Efficient and stable Nb 2 O 5 modified g-C 3 N 4 photocatalyst for removal of antibiotic pollutant

Hong, Yuanzhi; Li, Changsheng; Zhang, Guangyi; Meng, Yadong; Yin, Bingxin; Zhao, Yong; Shi, Weidong

doi:10.1016/j.cej.2016.04.092

Cited by 324 publications

(76 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The enlarged profiles of the g-C 3 N 4 , CuO and all the g-C 3 N 4 /CuO nanocomposites are shown in Figure 1b. With an increased content of CuO in the g-C 3 N 4 /CuO nanocomposite, the characteristic peaks of g-C 3 N 4 were gradually decreased, and the diffraction peaks of CuO were all slowly increased, indicating the successful synthesis of g-C 3 N 4 /CuO nanocomposite [36]. Nevertheless, the (002) reflection peak of the laminated g-C 3 N 4 gradually shifted to a small angle direction along with an increased loading percentage of CuO nanorods on g-C 3 N 4 , which indicated that a certain number of CuO nanorods were grown in situ on the inter-lamination of g-C 3 N 4 , resulting in the increase of inter-layer spacing [37].…”

Section: Resultsmentioning

confidence: 99%

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Tan

et al. 2017

Materials

View full text Add to dashboard Cite

Novel graphitic carbon nitride/CuO (g-C3N4/CuO) nanocomposite was synthesized through a facile precipitation method. Due to the strong ion-dipole interaction between copper ions and nitrogen atoms of g-C3N4, CuO nanorods (length 200–300 nm, diameter 5–10 nm) were directly grown on g-C3N4, forming a g-C3N4/CuO nanocomposite, which was confirmed via X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS). Finally, thermal decomposition of ammonium perchlorate (AP) in the absence and presence of the prepared g-C3N4/CuO nanocomposite was examined by differential thermal analysis (DTA), and thermal gravimetric analysis (TGA). The g-C3N4/CuO nanocomposite showed promising catalytic effects for the thermal decomposition of AP. Upon addition of 2 wt % nanocomposite with the best catalytic performance (g-C3N4/20 wt % CuO), the decomposition temperature of AP was decreased by up to 105.5 °C and only one decomposition step was found instead of the two steps commonly reported in other examples, demonstrating the synergistic catalytic activity of the as-synthesized nanocomposite. This study demonstrated a successful example regarding the direct growth of metal oxide on g-C3N4 by ion-dipole interaction between metallic ions, and the lone pair electrons on nitrogen atoms, which could provide a novel strategy for the preparation of g-C3N4-based nanocomposite.

show abstract

Section: Resultsmentioning

confidence: 99%

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Tan

et al. 2017

Materials

View full text Add to dashboard Cite

show abstract

“…46 The semicircle arc in the EIS spectra usually indicates the interface layer resistance of the surface of electrode material. 48 Fig. 7 (a) shows the Nyquist plots of the MnO 2 and Ag@MnO 2 (5%) photocatalysts under visible light irradiation.…”

Section: Photoelectrochemical Propertiesmentioning

confidence: 99%

Constructing novel Ag nanoparticles anchored on MnO₂ nanowires as an efficient visible light driven photocatalyst

Saravanakumar¹,

Muthuraj²,

Vadivel³

2016

RSC Adv.

112

View full text Add to dashboard Cite

In this study, novel Ag@MnO 2 nanowires were constructed by one step hydrothermal method, which exhibited excellent efficiency towards the photodegradation of organic contaminants under visible-light driven irradiation. The resulting Ag@MnO 2 nanowires were systematically characterized by various spectroscopic and microscopic techniques.Morphological characterizations show that the Ag nanoparticles are well anchored on the surface of the MnO 2 nanowires. The N 2 adsorption/desorption studies revealed that the as prepared photocatalyst possess mesoporosity. The optical properties and energy band gap structures were studied by UV-visible diffuse reflectance spectroscopy. The photocatalytic activity enhancement of Ag@MnO 2 (5%) nanowires could be ascribed to the efficient separation of photogenerated electron-hole pairs compared to other Ag@MnO 2 nanowires and pure MnO 2 . The possible photocatalytic mechanism was proposed for this enhanced charge separation performance using photoluminescence spectra analysis, electrochemical impedance spectroscopy (EIS) spectra and photocurrent density. Furthermore, photocatalytic mechanism investigations demonstrate that • OH and O 2 •− play a key role and h + plays a minor role in the photocatalytic process. We believe that our findings can open a new avenue for photocatalytic applications of Ag@MnO 2 nanowires.

show abstract

“…Recently, photocatalytic TC degradation has attracted more and more concentration, as the photocatalysis technology is economic, environmental and nontoxic and owns considerable application. Various photocatalysts have been developed and applied into TC degradation, such as TiO 2 5, V 2 O 5 6, NaNbO 3 7 and g-C 3 N 4 8.…”

mentioning

confidence: 99%

Fabrication, Characterization and Response Surface Method (RSM) Optimization for Tetracycline Photodegration by Bi3.84W0.16O6.24- graphene oxide (BWO-GO)

Song

Wang

et al. 2016

Sci Rep

Self Cite

View full text Add to dashboard Cite

RSM is a powerful tool for optimizing photocatalytic processes. The BWO-GO photocatalysts have been successfully synthesized via inorganic-salt-assisted hydrothermal method. XRD, TEM, FESEM, HRTEM and STEM are used to characterize BWO-GO heterojunction. UV-vis, PL, ESR and radical scavenger experiments are used to explore the photocatalysis mechanism. The photocatalysts are evaluated by TC photodegradation under visible light irradiation. And the main active species in TC photodegradation is ·O2−. Response surface methodology is used to optimize three key independent operating parameters, namely photocatalyst dosage (X1), percentages of GO (X2) and reaction time (X3), for TC photodegradation. The central composite design (CCD) is used to conduct experiments. The results showed that TC removal is significantly affected by the synergistic effect of linear term of X1 and X3. However, the quadratic terms of X12 and X32 had an antagonistic effect on T removal. The obtained RSM model (R2 = 0.9206) shows a satisfactory correlation between experimental and predicted values of TC removal. The optimized conditions is of 0.3 g photocatalyst dosage, 1.49 wt% GO loaded percentage and 90 min reaction time. Under this condition, theoretical prediction removal is 80.22% and the actual removal is 78.43%.

show abstract

Efficient and stable Nb 2 O 5 modified g-C 3 N 4 photocatalyst for removal of antibiotic pollutant

Cited by 324 publications

References 62 publications

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Constructing novel Ag nanoparticles anchored on MnO₂ nanowires as an efficient visible light driven photocatalyst

Fabrication, Characterization and Response Surface Method (RSM) Optimization for Tetracycline Photodegration by Bi3.84W0.16O6.24- graphene oxide (BWO-GO)

Contact Info

Product

Resources

About

Efficient and stable Nb 2 O 5 modified g-C 3 N 4 photocatalyst for removal of antibiotic pollutant

Cited by 324 publications

References 62 publications

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Constructing novel Ag nanoparticles anchored on MnO2 nanowires as an efficient visible light driven photocatalyst

Fabrication, Characterization and Response Surface Method (RSM) Optimization for Tetracycline Photodegration by Bi3.84W0.16O6.24- graphene oxide (BWO-GO)

Contact Info

Product

Resources

About

Constructing novel Ag nanoparticles anchored on MnO₂ nanowires as an efficient visible light driven photocatalyst