Jinsheng Zheng

Dongfang Electric Corporation (China)

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Zhang Lin

Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution

Feng Huang

Hangzhou Dianzi University

Yibing Zhao

Collaborative Innovation Center of Chemistry for Energy Materials

Jinping Lai

Pennsylvania State University

Chuanliu Wu

Xiamen University

Xiaogang Xue

Guilin University of Electronic Technology

Jing Zhang

Chinese Academy of Sciences

Yonghao Wang

Ningbo University

Dongsong Li

First Hospital of Jilin University

Chen Chen

Xiamen University

Cooperative Institutions

Chinese Academy of Sciences

Fujian Institute of Research on the Structure of Matter

Xiamen University

Fuzhou University

Central South University

Institute of High Energy Physics

Zhejiang University

Zhejiang Sci-Tech University

State Council of the People's Republic of China

University of Chinese Academy of Sciences

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Correlation between the Photoluminescence and Oriented Attachment Growth Mechanism of CdS Quantum Dots

Journal of the American Chemical Society (2010)

Jinsheng Zheng Feng Huang Shun‐Gao Yin Yongjing Wang Zhang Lin

Water-soluble mercaptoacetic acid-coated 3.1 nm CdS quantum dots (QDs) with two concentrations were selected for studying the correlation between the photoluminescence and the crystal growth mechanism. By achieving the classic Ostwald ripening mechanism and oriented attachment (OA) growth mechanism, we have shown that the evolution of the emission spectra were obviously different. The change in both the surface and internal defects during OA crystal growth were responsible for the specific variation of the photoluminescence of CdS QDs. Strategies for obtaining QDs with different luminescent properties are suggested.

Ostwald ripening

Crystal (programming language)

10.1021/ja101848w

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Citations (56)

Fluorescent core-shell silicananoparticles as tunable precursors: towards encoding and multifunctional nano-probes

Chemical Communications (2007)

Chuanliu Wu Jinqing Hong Xiang-Qun Guo Chaobiao Huang Jinping Lai

Core-shell silica nanoparticles comprised of a RuBpy doped silica core and a Pas-DTPA doped silica shell were synthesized and post-functionalized with an encoding fluorescence combination and multiplex imaging function.

10.1039/b717038f

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Citations (51)

Radical macro spatial separation: a novel way to enhance the photocatalytic efficiency

RSC Advances (2015)

Fengpo Yan Jinsheng Zheng Xiaogang Xue Jiye Zhang Feng Huang

Radical macro spatial separation can be achieved via a new photocatalytic system and significantly improved the photocatalytic efficiency.

Macro

Separation (statistics)

10.1039/c5ra00882d

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Citations (1)

Oriented Attachment Kinetics for Ligand Capped Nanocrystals: Coarsening of Thiol-PbS Nanoparticles

The Journal of Physical Chemistry B (2007)

Jing Zhang Yonghao Wang Jinsheng Zheng Feng Huang Dagui Chen

In this work, the growth kinetics of thiol-capped PbS nanoparticles was studied. Two-stage growth process was observed, which was controlled first by oriented attachment (OA) mechanism and then by the hybrid Ostwald ripening (OR) and OA mechanism. Different from the NaOH-ZnS system, where OA will occur between any two multilevel nanoparticles, an OA kinetic model only considering the attachment related to original particles was fitted well with the experimental results. Analysis reveals that this model may be a universal one to describe the OA crystal growth process of nanocrystals capped with easily destroyed ligands, such as thiol-ZnS in the previous report. The OA crystal growth characteristics determined by the surface agent were discussed and compared. We propose that with stronger surface capping, the OR growth of nanocrystals is hindered, which facilitates the size controlling via OA kinetics during nanosynthesis.

Ostwald ripening

Thiol

10.1021/jp067040v

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Citations (72)

LSPR Sensing of Molecular Biothiols Based on Noncoupled Gold Nanorods

Langmuir (2010)

Chong Li Chuanliu Wu Jinsheng Zheng Jinping Lai Chenlong Zhang

Au NRs protected with mPEG-SH molecules (mPEG-Au NRs) were demonstrated to be a promising platform for LSPR-based sensing of molecular biothiols in aqueous solution. Surface mPEG-SH molecules endow Au NRs with great stability and biocompatibility and no nonspecific adsorption of biomacromolecules. The LSPR band of mPEG-Au NRs displays a stability and linear response in the spectral shift with respect to a change in their surrounding refractive index with a sensitivity of 252 nm/RIU. The loose structure of mPEG-SH around the Au NRs offers free sites, thereby allowing molecular biothiols to bind onto the surfaces of Au NRs. The LSPR response and the sensitivity of Au NRs to biothiols such as GSH, Cys, Hcy, TGA, GSSG, and BSA were then studied.

Nanorod

Biocompatibility

10.1021/la101285r

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Citations (53)

In Situ Conversion of ZnO Microsphere from ZnS Complex Microstructure and Photocatalytic Study

Journal of Nanoscience and Nanotechnology (2012)

Dongsong Li Yongjing Wang Yansong Xiong Jinsheng Zheng Zhang Lin

Precursor ZnS complex microstructure, synthesized under concentrated NaOH solution, was annealed at different temperatures to fabricate self-supported ZnO microstructure with large-scale yield. The crystal structure, morphology and chemical compositions of the as-prepared ZnO nanoparticles were examined by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Brunauer-Emmett-Teller specific surface area (BET). The experimental results show that the obtained ZnO microsphere keeps an intact self-supported structure even after high temperature annealing and the XRD observation indicates that the crystal lattice becomes more integrated along with the elevation of annealing temperature. We further investigated the photocatalytic property towards eosin B and found that the photocatalytic property seems to be closely related to crystallinity of the lattice. As the crystallinity enhances, the photocatalytic performance of the ZnO self-supported microsphere becomes significantly better. Overall, the investigation indicates that we have prepared a novel kind of self-supported ZnO microsphere photocatalyst with the merit of mass production and high catalytic efficiency.

10.1166/jnn.2012.6565

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Citations (4)

Schottky or Ohmic Metal–Semiconductor Contact: Influence on Photocatalytic Efficiency of Ag/ZnO and Pt/ZnO Model Systems

ChemSusChem (2013)

Fengpo Yan Yonghao Wang Jiye Zhang Zhang Lin Jinsheng Zheng

The relationship between the contact type in metal-semiconductor junctions and their photocatalytic efficiencies is investigated. Two metal-semiconductor junctions, silver on zinc oxide (Ag/ZnO) and platinum on zinc oxide (Pt/ZnO) serve as model system for Ohmic and Schottky metal-semiconductor contact, respectively. Ag/ZnO, with Ohmic contact, exhibits a higher photocatalytic efficiency than Pt/ZnO, with Schottky contact. The direction of electric fields within the semiconductor is found to play a crucial role in the separation of photogenerated charges, and thus strongly influences the photocatalytic efficiency.

Ohmic contact

Metal–semiconductor junction

Wide-bandgap semiconductor

10.1002/cssc.201300818

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Citations (119)

Light-triggered covalent assembly of gold nanoparticles in aqueous solution

Chemical Communications (2011)

Jinping Lai Yun‐Yan Xu Xue Mu Xiaoli Wu Chong Li

UV light irradiation triggers Au NPs that are respectively functionalized on the surface by o-nitrobenzyl alcohol and benzylamine to proceed with a covalent ligation reaction, which leads to assembling of Au NPs into anisotropic one-dimensional (1D) arrays in aqueous solution viaindazolone linkages.

Benzylamine

10.1039/c0cc03361h

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Citations (37)

New evidence of a thermodynamically stable nanophase: CdS in 4 M KOH–tert-butanol solution

CrystEngComm (2014)

Jinsheng Zheng Xiaogang Xue Dongsong Li Yibing Zhao

Thermodynamically stable nanophases have been confirmed as an important technical means of nano-synthesis.

n-Butanol

10.1039/c4ce01901f

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Citations (3)