刘鸿
环境电化学/环境催化。重点针对“有毒有害物质去除/资源化的电子转移过程”,以电化学、催化科学、材料为基础,阐明新原理,制备新材料,开发新工艺,为实际的废弃物达标排放及资源化工艺、工程提供理论依据和技术支持。
个性化签名
- 姓名:刘鸿
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
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学科领域:
环境科学技术
- 研究兴趣:环境电化学/环境催化。重点针对“有毒有害物质去除/资源化的电子转移过程”,以电化学、催化科学、材料为基础,阐明新原理,制备新材料,开发新工艺,为实际的废弃物达标排放及资源化工艺、工程提供理论依据和技术支持。
刘鸿,男,1970年4月生于重庆,理学博士,中山大学化学与化学工程学院教授,博士生导师。1993年毕业于西南大学化学系环境科学专业,获学士学位;1996年毕业于浙江大学化学系环境化学专业,获硕士学位;1999年毕业于浙江大学化学系物理化学专业,获博士学位。2003年开始,受聘于中山大学化学与化学工程学院,历任副教授、教授,2008年入选教育部新世纪优秀人才支持计划。
教育经历
•1996.3-1999.7浙江大学化学系物理化学专业 获博士学位
•1993.9-1996.3浙江大学化学系环境化学专业 获硕士学位
•1989.9-1993.7西南大学化学系环境科学专业 获学士学位
工作经历
•2009.1-今 中山大学化学与化学工程学院 教授,博士生导师
•2003.8-2008.12中山大学化学与化学工程学院 副教授、博士生导师
•2001.8-2003.8香港理工大学土木及结构工程学系水实验室 博士后
•1999.7-2001.8中科院大连化学物理研究所废水处理工程组 博士后
学术兼职:
广东省化工协会精细化工专业委员会 委员
广东省环境科学学会 会员
广州绿色化工产学研联盟 理事
科研方向
环境电化学/环境催化。重点针对“有毒有害物质去除/资源化的电子转移过程”,以电化学、催化科学、材料为基础,阐明新原理,制备新材料,开发新工艺,为实际的废弃物达标排放及资源化工艺、工程提供理论依据和技术支持。
获奖情况
2003年以来,主持国家自然科学基金3项,省部级科研项目2项,科技攻关项目3项,企业合作项目3项。发表SCI论文20余篇,中文专著1本,参编英文专著1章,获广东省2005年度科技进步一等奖
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1330
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成果阅读
890
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成果数
20
【期刊论文】Kinetic modeling of electro-Fenton reaction in aqueous solution
刘鸿, H. Liua, X.Z. Li b, *, Y.J. Leng c, C. Wang a
WATER RESEARCH 41 (2007) 1161-1167,-0001,():
-1年11月30日
To well describe the electro-Fenton (E-Fenton) reaction in aqueous solution, a new kinetic model was established according to the generally accepted mechanism of E-Fenton reaction. The model has special consideration on the rates of hydrogen peroxide (H2O2) generation and consumption in the reaction solution. The model also embraces three key operating factors affecting the organic degradation in the E-Fenton reaction, including current density, dissolved oxygen concentration and initial ferrous ion concentration. This analytical model was then validated by the experiments of phenol degradation in aqueous solution. The experiments demonstrated that the H2O2 gradually built up with time and eventually approached its maximum value in the reaction solution. The experiments also showed that phenol was degraded at a slow rate at the early stage of the reaction, a faster rate during the middle stage, and a slow rate again at the final stage. It was confirmed in all experiments that the curves of phenol degradation (concentration vs. time) appeared to be an inverted ‘‘S’’ shape. The experimental data were fitted using both the normal first-order model and our new model, respectively. The goodness of fittings demonstrated that the new model could better fit the experimental data than the first-order model appreciably, which indicates that this analytical model can better describe the kinetics of the E-Fenton reaction mathematically and also chemically.
E-Fenton, H2O2, Kinetic Model, Phenol
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刘鸿, Hong Liu, *, † Shaoan Cheng, ‡ Ming Wu, † Hejin Wu, † Jianqing Zhang, ‡ Wenzhao Li, † and Chunan Cao‡
J. Phys. Chem. A 2000, 104, 7016-7020,-0001,():
-1年11月30日
A three-electrode system composed of TiO2/Ni as the working electrode, porous nickel as the counter electrode, and saturated calomel electrode (SCE) as the reference electrode was used for the photoelectrocatalytic degradation of organic compounds. The photoelectrocatalytic degradation of sulfosalicylic acid (SSal) under anodic bias potential was investigated. It is shown that SSal can be degraded effectively as the external potential is increased up to 700 mV (vs SCE). The characteristics by electrochemical impedance spectroscopy (EIS) of the photoelectrocatalytic degradation of sulfosalicylic acid (SSal) was also investigated. It is shown from the EIS that the photoelectrocatalytic degradation appears to be a simple reaction on the electrode surface, suggesting that only one step of charge transfer is involved in the electrode process. The value of the resistance of charge transfer for the photoelectrocatalytic reaction of SSal manifests itself not only in the reaction rate, but also in the separation efficiency of the photogenerated electron-hole pairs. The separation efficiency of the electron-hole pairs under N2 atmosphere is higher than that under O2 atmosphere.
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【期刊论文】The enhancement of TiO2 photocatalytic activity by hydrogen thermal treatment
刘鸿, H. Liu a, b, H.T. Ma b, X.Z. Li a, *, W.Z. Li b, M. Wu b, X.H. Bao b
Chemosphere 50 (2003) 39-46,-0001,():
-1年11月30日
In this study, conventional TiO2 powder was heated in hydrogen (H2) gas at a high temperature as pretreatment. The photoactivity of the treated TiO2 samples was evaluated in the photodegradation of sulfosalicylic acid (SSA) in aqueous suspension. The experimental results demonstrated that the photodegradation rates of SSA were significantly enhanced by using the H2-treated TiO2 catalysts and an optimum temperature for the H2 treatment was found to be of 500-600℃. The in situ electron paramagnetic resonance (EPR) signal intensity of oxygen vacancies (OV) and trivalent titanium (Ti3+) associated with the photocatalytic activity was studied. The results proved the presence of OV and Ti3+ in the lattice of the H2-treated TiO2 and indicated that both were contributed to the enhancement of photocatalytic activity. Moreover, the experimental results presented that the EPR signal intensity of OV and Ti3þ in the H2-treated TiO2 samples after 10 months storage was still significant higher than that in the untreated TiO2 catalyst. The experiment also demonstrated that the significant enhancement occurred in the photodegradation of phenol using the H2-treated TiO2.
Photocatalysis, Titanium dioxide, Hydrogen treatment, Photodegradation
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刘鸿, Hong Liu*, Shao’au Cheng, Jianqing Zhang, Chunan Cao
Chemosphere, Vol.38, No.2, pp.283-292, 1999,-0001,():
-1年11月30日
The commonly used photocatalyst, TiOl (anatase), has been immobilized on porous nickel using 3 wt.% polyvinyl alcohol (PVA) as the binder. The results show that sulfosalicylic acid (SSal) can be degraded on the developed catalytic system. The adsorption characteristics on TiOz-Ni system have been investigated. The observance of photocalytic degradation of SSal under pH values and initial concentrations can be explained by the adsorption behavior of SSal. The parameters of the Langmuir-Hinshelwood expression have been determined by different experimental ways and the results are satisfactory.
Titanium dioxide,, Photocatalyst,, Sulfosalicylic acid,, Immobilization,, Adsorption.,
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【期刊论文】THE GAS-PHOTOCATALYTIC DEGRADATION OF TRICHLOROETHYLENE WITHOUT WATER
刘鸿, Hong Liu, Shao’an Cheng*, Jianqing Zhang, Chunan Cao, Weichuan Jiang
Chemosphere, Vol.35, No.12, pp.2881-2889, 1997,-0001,():
-1年11月30日
The photocatalytic degradation of gaseous trichloroethylene (TCE) without water has been studied. The degradation products were determined to be CO2. HCl and Cl2, and the reaction stoichiometr\,h v was described as C2HCI3+ 2O2hv→HO2 HCI+2C0, +Cl2,. The degradation rate was found to be linear with 0.16 power of the illumination intensity. When the TC’E concentration was low (10-4mol L-1 or a little more), its degradation rate model could be considered as first order kinetics. A mechanism oi valence band hole oxidation was proposed.
Gas Photocatalysis,, Trichloroethylene., Degradation
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刘鸿, Junxi Liu a, Hong Liu a, ∗, Chuan Wang a, Xiangzhong Li b, Yexiang Tong a, Xiaoli Xuana, b, Guofeng Cui a
Journal of Hazardous Materials 151 (2008) 761-769,-0001,():
-1年11月30日
The conventionally employed zero-valent iron (Fe0) particles suffer a formation of surface oxides to lower their activity prior to use. During their using process for contaminant remediation, such oxide formation is also encountered, while the cumbersome handling of particles impedes the Fe0 recovery. To conquer the drawbacks, a Fe0 film was synthesized by electrodepositing ferrous ion cathodically on titanium (Ti) substrate to form a new Fe0/Ti system. X-ray diffraction (XRD) revealed that the freshly electrodeposited (FED) Fe0 film was free of oxides, which was attributed to the particularity of electrodeposition procedure. Reduction results of 10.0 mg/L chromium [Cr(VI)] indicated that the FED Fe0 film had higher activity than the oxide-covered counterpart. Further analysis of the pH-dependent Cr(VI) reduction reaction indicated that the Fe0/Ti system kept its activity and could be reused for further Cr(VI) reduction at pH 3.0 and 4.0, while it was inactivated at pH 5.0 and 7.0. Due to the easy handling of Fe0/Ti system, the inactivated Fe0 was recovered significantly through a cathodic reduction.
Zero-valent iron, Electrodeposition, Surface oxides, Chromium(, VI), , Reduction
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刘鸿, Junxi Liu, ChuanWang, Jianying Shi, Hong Liu∗, Yexiang Tong∗
Journal of Hazardous Materials 163 (2009) 370-375,-0001,():
-1年11月30日
Thiswork investigated the effect of co-existing organic matters on aqueous Cr(VI) reduction by electrodeposited zero-valent iron (ED Fe0) at neutral pH. The ED Fe0 prepared in a solution containing mixture of saccharin, l-ascorbic acid and sodium dodecyl sulfate showed higher activity in reducing the aqueous Cr(VI) at neutral pH than that prepared without any organic presence. XRD and SEM indicated that the structure of ED Fe0 was significantly improved to nano-scale by the presence of organic mixture in the preparation solution. Further, the ED Fe0 activity in the Cr(VI) reduction at neutral pH was increased by the co-existence of citric acid or oxalic acid in the chromate solution. Electrochemical impedance spectroscopy (EIS) demonstrated that the corrosive current increased with the concentration of organic matter in the reaction solution. With the co-existing organic matters in the preparation solution, the ED Fe0 corroded more rapidly due to its nano-size, thus the Cr(VI) reduction by the ferrous iron was accelerated. With the co-existing organic matters in the reaction solution, the Cr(VI) reduction was accelerated by a Fe(II) complex as the main electron donor, and a prevention of the passivation due to the Fe(III) and Cr(III) complexes also accelerated the Cr(VI) reduction.
Zero-valent iron, Chromium(, VI), reduction, Electrodeposition, Electrochemical impedance spectroscopy
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【期刊论文】Reaction kinetics of photocatalytic degradation of sulfosalicylic acid using TiO2 microspheres
刘鸿, Chuan Wang a, Xianghua Zhang b, Hong Liu a, ∗, Xiangzhong Li c, Wenzhao Li b, Hengyong Xu b
Journal of Hazardous Materials 163 (2009) 1101-1106,-0001,():
-1年11月30日
The photocatalytic (PC) degradation kinetics of sulfosalicylic acid (SSA) at different pH using TiO2 microspheres were elucidated by modeling. The resultant model had special consideration of adsorption and pH. The adsorption isotherms showed that the LC/MS2-identified intermediateswereweakly adsorbed on the TiO2 microspheres, thus their adsorptionwas neglected in the modeling. By contrast, the SSAwas significantly adsorbed, thus its adsorption retained as an item in the model. Consequently, a non-first-order modelwas obtained. Through the modeling, itwas elucidated that the reaction rate increased non-linearly with the SSA adsorption equilibrium constant. Meanwhile, it was elucidated that a pH increase favored the hydroxyl radical production to accelerate the SSA degradation, while impeded the SSA adsorption to slower it, hence a neutral pH caused the fastest SSA degradation.
Photocatalysis, Kinetics, Sulfosalicylic acid, TiO2 microspheres
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刘鸿, Leng Wenhua*, Liu Hong, Cheng Sao’an, Zhang Jianqing, Cao Chunan
Journal of Photochemistry and Photobiology A: Chemistry 131 (2000) 125-132,-0001,():
-1年11月30日
The photocatalytic degradation of aniline was studied in annular photoreactor, with 2 6W (EmaxD365 nm) UV lamp as light source, borosilicate glass as wave filter and titanium dioxide immobilized on porous nickel as catalysts. Parameters such as the initial concentration, flow rate, initial pH, dissolved oxygen, electrolyte, hydrogen peroxide addition, temperature and external potential bias affecting the degradation rate of aniline were studied. The results showed that photocatalysis is an effective process for the degradation of aniline. The activated energy for the photocatalytic degradation of aniline is 6.13 kJ mol-1. The initial quantum yield is 1.89% for aniline 1.10×10-4 mol l-1. Total mineralization requires a much longer illumination time than the disappearance of anilines. The external potential bias can largely improve the efficiency of photocatalytic degradation of aniline. The degradation kinetic of aniline can be described by Langmuir-Hinshelwood equation.
Photocatalytic degradation, Immobilized titanium dioxide, Aniline
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刘鸿, Shaoan Cheng), Jianqing Zhang, Hong Liu, Yongjun Leng, Anbao Yuan, Chunan Cao
Journal of Power Sources 74 1998. 155-157,-0001,():
-1年11月30日
a.c. impedance measurements are made on spiral-wound, size 4r5A, NirMH batteries, which are prepared by using direct-seal technology. Both the positive and the negative electrodes are fabricated by filling in a porous nickel substrate with the active materials. The main purpose of the investigation is to determine the causes. of the early cycling deterioration of this foam-type battery. The results demonstrate that the cycle-life curve can be divided into three parts. After little change in capacity and voltage, deterioration of the NirMH battery occurs as the voltage performance decreases. This is followed by a sharp decrease in both the discharge capacity and the voltage performance. The decrease in voltage performance is due to drying of the separator, which increases the total ohmic resistance of the battery, while the decrease of discharge capacity is due to an inactive surface that increases the charge-transfer resistance of the battery.
Nickelrmetal hydride battery, Impedance, Foam nickel, Capacity, Voltage performance
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