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Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1674-4

Abstract:

● Simultaneous NH4sub>+sup>/NO3sub>–sup

Keywords： Anammox Denitrification FeS NH4sub>+sup>/NO3sub>−sup> Sulfammox

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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 existence of multiwalled carbon nanotube ensures that the Ni2sub>Fe(CN)6sub>/multiwalledcomposite shows excellent electrochemical performance, achieving a discharge capacity of 55.1 mAh·g–1sup> at 1 C and 43.2 mAh·g–1sup> even at 15 C.Furthermore, detailed ex situ characterizations demonstrate that Ni2sub>Fe(CN)6sub

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

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Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3sub>OH+sup>/NH2sub>NH3sub>+sup> as B-site Cations Article

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Engineering 2020, Volume 6, Issue 9, Pages 1013-1018 doi: 10.1016/j.eng.2020.05.018

Abstract: >2sub>dabco)B(ClO4sub>)3sub> (H2sub>dabco2+sup> = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), were fabricated via an easily scaled-up synthetic route using NH3sub>OH+sup> and NH2sub>NH3sub>+sup> as B-site cations, respectively.Compared with their NH4sub>+sup> analog ((H2sub>dabco)(NH4sub>)(ClO4sub>)3sub>; DAP-4), which has a cubic perovskite structure, DAP-6 and DAP-7 have higher crystal

Keywords： Energetic materials Single explosive Solid propellant Metal-free Hexagonal perovskite

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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: It has been revealed that the quantities of surface active oxygen (O2sub>–sup>) and acidsites are crucial for the reaction, which can adsorb and activate NOxsub> and NH3reaction performance. 4% Co3sub>O4sub>/ZSM-5, the catalyst close to the monolayer dispersioncapacity, possesses the most abundant active O2sub>–sup> species and acidic sites, therebycapacity 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>–sup> anions

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Deciphering the effect of sodium dodecylbenzene sulfonate on up-flow anaerobic sludge blanket treatment of synthetic sulfate-containing wastewater

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1385-z

Abstract:

• UASB reactor can work efficiently with high COD/SO4sub>2sup>-sup> ratios when SDBS exists.

Keywords： Up-flow anaerobic sludge blanket Organic sulfur Sodium dodecylbenzene sulfonate COD/SO4sub>2sup>−sup> ratio Microbial community

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Calculation of H2sub>+sup> Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Strategic Study of CAE 2004, Volume 6, Issue 11, Pages 29-32

Abstract: >+sup> structural parameters.>esub>=2a0sub>,

Keywords： hydrogen molecule ion bond-length bond-energy force constant

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different 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>)NH3sub>-SCR performances were conducted in the temperature range of 80 to 400 °C.> Ce2sub>(SO4sub>)3sub>, which is in agreement with their abilities of NH3sub>4sub>3–sup>, VO4sub>3–sup> and SO4sub>2–supThe key factors that can enhance the SCR are the existence of Ce4+sup>, large NH3sub> adsorption

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

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Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and DFT calculations

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1713-1

Abstract:

● Synergistic removal of carbamazepine (CBZ) was obtained in the FeS-S2sub>O8sub>2–sup> process.

Keywords： FeS S2sub>O8sub>2–sup> Carbamazepine DFT calculations Degradation routes

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Effects of ancillary ligands in acceptorless benzyl alcohol dehydrogenation mediated by phosphine-free cobalt complexes

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3, Pages 314-325 doi: 10.1007/s11705-022-2219-2

Abstract: Herein, we synthesized a phosphine-free η5sup>-C5sub>Me5sub>-Co complex by usingThe improved performance among the class of η5sup>-C5sub>Me5sub>-Co complexes could>5sup>-C5sub>Me5sub>-Co complexes by a set of characterizations.The results showed that the redox-active ligand has a significant influence on the η5sup>-C<subThe electron population demonstrated that the η5sup>-C5sub>Me5sub> ligand played

Keywords： acceptorless alcohol dehydrogenation η5sup>-C5sub>Me5sub>-Co metal–ligand cooperation

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An electrochemical process that uses an Fe

Chaojie Jiang, Lifen Liu, John C. Crittenden

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0860-z

Abstract: A bio-electrochemical fuel cell reactor with cathodic Fe /TiO generates electricity. It destroys recalcitrant pollutants in cathode chamber without photocatalysis. Fe /TiO generates reactive oxygenated species in the dark or under photocatalysis. Cathodic produced ROS (hydroxy radical/superoxide radical) can degrade tetracycline or dyes. Electricity generation is enhanced by semiconductor catalyzed cathodic degradation of pollutants. In this study, a new water treatment system that couples (photo-) electrochemical catalysis (PEC or EC) in a microbial fuel cell (MFC) was configured using a stainless-steel (SS) cathode coated with Fe /TiO . We examined the destruction of methylene blue (MB) and tetracycline. Fe /TiO was prepared using a chemical reduction-deposition method and coated onto an SS wire mesh (500 mesh) using a sol technique. The anode generates electricity using microbes (bio-anode). Connected via wire and ohmic resistance, the system requires a short reaction time and operates at a low cost by effectively removing 94% MB (initial concentration 20 mg·L ) and 83% TOC/TOC under visible light illumination (50 W; 1.99 mW·cm for 120 min, MFC-PEC). The removal was similar even without light irradiation (MFC-EC). The of the MFC-PEC system was approximately 0.675 kWh·m ·order , whereas that of the MFC-EC system was zero. The system was able to remove 70% COD in tetracycline solution (initial tetracycline concentration 100 mg·L ) after 120 min of visible light illumination; without light, the removal was 15% lower. The destruction of MB and tetracycline in both traditional photocatalysis and photoelectrocatalysis systems was notably low. The electron spin-resonance spectroscopy (ESR) study demonstrated that ·OH was formed under visible light, and ·O was formed without light. The bio-electricity-activated O and ROS (reactive oxidizing species) generation by Fe /TiO effectively degraded the pollutants. This cathodic degradation improved the electricity generation by accepting and consuming more electrons from the bio-anode.

Keywords： Bio-anode Photocatalytic cathode Fe0sup>/TiO2sub> ESR Dye and antibiotics Advanced oxidation

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Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3, Pages 349-358 doi: 10.1007/s11705-015-1523-5

Abstract: Ti -doped TiO nanosheets with tunable phase composition (doped TiO (A/R)) were synthesized via a hydrothermal method with high surface area anatase TiO nanosheets TiO (A) as a substrate, structure directing agent, and inhibitor; the activity was evaluated using a probe reaction-photocatalytic CO conversion to methane under visible light irradiation with H as an electron donor and hydrogen source. High-resolution transmission electron microscope (HRTEM), field emission scanning electron microscope, UV-Vis diffuse reflectance spectra, and X-ray diffraction (XRD) etc., were used to characterize the photocatalysts. XRD and HRTEM measurements confirmed the existence of anatase-rutile phase junction, while Ti and single-electron-trapped oxygen vacancy in the doped TiO (A/R) photocatalyst were revealed byelectron paramagnetic resonance (EPR) measurements. Effects of hydrothermal synthesis temperature and the amount of added anatase TiO on the photocatalytic activity were elucidated. Significantly enhanced photocatalytic activity of doped TiO (A/R) was observed; under the optimized synthesis conditions, CH generation rate of doped TiO (A/R) was 2.3 times that of Ti -doped rutile TiO .

Keywords： Ti3+sup>-doped TiO2sub> photocatalytic CO2sub> conversion visible light irradiation

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Engineering a Coordinatively Unsaturated Au–O–Ti3+sup> Structure Toward Unprecedented H2sub> Efficiency for Low-Temperature Propene Epoxidation with H2sub> and O2sub> Article

Zhaoning Song, Hao Yan, Juncong Yuan, Hongfei Ma, Jianlin Cao, Yongxiang Wang, Qiang Wang, Chong Peng, Feng Deng, Xiang Feng, De Chen, Chaohe Yang, Yongkang Hu

Engineering 2023, Volume 25, Issue 6, Pages 144-156 doi: 10.1016/j.eng.2023.01.008

Abstract:

Since 1998, the Au–O–Ti4+sup> sites of Au/Ti-based catalysts have been widely acceptedby tuning the amount of Si–OH and Bu3sub>NH+sup> in post-treated silicalite-1 seedson conventional Au–O–Ti4+sup> sites.Moreover, ammonia temperature-programmed desorption (NH3sub>-TPD) and X-ray photoelectron spectroscopy>3+sup> sites promote electron transfer between Au and Ti3+sup>, thereby enhancing the O<sub

Keywords： Propene epoxidation H2sub> efficiency Au/Ti bifunctional catalysts Coordinatively unsaturated

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Pentazolate Anion Cyclo-N5sub>–sup>: Development of a New Energetic Material

Qiuhan Lin, Pengcheng Wang, Yuangang Xu, Ming Lu

Engineering 2020, Volume 6, Issue 9, Pages 964-966 doi: 10.1016/j.eng.2020.04.011

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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1, Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employedThe catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated byThe main reason is that the NH generated from the decomposition of NH Cl at high temperatures can be

Keywords： V2sub>O5sub>-WO3sub>/TiO2sub> catalysts thermal deactivation regeneration NH4sub>Cl dilute H2sub>SO4sub> solution

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Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5, Pages 617-633 doi: 10.1007/s11705-022-2258-8

Abstract: MnOxsub> and Sm–Mn catalysts were prepared with the coprecipitation method, and they showedsub> by NH3sub> between 50 and 300 °C in the presence of excess oxygen. 0.10Sm–Mn catalyst indicatedTherefore, it significantly enhances the NO conversion, N2sub> selectivity, and sulfur resistance>2sub> and the amount of surface adsorbed oxygen.The Bronsted acid sites strengthen significantly due to the addition of SO2sub>, enhancing the

Keywords： MnOxsub> Sm–Mn catalyst NH3sub>-SCR sulfur resistance

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Title Author Date Type Operation

Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Journal Article

Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Journal Article

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3sub>OH+sup>/NH2sub>NH3sub>+sup> as B-site Cations

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Journal Article

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

Journal Article

Deciphering the effect of sodium dodecylbenzene sulfonate on up-flow anaerobic sludge blanket treatment of synthetic sulfate-containing wastewater

Journal Article

Calculation of H2sub>+sup> Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Journal Article

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

Journal Article

Performance and mechanism of carbamazepine removal by FeS-SO process: experimental investigation and DFT calculations

Journal Article

Effects of ancillary ligands in acceptorless benzyl alcohol dehydrogenation mediated by phosphine-free cobalt complexes

Journal Article

An electrochemical process that uses an Fe

Chaojie Jiang, Lifen Liu, John C. Crittenden

Journal Article

Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Journal Article

Engineering a Coordinatively Unsaturated Au–O–Ti3+sup> Structure Toward Unprecedented H2sub> Efficiency for Low-Temperature Propene Epoxidation with H2sub> and O2sub>

Zhaoning Song, Hao Yan, Juncong Yuan, Hongfei Ma, Jianlin Cao, Yongxiang Wang, Qiang Wang, Chong Peng, Feng Deng, Xiang Feng, De Chen, Chaohe Yang, Yongkang Hu

Journal Article

Pentazolate Anion Cyclo-N5sub>–sup>: Development of a New Energetic Material

Qiuhan Lin, Pengcheng Wang, Yuangang Xu, Ming Lu

Journal Article

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Journal Article