张金龙
(1) 高效纳米二氧化钛光催化剂的制备、表征、光催化机理的研究,以及这些材料在环境与污染控制中的应用; (2)研究在此微环境反应场内有机无机主-客体分子间的相互作用机理及其光物理化学性能。
个性化签名
- 姓名:张金龙
- 目前身份:
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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
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学科领域:
应用化学(具体应用入有关学科)
- 研究兴趣:(1) 高效纳米二氧化钛光催化剂的制备、表征、光催化机理的研究,以及这些材料在环境与污染控制中的应用; (2)研究在此微环境反应场内有机无机主-客体分子间的相互作用机理及其光物理化学性能。
张金龙教授,1964年5月出生于江苏吴江。1985年毕业于华东理工大学应用化学系,1993年在同校获精细化工工学博士学位。1996,10-2000,9在日本大阪府立大学作博士后和外国人特别研究员(JSPS);2000年任华东理工大学教授、博士生导师。兼任教育部留学回国人员科研启动基金评选专家,中国感光学会青年委员。2001年入选上海市教委和教育基金会 “曙光划”,2004年入选“教育部新世纪优秀人才资助计划”。主要从事的研究领域为:(1) 高效纳米二氧化钛光催化剂的制备、表征、光催化机理的研究,以及这些材料在环境与污染控制中的应用; (2)研究在此微环境反应场内有机无机主-客体分子间的相互作用机理及其光物理化学性能。在J. Phys. Chem.B,Langmuir,J.Catal.; Micropores and Mesopores Materials等SCI收录期刊上发表论文60余篇,发表论文总数超过一百篇,论文被引用百余次。主编著作1部,参编著作3部。另外还申请中国发明专利5项。J. Am. Chem. Soc., J. Phys. Chem. B, Tetrahedron Letters, Journal of Hazardous Materials, Materials Research Bulletin, Dyes and Pigments 等国际杂志的特约审稿人。承担和完成的主要科研项目有:国家自然科学基金2项、国家973子项目1项、教育部新世纪优秀人才资助计划1项、上海市教育委员会曙光计划1项、教育部科学技术研究重点项目1项、上海市纳米专项2项和教育部回国人员基金1项。
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【期刊论文】Synthesis of La3+ doped mesoporous titania with highly crystallized walls
张金龙, Shuai Yuan a, Qiaorong Sheng a, Jinlong Zhang a, *, Feng Chen a, Masakazu Anpo b, Qinghong Zhang c
Microporous and Mesoporous Materials 79(2005)93-99,-0001,():
-1年11月30日
A simple synthetic method to prepare thermally stable La3+ doped mesoporous titania with highly crystallized walls and high photocatalytic activity is reported. The crystalline framework derives from the assembly of nano-anatase particles. La3+ doping is a critical factor to increase the stability and photocatalytic activity of mesoporous titania. The mesoporous materials werecharacterized by low angle and wide angle X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), N2 adsorption-desorption and UV-visible absorbance spectroscopy. Characteristic results clearly show that La3+ doped samples have highly regular mesoporous structures, and their crystallized walls are composed of nano-anatase particles. The photocatalytic activity of the prepared mesoporous titania powders was evaluated from an analysis of the photo-degradation of methyl orange. The results indicate that sample doped with 0.25 at% La3+, has the highest photocatalytic activity.
Mesoporous titania, La3+, , Crystallized walls, Synthesis, Photocatalysis
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【期刊论文】Photocatalytic Oxidation of Ethylene to CO2 and H2O on Ultrafine Powdered TiO2 Photocatalysts
张金龙, Dal-Rung Park, y Jinlong Zhang, Keita Ikeue, Hiromi Yamashita, and Masakazu Anpo
,-0001,():
-1年11月30日
The complete photocatalytic oxidation of C2H4 with O2 into CO2 and H2O has been achieved on ultrafine powdered TiO2 photocatalysts and the addition of H2O was found to enhance the reaction. The details of the photocatalytic reaction have been studied by IR, ESR, and analysis of the reaction products. UV irradiation of the photocatalysts at 275 K led to the photocatalytic oxidation of C2H4 withO2 intoCO2, CO, andH2O. The large surface area of the photocatalyst is one of the most important factors in achieving a high ef-ficiency in the photocatalytic oxidation of C2H4. The photo-formed OH species as well as Oˉ2 and Oˉ3 anion radicals play a significant role as a key active species in the complete photocatalytic oxidation of C2H4 with O2 into CO2 and H2O.
photocatalyst, xidation, ethylene.,
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张金龙, Jinlong Zhang, † Masaya Matsuoka, Hiromi Yamashita, and Masakazu Anpo*
Langmuir 1999, 15, 77-82,-0001,():
-1年11月30日
The characteristics of the fluorescence spectra of 2,5-bis(4-diethylaminophenyl)-1, 3, 4-oxadiazole (BDD) doped in Si-Ti binary oxides by the sol-gel method were investigated as a function of time in its transitions from sol to gel to xerogel. The intensity of the fluorescence spectrum decreases with the increase in the Ti content. A characteristic BDD excimer fluorescence was observed during the transition from gel to xerogel only in a mixture of tetraethyl orthosilicate (TEOS) and tetraisopropoxy titanium (TPOT) but not in pure TEOS, indicating that the presence of a tetrahedrally coordinated titanium ion species plays a significant role in the formation of the excimer. A possible model has been proposed for the entrapment process of BDD during the sol to gel to xerogel transitions.
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【期刊论文】Investigations of TiO2 Photocatalysts for the Decomposition of NO in the Flow System
张金龙, Jinlong Zhang, Terukazu Ayusawa, Madoka Minagawa, Kensaku Kinugawa, Hiromi Yamashita, Masaya Matsuoka, and Masakazu Anpo
,-0001,():
-1年11月30日
In order to investigate the photocatalytic stability and/or lifetime of titanium oxide photocatalysts in detail, standard reference photocatalysts (JRC-TIO-2, -3, -4, and -5), of which the surface chemical and physical properties are well known, were studied for the photocatalytic decompositon of NO under a large-scale flow reaction system. In the first stage, the photocatalytic decomposition of NO proceeded with a high efficiency and continuous production of N2, O2, and N2O. However, the reaction efficiency gradually decreased and finally leveled off at constant values. These values were found to be in the order of JRC-TIO-4>-3>-5>-2. Anatase TiO2, with a large surface area and numerous OH groups, was found to exhibit a high efficiency for the decomposition of NO in the flow system. The optimal pretreatment and reaction conditions were observed at a pretreatment temperature around 573 Kunder a mixture of O2 and Ar. It was confirmed that the surface hydroxyl groups on the photocatalysts play an important role in the decomposition of NO under this flow system.
photocatalysis, flow reaction system, decomposition of NO.,
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张金龙, Jinlong Zhang, † Madoka Minagawa, Terukazu Ayusawa, Srinivasan Natarajan, ‡ Hiromi Yamashita, Masaya Matsuoka, and Masakazu Anpo*
J. Phys. Chem. B 2000, 104, 11501-11505,-0001,():
-1年11月30日
Mesoporous materials such as Ti-HMS, prepared at ambient temperature, were studied both under continuous flow and closed reaction systems for the photocatalytic decomposition of NO. The results indicate Ti-HMS to be a good photocatalyst with a continuous reactivity under prolonged irradiation. The direct decomposition of NO into N2, O2, and N2O at 275 K with a high selectivity for N2 and O2 in a closed system is noteworthy. In situ photoluminescence and EXAFS investigations show that the Ti exists in a tetrahedral coordination and is highly dispersed within the mesoporous material. The TPD studies, before and after the photocatalytic investigations, clearly indicate that NO molecules cannot be adsorb strongly on the surface of Ti-HMS photocatalysts, in contrast to the powdered TiO2 photocatalysts, where strong NO adsorption species have been observed. It is likely that the charge transfer excited state of the tetrahedrally coordinated titanium oxide species plays a significant role in the direct decomposition of NO.
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张金龙, Jinlong Zhang, †, ‡ Yun Hu, † Masaya Matsuoka, † Hiromi Yamashita, † Madoka Minagawa, † Hisao Hidaka, § and Masakazu Anpo*
J. Phys. Chem. B 2001, 105, 8395-8398,-0001,():
-1年11月30日
Photocatalysts involving titanium oxides were prepared by an ion-exchange and impregnation method in which zeolites with different Si/Al ratios were used as supports. Those photocatalysts with low Si/Al ratios exhibited high and unique photocatalytic reactivity for the direct decomposition of NO into N2, O2, and N2O at 275K. In situ photoluminescence, diffuse reflectance absorption, and XAFS investigations indicated that the titanium oxide species are highly dispersed within the zeolite and exist in tetrahedral coordination. The charge transfer excited state of these highly dispersed titanium oxide species plays a significant role in the decomposition of NO with a high selectivity for the formation of N2 and O2, while the catalysts involving the aggregated octahedrally coordinated titanium oxide species show a high selectivity to produce N2O, being similar to the reactions observed on the powdered bulk TiO2 photocatalysts.
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【期刊论文】Characteristics of the Phosphorescence Spectra of Benzophenone Adsorbed on Ti-Al Binary Oxides
张金龙, H. Nishiguchi, J.-L. Zhang, † and M. Anpo*
Langmuir 2001, 17, 3958-3963,-0001,():
-1年11月30日
The excited states of benzophenone adsorbed on well-characterized Ti-Al binary oxides were investigated by means of conventional molecular spectroscopic techniques such as UV and IR absorption as well as photoluminescence spectra measurements. Itwasfound that the photochemical and photophysical properties of benzophenone adsorbed on the oxide surfaces strongly depend on their surface properties, which are systematically changed by changing the composition of the oxides. Specifically, the phosphorescence spectra of benzophenone adsorbed on the oxides have been found to be composed of the hydrogen-bonded benzophenone species and the protonated benzophenone species.
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张金龙, H. Nishiguchi, J-L. Zhang, ‡ M. Anpo, * and H. Masuhara†
J. Phys. Chem. B 2001, 105, 3218-3222,-0001,():
-1年11月30日
Ti-Al binary oxides prepared by a coprecipitation method exhibit different chemical behaviors from those of physically mixed TiO2-Al2O3 oxides, and the dispersion of the TiO2 species in the Ti-Al binary oxides increases when the composition of Al of the starting materials is increased. When benzophenone is adsorbed on the Ti-Al binary oxides, the photochemical and photophysical properties of benzophenone are found to be greatly different from those of benzophenone adsorbed on porous silica glass such as Vycor glass. Namely, the phosphorescence properties of benzophenone adsorbed on Ti-Al binary oxides show the presence of the protonated form of benzophenone in addition to the benzophenone hydrogen-bonded to the surface OH groups. The characteristics of the surface properties, structures, and activities of these binary oxides are examined by monitoring the characteristics of the isomerization of cis-2-butene as a probe reaction. The phosphorescence properties of the protonated and hydrogen-bonded form of benzophenone changed with variations in the Ti/Al ratio, exhibiting a good correspondence with the results of the cis-2-butene to 1-butene and cis to trans isomerization reactions of cis-2-butene on the Ti-Al binary oxides, respectively. These good relationships suggest that the double bond shift isomerization reaction of cis-2-butene to 1-butene and the geometrical cis to trans isomerization occur at different sites, that is, the active sites for the cis-2-butene to 1-butene isomerization may be the surface Br
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张金龙, Haijun Chen a, Masaya Matsuoka a, Jinlong Zhang b, Masakazu Anpo a, **
Journal of Catalysis 228(2004)75-79,-0001,():
-1年11月30日
The changes observed in the valence state and local structure of the Cu species present in the Cu ion-exchanged Y zeolite during thermovacuum treatment have been investigated by ESR and photoluminescence techniques. Especially, the reduction behavior of the Cu (II) monomers and Cu (II) dimers which exist in the Y zeolite has been studied according to the changes seen in their ESR spectra during such thermovacuum treatment. Moreover, the mechanism for the formation of the Cu (I) monomers and dimers after thermovacuum treatment has been proposed based on investigations of the deconvoluted photoluminescence spectra.
Y zeolite, Cu (, I), , Reduction of Cu (, II), , Monomer, Dimer
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【期刊论文】The roles of acid in the synthesis of mesoporous titania with bicrystalline structure
张金龙, Shuai Yuan a, Qiaorong Sheng a, Jinlong Zhang a, *, Feng Chen a, Masakazu Anpo b
Materials Letters 58(2004)2757-2760,-0001,():
-1年11月30日
The effects of H+/Ti molar ratio on the formation of mesoporous structure and the phase transition have been investigated, and the mesoporous titania with bicrystalline framework consisting of anatase and rutile was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), BET surface area, and BJH pore size distribution.
Acid, Mesoporous titania, Nanocrystalline framework, Phase transition
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