期刊：
IOP Conference Series: Earth and Environmental Science,2019年237(2):022020- ISSN：1755-1307
通讯作者：
Liu, Jian;Yao, Jun
作者机构：
[Liu, Xing; Liu, Jian; Zeng, Rongying; Yi, Zhengji] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Liu, Xing; Liu, Jian; Zeng, Rongying; Yi, Zhengji] Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[Yao, Jun] China Univ Geosci Beijing, Sino Hungarian Joint Lab Environm Sci & Hlth, Sch Water Resource & Environm Engn, 29 Xueyuan Rd, Beijing 100083, Peoples R China.
通讯机构：
[Liu, Jian] H;[Yao, Jun] C;Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;China Univ Geosci Beijing, Sino Hungarian Joint Lab Environm Sci & Hlth, Sch Water Resource & Environm Engn, 29 Xueyuan Rd, Beijing 100083, Peoples R China.
会议名称：
4th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE)
会议时间：
DEC 07-09, 2018
会议地点：
Chengdu, PEOPLES R CHINA
会议主办单位：
[Yi, Zhengji;Liu, Xing;Liu, Jian;Zeng, Rongying] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.^[Yi, Zhengji;Liu, Xing;Liu, Jian;Zeng, Rongying] Hengyang Normal Univ, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.^[Yao, Jun] China Univ Geosci Beijing, Sino Hungarian Joint Lab Environm Sci & Hlth, Sch Water Resource & Environm Engn, 29 Xueyuan Rd, Beijing 100083, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
The aim of the present research is to study the applicability of using dead Hydrilla verticillata powder to remove lead(II) ion from aqueous solution by means of batch experiments. Influence of oscillation time, solution pH value, and initial Pb(II) level upon its biosorption was examined in some detail. The result indicated that Pb(II) adsorption is highly pH dependent. The pH range from 5.0 to 5.5 is most favorable for Pb(II) removal with ca. 90% of Pb(II) removed. The adsorption data was in agreement with pseudo-first-order kinetics with an adsorption equilibrium time of 50 min. Isotherm data can be described by the Langmuir equation with a maximum adsorption capacity of 157.23 mg/g. These findings suggest that H. verticillata could be a promising biosorbent for Pb(II) removal.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
The purpose of this investigation was to explore the feasibility of utilizing heat inactivated (killed) Elodea canadensis to eliminate divalent lead ions from water solution via batch tests. The Pb(II) biosorption features of E. canadensis biomass were examined with regard to adsorption time, solution pH value and Pb(II) concentration. Our experimental result suggested that the lead biosorption depended highly on medium pH. A pH of 5.0 is most beneficial to lead removal. The biosorption data agreed with pseudo-second-order kinetic model with an adsorption equilibrium time of 60 minutes. Isotherm data agreed with Langmuir isotherm equation with 21.36 mg/g of maximum biosorption capacity. The results suggested that E. canadensis is an inexpensive and efficient sorbent for the elimination of Pb(II) from wastewater.
作者机构：
[Yi, Zheng-ji] Hengyang Normal Univ, Key Lab Funct Organometall Mat, Sch Chem & Mat Sci, Coll Hunan Prov, Hengyang 421008, Peoples R China.;[Tan, Kai-xuan] Univ South China, Sch Nucl Resources & Nucl Fuel Engn, Hengyang 421001, Peoples R China.
会议名称：
2nd International Workshop on Renewable Energy and Development (IWRED)
会议时间：
APR 20-22, 2018
会议地点：
Guilin, PEOPLES R CHINA
会议主办单位：
[Yi, Zheng-ji] Hengyang Normal Univ, Key Lab Funct Organometall Mat, Sch Chem & Mat Sci, Coll Hunan Prov, Hengyang 421008, Peoples R China.^[Tan, Kai-xuan] Univ South China, Sch Nucl Resources & Nucl Fuel Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
The Xiangxi gold mine was taken as an example to illustrate the application of the finite element and updated Lagrangian approach in the simulation and prediction of the quality of tailings effluents. The numerical modeling results suggest that tailings-water interaction at the early stage leads to the acidification and release of heavy metals which are responsible for the persistent pollution to the environment for 30 years. Tailings pore water can be gradually neutralized and contents of polluted species tend to decline markedly with time. The gangue dissolution and organic matter reaction can stimulate acid neutralization and decrease the diffusion rate of oxygen in tailings impoundments. The contents of pore-water species in upper tailings are significantly higher than in lower part and change severely at 6 m depth. Therefore, the hydrological zoning phenomenon in tailings impoundments accounts for geochemical zonation. This model has the potential to predict drainage quality of sulfide mine tailing impoundments.
摘要：
We demonstrate a novel and universal strategy to significantly boost electrochemical performances of conducting polymer-based flexible supercapacitors via the relatively facile electrodeposition of Mo-Ni-P compounds. The fabricated Mo-Ni-P@polyaniline (PANI)@carbon fiber cloth (CFC) sandwiched hybrid, for instance, delivers 94.6% of specific capacitance retention from 1 to 40 mA cm(-2) and 92.3% of specific capacitance retention at a high current density of 40 mA cm(-2) after 2000 cycles, much greater than 56.8% and 58.3% for the uncoated PANI@CFC with Mo-Ni-P, respectively. With increasing the numbers for repeatedly alternate coating PANI and Mo-Ni-P layer by layer, the specific capacitances rise almost linearly. Simultaneously, the capacitance retentions maintain high levels at 40 mA cm(-2) after 2000 cycles. A remarkable decrease in the charge transfer resistance and a markedly enhanced hydrophilicity with coating Mo-Ni-P on the surface of PANI@CFC can be found, which can greatly facilitate the electron and electrolyte ion transfer processes and thereby bring with it improved supercapacitive performance. Likewise, the supercapacitive performances of polypyrrole and poly(3,4-ethylenedioxythiophene) can be significantly enhanced in comparison with their Mo-Ni-P uncoated counterparts. (C) 2017 Elsevier Ltd. All rights reserved.
作者机构：
[Yi Zheng-ji] Hengyang Normal Univ, Coll Hunan Prov, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat, Hengyang 421008, Peoples R China.;[Chen Hui-lun; Yi Zheng-ji; Yao Jun; Zhu Mi-jia] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China.;[Chen Hui-lun; Yi Zheng-ji; Yao Jun; Zhu Mi-jia] Univ Sci & Technol Beijing, Natl Int Cooperat Base Environm & Energy, Xueyuan Rd 30, Beijing 100083, Peoples R China.
会议名称：
International Conference on Material, Energy and Environment Engineering (ICM3E)
会议时间：
JAN 30-31, 2016
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Yi Zheng-ji] Hengyang Normal Univ, Coll Hunan Prov, Dept Chem & Mat Sci, Key Lab Funct Organometall Mat, Hengyang 421008, Peoples R China.^[Yi Zheng-ji;Yao Jun;Zhu Mi-jia;Chen Hui-lun] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Xueyuan Rd 30, Beijing 100083, Peoples R China.^[Yi Zheng-ji;Yao Jun;Zhu Mi-jia;Chen Hui-lun] Univ Sci & Technol Beijing, Natl Int Cooperat Base Environm & Energy, Xueyuan Rd 30, Beijing 100083, Peoples R China.
摘要：
Biological reduction of uranyl by Desulfovibrio desulfurican has been considered as a promising pathway for removing U(VI) from groundwater. In this paper, anaerobic batch tests were conducted to explore the effect of two ubiquitous ferric (hydr) oxides, hematite and goethite, on the bioreduction of U(VI) by D. desulfurican. When hematite or goethite (containing solidoid Fe(III) ranging from 10 to 30 mmol/L) was coexistent, U(VI) bioreduction could always be inhibited and the inhibitory effect was increased with increasing content of ferric (hydr) oxide. In the presence of a mixture of hematite and goethite with the total solidoid Fe(III) kept constant at 20 mmol/L, the inhibitory effect on U(VI) reduction by the minerals were directly correlated with the fraction of hematite. Moreover, a gradual increase in U(VI) concentration could be observed in all ferric (hydr) oxide treatments after ten days, accompanied by the release of ferrous ion into the solution. In summary, the presence of ferric (hydr) oxide can lead to the eventual incomplete U(VI) bioreduction.
作者机构：
[Tang, Siping; Xu, Zhifeng; Feng, Yonglan; Wang, Deping] Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Tang, Siping] H;Hengyang Normal Univ, Dept Chem & Mat Sci, Hengyang 421008, Hunan, Peoples R China.
会议名称：
2nd International Congress on Advanced Materials (ICAM)
会议时间：
MAY 16-19, 2013
会议地点：
Jiangsu Univ, Zhejiang, PEOPLES R CHINA
会议主办单位：
Jiangsu Univ
会议论文集名称：
Key Engineering Materials
关键词：
Platinum (II) complex;beta-Cyclodextrin derivatives;DNA binding
摘要：
Mono-modified beta-cyclodextrins ligands, L-1 (6-mono-(N-aminoethyl)amino-beta-cyclodextrin) and L-2 (6-mono-(N-(pyridin-2-yl)ethylamino)-beta-cyclodextrin), and their platinum(II) complexes, 1 ([Pt(L-1)Cl-2]center dot 8H(2)O) and 2 ([Pt(L-2)Cl-2]center dot 4H(2)O), were successfully synthesized. As revealed by UV-Vis and CD spectroscopic studies, both complexes mainly adopt a non-intercalative mode with DNA. The interaction between platinum complex 1 and DNA was obviously observed in agarose Gel Electrophoresis. Meanwhile, two ligands L-1, L-2 and platinum complex 2 have no obvious interaction with DNA. The difference interaction between complexes 1, 2 and DNA should be ascribed to their different structures.
摘要：
Activated palm kernel shell carbon (APKSC) was used to remove U(VI) from aqueous solutions in a batch system. The adsorption kinetics, isotherms, and effects of various parameters, such as temperature, contact time, solution pH, adsorbent dosage, and initial U(VI) concentration on the U(VI) adsorption process were studied. Equilibrium was reached after 120 min in the range of studied U(VI) concentrations and temperatures. U(VI) uptake was insignificantly affected by temperature, but was highly pH dependent, and the optimum pH for removal was 5.5. U(VI) removal efficiency increased with the increasing adsorbent dosage. U(VI) sorption capacity increased with increasing initial U(VI) concentration; any further increases in initial U(VI) concentration above a certain point caused insignificant changes in U(VI) sorption capacity. Isotherm data could be described by the Langmuir isotherm model with a maximum U(VI) adsorption capacity of 51.81 mg/g. Kinetic data were fitted to pseudo-first-order and pseudo-second-order equations, which suggested that the U(VI) adsorption onto APKSC was better reproduced by the pseudo-second-order model rather than pseudo-first-order model. Our results indicated that APKSC might be used as a cheap adsorbent in the treatment of uranium-containing wastewater.
摘要：
Although widely applied in many industries, anionic surfactants (AS) have been shown to contaminate the natural environment. Therefore, the detection of trace amounts of AS in environmental samples is of great interest. Here, we report a novel fluorescence quenching method for the determination of trace AS, specifically, sodium dodecyl sulfate (SDS), using 1-(5-naphthol-7-sulfonic acid) -3-(4-pheny-lazophenyl)-triazene (NASAPAPT). Under optimum conditions, the degree of fluorescence quenching is linearly proportional to the concentration of SDS from 2.08×10-8 to 8.67×10-7mol L-1 with a detection limit of 8.35×10-9mol L-1. The proposed method exhibits high sensitivity and selectivity, yet it avoids the use of toxic organic solvents and tedious solvent extraction procedures. It has been applied to the determination of trace SDS in both natural water and industrial samples with recoveries between 99.04 and 103.58%. Results indicated that the hydrogen bonds formed between NASAPAPT and SDS played an important role in the detection process and that the π→π* transition was crucial for fluorescence of the NASAPAPT complex.
摘要：
Six new 3d-4f heterometallic coordination polymers, {[Ln4Cu2(INAIP)8(H2O)15]·14H2O}n [Ln = La (1), Pr (2), Nd (3)] and {[LnCo0.5(INAIP)2(H2O)2]·2H2O}n [Ln = Tb (4), Dy (5), Yb (6), H2INAIP = 5-(isonicotinamido)isophthalic acid] have been synthesised and characterised by single crystal X-ray diffraction analysis. The results of structural analyses showed that 1–3 are isomorphous showing two-fold interpenetrated three-dimensional (3D) coordination framework, while 4–6 have the same non-interpenetrated 3D structure with 2D (4, 4) lanthanide-carboxylate layers. The results revealed that the different transition metal centres have great influence on the structures of the resulted complexes in this system. In addition, thermogravimetric and magnetic properties of 1–6, and photoluminescence of 4 were investigated.
摘要：
Batch experiments were conducted under static and dynamic conditions respectively to explore the mechanism and kinetics of U(VI) immobilization by zerovalent iron (ZVI) and the impact of pyrite. The dynamic results suggest that the U(VI) immobilization reaction by ZVI shows pseudo-first order with respect to U(VI) concentration. When the initial U(VI) concentration increased from 50 to 300mg/L at a fixed ZVI loading (2%), the rate constantly decreased from 0.1776 h(-1) to 0.0177 h(-1). The static results show that ZVI system removed U(VI) very quickly whereas the FeS(2) system did the most slowly. As for the ZVI+ FeS(2) system, the U(VI) immobilization process was significantly inhibited in the presence of pyrite. The fixation of U(VI) may chiefly rely on the chemical reduction under dynamic conditions, but on the coprecipitation with iron corrosion products under static conditions. The latter process was also associated with pyrite lowering the system pH and controlling the amount of iron oxide.
摘要：
Batch experiments were conducted to investigate the kinetics of uranyl removal by zerovalent iron (ZVI) as well as the impact of environmental factors on this process. The result suggests that the aqueous uranyl cations can be reductively removed by ZVI. The uranyl immobilization was little affected by reaction temperature, indicating that this process was a chemical-controlled reaction mediated by the iron surface. The uranyl removal rate increased with decreasing pH at acidic pH. The uranyl fixation by ZVI followed first-order kinetics with regard to ZVI at low iron amendments and zero-order kinetics with regard to ZVI at high iron amendments.
期刊：
2009 3RD INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING, VOLS 1-11,2009年:4699-4703
通讯作者：
Tan, Kaixuan
作者机构：
[Zeng, Sheng; Tan, Kaixuan] Univ S China, Sch Nucl Resources & Safety Engn, Hengyang, Peoples R China.;[Yi, Zhengji] Hengyang Normal Univ, Dept Chem, Hengyang, Peoples R China.
通讯机构：
[Tan, Kaixuan] U;Univ S China, Sch Nucl Resources & Safety Engn, Hengyang, Peoples R China.
会议名称：
iCBBE 2009
会议时间：
2009-01-01
会议地点：
Beijing, China
会议论文集名称：
The 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2009). [v.8]
关键词：
Sulfate reducing bacteria;Zero-valent iron;Treatment of uranium-bearing wastewater;Column experiment
摘要：
The treatment of uranium-bearing wastewater from uranium mine and using microorganism to treating wastewater is paid much attention to environmental researchers. Based on column experiments, the paper investigated the potential using sulfate reducing bacteria (SRB) and zero-valent iron (ZVI) to synergetic treat contamination in wastewater such as sulfate, uranium, etc. The results show that SRB+ZVI can effectively remove contamination U(VI) and SO4~(2-) in wastewater, the removal rate is 99.4% and 86.2% for U(VI) and (SO_4)~(2-) respectively, the pH value of wastewater can be basified to neutral. U(VI) and (SO_4)~(2-) as electron acceptor of sulfate reducing bacteria are removed by biological reduction. The corrosion of ZVI is benefit to enhance the pH value of wastewater and form anaerobic reducing environment, strengthen survival and metabolism reaction of SRB, and play a synergetic enhancement.
摘要：
One novel complex Mn2(phen)2(p-CBA) 4(H2O) has been hydrothermally synthesized from p-chlorobenzoic acid (p-CBA), 1,10-phenanthroline (phen) and anhydrous manganese(II) sulfate and then characterized. Crystal data for this complex: monoclinic, space group C2/c, with a = 2.3416(3), b = 1.5604(2), c =1.5605(2) nm, β = 121.048(2)°, V= 4.8849(12) nm3, Dc = 1.510 g/cm3, Mr = 555.26, Z = 8, μ = 0.798 mm -1, F(000) = 2256, GOOF = 1.032, the final R = 0.0393 and wR = 0.0816. The crystal structure shows that two neighboring manganese(II) ions are linked together by two bridge-chelating p-chlorobenzoic groups and one bridging water molecule, forming a cage structure with the Mn-Mn bond distance of 0.3512 nm. Each manganese(II) ion is coordinated by two nitrogen atoms of one 1,10-phenanthroline molecule and four oxygen atoms from three p-chlorobenzoic acid anions and one water molecule, giving a distorted octahedral coordination geometry. The cyclic voltammetric behavior of the complex was also investigated.
摘要：
One novel complex [Co(p-MBA)2(2,2′-bipy)(H 2O)](H20) has been synthesized by the reaction of p-methylbenzoic acid with 2,2′-bipyridine in the solvent mixture of water and methanol. It crystallizes in triclinic, space group P1̄ with a = 0.70479(14), b = 1.1211(2), c = 1.6718(3) nm, α = 103.806(3), β= 90.795(3), γ = 104.207(3)°, V= 1.2399(4) nm3, Mr = 512.41, Dc= 1.373 g/cm3, Z = 2, F(000) = 532, μ = 0.733 mm-1, R= 0.0432 and wR = 0.0957. The crystal structural analysis shows that the cobalt atom is coordinated with three oxygen atoms from two p-methylbenzoic acids and one water molecule and two nitrogen atoms from one 2,2′-bipyridine, forming a distorted square-pyramidal coordination geometry. The cyclic voltammetry behavior of the complex is also reported.
