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Performance and synergistic effect of phenolic and thio antioxidants in ABS graft copolymers

Gongsheng LI, Xuhong GUO, Wang NA, Diancheng HAO, Mingyao ZHANG, Huixuan ZHANG, Jun XU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 26-34 doi: 10.1007/s11705-010-0531-8

Abstract: The synergistic effect of phenolic and thio antioxidants on the stabilization of acrylonitrile-butadiene-styreneThe results indicated that the combination of Irganox245 and DLTP showed much better stabilization effectthan the individual components due to the strong synergistic effect.

Keywords： antioxidant     ABS graft copolymers     synergistic effect    

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Application of MoS in the space environment: a review

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0755-1

Abstract: The synergistic lubrication of MoS2 with surface textures or metals is presented.

Keywords： MoS2     soft metal     space environment     surface texture     synergistic effect     vibration    

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Electrocatalytic biofilm reactor for effective and energy-efficient azo dye degradation: the synergisticeffect of MnO/Ti flow-through anode and biofilm on the cathode

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 4, doi: 10.1007/s11783-023-1649-5

Abstract:

● MnO x /Ti flow-through anode was coupled with the biofilm-attached cathode in ECBR.

Keywords： Azo dye removal     Electrocatalytic biofilm reactor     Anodic oxidation     Electricity-stimulated biodegradation     Energy consumption    

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Enhanced activity of bimetallic Fe-Cu catalysts supported on ceria toward water gas shift reaction: synergisticeffect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1962-1972 doi: 10.1007/s11705-023-2359-z

Abstract: Within the “hydrogen chain”, the high-temperature water gas shift reaction represents a key step to improve the H2 yield and adjust the H2/COx ratio to fit the constraints of downstream processes. Despite the commercial application of the high-temperature water gas shift, novel catalysts characterized by higher intrinsic activity (especially at low temperatures), good thermal stability, and no chromium content are needed. In this work, we propose bimetallic iron-copper catalysts supported on ceria, characterized by low active phase content (iron oxide + copper oxide < 5 wt %). Fresh and used samples were characterized by inductively coupled plasma mass spectrometry, X-ray diffraction, nitrogen physisorption, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, and temperature programmed reduction in hydrogen to relate physicochemical features and catalytic activity. The sample with iron/copper ≈ 1 and 4 wt % active phase content showed the best catalytic properties in terms of turnover frequency, no methane formation, and stability. Its unique properties were due to both strong iron-copper interaction and strong metal-support interaction, leading to outstanding redox behavior.

Keywords： water gas shift     iron     copper     bimetallic catalysts     ceria     hydrogen    

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Synergistic effect of V and Fe in Ni/Fe/V ternary layered double hydroxides for efficient and durable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 102-115 doi: 10.1007/s11705-022-2179-6

Abstract: The outstanding OER performance of NiFeV-LDH benefits from the synergistic effect of V and Fe while doping

Keywords： oxygen evolution reaction     electrocatalysts     ternary layered double hydroxides     long-term stability    

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Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 623-632 doi: 10.1007/s11783-011-0334-2

Abstract: Effect of pH ranging from 4.0 to 11.0 on co-fermentation of waste activated sludge (WAS) with food wastesolids (VSS) reduction of 16.6% for the mixture of WAS and food waste than the sole WAS indicated a synergisticeffect existing in fermentation system with WAS and food waste.

Keywords： waste activated sludge (WAS)     food waste     co-fermentation     short-chain fatty acids (SCFAs)     pH     synergisticeffect    

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Exceptionally flame-retardant flexible polyurethane foam composites: synergistic effect of the silicone

Qian Wu, Jincheng Zhang, Shengpeng Wang, Bajin Chen, Yijun Feng, Yongbing Pei, Yue Yan, Longcheng Tang, Huayu Qiu, Lianbin Wu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 969-983 doi: 10.1007/s11705-020-1988-8

Abstract: A facile strategy was developed to fabricate flexible polyurethane (PU) foam composites with exceptional flame retardancy. The approach involves the incorporation of graphene oxide (GO) into a silicone resin (SiR) solution, which is then deposited onto a PU foam surface via the dip-coating technique and cured. Fourier-transform infrared spectroscopy, scanning electron microscopy, and Raman spectroscopy measurements demonstrated that the SiR and GO were successfully coated onto the PU skeleton and the intrinsic porous structure of the PU foam remained intact. The effects of SiR and GO on the mechanical and thermal stability and flame retardancy of PU composites were evaluated through compression tests, thermogravimetric analysis, vertical combustion tests, and the limiting oxygen index. The measurement results revealed that the composites (PU@SiR-GO) showed superior flame retardancy and thermal and mechanical stability compared to pristine PU or PU coated with SiR alone. The mechanical and thermal stability and the flame-retardant properties of the PU composites were enhanced significantly with increasing GO content. Based on the composition, microstructure, and surface morphology of PU@SiR-GO composites before and after combustion tests, a possible flame-retardance mechanism is proposed. This work provides a simple and effective strategy for fabricating flame-retardant composites with improved mechanical performance.

Keywords： flame retardancy     flexible polyurethane foam     graphene oxide     silicone resin    

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Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water splitting

Yueqing Wang, Jintao Zhang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 838-854 doi: 10.1007/s11705-018-1746-3

Abstract: Water splitting is a highly promising approach for the generation of sustainable, clean hydrogen energy. Tremendous efforts have been devoted to exploring highly efficient and abundant metal oxide electrocatalysts for oxygen evolution and hydrogen evolution reactions to lower the energy consumption in water splitting. In this review, we summarize the recent advances on the development of metal oxide electrocatalysts with special emphasis on the structural engineering of nanostructures from particle size, composition, crystalline facet, hybrid structure as well as the conductive supports. The special strategies relay on the transformation from the metal organic framework and ion exchange reactions for the preparation of novel metal oxide nanostructures with boosting the catalytic activities are also discussed. The fascinating methods would pave the way for rational design of advanced electrocatalysts for efficient water splitting.

Keywords： water splitting     structure engineering     metal organic framework     ion exchange     synergistic effect     hybrid    

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Fabrication of highly efficient Bi

Wei Mao, Lixun Zhang, Tianye Wang, Yichen Bai, Yuntao Guan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1344-8

Abstract: Abstract • A novel Bi2WO6/CuS composite was fabricated by a facile solvothermal method. • This composite efficiently removed organic pollutants and Cr(VI) by photocatalysis. • The DOM could promoted synchronous removal of organic pollutants and Cr(VI). • This composite could be applied at a wide pH range in photocatalytic reactions. • Possible photocatalytic mechanisms of organic pollutants and Cr(VI) were proposed. A visible-light-driven Bi2WO6/CuS p-n heterojunction was fabricated using an easy solvothermal method. The Bi2WO6/CuS exhibited high photocatalytic activity in a mixed system containing rhodamine B (RhB), tetracycline hydrochloride (TCH), and Cr (VI) under natural conditions. Approximately 98.8% of the RhB (10 mg/L), 87.6% of the TCH (10 mg/L) and 95.1% of the Cr(VI) (15 mg/L) were simultaneously removed from a mixed solution within 105 min. The removal efficiencies of TCH and Cr(VI) increased by 12.9% and 20.4%, respectively, in the mixed solution, compared with the single solutions. This is mainly ascribed to the simultaneous consumption electrons and holes, which increases the amount of excited electrons/holes and enhances the separation efficiency of photogenerated electrons and holes. Bi2WO6/CuS can be applied over a wide pH range (2–6) with strong photocatalytic activity for RhB, TCH and Cr(VI). Coexisiting dissolved organic matter in the solution significantly promoted the removal of TCH (from 74.7% to 87.2%) and Cr(VI) (from 75.7% to 99.9%) because it accelerated the separation of electrons and holes by consuming holes as an electron acceptor. Removal mechanisms of RhB, TCH, and Cr(VI) were proposed, Bi2WO6/CuS was formed into a p-n heterojunction to efficiently separate and transfer photoelectrons and holes so as to drive photocatalytic reactions. Specifically, when reducing pollutants (e.g., TCH) and oxidizing pollutants (e.g., Cr(VI)) coexist in wastewater, the p-n heterojunction in Bi2WO6/CuS acts as a “bridge” to shorten the electron transport and thus simultaneously increase the removal efficiencies of both types of pollutants.

Keywords： Photocatalysis     Bi2WO6/CuS     Organic pollutants     Cr(VI)     Synergistic effect    

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Synergistic effects and kinetics analysis for co-pyrolysis of vacuum residue and plastics

Frontiers of Chemical Science and Engineering 2024, Volume 18, Issue 5, doi: 10.1007/s11705-024-2414-4

Abstract: A negative synergistic interaction was observed between LDPE and VR, although this inhibitory effect

Keywords： co-pyrolysis     heavy residual oil     polyethylene     thermogravimetric analysis     synergistic effects    

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Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1493-4

Abstract:

• A two-compartment model is able to quantify the effect of nano-TiO

Keywords： Algae     C. dubia     Lead     Nano-TiO2     Synergistic toxicity     Two-compartment toxicokinetic-toxicodynamic    

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An Integrated Analysis on the Synergistic Reduction of Carbon and Pollution Emissions from China’s Iron

Quanyin Tan,Fei Liu,Jinhui Li,

Engineering doi: 10.1016/j.eng.2023.09.018

Abstract: Therefore, the synergistic effects between PER and CER should be considered when formulating a development

Keywords： Iron and steel industry     Carbon and pollution emissions     Synergistic reduction     Technological structure    

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Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1244-1253 doi: 10.1007/s11705-022-2293-5

Abstract: Herein, a synergistic engineering of calcium-ion intercalation and polyaniline coating was developedThis synergistic engineering enables that the battery system based-on the polyaniline coated calciumThe vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline

Keywords： zinc-ion battery     CaV8O20     polyaniline coating     synergistic engineering     high capacity    

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Study on the synergistic experimental model of long span steel bridge deck pavement system

Xia Guoxing,Qian Zhendong,Chen Chun and Liu Yan

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 96-100

Abstract:

In order to reflect the synergistic effect and working environment oflong-span steel bridge deck-pavement system truly in laboratory experiments, this paper studies the synergisticThe entire bridge effect parameter is 1.17.Then, the synergistic experimental model is established.Taking the maximum stress and strain value ofEventually, the synergistic experimental model of long-span steel bridge deck-pavement system is obtained

Keywords： synergistic     experimental model     long-span steel bridge deck-pavement system    

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Mechanical Behavior and Flame Retardancy FRP via a Distribution Controllable 1D/2D Hybrid Nanoclay Synergistic

Zixuan Chen,Tianyu Yu,Zetian Yang,Zhibiao Wei,Yan Li,Weidong Yang,Tao Yu,

Engineering doi: 10.1016/j.eng.2024.03.017

Abstract: The incorporation of commercial flame retardants into fiber-reinforced polymer (FRP) composites has been proposed as a potential solution to improve the latter’s poor flame resistance. However, this approach often poses a challenge, as it can adversely affect the mechanical properties of the FRP. Thus, balancing the need for improved flame resistance with the preservation of mechanical integrity remains a complex issue in FRP research. Addressing this critical concern, this study introduces a novel additive system featuring a combination of one-dimensional (1D) hollow tubular structured halloysite nanotubes (HNTs) and two-dimensional (2D) polygonal flake-shaped nano kaolinite (NKN). By employing a 1D/2D hybrid kaolinite nanoclay system, this research aims to simultaneously improve the flame retardancy and mechanical properties. This innovative approach offers several advantages. During combustion and pyrolysis processes, the 1D/2D hybrid kaolinite nanoclay system proves effective in reducing heat release and volatile leaching. Furthermore, the system facilitates the formation of reinforcing skeletons through a crosslinking mechanism during pyrolysis, resulting in the development of a compact char layer. This char layer acts as a protective barrier, enhancing the material’s resistance to heat and flames. In terms of mechanical properties, the multilayered polygonal flake-shaped 2D NKN plays a crucial role by impeding the formation of cracks that typically arise from vulnerable areas, such as adhesive phase particles. Simultaneously, the 1D HNT bridges these cracks within the matrix, ensuring the structural integrity of the composite material. In an optimal scenario, the homogeneously distributed 1D/2D hybrid kaolinite nanoclays exhibit remarkable results, with a 51.0% improvement in mode II fracture toughness (GIIC), indicating increased resistance to crack propagation. In addition, there is a 34.5% reduction in total heat release, signifying improved flame retardancy. This study represents a significant step forward in the field of composite materials. The innovative use of hybrid low-dimensional nanomaterials offers a promising avenue for the development of multifunctional composites. By carefully designing and incorporating these nanoclays, researchers can potentially create a new generation of FRP composites that excel in both flame resistance and mechanical strength.

Keywords： 1D/2D nanoclays     Hierarchical distribution     Flame retardancy     Fiber-reinforced polymer     Damage mechanism    

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Title Author Date Type Operation

Performance and synergistic effect of phenolic and thio antioxidants in ABS graft copolymers

Gongsheng LI, Xuhong GUO, Wang NA, Diancheng HAO, Mingyao ZHANG, Huixuan ZHANG, Jun XU

Journal Article

Application of MoS in the space environment: a review

Journal Article

Electrocatalytic biofilm reactor for effective and energy-efficient azo dye degradation: the synergisticeffect of MnO/Ti flow-through anode and biofilm on the cathode

Journal Article

Enhanced activity of bimetallic Fe-Cu catalysts supported on ceria toward water gas shift reaction: synergisticeffect

Journal Article

Synergistic effect of V and Fe in Ni/Fe/V ternary layered double hydroxides for efficient and durable

Journal Article

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Journal Article

Exceptionally flame-retardant flexible polyurethane foam composites: synergistic effect of the silicone

Qian Wu, Jincheng Zhang, Shengpeng Wang, Bajin Chen, Yijun Feng, Yongbing Pei, Yue Yan, Longcheng Tang, Huayu Qiu, Lianbin Wu

Journal Article

Structural engineering of transition metal-based nanostructured electrocatalysts for efficient water splitting

Yueqing Wang, Jintao Zhang

Journal Article

Fabrication of highly efficient Bi

Wei Mao, Lixun Zhang, Tianye Wang, Yichen Bai, Yuntao Guan

Journal Article

Synergistic effects and kinetics analysis for co-pyrolysis of vacuum residue and plastics

Journal Article

Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic

Journal Article

An Integrated Analysis on the Synergistic Reduction of Carbon and Pollution Emissions from China’s Iron

Quanyin Tan,Fei Liu,Jinhui Li,

Journal Article

Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Journal Article

Study on the synergistic experimental model of long span steel bridge deck pavement system

Xia Guoxing,Qian Zhendong,Chen Chun and Liu Yan

Journal Article

Mechanical Behavior and Flame Retardancy FRP via a Distribution Controllable 1D/2D Hybrid Nanoclay Synergistic

Zixuan Chen,Tianyu Yu,Zetian Yang,Zhibiao Wei,Yan Li,Weidong Yang,Tao Yu,

Journal Article