Synthesis and characterization of alkali metal molybdates with high catalytic activity for dye degradation

Zhang, Yili; Zhang, Zhang; Zhou, Tuantuan; Lu, Peng; Gao, Yanshan; Ye, Feng; Umar, Ahmad; Wang, Qiang

doi:10.1039/c6ra12437b

Cited by 15 publications

(4 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was reasonable that Na 2 Mo 2 O 7 was formed in the preparation of the Mo-TP and the Mo-HS. Na 2 Mo 2 O 7 possessed an excellent catalytic activity and Na 2 MoO 4 was not the active species, which was quite in line with the result [25,26,27]. In addition, O 2− ions in the oxygen deficient regions in Mo-TP and Mo-HS promoted the formation of active ·OH radicals [28].…”

Section: Resultssupporting

confidence: 72%

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Liu

et al. 2018

Materials

View full text Add to dashboard Cite

The nanostructure of ZnAl-layered double hydroxide (ZnAl-LDH) was designed to promote the catalytic performance of Mo-based ZnAl-LDH (Mo/ZnAl-LDH) catalysts, in a catalytic wet air oxidation (CWAO) process, under room temperature and pressure, in degradation of dye wastewater. Four most commonly used preparation methods, traditional precipitation (TP), hydrothermal synthesis (HS), sol-gel (SG), and urea co-precipitation (UC) were employed to prepare the ZnAl-LDH. The resulting Mo/ZnAl-LDH samples were contrasted through surface area, crystal structure, chemical state, and morphology. The degradation of cationic orchid X-BL, under room temperature and pressure, was developed to determine the catalytic activity of these Mo/ZnAl-LDH samples. The results showed that the nanostructure of ZnAl-LDH, prepared by HS, enhanced the adhesion of the catalytic active component, thus Mo/ZnAl-LDH had the highest catalytic activity of 84.2% color removal efficiency and 73.9% total organic carbon removal efficiency. Specific Mo species, such as Na2Mo2O7, Mo dispersion, and O2− ions were proved to be related with catalytic performance. These findings preliminarily clarified that LDHs preparation methods make a difference in the performance of Mo/LDHs.

show abstract

Section: Resultssupporting

confidence: 72%

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Liu

et al. 2018

Materials

View full text Add to dashboard Cite

show abstract

“…39,40 Similarly, Mo involved supported, bimetallic and hybrid catalysts have been found to be efficient for O 2 activation under mild conditions recently. [41][42][43] In addition, Fe 2 O 3 -CeO 2 -TiO 2 / Al 2 O 3 , supported bimetallic Au-Pd materials and Zn(0) were all synthesized for CWAO at R.T. [44][45][46] Therefore, the key point in the activation of O 2 for the oxidative degradation of aqueous organics under ambient conditions is the rational design and scientific preparation of catalysts.…”

Section: Introductionmentioning

confidence: 99%

Activation of O₂ over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

Hao

Wang

et al. 2022

Environ. Sci.: Nano

View full text Add to dashboard Cite

show abstract

“…Three additional XRD peaks appear during the discharge process and get intense with the discharging as indicated with red arrows in Figure b. These peaks are matched with the additional Na 2 Mo 2 O 7 (PDF 73–1797) phase . The peak intensity of the Na 2 Mo 2 O 7 phase is higher in the fully discharged electrode.…”

Section: Resultsmentioning

confidence: 85%

Highly Stable Zero-Stain Na₂MoO₄/C Nanocomposite Anode for Long Life Na-Ion Batteries

Ali

Kiani

Iftikhar

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

The structure of the electrode material has been found to affect the electrochemical performance of rechargeable batteries. Thus, stable structured materials with large tunnels can provide long cycle life to help establish highperformance batteries. Herein, the electrochemical properties and associated reaction mechanism of a stable structured Na 2 MoO 4 anode material are investigated in sodium-ion batteries. Na 2 MoO 4 /C nanocomposite is prepared using the ball-milling method and size of the particles is reduced from micro-to nanometers. The composite electrode shows high cycling stability exhibiting a specific capacity of 84 mAh g −1 at the first cycle and 81 mAh g −1 at the 1000th cycle, demonstrating a capacity retention of >96%. The reaction mechanism is evaluated with synchrotronbased in situ XRD and X-ray absorption spectroscopy. The results thus obtained, imply that the Na 2 MoO 4 /C anode shows low volume change (0.68%) in crystal structure upon cycling and Mo−O tetrahedral coordination is reversibly affected by the sodium insertion/extraction process.

show abstract

Synthesis and characterization of alkali metal molybdates with high catalytic activity for dye degradation

Abstract: In this contribution, the synthesis and catalytic activity of alkali metal molybdates for the degradation of cationic dyes under ambient conditions were systematically studied.

Cited by 15 publications

References 45 publications

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Activation of O₂ over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

Highly Stable Zero-Stain Na₂MoO₄/C Nanocomposite Anode for Long Life Na-Ion Batteries

Contact Info

Product

Resources

About

Synthesis and characterization of alkali metal molybdates with high catalytic activity for dye degradation

Abstract: In this contribution, the synthesis and catalytic activity of alkali metal molybdates for the degradation of cationic dyes under ambient conditions were systematically studied.

Cited by 15 publications

References 45 publications

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Nanostructure Design and Catalytic Performance of Mo/ZnAl-LDH in Cationic Orchid X-BL Removal

Activation of O2 over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

Highly Stable Zero-Stain Na2MoO4/C Nanocomposite Anode for Long Life Na-Ion Batteries

Contact Info

Product

Resources

About

Activation of O₂ over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics

Highly Stable Zero-Stain Na₂MoO₄/C Nanocomposite Anode for Long Life Na-Ion Batteries