Shanghai, China

East China University of Science and Technology is a research university located in Shanghai, China. Originally established as a institution highly specialized in the field of chemistry, it has evolved into a comprehensive university that covers all academic disciplines and offers a large variety of majors. The school encompasses two campuses and a science park in the Xuhui, Fengxian and Jinshan districts of Shanghai. Wikipedia.

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East China University of Science and Technology | Date: 2014-04-23

Methods and systems for producing isosorbide from biomass are disclosed. In one embodiment, a method of producing isosorbide from biomass may include contacting biomass, a catalyst mixture of a noble metal and a first solid acid, and hydrogen to form a first reaction mixture, and heating the first reaction mixture to form at least one intermediate compound. Further, the intermediate compound is contacted with a second solid acid to form a second reaction mixture, and heating the second reaction mixture to form isosorbide.

East China University of Science and Technology | Date: 2014-05-14

Catalysts and methods for making cyclic carbonates are disclosed. The catalyst may include at least one polymer quaternary ammonium salt, at least one metal halide and silica gel. The method of making the cyclic carbonates may include forming a mixture that includes the catalyst and an epoxide, and contacting the mixture with carbon dioxide in a reactor under conditions to form the propylene carbonate.

East China University of Science and Technology | Date: 2014-07-21

The present invention relates to a method and a device for deep oil removal from wastewater containing a low concentration of wasteoil. Wastewater containing a low concentration of wasteoil enters the device via an inlet and passes through a flow conditioner, causing the fluid to become uniformly distributed. Then, by means of a layer of oleophilic-hydrophobic fibers and hydrophilic-oleophobic fibers woven in a certain manner, a trace of oil droplets are captured and then coalesce and grow on the layer, and a trace of oil-in-water emulsion is demulsified and separated on the layer. Finally, by means of corrugation-enhanced sedimentation and separation, the oil droplets coalesce and grow and are then separated rapidly. The invention also provides a set of devices for implementing the method, having several parts such as a housing, a feed pipe, a flow conditioner, a fiber coalescence layer, a corrugation-enhanced separation layer, and a level gauge. The present technique is highly efficient in separation, consumes little power, and can operate continuously for a long period of time. Thus, this technique can be widely used in processes for treating wastewater containing a low concentration of wasteoil.

Shi J.,CAS Shanghai Institute of Ceramics | Shi J.,East China University of Science and Technology | Shi J.,CAS Institute of Process Engineering
Chemical Reviews | Year: 2013

The heterogeneous catalytic performance is largely dependent on the catalyst nanostructures or, in another word, processing technologies, in addition to the intrinsic physical and chemical properties of the constitutive components. Compared to the amorphous framework of mesoporous silica, mesoporous metal oxides synthesized by a hard templatereplicating method usually have a crystallized structure and exhibit excellent catalytic activities, as reported in many documents. The loading or dispersion of catalytically active guest species into the host mesopore network results in mesostructured composites of a crystallized framework and highly dispersed catalytic species in its mesopore network. Mesoporous inorganic oxide materials, in the form of either powder or thin film, with high surface areas, ordered pore structures, finely tunable pore sizes, and flexible wallcompositions have been investigated widely of their chemical synthesis and potential applications in catalysis, adsorption, chemical sensing, electrochemistry, biomedical areas, and so on.

Tian H.,East China University of Science and Technology
Angewandte Chemie - International Edition | Year: 2010

(Figure Presented) En route to bits and bytes: The integration of complex logic functions within individual molecules allows data processing at the molecular level, as demonstrated by recently reported molecular encoder and decoder devices. This research on decision-making molecules has great potential for future applications and more complex computing on a functional unimolecular platform. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Ma W.,East China University of Science and Technology | Long Y.-T.,East China University of Science and Technology
Chemical Society Reviews | Year: 2014

Quinones/hydroquinones (Q/HQ) are a class of prototypical redox molecules that play a variety of vital roles in biology, particularly in electron transfer and energy conservation systems. Biointerfaces supported on solid substrates or nanomaterials are widely used as biomimetic platforms that connect biological materials with artificial interfaces. Q/HQ-functionalized biointerfaces provide a new means for understanding the complex behaviors of Q/HQ at the interfaces of biological systems, and for further development of novel biomaterials and biosensors. This tutorial review provides a brief introduction to the recent advances in this field. We begin with the current methods used to functionalize Q/HQ on biointerfaces from the macro- to nano-scale (both solid substrates and nanomaterials), and then discuss their wide biological applications. Particularly exciting applications arise when Q/HQ-functionalized biointerface systems are coupled with biomimetic strategies. These systems can be used as models of other functionalized biointerfaces for biological applications, providing new insights into the future development of this area. © 2014 The Royal Society of Chemistry.

Ma X.,East China University of Science and Technology | Tian H.,East China University of Science and Technology
Accounts of Chemical Research | Year: 2014

ConspectusAiming to construct various novel supramolecular polymeric structures in aqueous solution beyond small supramolecular self-assembly molecules and develop functional supramolecular polymeric materials, research interest on functional supramolecular polymers has been prevailing in recent years. Supramolecular polymers are formed by bridging monomers or components together via highly directional noncovalent interactions such as hydrogen bonding, hydrophobic interaction, π-π interaction, metal-ligand coordination, electrostatic interaction, and so forth. They can be easily functionalized by employing diverse building components with specific functions besides the traditional polymeric properties, a number of which are responsive to such external stimuli as pH variance, photoirradiation, chemically or electrochemically redox with the controllable conformation or construction switching, polymerization building and rebuilding, and function adjustment reversibly owing to the reversibility of noncovalent interactions. Supramolecular polymers are "soft matters" and can be functionalized with specific properties such as morphology adjustment, controllable luminescence, shape memory, self-healing, and so forth. Supramolecular polymers constructed based on macrocycle recognition and interlocked structures represent one typical branch of the supramolecular polymer family. Cyclodextrin (CD), cucurbituril (CB), and hydrophilic calixarene derivatives are usually employed to construct hydrophilic supramolecular polymers in aqueous solution. Stimuli-responsive hydrophilic supramolecular polymers, constructed in aqueous solution particularly, can be promising candidates for mimicking biocompatible or vital functional materials.This Account mainly focuses on the recent stimuli-responsive supramolecular polymers based on the host-guest interaction in aqueous solution. We describe the hydrophilic supramolecular polymers constructed via hydrophobic effects, electrostatic interaction, metal-ligand coordination, and multiple combinations of the above noncovalent interactions. The disparate ways to engender stimuli-responsive supramolecular polymers via the hydrophobic effects of α-CD, β-CD, and γ-CD macrocycles are illustrated and discussed. Some recent works on CD-based photoresponsive functional supramolecular polymers are summarized. CB (especially CB[8]) based supramolecular polymers and their pH-responsive and photoresponsive properties are introduced. Hydrophilic calixarene derivative (bis(p-sulfonatocalix[4]arene) typically) based supramolecular polymers via electrostatic interactions are reviewed, and their redox-responsive association/disassociation elaborated in detail. More complicate supramolecular polymers based on multiple noncovalent interactions are illustrated including hydrophobic effect, metal-ligand coordination, and electrostatic interactions and their functional stimuli-responsiveness elaborated as well. Finally, we give perspectives on the strength of these diverse noncovalent interactions to form supramolecular polymers in aqueous solution, on the advantage, disadvantage, efficiency, and reversibility of using certain stimuli in constructing supramolecular polymers and prospect the future function improvement of these polymers as functional materials. © 2014 American Chemical Society.

Wu Y.,East China University of Science and Technology | Zhu W.,East China University of Science and Technology
Chemical Society Reviews | Year: 2013

The high performance and low cost of dye-sensitized solar cells (DSSCs) have drawn great interest from both academic and industrial circles. The research on exploring novel efficient sensitizers, especially on inexpensive metal-free pure organic dyes, has never been suspended. The donor-π bridge-acceptor (D-π-A) configuration is mainstream in the design of organic sensitizers due to its convenient modulation of the intramolecular charge-transfer nature. Recently, it has been found that incorporation of additional electron-withdrawing units (such as benzothiadiazole, benzotriazole, quinoxaline, phthalimide, diketopyrrolopyrrole, thienopyrazine, thiazole, triazine, cyanovinyl, cyano- and fluoro-substituted phenyl) into the π bridge as internal acceptors, termed the D-A-π-A configuration, displays several advantages such as tuning of the molecular energy levels, red-shift of the charge-transfer absorption band, and distinct improvement of photovoltaic performance and stability. We apply the D-A-π-A concept broadly to the organic sensitizers containing additional electron-withdrawing units between electron donors and acceptors. This review is projected to summarize the category of pure organic sensitizers on the basis of the D-A-π-A feature. By comparing the structure-property relationship of typical photovoltaic D-A-π-A dyes, the important guidelines in the design of such materials are highlighted. This journal is © The Royal Society of Chemistry.

Chu C.,East China University of Science and Technology | Liu R.,East China University of Science and Technology
Chemical Society Reviews | Year: 2011

With the increasing requirement for analysis and separation of samples related to genomics, proteomics, metabolomics, pharmacology and agrochemistry, diverse stationary phases for liquid chromatography have been prepared by Cu(i)-catalyzed 1, 3-dipolar azide-alkyne cycloaddition reaction (CuAAC). It has been proved that CuAAC is a powerful tool for preparing covalently bonded stationary phases. In this tutorial review, we highlighted the preparation of separation materials by immobilization of functional groups on silica beads, polymer beads and agarose via CuAAC and their applications in liquid chromatography and related purposes, such as separation of polar compounds, enrichment of valuable bio-samples, orthogonal two-dimensional HPLC and chiral separation. Meanwhile, agarose-based separation materials for affinity chromatography are reviewed. © 2011 The Royal Society of Chemistry.

Ma X.,East China University of Science and Technology | Tian H.,East China University of Science and Technology
Chemical Society Reviews | Year: 2010

As a hot topic in research, various rotaxanes continue to be constructed. This tutorial review focuses mainly on bright rotaxanes with functional properties, which have been developed in recent years: fluorescent rotaxanes, rotaxanes as logic gates and information storage devices, gelation of rotaxanes, rotaxanes on solid surfaces, sensory rotaxanes, as well as rotaxanes related to biology and so on. Novel synthetic protocols towards several functional rotaxanes are also illustrated. © 2010 The Royal Society of Chemistry.

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