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Carbon quantum dots modified TiO_(2) composites for hydrogen production and selective glucose photoreforming

Journal of Energy Chemistry 2022年第1期31卷 201-208,I0006页

作者： Heng Zhao Xinti Yu Chao-Fan Li Wenbei Yu Aiguo Wang Zhi-Yi Hu Steve Larter Yu Li Md Golam Kibria Jinguang Hu Department of Chemical and Petroleum Engineering University of Calgary2500 University DriveNWCalgaryAlberta T2N 1N4Canada State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Nanostructure Research Centre Wuhan University of Technology.Wuhan 430070Hubei.China Department of Geosciences University of Calgary2500 University DriveNWCalgaryAlberta T2N 1N4Canada

Lignocellulosic biomass photoreforming is a promising and alternative strategy for both sustainable H_(2) production and biomass valorization with infinite solar ***,harsh reaction conditions(high alkalinity or toxic organic solvents),with low biomass conversion and selectivity are often reported in *** this work,we report glucose photoreforming for coproduction of H_(2) and arabinose with improved selectivity under neutral condition using carbon quantum dots(CQDs)modified TiO_(2) *** show that the conventional CQDs fabricated by a facile one-step hydrothermal process could be endowed with novel color changing property,due to the particle aggregation under the regulation of incident *** as-fabricated CQDs/TiO_(2) composites with certain colored CQDs could greatly improve glucose to arabinose conversion selectivity(-75%)together with efficient hydrogen evolution(up to 2.43 mmolh^(-1)g^(-1))in *** arabinose is produced via the direct C1-C2 α-scissions mechanism with reactive oxygen species of·O_(2)^(-) and·OH,as evidenced by ^(13)C labeled glucose and the electron spin-resonance(ESR)studies,*** work not only sheds new lights on CQDs assisted photobiorefinery for biomass valorization and H_(2) coproduction,but also opens the door for rationale design of different colored CQDs and their potential applications for solar energy utilization in the noble-metal-free system.

关键词： CQDs size regulation Hydrogen production Glucose photoreforming Arabinose

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Co-solvent polarity controlled self-assembly of tetraphenylethylene-buried amphiphile for size-regulated tumor accumulation

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Regenerative Biomaterials 2018年第5期5卷 275-282页

作者： Jingsheng Huang Yun Chen Pengxiang Zhao Yunlong Yu Shiyong Zhang Zhongwei Gu National Engineering Research Center for Biomaterials Sichuan University29 Wangjiang RoadChengdu 610064China Science and Technology on Surface Physics and Chemistry Laboratory Mianyang 621907China College of Materials Science and Engineering Nanjing Tech UniversityNanjingJiangsu 210009China

We report that the co-solvent polarity can precisely control the TPE-buried amphiphile 1 to selfassemble into nanoparticles(NPs)in water with size range from21–32nm to 55–68nm to 95–106 *** for size,these TPE-buried amphiphile fabricated NPs hold identical physical properties such as spherical shape,surface charge,and luminescent properties,and moreover,after covalent capture of the acrylate hydrophilic heads,the resulting cross-linked NPs(cNPs I–III)own excellent in vivo stability,which thus would be an ideal platform for investigating the size effects on tumor accumulation and penetration.

关键词： polarity control aggregation-induced emission size regulation tumor accumulation

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Temperature-Dependent Growth of Ordered ZnO Nanorod Arrays

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Journal of Donghua University(English Edition) 2022年第2期39卷 140-145页

作者： ZHANG Liangwei YAN Yali WANG Jiale College of Science Donghua UniversityShanghai 201620China

Ordered ZnO nanorod arrays were epitaxially grown on GaN substrates by a hydrothermal *** patterned template was made by transferring a self-assembled close-packed monolayer of polystyrene(PS)nanospheres onto GaN *** magnetron sputtering of SiO_(2)was used to mediate the size of PS nanospheres by plasma etching and form periodic seed sites for the following ZnO *** was observed that the size of ZnO nanorods could be varied by changing the temperature of hydrothermal growth,and the relationship between height and diameter of nanorods versus growth temperature was *** work provides a potential low-cost hydrothermal method for the preparation of ordered semiconductor nanorod arrays.

关键词： ZnO nanorod array hydrothermal method size regulation

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