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Catalytic oxidation of CO over Pt/Fe

Zihao Li, Yang Geng, Lei Ma, Xiaoyin Chen, Junhua Li, Huazhen Chang, Johannes W. Schwank

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1244-y

Abstract: Abstract • Strong metal-support interaction exists on Pt/Fe3O4 catalysts. • Pt metal particles facilitateformation of oxygen vacancies on Fe3O4. • Fe3O4 supports enhance the strength of CO adsorption on Pt metalThe self-inhibition behavior due to CO poisoning on Pt metal particles strongly impairs the performanceIt is an effective method to use reducible metal oxides for supporting Pt metal particles to avoid self-inhibitionXRD, XPS, and H2-TPR results confirmed that the metallic Pt atoms have a strong synergistic interaction

Keywords： Strong metal-support interaction (SMSI)     Surface oxygen vacancy     Lattice oxygen     Magnetite     Platinum metals    

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Dry Reforming of Ethane over FeNi/Al–Ce–O Catalysts: Composition-Induced Strong Metal–Support Interactions Article

Tao Zhang,Zhi-Cheng Liu,Ying-Chun Ye,Yu Wang,He-Qin Yang,Huan-Xin Gao,Wei-Min Yang,

Engineering 2022, Volume 18, Issue 11,   Pages 173-185 doi: 10.1016/j.eng.2021.11.027

Abstract: Herein, a composition-induced strong metal–support interaction (SMSI) effect over FeNi/Al&ndash

Keywords： Dry reforming of ethane     Strong metal-support interaction     Carbon dioxide     Ceria     Oxygen vacancy     Reaction    

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Excellent performance of Cu-Mn/Ti-sepiolite catalysts for low-temperature CO oxidation

Yong Song,Lisha Liu,Zhidan Fu,Qing Ye,Shuiyuan Cheng,Tianfang Kang,Hongxing Dai

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0908-8

Abstract: The interaction, reducibility, and oxygen mobility govern the activity.It is concluded that factors, such as the strong interaction between the copper or manganese oxides andthe Ti-Sep support, good low-temperature reducibility, and good mobility of chemisorbed oxygen species

Keywords： Ti-modified sepiolite     Supported Mn-Cu mixed oxide     Low-temperature reducibility     Strong metal-support interaction    

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The modification of titanium in mesoporous silica for Co-based Fischer–Tropsch catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1224-1236 doi: 10.1007/s11705-022-2139-1

Abstract: titanium content inevitably resulted in the formation of anatase TiO 2 particles on the supportThe enhanced metal-support interactions were beneficial for the CO/H2 ratio at the activeThis study provides a promising method for support modification with incorporated-heteroatoms for the

Keywords： Fischer–Tropsch synthesis     titanium incorporation     mesoporous silica     metal-support interactions     C   

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Oxygen reduction electrocatalysis: From conventional to single-atomic platinum-based catalysts for proton exchange membrane fuel cells

Frontiers in Energy doi: 10.1007/s11708-023-0907-3

Abstract: catalysis and stability performance still need to be further improved in terms of corrosion of both carbon supportThe single-atomic Pt coordinating with non-metals and alloying with metals as well as the metal-support

Keywords： electrocatalysis     Pt single-atom catalysts     conventional Pt-based catalysts     design thoughts and synthesis     metal-support    

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Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 236-242 doi: 10.1007/s11783-010-0218-8

Abstract: Copper and zinc interaction on clearance from water and distribution in different tissues was investigatedInteraction effect was most evident at 300 μg·L Cu exposure and depressed the Zn clearance rate significantlyThe response of metal accumulation in various tissues of the test mussels indicated that Zn transferred

Keywords： interaction     mussel     copper     zinc     clearance     distribution    

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A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1633-0

Abstract:

● pz-UiO-66 was synthesized facilely by a solvothermal method.

Keywords： Pyrazine     Metal-organic frameworks     Copper removal     Strong acidity     High selectivity    

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<strong>FESEstrong><strong>’s Best Papers of 2017strong>

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1051-x

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Nexus between polymer support and metal oxide nanoparticles in hybrid nanosorbent materials (HNMs) for

Ryan C. SMITH,Jinze LI,Surapol PADUNGTHON,Arup K. SENGUPTA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 929-938 doi: 10.1007/s11783-015-0795-9

Abstract: Metal oxide nanoparticles like hydrated ferric oxide (HFO) or hydrated zirconium oxide (HZrO) are excellentBy impregnating metal oxide nanoparticles inside a polymer support, with or without functional groupsA HNM is durable, mechanically strong, and chemically stable.The functional groups of the polymeric support will affect the overall removal efficiency of the ligandsAlso, the physical morphology of the support material, spherical bead versus ion exchange fiber, has

Keywords： ion exchange     sorption     arsenic     perchlorate     fluoride    

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<strong>Photosynthesis and related metabolic mechanism of promoted rice (strong><strong>Oryza sativastrong><strong> L.) growth by TiOstrong><strong>2strong><strong> nanoparticlesstrong>

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1282-5

Abstract: Abstract • The rice growth was promoted by nano-TiO2 of 0.1–100 mg/L. • Nano-TiO2 enhanced the energy storage in photosynthesis. • Nano-TiO2 reduced energy consumption in carbohydrate metabolism and TCA cycle. Titanium dioxide nanoparticle (nano-TiO2), as an excellent UV absorbent and photo-catalyst, has been widely applied in modern industry, thus inevitably discharged into environment. We proposed that nano-TiO2 in soil can promote crop yield through photosynthetic and metabolic disturbance, therefore, we investigated the effects of nano-TiO2 exposure on related physiologic-biochemical properties of rice (Oryza sativa L.). Results showed that rice biomass was increased >30% at every applied dosage (0.1–100 mg/L) of nano-TiO2. The actual photosynthetic rate (Y(II)) significantly increased by 10.0% and 17.2% in the treatments of 10 and 100 mg/L respectively, indicating an increased energy production from photosynthesis. Besides, non-photochemical quenching (Y(NPQ)) significantly decreased by 19.8%–26.0% of the control in all treatments respectively, representing a decline in heat dissipation. Detailed metabolism fingerprinting further revealed that a fortified transformation of monosaccharides (D-fructose, D-galactose, and D-talose) to disaccharides (D-cellobiose, and D-lactose) was accompanied with a weakened citric acid cycle, confirming the decrease of energy consumption in metabolism. All these results elucidated that nano-TiO2 promoted rice growth through the upregulation of energy storage in photosynthesis and the downregulation of energy consumption in metabolism. This study provides a mechanistic understanding of the stress-response hormesis of rice after exposure to nano-TiO2, and provides worthy information on the potential application and risk of nanomaterials in agricultural production.

Keywords： Nano-TiO2     Rice     Photosynthesis     Metabolomics     Energy storage    

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<strong>Adsorption characteristics of ciprofloxacin onto g-MoSstrong><strong>2strong><strong> coated biochar nanocompositesstrong>

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-019-1218-0

Abstract: In addition, the adsorption of CIP onto g-MoS2-BC composites also exhibited strong dependence on thethat the mechanisms of CIP adsorption on g-MoS2-BC composites involved pore-filling effects, π-π EDA interaction, electrostatic interaction, and ion exchange interaction.

Keywords： Adsorption     Ciprofloxacin     g-MoS2 nanosheets     Biochar     Soil remediation    

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<strong>A newly defined dioxygenase system from strong><strong>Mycobacterium vanbaaleniistrong><strong> PYR-1 endowed with an enhanced activity of dihydroxylation of high-molecular-weight polyaromatichydrocarbonsstrong>

Yiquan Wu, Ying Xu, Ningyi Zhou

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1193-5

Abstract: • Mycobacterium vanbaalenii PYR-1 utilizes PAHs at different rates. • Both NidA3B3 and FNidA3B3 catalyze high-molecular-weight PAHs dihydroxylation. • NidA3B3 shows an enhanced activity with an endogenous electron transport chain. • FNidA3B3 has an enhanced activity by 50% approximately compared with NidA3B3. • FNidA3B3/NidA3B3 and NidAB in the same strain come from different ancestors. NidA3B3 is a terminal dioxygenase whose favorable substrates are high-molecular-weight polyaromatic hydrocarbons (PAHs) from Mycobacterium vanbaalenii PYR-1, a powerful PAHs degradation strain. NidA3B3 was reported to incorporate a dioxygen into the benzene ring of PAHs when equipped with an exogenous electron transport chain components PhdCD from Nocardioides sp. strain KP7 by biotransformation, but this enzyme system was not particularly efficient. In this study, strain PYR-1 was confirmed to utilize four different PAHs at different growth rates. When PhtAcAd, an endogenous electron transport chain of a phthalate dioxygenase system, was substituted for PhdCD to couple with NidA3B3, the specific activity to convert phenanthrene by strain BL21(DE3) [pNidA3B3-PhAcAd] was 0.15±0.03 U/mg, but the specific activity of strain BL21(DE3) [pNidA3B3-PhdCD] was only 0.025±0.006 U/mg. In addition, FNidA3, encoded by a newly defined ORF, has a prolonged 19-amino acid sequence at the N-terminal compared with NidA3. FNidA3B3 increased the activity by 50% approximately than NidA3B3 when using PhtAcAd. Components of the electron transport chain PhtAc and PhtAd were purified and characterized. The Km, kcat, kcat/Km values of the PhtAd were 123±26.9 M, 503±49.9 min−1, 4.1 M−1·min−1, respectively. And the Km, kcat, kcat/Km values of the ferredoxin PhtAc were 52.5±9.7 M, 3.8±0.19 min−1 and 0.07 M−1·min−1, respectively. Basing on the phylogenetic analysis, NidA3/FNidA3 were far from its isoenzyme NidA from the same strain. Combining their primary differences of transcriptional pattern in vivo, it indicated that the functionally similar Rieske dioxygenases NidA3B3/FNidA3B3 and NidAB might originate from different ancestors.

Keywords： Biodegradation     polyaromatic hydrocarbons     biotransformation     ring-hydroxylating dioxygenase system    

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Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 929-936 doi: 10.1007/s11705-019-1912-2

Abstract: species based on the X-ray diffraction and X-ray photoelectron spectroscopy results, indicating the stronginteraction between palladium and ceria.

Keywords： selective hydrogenation     acetylene     Pd/CeO2     strong interaction    

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Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 159-187 doi: 10.1007/s11705-019-1885-1

Abstract: Metal-containing zeolite catalysts have found a wide range of applications in heterogeneous catalysisTo understand the nature of metal active sites and the reaction mechanism over such catalysts is of greatdevelopments and applications of SSNMR for exploring the structure and property of active sites in metal-containingFinally, we highlight the mechanistic understanding of catalytic reactions on metal-containing zeolites

Keywords： metal-containing zeolites     solid-state NMR     active site     host-guest interaction     reaction mechanism    

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<strong>Fabrication and photocatalytic ability of an Au/TiOstrong><strong>2strong><strong>/reduced graphene oxide nanocompositestrong>

Fenghe Lv, Hua Wang, Zhangliang Li, Qi Zhang, Xuan Liu, Yan Su

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0977-8

Abstract: performance was achieved via the addition of RGO in Au/TiO /RGO, where RGO served not only as a catalyst support

Keywords： Reduced graphene oxide     Au     TiO2     Nanocomposite     Photocatalysis    

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Title Author Date Type Operation

Catalytic oxidation of CO over Pt/Fe

Zihao Li, Yang Geng, Lei Ma, Xiaoyin Chen, Junhua Li, Huazhen Chang, Johannes W. Schwank

Journal Article

Dry Reforming of Ethane over FeNi/Al–Ce–O Catalysts: Composition-Induced Strong Metal–Support Interactions

Tao Zhang,Zhi-Cheng Liu,Ying-Chun Ye,Yu Wang,He-Qin Yang,Huan-Xin Gao,Wei-Min Yang,

Journal Article

Excellent performance of Cu-Mn/Ti-sepiolite catalysts for low-temperature CO oxidation

Yong Song,Lisha Liu,Zhidan Fu,Qing Ye,Shuiyuan Cheng,Tianfang Kang,Hongxing Dai

Journal Article

The modification of titanium in mesoporous silica for Co-based Fischer–Tropsch catalysts

Journal Article

Oxygen reduction electrocatalysis: From conventional to single-atomic platinum-based catalysts for proton exchange membrane fuel cells

Journal Article

Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Journal Article

A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

Journal Article

<strong>FESEstrong><strong>’s Best Papers of 2017strong>

Journal Article

Nexus between polymer support and metal oxide nanoparticles in hybrid nanosorbent materials (HNMs) for

Ryan C. SMITH,Jinze LI,Surapol PADUNGTHON,Arup K. SENGUPTA

Journal Article

<strong>Photosynthesis and related metabolic mechanism of promoted rice (strong><strong>Oryza sativastrong><strong> L.) growth by TiOstrong><strong>2strong><strong> nanoparticlesstrong>

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Journal Article

<strong>Adsorption characteristics of ciprofloxacin onto g-MoSstrong><strong>2strong><strong> coated biochar nanocompositesstrong>

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Journal Article

<strong>A newly defined dioxygenase system from strong><strong>Mycobacterium vanbaaleniistrong><strong> PYR-1 endowed with an enhanced activity of dihydroxylation of high-molecular-weight polyaromatichydrocarbonsstrong>

Yiquan Wu, Ying Xu, Ningyi Zhou

Journal Article

Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

Journal Article

Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Journal Article

<strong>Fabrication and photocatalytic ability of an Au/TiOstrong><strong>2strong><strong>/reduced graphene oxide nanocompositestrong>

Fenghe Lv, Hua Wang, Zhangliang Li, Qi Zhang, Xuan Liu, Yan Su

Journal Article