Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 1200

Conference Videos 67

Conference Information 10

Conference Topics 1

Year

2024 2

2023 155

2022 210

2021 159

2020 108

2019 69

2018 50

2017 61

2016 47

2015 57

2014 39

2013 48

2012 33

2011 34

2010 34

2009 42

2008 24

2007 37

2006 10

2005 6

open ︾

Keywords

3D printing 21

CO₂ capture 19

PM_2.5 16

2 15

1 14

TiO₂ 14

photocatalysis 10

CO₂ 9

nanoparticles 8

CO₂ emissions 7

Photocatalysis 7

Al₂O₃ 6

adsorption 6

stability 6

4 5

Deep learning 5

Machine learning 5

H₂S 4

MnO₂ 4

open ︾

Search scope:

排序： Display mode:

Enhanced 4-chlorophenol biodegradation by integrating FeO nanoparticles into an anaerobic reactor: Long-term

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1519-6

Abstract:

• 4-chlorophenol biodegradation could be enhanced in Fe2sub>O3sub> coupled anaerobic system.

Keywords： Dechlorination Fe2sub>O3sub> nanoparticles Electron transfer Microbial community

HTML PDF Collect

Fe3sub>O4sub> encapsulated mesoporous silica nanospheres with tunable size and large void

Tingting LIU, Lihong LIU, Jian LIU, Shaomin LIU, Shi Zhang QIAO

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1, Pages 114-122 doi: 10.1007/s11705-014-1413-2

Abstract: Magnetic Fe O and mesoporous silica core-shell nanospheres with tunable size from 110–800 nm were synthesized via a one step self-assembly method. The morphological, structural, textural, and magnetic properties were well-characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, N adsorption-desorption and magnetometer. These nanocomposites, which possess high surface area, large pore volume and well-defined pore size, exhibit two dimensional hexagonal ( 6mm) mesostructures. Interestingly, magnetic core and mesoporous silica shell nanocomposites with large void pore (20 nm) on the shell were generated by increasing the ratio of ethanol/water. Additionally, the obtained nanocomposites combined magnetization response and large void pore, implying the possibility of applications in drug/gene targeting delivery. The cell internalization capacity of NH -functionalized nanocomposites in the case of cancer cells (HeLa cells) was exemplified to demonstrate their nano-medicine application.

Keywords： mesoporous silicas magnetic nanoparticles core-shell nanoparticles cell uptake

HTML PDF Collect

Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1569-9

Abstract:

● Fe3sub>O4sub> NPs increased the biomass and chlorophyll

Keywords： Fe3sub>O4sub> nanoparticle Hemp Growth enhancement THC Metabolite

HTML PDF Collect

A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration of Cd(II) ions

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2, Pages 450-459 doi: 10.1007/s11705-020-1930-0

Abstract: In this research, an eco-friendly magnetic adsorbent based on Fe O /salicylic acid nanocomposite was fabricated using a facile one-pot co-precipitation method. The crystalline and morphological characterization of the prepared nanocomposite was performed by field emission scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The nanocomposite was employed as a magnetic solid-phase extraction agent for separation of Cd(II) ions from synthetic solutions. Some experimental factors affecting the extraction efficiency were investigated and optimized. Following elution with acetic acid (pH 3.5), the pre-concentrated analyte was quantified by flame atomic absorption spectrometry. In optimal conditions, a linear calibration graph was achieved in the concentration range of 0.2‒30 ng·mL with a determination coefficient ( ) of 0.9953. The detection limit, the enhancement factor, inter- and intra-day relative standard deviations (for six consecutive extractions at the concentration level of 10 ng·mL ) were 0.04 ng·mL , 100, 2.38% and 1.52%, respectively. To evaluate the accuracy of the method, a certified reference material (NIST SRM 1643e) was analyzed, and there was a good agreement between the certified and the measured values. It was successfully utilized to determine cadmium in industrial wastewater samples and the attained relative recovery values were between 96.8% and 103.2%.

Keywords： cadmium magnetic solid-phase extraction Fe3sub>O4sub> nanoparticles Fe3sub>O4sub>/salicylic acid nanocomposite flame atomic absorption spectrometry

HTML PDF Collect

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh2sub>O3sub> CePO4sub> N2sub>O decomposition

HTML PDF Collect

Sulfur-deficient CoNi2sub>S4sub> nanoparticles-anchored porous carbon nanofibers as bifunctional

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1707-1717 doi: 10.1007/s11705-023-2308-x

Abstract: high overpotential and slow kinetics in water splitting, N-doped porous carbon nanofibers-coupled CoNi2sub>S4sub> nanoparticles are prepared as bifunctional electrocatalyst.>2sub>S4sub>.>2sub>S4sub> from 1.68 to 0.52 eV.Moreover, the uniform distribution of CoNi2sub>S4sub> nanoparticles on carbon nanofibers

Keywords： nanoparticle sulfur vacancy porous carbon nanofiber transition metal sulfides electrolysis

HTML PDF Collect

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: The magnetic nanoparticles that are easy to recycle have tremendous potential as a suitable catalystHerein, we successfully synthesized three kinds of MnFe2sub>O4sub> NPs with distinctive>O4sub> NPs and highly related to the surface-to-volume ratio and atom arrangements.Furthermore, the MnFe2sub>O4sub> NPs could be readily recovered by a magnet and reusedThe size and shape effects of MnFe2sub>O4sub> nanoparticles demonstrated in this work not

Keywords： Dye degradation MnFe2sub>O4sub> nanoparticles Size and shape-control

HTML PDF Collect

acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3sub>

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1399-1411 doi: 10.1007/s11705-023-2345-5

Abstract: Three kinds of Ce-based catalysts (CePO4sub>, CeVO4sub>, Ce2sub>(SO4sub>)> Ce2sub>(SO4sub>)3sub>, which is in agreement with their abilities of NH3sub>4sub>^3–, VO4sub>^3– and SO4sub>^2–4+, large NH3sub> adsorption>2sub> for Ce2sub>(SO4sub>)3sub>.

Keywords： CePO4sub> CeVO4sub> Ce2sub>(SO4sub>)3sub> selective catalytic reduction

HTML PDF Collect

On the monolayer dispersion behavior of Co3sub>O4sub> on HZSM-5 support: designing applicable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co3sub>O4sub>/ZSM-5 catalysts with different loadingsCo3sub>O4sub> can spontaneously disperse on HZSM-5 support with a monolayer dispersionBelow the monolayer dispersion threshold, Co3sub>O4sub> is finely dispersed as sub-monolayersreaction performance. 4% Co3sub>O4sub>/ZSM-5, the catalyst close to the monolayer dispersioncapacity amount of Co3sub>O4sub> onto HZSM-5 support.

Keywords： Co3sub>O4sub>/ZSM-5 NOxsub>-SCR by NH3sub> monolayer dispersionthreshold effect surface acid sites surface active O2sub>^– anions

HTML PDF Collect

Novel coprecipitation–oxidation method for recovering iron from steel waste pickling liquor

Shejiang Liu, Hongyang Yang, Yongkui Yang, Yupeng Guo, Yun Qi

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0902-1

Abstract: Fe O nanoparticles were well synthesized from steel waste pickling liquor.X-ray diffraction patterns showed that the produced Fe O nanoparticles were single phase.The Fe O nanoparticles were approximately spherical and slightly agglomerated.Vibrating sample magnetometry showed that the Fe O nanoparticles produced from the WPLs had good magnetic

Keywords： Waste pickling liquor Coprecipitation–oxidation Fe3sub>O4sub> nanoparticles Oxidation–reduction

HTML PDF Collect

Removal of P4sub>, PH3sub> and H2sub>S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Strategic Study of CAE 2005, Volume 7, Issue 6, Pages 27-35

Abstract: and activated carbon proved to be effective catalysts in the catalytic oxidation process (COP) for H2sub>S and PH3sub> removal.Under optimized operation conditions the product gas with a content of hydrogen sulfide ＜5 mg/m³, total phosphorus＜ 5 mg/m³ was obtained by using the COP process.

Keywords： catalyst catalytic oxidation H2sub>S P4sub> PH3sub> fixed bed

HTML PDF Collect

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: In this study, a Co3sub>O4sub>–CeO2sub> composite oxide catalyst was successfullyexhibited a higher selectivity to KA-oil, which was benefited from the synergistic effects between Co³⁺/Co²⁺ and Ce⁴⁺/Ce³⁺ redox pairs, than bulk CeO2sub> and/or Co3sub>O4sub>.>3sub>O4sub>–CeO2sub>.

Keywords： Co3sub>O4sub>–CeO2sub> composite oxides cyclohexanone cyclohexanol ultrasonic-assisted

HTML PDF Collect

Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2, Pages 226-235 doi: 10.1007/s11705-022-2198-3

Abstract: Here, we report a Ni2sub>Fe(CN)6sub>/multiwalled carbon nanotube composite electrode materialThe obtained material consists of nanoparticles with sizes 30–50 nm and the multiwalled carbon nanotubeThe existence of multiwalled carbon nanotube ensures that the Ni2sub>Fe(CN)6sub>/multiwalledFurthermore, detailed ex situ characterizations demonstrate that Ni2sub>Fe(CN)6subTherefore, the Ni2sub>Fe(CN)6sub>/multiwalled carbon nanotube composite presents a long

Keywords： nickel ferrocyanides NH4sub>⁺ electrochemistry Prussian blue aqueous ammonium ion

HTML PDF Collect

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3, Pages 265-270 doi: 10.1007/s11783-009-0019-2

Abstract: CoO-SnO hybrid oxides were prepared by the coprecipitation method and were used to oxidate methane (CH) in presence of oxygen. The CoO-SnO with a molar ratio of Co/(Co+Sn) at 0.75 exhibited the highest catalytic activity among all the CoO-SnO hybrid oxides. Experimental results showed that the catalysts were considerably stable in the CH combustion reaction, and were verified by X-ray photoelectron spectra (XPS). It was found that CoO was the active species, and SnO acted as a support or a promoting component in the CoO-SnO hybrid oxides. The surface area was not a major factor that affected catalytic activity. The hydrogen temperature-programmed reduction (H-TPR) results demonstrated that the interaction between cobalt and tin oxides accelerated the mobility of oxygen species of CoO-SnO, leading to higher catalytic activity.

Keywords： Co3sub>O4sub>-SnO2sub> complete oxidation methane (CH4sub>)

HTML PDF Collect

Effect of TiO

Navid Azizi, Mojgan Isanejad, Toraj Mohammadi, Reza M. Behbahani

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 517-530 doi: 10.1007/s11705-018-1781-0

Abstract: (ether-block-amide) (PEBAX-1657) mixed matrix membranes (MMMs) were investigated from pressures of 3–The incorporation of TiO nanoparticles into the polymeric MMMs improved the CO /CH gas separation performance

Keywords： mixed matrix membrane TiO2sub> nanoparticles PEBAX-1657 CO2sub>/CH4sub> separation

HTML PDF Collect

Title Author Date Type Operation

Enhanced 4-chlorophenol biodegradation by integrating FeO nanoparticles into an anaerobic reactor: Long-term

Journal Article

Fe3sub>O4sub> encapsulated mesoporous silica nanospheres with tunable size and large void

Tingting LIU, Lihong LIU, Jian LIU, Shaomin LIU, Shi Zhang QIAO

Journal Article

Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Journal Article

A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration of Cd(II) ions

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Journal Article

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

Sulfur-deficient CoNi2sub>S4sub> nanoparticles-anchored porous carbon nanofibers as bifunctional

Journal Article

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Journal Article

acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3sub>

Journal Article

On the monolayer dispersion behavior of Co3sub>O4sub> on HZSM-5 support: designing applicable

Journal Article

Novel coprecipitation–oxidation method for recovering iron from steel waste pickling liquor

Shejiang Liu, Hongyang Yang, Yongkui Yang, Yupeng Guo, Yun Qi

Journal Article

Removal of P4sub>, PH3sub> and H2sub>S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Journal Article

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Journal Article

Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

Effect of TiO

Navid Azizi, Mojgan Isanejad, Toraj Mohammadi, Reza M. Behbahani

Journal Article

京公网安备 11010502051620号京ICP备11030251号-2

关注我们