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Effect of styrene-butadiene-styrene copolymer on the aging resistance of asphalt: An atomistic understanding

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1261-1276 doi: 10.1007/s11709-021-0761-5

Abstract: reveal the potential influence of styrene-butadiene-styrene (SBS) polymer modification on the anti-agingperformance of asphalt, and its mechanism, we explored the aging characteristics of base asphalt andThe results illustrate that the SBS asphalt is more susceptible to oxidative aging than the base asphaltIn addition, SBS polymer degrades into small blocks during aging, thus counteracting the hardening of

Keywords： SBS asphalt     oxidative aging     asphalt hardening     ReaxFF     molecular dynamics    

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the characterization of pore structures and permeability of diesel contaminated clays under different aging

Frontiers of Structural and Civil Engineering   Pages 1264-1280 doi: 10.1007/s11709-023-0921-x

Abstract: to characterize the pore structures and investigate the permeability characteristics of clay after agingThe results of the MIP tests showed that aging leads to reductions in porosity and average diameter,The XRμCT analysis yielded consistent results; it showed that aging renders pores more spherical andMechanistic analysis showed that aging weakens interparticle cohesion; this causes large agglomeratesBoth aging and diesel content can weaken the permeation characteristics of soil.

Keywords： MIP     XRμCT     aging     diesel content     pore structure     permeability characteristics    

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Mechanism and characterization of microplastic aging process: A review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1700-6

Abstract:

● Methods for estimating the aging of environmental micro-plastics

Keywords： Microplastics     Aging     Degradation     Characterization     Mechanism    

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Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based on

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 625-636 doi: 10.1007/s11709-023-0938-1

Abstract: Subsequently, the aging properties and aging mechanism of activated waste rubber powder modified asphaltA comparison and analysis of the rheological aging parameters of ARMA and RMA show that LBP activationdiminishes the aging sensitivity of ARMA.of asphalt light components by heat and the damage to the colloidal structure by oxygen during the agingprocess are impeded, and the thermal-oxidative aging resistance of ARMA is improved.

Keywords： rubber powder modified asphalt     aging     mechanism     rheological     characterization    

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Catalytic oxidative desulfurization of gasoline using phosphotungstic acid supported on MWW zeolite

Hanlu Wang, Idris Jibrin, Xingye Zeng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 546-560 doi: 10.1007/s11705-019-1842-z

Abstract: Catalysts for the desulfurization of gasoline samples were synthesized via the immobilization of well-dispersed phosphotungstic acid (HPW) on Mobil composition of matter-twenty-two (MWW) zeolite. Characterization results indicated that these catalysts possess a mesoporous structure with the retention of the Keggin structure of immobilized HPW. Relevant reaction parameters influencing sulfur removal were systematically investigated, including HPW loading, catalyst dosage, temperature, initial S-concentration, molar ratio of oxidant to sulfide (O/S), volume ratio of MeCN to model oil (Ext./oil), and sulfide species. The 40 wt-% HPW/MWW catalyst exhibited the highest catalytic activity with 99.6% dibenzothiophene sulfur removal from prepared samples. The 40 wt-% HPW/MWW catalyst was recycled four times and could be easily regenerated. Finally, as an exploratory study, straight-run-gasoline and fluid catalytic cracking gasoline were employed to accurately evaluate the desulfurization performance of 40 wt-% HPW/MWW. Our research provides new insights into the development and application of catalysts for desulfurization of gasoline.

Keywords： oxidative desulfurization     phosphotungstic acid     MWW     wet impregnation     adsorption energy    

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Apigenin alleviates neomycin-induced oxidative damage via the Nrf2 signaling pathway in cochlear hair

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 637-650 doi: 10.1007/s11684-021-0864-3

Abstract: Oxidative stress plays an important role in the pathogenesis of aminoglycoside-induced hearing loss andDisruption of the Nrf2 axis abolished the effects of apigenin on the alleviation of oxidative stress

Keywords： apigenin     aminoglycosides     ototoxicity     oxidative stress     Nrf2 signaling pathway    

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Insights into influence of aging processes on zero-valent iron modified biochar in copper(II) immobilization

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 880-892 doi: 10.1007/s11705-022-2282-8

Abstract: by natural forces after entering into the environment, while there are seldom studies reported the agingIn this work, the hydrogen peroxide and hydrochloric acid solution were applied to simulate aging conditionsAfter aging, the decreasing of capacity could be mainly attributed to the inhibition of ion-exchangeMoreover, the plant growth and soil leaching experiments also proved the effects of aging treatment,reduced the inhibition of copper(II) bioavailability and increased the mobility of copper(II) after aging

Keywords： zero-valent iron modified biochar     aging processes     copper removal     adsorption     pilot-scale experiments    

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Cobalt-nanoparticle catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2378-9

Abstract: In this study, we synthesize a catalyst comprising cobalt nanoparticles supported on MXene by pyrolyzing a composite in a N2 environment. Specifically, the composite comprises a bimetallic Zn/Co zeolitic imidazole framework grown in situ on the outer surface of MXene. The catalytic efficiency of the catalyst is tested for the self-coupling of 4-methoxybenzylamine to produce value-added imine, where atmospheric oxygen (1 atm) is used as the oxidant. Based on the results, the catalyst displayed impressive catalytic activity, achieving 95.4% yield of the desired imine at 383 K for 8 h. Furthermore, the catalyst showed recyclability and tolerance toward benzylamine substrates with various functional groups. The outstanding performance of the catalyst is primarily attributed to the synergetic catalytic effect between the cobalt nanoparticles and MXene support, while also benefiting from the three-dimensional porous structure. Additionally, a preliminary investigation of potential reaction mechanisms is conducted.

Keywords： MXene     sacrificial template     oxidative self-coupling     Co nanoparticles     imine    

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Projections of heat-related excess mortality in China due to climate change, population and aging

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1732-y

Abstract:

● Four scenarios were used to project heat-related excess mortality in China.

Keywords： Heat-related excess mortality     LMDI     Aging     YLL     VSLY    

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Synthesis and characterization of phosphotungstic acid/activated carbon as a novel ultrasound oxidative

Liyan LIU, Yu ZHANG, Wei TAN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 422-427 doi: 10.1007/s11705-013-1353-2

Abstract: catalysts were then evaluated in terms of the removal of dibenzothiophene (DBT) by ultrasound-assisted oxidativeIn addition, the stability tests of PTA/AC showed that the catalytic oxidative activity of PTA/AC wasultrasound irradiation for 20 min, which makes it a promising catalyst to use in ultrasound-assisted oxidative

Keywords： phosphotungstic acid     activated carbon     ultrasound-assisted oxidative desulfurization    

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Outdoor aging of road asphalt and SBS modified asphalt

Li XIANG, Juan TU, Jian CHENG, Guohe QUE

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 35-42 doi: 10.1007/s11705-010-0551-4

Abstract: The process of performance degradation of road asphalt (RA) is regarded as aging.At present, better understanding of the thermal-oxidative aging of asphalt is achieved and the correspondingmethod to evaluate this process is developed; meanwhile, photo-oxidative aging (aging in an atmosphericenvironment, which is referred to as “outdoor aging” in this paper) of asphalt remains at the initialThe group components of RA and SBSMA also change during UV aging.

Keywords： asphalt     SBS     modified road asphalt     outdoor aging     ultraviolet    

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Oxidative desulfurization of fuels using ionic liquids: A review? ?

Hua Zhao,Gary A. Baker

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 262-279 doi: 10.1007/s11705-015-1528-0

Abstract: non-volatile and highly designable solvents, ionic liquids (ILs) have attracted considerable attention for the oxidative

Keywords： oxidative desulfurization     ionic liquids     extraction     fuels     petroleum     polyoxometalates    

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Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic oxidative

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 276-287 doi: 10.1007/s11705-022-2242-3

Abstract: active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative

Keywords： oxidative desulfurization     boron nitride     vanadium     MXene     intercalation confinement    

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Role of brown adipose tissue in metabolic syndrome, aging, and cancer cachexia

Meng Dong, Jun Lin, Wonchung Lim, Wanzhu Jin, Hyuek Jong Lee

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 130-138 doi: 10.1007/s11684-017-0555-2

Abstract:

Brown adipose tissue (BAT) plays a fundamental role in maintaining body temperature by producing heat. BAT that had been know to exist only in mammals and the human neonate has received great attention for the treatment of obesity and diabetes due to its important function in energy metabolism, ever since it is recently reported that human adults have functional BAT. In addition, beige adipocytes, brown adipocytes in white adipose tissue (WAT), have also been shown to take part in whole body metabolism. Multiple lines of evidence demonstrated that transplantation or activation of BAT or/and beige adipocytes reversed obesity and improved insulin sensitivity. Furthermore, many genes involved in BAT activation and/or the recruitment of beige cells have been found, thereby providing new promising strategies for future clinical application of BAT activation to treat obesity and metabolic diseases. This review focuses on recent advances of BAT function in the metabolic aspect and the relationship between BAT and cancer cachexia, a pathological process accompanied with decreased body weight and increased energy expenditure in cancer patients. The underlying possible mechanisms to reduce BAT mass and its activity in the elderly are also discussed.

Keywords： brown adipose tissue     beige adipocyte     anti-obesity     anti-diabetes     cancer cachexia     aging    

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Experimental study on oxidative decomposition of nitrobenzene in aqueous solution by honeycomb ceramic-catalyzed

ZHAO Lei, MA Jun, LIU Zhengqian, YANG Yixin, SUN Zhizhong

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 44-50 doi: 10.1007/s11783-008-0012-1

Abstract: The ozonation of nitrobenzene in aqueous solution was carried out in a semi-batch reactor to investigate the degradation efficiency, the effect factors, and the reaction mechanism, where honeycomb ceramic was used as a catalyst. The presence of honeycomb ceramic could improve the degradation rate of nitrobenzene by 15.46% compared to the results of ozonation alone. Under the conditions of this experiment, the degradation rate of honeycomb ceramic-catalyzed ozonation increased by 12.94% with the increase of the amount of catalyst from 1 to 5 blocks. The degradation rates all increased greatly with the increase of temperature and pH of the solution in the processes of honeycomb ceramic-catalyzed ozonation and ozonation alone. But, when the pH of the solution increased to 9.50, the advantage of the honeycomb ceramic-catalyzed ozonation process would be lost. The experimental findings indicated that in the processes of ozonation alone and honeycomb ceramic-catalyzed ozonation, nitrobenzene was primarily oxidized by OH free radical in aqueous solution. The adsorption of nitrobenzene was too limited to have an important influence on the degradation rate of nitrobenzene. With the same total dosage of applied ozone, the multiple step addition of ozone showed much higher removal efficiency than that obtained by one step in the two processes.
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Title Author Date Type Operation

Effect of styrene-butadiene-styrene copolymer on the aging resistance of asphalt: An atomistic understanding

Journal Article

the characterization of pore structures and permeability of diesel contaminated clays under different aging

Journal Article

Mechanism and characterization of microplastic aging process: A review

Journal Article

Aging properties and aging mechanism of activated waste rubber powder modified asphalt binder based on

Journal Article

Catalytic oxidative desulfurization of gasoline using phosphotungstic acid supported on MWW zeolite

Hanlu Wang, Idris Jibrin, Xingye Zeng

Journal Article

Apigenin alleviates neomycin-induced oxidative damage via the Nrf2 signaling pathway in cochlear hair

Journal Article

Insights into influence of aging processes on zero-valent iron modified biochar in copper(II) immobilization

Journal Article

Cobalt-nanoparticle catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative

Journal Article

Projections of heat-related excess mortality in China due to climate change, population and aging

Journal Article

Synthesis and characterization of phosphotungstic acid/activated carbon as a novel ultrasound oxidative

Liyan LIU, Yu ZHANG, Wei TAN

Journal Article

Outdoor aging of road asphalt and SBS modified asphalt

Li XIANG, Juan TU, Jian CHENG, Guohe QUE

Journal Article

Oxidative desulfurization of fuels using ionic liquids: A review? ?

Hua Zhao,Gary A. Baker

Journal Article

Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic oxidative

Journal Article

Role of brown adipose tissue in metabolic syndrome, aging, and cancer cachexia

Meng Dong, Jun Lin, Wonchung Lim, Wanzhu Jin, Hyuek Jong Lee

Journal Article

Experimental study on oxidative decomposition of nitrobenzene in aqueous solution by honeycomb ceramic-catalyzed

ZHAO Lei, MA Jun, LIU Zhengqian, YANG Yixin, SUN Zhizhong

Journal Article