.Research results showed the following:(1)Concentrations of TDS,chloride,fluoride,sodium and kalium,ammonium,iron,and barium in the water coproduced with coalbed gas exceeded the national standards of China;however,physical,chemical,and biological properties of shallow groundwater could meet the national standard.(2)The water produced from coalbed contained mainly Na–Cl·HCO3,with average TDS of 4588.5 ppm,whereas shallow groundwater contained a mixture of chemicals including Na·Mg·Ca-HCO3·SO4and Na·MgHCO3·SO4,with average TDS of 663.8 ppm.(3)In general,it was observed that bicarbonate and sodium accumulated in a reducing environment and deeper system,while depletion of hydrogen ions and dissolution of sulfate,calcium,and magnesium occurred in a redox environment and shallow system.(4)Sodium and kalium,ammonium,chloride,and bicarbonate ions were the main ions found in the study area. | YANG Mei JU Yiwen LIU Guijian TONG Li KANG Yu HOU Quanlin | 2013 | Acta Geologica Sinica(English Edition)2013，87，6： | 6 |
| 3 | Experiment of Coal Leaching and Study of the Separation of Trace Elements显示文摘Leaching is an important way of separation of trace elements from coal. Based on leaching experiments, the content of trace elements separated out from coal is related to their existing state and content in coal, the duration of leaching process, temperature of leaching liquor and its acidity and basicity. The higher the temperature of leaching liquor and the longer the leaching time, the higher the contents of separated trace elements will be. In the course of leaching, the pH values of leaching liquors change and different trace elements are affected differently by the pH values. | LIU Guijian | 2000 | Acta Geologica Sinica(English Edition)2000，74，2： | 6 |
| 4 | Analysis of HCHs and DDTs in a sediment core from the Old Yellow River Estuary, China显示文摘 | Chunnian Da Guijian Liu Zijiao Yuan | 2013 | Ecotoxicology and Environmental Safety2013，，： | 2 |
| 5 | Transformation behavior of mineral composition and trace elements during coal gangue combustion显示文摘 | Chuncai Zhou Guijian Liu Zhicao Yan Ting Fang Ruwei Wang | 2012 | Fuel2012，，： | 2 |
| 6 | Investigation on Structural and Thermodynamic Characteristics of Perhydrous Bituminous Coal by Fourier Transform Infrared Spectroscopy and Thermogravimetry/mass Spectrometry显示文摘 | Wu Dun Liu Guijian Sun Ruoyu | 2014 | Energy and Fuels2014，28，5： | 1 |
| 7 | Environmental assessment of PAHs in soils around the Anhui coal district, China显示文摘 | WANG Ruwei LIU Guijian CHOU Chenlin | 2009 | Archives of Environmental Contamination and Toxicology2009，59，1： | 1 |
| 8 | Sulfur in coal and its environmental impact from Yanzhou ming district,China显示文摘 | Liu Guijian Peng Zicheng Yang Pingyue | 2001 | Chinese Journal of Geochemistry2001，20，3： | 1 |
| 9 | The distribution, occurrence and environmental effect of mercury in Chinese coals 显示文摘 | ZHENG Liugen LIU Guijian CHOU Chenlin | 2007 | Sci Total Environ2007，384，123： | 1 |
| 10 | Petrological and mineralogical characterizations and chemical composition of coal ashes from power plants in Yanzhou mining district, China显示文摘 | Liu Guijian Zhang Haoyuan Gao Lianfen | 2004 | Fuel Processing Technology2004，，15： | 1 |
| 11 | Distribution and mode of occurrence of As, Hg and Se and sulfur in coal seam 3 of the Shanxi Formation,Yanzhon Coalfield, China显示文摘 | Liu Guijian Zheng Liugen Zhang Ying | 2007 | International Journal of Coal Geology2007，71，23： | 1 |
| 12 | Selective adsorption and separation of trace dissolved Fe(Ⅲ) from natural water samples by double template imprinted sorbcnt with chelating diamines 显示文摘 | Fazhi Xie Guijian Liu Fengchang Wu Guanghui Guo Guolian Li | 2012 | Chemical Engineering Journal2012，183，： | 1 |
| 13 | Atmospheric emissions of F,As,Se, Hg,and Sb from coal-fired power and heat generation in China显示文摘 | CHEN Jian LIU Guijian KANG Yu | 2013 | Chemosphere2013，90，6： | 1 |
| 14 | Arsenic in Chinese coals : distribution, modes of occurrence, and environmental effects 显示文摘 | KANG Yu LIU Guijian CHOU Chenlin | 2011 | Sci Total Environ2011，，： | 1 |
| 15 | Sequential solvent extraction for forms of antimony in five selected coals 显示文摘 | Qi Cuicui Liu Guijian Yu Kang | 2008 | The Journal Of Geology2008，116，2： | 1 |
| 16 | Selenium in Chinese coals: Distribution, occurrence, and health impact 显示文摘 | Wang Lei Ju Yiwen Liu Guijian | 2010 | Environmental Earth Science2010，60，： | 1 |
| 17 | Arsenic in Chinese coals: distribution, modes of occurrence, and environmental effects 显示文摘 | KANG Yu LIU Guijian CHOU Chenlin | 2011 | Sci Total Environ2011，，： | 1 |
| 18 | Atmospheric emissions of F, As, Se, Hg, and Sb from coal -fired power and heat generation in China 显示文摘 | CHEN Jian LIU Guijian KANG Yu | 2013 | Chemosphere2013，90，6： | 1 |
| 19 | Arsenic in Chinesecoals:distribution,modes of occurrence,and environmental effects 显示文摘 | KANG Yu LIU Guijian CHOU C L | 2011 | Science of the Total Environment2011，，： | 1 |
| 20 | Investigation on thermal and trace element characteristics during co-combustion biomass with coal gangue 显示文摘 | ZHOU Chuncai LIU Guijian FANG Ting | 2015 | Bioresource Technology2015，175，： | 1 |
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