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Chinese Chemical Letters 2023年第2期34卷 249-253页

作者： Liuyong Chen Qinglin Liu Jun Yang Yinle Li Guangqin Li MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China

Metal-organic framework nanosheets (MOF NNs) offer potential opportunities for many applications,but an efficient strategy for the scalable preparation of few-layered two-dimensional (2D) MOF NNs are still a major ***,we present an efficient top-down method for the synthesis of the Ni-BDC(Ni_(2)(OH)_(2)(1,4-BDC);1,4-BDC=1,4-benzenedicarboxylate) nanosheets utilizing a novel thermal expansionquench method of the flowerlike bulky MOFs in liquid *** obtained Ni-BDC nanosheets exhibit significantly enhanced photocatalytic performance of reductive CO_(2)deoxygenation (7.0μmol h^(-1)mg^(-1)) under visible light illumination compared with the bulky MOFs,due to much higher surface area for CO_(2)adsorption,more abundant active sites exposed and stronger electron transport ability of the *** importantly,this synthetic strategy can be extended to fabricate other MOF nanosheets which also exhibit significantly improved performance for deoxygenative CO_(2)reduction compared to their bulky *** work may provide a guideline for preparing other 2D layered photocatalysts materials to realize energy conversion applications.

关键词： Thermal expansion-quench Metal-organic framework(MOF) Two-dimensional Ni-BDC nanosheets visible light CO_(2)photoreduction

Photocatalytic Activity of Lanthanum and Sulfur Co-doped TiO_2 Photocatalyst under visible light

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Journal of Wuhan University of Technology(Materials Science) 2008年第4期23卷 467-471页

作者： XIA Huili ZHUANG Huisheng XIAO Dongchang ZHANG Tao College of Environmental Science ＆ Engineering Donghua University Sfianghai 201620 China

A novel lanthanum and sulfur co-doped TiO2 photocatalyst was synthesized by precipitation- dipping method, and characterized by X-ray diffraction（XRD）, transmission electron microscopy（TEM） and UV-Vis diffuse reflectance spectroscopy. Compared with the S-doped TiO, La-doped TiO2 and the standard Degussa P25 photocatalysts, the lanthanum and sulfur co-doped TiO2 photocatalyst （the molar percentage of La is 3.0%） calcined at 450 ℃ for 2 h showed the strongest absorption for visible light and highest activities for degradation of reactive blue 19 dye in aqueous solution under visible light（λ〉400 nm） irradiation. It was also discovered that the co-doping of lanthanum and sulfur hindered the aggregation and growth of TiO2 particles, and the doping of lanthanum reduced slightly the phase transition temperature ofTiO2 from anatase to rutile.

关键词： photocatalysis TiO2 co-doping reactive blue 19 visible light

The dynamic covalent reaction based on diselenide-containing crown ether irradiated by visible light

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Chinese Chemical Letters 2021年第6期32卷 2005-2008页

作者： Jie Shang Hanlin Gong Qian Zhang Zhiliyu Cui Shuangran Li Ping Lv Tiezheng Pan Yan Ge Zhenhui Qi Sino-German Joint Research Lab for Space Biomaterials and Translational Technology Synergetic Innovation Center of Biological Optoelectronics and Healthcare Engineering(BOHE)Shaanxi Provincial Synergistic Innovation Center for Flexible Electronics&Health Sciences(FEHS)School of Life SciencesNorthwestern Polytechnical UniversityXi'an 710072China

A novel diselenide-containing crown ether(BC7Se_(2))was fabricated,which can polymerize to form cyclic oligomers through intermolecular dynamic covalent reaction by irradiation of visible *** size and distribution of oligomers are related to the monomer *** decomposition reaction of oligomers is controlled by topology and ***,potassium cation can inhibit the polymerization of BC7Se_(2)and accelerate the decomposition of oligomers.

关键词： Dynamic covalent Crown ether Metathesis reaction visible light Diselenide bond

TEMPO visible light photocatalysis: The selective aerobic oxidation of thiols to disulfides

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Chinese Chemical Letters 2020年第6期31卷 1520-1524页

作者： Hui Xu Yu-Fei Zhang Xianjun Lang Sauvage Center for Molecular Sciences College of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072China

TEMPO(2,2,6,6-tetramethylpipe ridine-1-oxyl)is well-established in orangocatalysis that usually work in synergy with transition-metal catalysis or semiconductor ***,TEMPO was turned into a visible light photocatalyst to conduct the selective aerobic oxidation of thiols into *** O2 as an oxidant,a mild and efficient protocol for the selective oxidation of thiols into disulfides including symmetrical and unsymmetrical ones with 5 mol%of TEPMO as a photocatalyst was developed at room temperature under the irradiation of 460 nm blue *** was found that a complex formed between TEMPO and thiols underpinned the visible light activity and disulfides were obtained in very high isolated *** work suggests that TEMPO takes diverse roles in for photocatalytic selective oxidative transformations with O2 as the oxidant.

关键词： Radical visible light TEMPO Aerobic oxidation Disulfides

Simultaneously Enhanced Activity and Selectivity for C(sp^(3))-H Bond Oxidation Under visible light by Nitrogen Doping

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Transactions of Tianjin University 2021年第4期27卷 331-337页

作者： Tingting Hou Zhuyan Gao Jian Zhang Nengchao Luo Feng Wang School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou 510640China State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China

Selective oxidation of saturated C(sp^(3))-H bonds in hydrocarbon to target chemicals under mild conditions remains a signifi-cant but challenging task because of the chemical inertness and high dissociation energy of C(sp^(3))-H *** photocatalysis can induce the generation of holes and oxidative radicals,off ering an alternative way toward selective oxidation of hydrocarbons under ambient ***,we constructed N-doped TiO_(2) nanotubes(N-TNTs)that exhibited remark-able activity and selectivity for toluene oxidation under visible light,delivering the conversion of toluene and selectivity of benzaldehyde of 32% and>99%,*** mechanistic studies demonstrated that the incorporation of nitrogen induced the generation of N-doping level above the O 2p valance band,directly contributing to the visible-light response of TiO_(2).Furthermore,hydroxyl radicals generated by photogenerated holes at the orbit of O 2p were found to be unselective for the oxidation of toluene,aff ording both benzaldehyde and benzoic *** incorporation of nitrogen was able to inhibit the generation of hydroxyl radicals,terminating the formation of benzoic acid.

关键词： visible light c(sp^(3)) H oxidation N-doped TiO_(2) Selectivity Benzaldehyde

Effects of visible light on Cultured Bovine Trabecular Cells

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2004年第2期24卷 178-180,184页

作者：姜发纲郝风芹魏厚仁许德胜 Department of Ophthalmology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 ChinaState Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430022 China Department of Ophthalmology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China Department of Ophthalmology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430022 China

To explore the biological effects of light on trabecular cells, cultured bovine trabecular cells were exposed to visible light of different wavelength with different energy. Cellular morphology, structure, proliferation, and phagocytosis were observed. The cells showed no remarkable changes when the energy was low. When the exposure energy reached 1.12 mW/cm 2, the cytoplasm showed a rough appearance, and cell proliferation and phagocytosis decreased. This phototoxicity was strong with white light (compound chromatic light), moderate with violet light or yellow light, and mild with red light.

关键词： visible light trabecular cells proliferation phagocytosis

Bioinspired C/TiO_2 photocatalyst for rhodamine B degradation under visible light irradiation

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Frontiers of Agricultural Science and Engineering 2017年第4期4卷 459-464页

作者： Jian LI Likun GAO Wentao GAN Key Laboratory of Biobased Material Science & Technology of the Education Ministry Northeast Forestry University Research Center of Wood Bionic Intelligent Science Northeast Forestry University

Papilio paris butterfly wings were replicated by a sol-gel method and a calcination process, which could take advantage of the spatial features of the wing to enhance their photocatalytic properties. Hierarchical structures of P. paris-carbon-TiO_2(PP-C-TiO_2) were confirmed by SEM observations. By applying the Brunauer-Emmett-Teller method, it was concluded that in the presence of wings the product shows higher surface area with respect to the pure TiO_2 made in the absence of the wings. The higher specific surface area is also beneficial for the improvement of photocatalytic ***, the conduction and valence bands of the PPC-TiO_2 are more negative than the corresponding bands of pure TiO_2, allowing the electrons to migrate from the valence band to the conduction band upon absorbing visible light. That is, the presence of C originating from wings in the PP-C-TiO_2 could extend the photoresponsiveness to visible light. This strategy provides a simple method to fabricate a high-performance photocatalyst,which enables the simultaneous control of the morphology and carbon element doping.

关键词： bioinspired butterfly wings C/TiO2 photocatalyst visible light

Effect of Cobalt Precursor on Microstructures and visible light Photoactivity of Doped TiO2 Powders

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Chinese Journal of Chemical Physics 2006年第5期19卷 463-468页

作者： Jing-ying Shi Wen-hua Leng Jiang-lin Cao Jian-qing Zhang Chu-nan Cao Department of Chemistry Yuquan Campus Zhejiang University Hangzhou 310027 China Department of Chemistry Quanzhou Normal College Quanzhou 352000 China

In order to develop photoactive cobalt-doped TiO2 for the degradation of organic pollutants using visible light irradiation, the effects of cobalt precursor on TiO2 microstructure were investigated. Three cobaltprecursors, i.e. COCl2, Co（NO3）2 and COSO4 with two doping levels （nominally 1% and 10%）, and two annealing temperatures （400 and 800 ℃） were adopted to prepare tile doped titania through the sol-gel method. The powder samples were characterized with XRD, SEM, BET surface area analysis and UV-Vis absorption spectroscopy, and their photocatalytic activities were evaluated by the degradation of aniline under visible light irradiation. The results showed that the distribution of titania phases, particle size, morphology, surface area and the optical absorption of the catalysts were greatly dependent on the cobalt precursors. Samples prepared from Co（NO3）2, especially for those doped at 1% and calcined at 400 ℃, showed the highest photocatalytic activity towards the degradation of aniline, and the possible reasons are discussed briefly.

关键词： Cobalt precursor Doped titania Photocatalysis visible light

C3N4 modified with single layer ZIF67 nanoparticles for efficient photocatalytic degradation of organic pollutants under visible light

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Chinese Journal of Catalysis 2020年第12期41卷 1894-1905页

作者： Peidong Su Junke Zhang Ke Xiao Shen Zhao Ridha Djellabi Xuewei Li Bo Yang Xu Zhao College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060GuangdongChina Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Department of Civil and Environmental Engineering Jackson State UniversityJacksonMS 39217USA

Uniformly distributed single layer of ZIF67-derived C3N4(ZIF67-C3N4)was synthesized and applied to the photocatalytic degradation of methylene blue(MB)under visible *** indicated that the obtained ZIF67-C3N4 has a maximum specific surface area of 541.392 m^2/g,which is much larger than that of raw C3N4 of 97.291 m^2/*** investigation of C3N4 amount involved in ZIF67-C3N4 on the photoactivity revealed that 2.57 g ZIF67 with 0.3 g C3N4,which named ZIF67-C3N4(0.3)exhibited superior photocatalytic *** than 90%of MB at 10 mg/L was degraded within 70 min with the addition of 0.01 g ZIF67-C3N4(0.3),while this time required for raw C3N4 was over 140 *** effects of pH of solution,initial concentration of MB and dosage of C3N4 in ZIF67-C3N4 composites on the photocatalytic efficiency for MB degradation were also *** experiments indicated that the photo-induced holes(h^+)and superoxide radicals(O2-·)were mainly responsible for MB *** is anticipated that the insertion of ZIF67 nanoparticles not only increases the adsorption capacity of C3N4 but also promotes the generation and migration of the photo-induced active species.

关键词： Metal organic frameworks Photocatalysis C3N4 ZIF67 visible light

Electrodeposition of Cu_2O/g-C_3N_4 heterojunction film on an FTO substrate for enhancing visible light photoelectrochemical water splitting

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Chinese Journal of Catalysis 2017年第2期38卷 365-371页

作者：张声森晏洁杨思源徐悦华蔡欣张向超彭峰方岳平华南农业大学材料与能源学院广东广州510643 华南理工大学化学与化工学院广东广州510641 长沙学院环境光催化应用技术湖南省重点实验室湖南长沙410022

An immobilized Cu2O/g-C3N4 heterojunction film was successfully made on an FTO substrate by electrophoretic deposition of g-C3N4 on a Cu2O thin *** photoelectrochemical（PEC） performance for water splitting by the Cu2O/g-C3N4 film was better than pure g-C3N4 and pure Cu2O ***-0.4 V external bias and visible light irradiation,the photocurrent density and PEC hydrogen evolution efficiency of the optimized Cu2O/g-C3N4 film was-1.38 mA/cm^2 and 0.48 mL h^-1 cm^-2,*** enhanced PEC performance of Cu2O/g-C3N4 was attributed to the synergistic effect of light coupling and a matching energy band structure between g-C3N4 and Cu2O as well as the external bias.

关键词： Cuprous oxide Graphitic carbon nitride Heterojunction film Electrodeposition visible light Photoelectrochemical water splitting Hydrogen evolution