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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: An effective method for the regeneration of thermally deactivated commercial monolith SCR catalysts waseffects of temperature and the regeneration process on the structural and textural properties of the catalystsThe aggregated V O were partially re-dispersed during the regeneration process, and the intrinsic oxidationof ammonia with high concentrations of O is a factor that suppresses the catalytic activity.

Keywords： V2O5-WO3/TiO2 catalysts     thermal deactivation     regeneration     NH4Cl     dilute H2SO4 solution    

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Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 420-427 doi: 10.1007/s11783-013-0489-0

Abstract: V O -WO /TiO catalyst was poisoned by impregnation with NH Cl, KOH and KCl solution, respectively.The catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), N physisorptionchloride enlarges the pore size of the titania support, and promotes the formation of highly dispersed V=O vanadyl which improves the oxidation of ammonia and the high-temperature SCR activity.nsted acidity of catalysts and decrease the stability of Br?nsted acid sites significantly.

Keywords： V2O5-WO3/TiO2     potassium chloride     poisoning     reducibility     acid    

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Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 142-146 doi: 10.1007/s11705-009-0233-2

Abstract: TiO-AlOmixed oxides with different compositions ranging from 40wt-% to 95wt-% of TiO were prepared bySupports and catalysts were characterized by X-ray diffraction (XRD), physisorption, temperature preprogrammedTiO content in the support had obvious effect on the crystal structure, texture characteristic, acidThe highest catalytic activity was acquired when the TiO content was 50 wt-%.

Keywords： desorption     different     TiO-AlOmixed     physisorption     ethylbenzene    

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Preparation and characterization of SO42-/TiO2 and S2O82-/TiO2 catalysts

MA Xuedan, GUO Daishi, JIANG Qizhong, MA Zifeng, MA Zhengfei, YE Weidong, LI Chunbo

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 45-49 doi: 10.1007/s11705-007-0009-5

Abstract: Nanosized solid superacids SO/TiO and SO/TiO, as well as MCM-41-supported SO/ZrO, were prepared.The results showed that SO/TiO and SO/TiO possess not only nanosized particles with diameters <7.0 nmDifferent from the Lewis acid nature of SO/ZrO/MCM-41, SO/TiO and SO/TiO exhibit mainly Br¢nsted aciditiesSO/TiO even stronger than those on SO/ZrO/MCM-41 were generated when persulfate solution was used asBecause of their distinct acid natures, SO/TiO and SO/TiO exhibited catalytic activities for the cyclization

Keywords： exhibit     Different     persulfate     adsorption-desorption     catalytic    

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Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 156-161 doi: 10.1007/s11783-010-0295-x

Abstract: A series of CeO supported V O catalysts with various loadings were prepared with different calcinationThe effects of O and SO on catalytic activity were also studied.The experimental results showed that NO conversion changed significantly with the different V O loadingWith the V O loading increasing from 0 to 10 wt%, NO conversion increased significantly, but decreasedThe formation of CeVO on the surface of catalysts caused the decrease of redox ability.

Keywords： V2O5/CeO2 catalysts     NH3-SCR (selective catalytic reduction    

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Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1363-5

Abstract:

• A V2O5/TiO2 granular catalyst for

Keywords： NOx     Chlorobenzene     Simultaneous removal     Kinetic study     Performance prediction     V2O5/TiO2     Graphical abstract    

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On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

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, Co3O4/ZSM-5 catalysts with different loadingsCo3O4 can spontaneously disperse on HZSM-5 support with a monolayer dispersionreaction performance. 4% Co3O4/ZSM-5, the catalyst close to the monolayer dispersionIt is proposed the optimal Co3O4/ZSM-5 catalyst can be prepared by loading thecapacity amount of Co3O4 onto HZSM-5 support.

Keywords： Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersionthreshold effect     surface acid sites     surface active O2– anions    

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Investigation of the effects of humic acid and H 2 O 2 on the photocatalytic degradation of atrazine

Chao QIN, Shaogui YANG, Cheng SUN, Jia ZHOU, Manjun ZHAN, Rongjun WANG, Huanxing CAI,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 321-328 doi: 10.1007/s11783-010-0238-6

Abstract: A solution of atrazine in a TiO suspension, an endocrine disruptor in natural water, was tentatively

Keywords： atrazine     retardation effect     photocatalysis     TiO2    

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Preparation of lignin/TiO2 nanocomposites and their application in aqueous polyurethane coatings

Dongjie Yang, Shengyu Wang, Ruisheng Zhong, Weifeng Liu, Xueqing Qiu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 59-69 doi: 10.1007/s11705-018-1712-0

Abstract: A simple method using a water soluble lignin quaternary ammonium salt (LQAS) and TiO has been developedfor the preparation of lignin/TiO nanocomposites in an aqueous medium under mild conditions.The LQAS/TiO nanocomposites contain well-dispersed small particles with excellent ultraviolet (UV) shieldingWhen the LQAS/TiO nanocomposites were blended with WPU, the UV absorbance and the tensile ductilityThe composite WPU hybrid film containing 6 wt-% LQAS/TiO nanocomposite had the highest visible light

Keywords： lignin     TiO2     nanocomposite particle     polyurethane film    

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Cu-doped Bi/Bi2WO6 catalysts for efficient N2 fixation by photocatalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1412-1422 doi: 10.1007/s11705-023-2312-1

Abstract: In this paper, Cu-doped Bi2WO6 was synthesized via a solvothermal method and appliedThe doped Cu had a valence state of +2 and most likely substituted the position of Bi3+./sub>WO6.The optimized NH3 generation rates of Bi/Cu-Bi2WO6 reached 624 and 243/sub>-to-NH3 conversion.

Keywords： Bi2WO6     Cu doping     work function     photocatalytic N2 fixation     charge    

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Plasmonic Au nanoparticles supported on both sides of TiO2 hollow spheres for maximising photocatalytic

Jianwei Lu, Lan Lan, Xiaoteng Terence Liu, Na Wang, Xiaolei Fan

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 665-671 doi: 10.1007/s11705-019-1815-2

Abstract: A strategy of intensifying the visible light harvesting ability of anatase TiO hollow spheres (HSs)was developed, in which both sides of TiO HSs were utilised for stabilising Au nanoparticles (NPs) throughThe composite structure of single Au NP yolk-TiO shell-Au NPs, denoted as Au@Au(TiO , was rendered andAu@Au(TiO showed enhanced photocatalytic activity in the degradation of methylene blue and phenol inaqueous phase under visible light surpassing that of other reference materials such as Au(TiO by 77%

Keywords： TiO2 hollow spheres     plasmonic Au nanoparticles     confinement     visible light     photocatalytic degradation    

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Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 732-743 doi: 10.1007/s11708-021-0772-x

Abstract: photocatalytic properties of core-shell heterojunctions photocatalysts with reversible configuration of TiO2 and Bi2O3 layers were studied.The results show the formation of homogenous TiO2 anatase and Bi2O3In optimal core-shell design, Bi2O3 collects holes from TiO2, leavingelectrons free to react and increase by 5 times the photocatalytic efficiency toward H2 generation

Keywords： photocatalysis     core-shell     heterojunction     H2     TiO2     Bi2O3   

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Synthesis of TiO2 nano-particles and their photocatalytic activity for formaldehyde and methyl orange

XIAO Xinyan, ZHANG Huiping, CHEN Huanqin, LIAO Dongliang

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 178-183 doi: 10.1007/s11705-007-0033-5

Abstract: TiO nano-particles were synthesized by sol-gel technique and characterized by X-ray diffractometer (XRDBased on the orthogonal test results, the optimal condition for TiO preparation was obtained.Results showed that particle sizes were in the range of 10 40 nm, and that prepared TiO had better photocatalytic

Keywords： prepared     photocatalytic activity     apparent     photocatalytic     orthogonal    

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Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 167-171 doi: 10.1007/s11705-007-0031-7

Abstract: The effects of MgO promoter on the physico-chemical properties and catalytic performance of Ni/AlO catalystsIt was found that the MgO promoter benefited from the uniformity of nickel species in the catalysts,Moreover, for the catalysts with a proper amount of MgO promoter, the nickel dispersiveness was enhancedthe reversed water gas shift reaction, which led to an increase in CO selectivity and a decrease in H2

Keywords： excessive     selectivity     decrease     dispersiveness     physico-chemical    

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Solar photocatalytic decomposition of two azo dyes on multi-walled carbon nanotubes (MWCNTs)/TiO 2 composites

Huilong WANG, Shuqin LIU, Hui WANG, Wenfeng JIANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 311-320 doi: 10.1007/s11783-010-0237-7

Abstract: Multi-walled carbon nanotubes (MWCNTs)/TiO composite photocatalysts with high photoactivity were preparedCompared to pure TiO, the combination of MWCNTs with titania could cause a significant absorption shiftThe photocatalytic performances of the MWCNTs/TiO composite catalysts were evaluated for the decompositionThe results showed that the addition of MWCNTs enhanced the adsorption and photocatalytic activity of TiO

Keywords： sol-gel     multi-walled carbon nanotubes (MWCNTs)/TiO2 composite     photocatalysis     azo dye     solar irradiation    

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Title Author Date Type Operation

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

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

Journal Article

Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Journal Article

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Journal Article

Preparation and characterization of SO42-/TiO2 and S2O82-/TiO2 catalysts

MA Xuedan, GUO Daishi, JIANG Qizhong, MA Zifeng, MA Zhengfei, YE Weidong, LI Chunbo

Journal Article

Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Journal Article

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Journal Article

On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

Journal Article

Investigation of the effects of humic acid and H 2 O 2 on the photocatalytic degradation of atrazine

Chao QIN, Shaogui YANG, Cheng SUN, Jia ZHOU, Manjun ZHAN, Rongjun WANG, Huanxing CAI,

Journal Article

Preparation of lignin/TiO2 nanocomposites and their application in aqueous polyurethane coatings

Dongjie Yang, Shengyu Wang, Ruisheng Zhong, Weifeng Liu, Xueqing Qiu

Journal Article

Cu-doped Bi/Bi2WO6 catalysts for efficient N2 fixation by photocatalysis

Journal Article

Plasmonic Au nanoparticles supported on both sides of TiO2 hollow spheres for maximising photocatalytic

Jianwei Lu, Lan Lan, Xiaoteng Terence Liu, Na Wang, Xiaolei Fan

Journal Article

Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

Journal Article

Synthesis of TiO2 nano-particles and their photocatalytic activity for formaldehyde and methyl orange

XIAO Xinyan, ZHANG Huiping, CHEN Huanqin, LIAO Dongliang

Journal Article

Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Journal Article

Solar photocatalytic decomposition of two azo dyes on multi-walled carbon nanotubes (MWCNTs)/TiO 2 composites

Huilong WANG, Shuqin LIU, Hui WANG, Wenfeng JIANG,

Journal Article