2D-Bi4NbO8Cl nanosheet for efficient photocatalytic degradation of tetracycline in synthetic and real wastewater under visible-light: Influencing factors, mechanism and degradation pathway

BiOBr/BiOI photocatalyst with different molar ratios was synthesized via a simple one-step solvothermal method. The uniform flower-like BiOBr/BiOI (3 : 1) owns high photocatalytic degradation efficiency, excellent recyclability and stability.

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Photocatalytic degradation of naproxen by a H2O2-modified titanate nanomaterial under visible light irradiation

Catalysis Science & Technology ◽

10.1039/c9cy00965e ◽

2019 ◽

Vol 9 (17) ◽

pp. 4614-4628 ◽

Cited By ~ 12

Author(s):

Gongduan Fan ◽

Jiajun Zhan ◽

Jing Luo ◽

Jin Zhang ◽

Zhong Chen ◽

...

Keyword(s):

Catalytic Activity ◽

Visible Light ◽

Photocatalytic Degradation ◽

Influencing Factors ◽

Visible Light Irradiation ◽

Intermediate Product ◽

Degradation Mechanism ◽

Light Irradiation ◽

Transformation Pathways

A H2O2-modified titanate nanomaterial was synthesized to improve catalytic activity. The influencing factors, intermediate product transformation pathways and degradation mechanism of the photodegradation process of NPX by the HTNM were studied.

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Visible light driven photocatalytic degradation of fluoroquinolone levofloxacin drug using Ag2O/TiO2 quantum dots: a mechanistic study and degradation pathway

New Journal of Chemistry ◽

10.1039/c7nj02053h ◽

2017 ◽

Vol 41 (20) ◽

pp. 12079-12090 ◽

Cited By ~ 28

Author(s):

Amandeep Kaur ◽

Deepak B. Salunke ◽

Ahmad Umar ◽

Surinder Kumar Mehta ◽

A. S. K. Sinha ◽

...

Keyword(s):

Quantum Dots ◽

Photocatalytic Activity ◽

Visible Light ◽

Photocatalytic Degradation ◽

Degradation Pathway ◽

Mechanistic Study ◽

Visible Light Driven

Ag2O/TiO2 QDs exhibited a photocatalytic activity of 81% for the degradation of levofloxacin under visible light, which is higher than those of commercially available catalysts.

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Photocatalytic Performance and Degradation Pathway of Rhodamine B with TS-1/C3N4 Composite under Visible Light

Nanomaterials ◽

10.3390/nano10040756 ◽

2020 ◽

Vol 10 (4) ◽

pp. 756 ◽

Cited By ~ 3

Author(s):

Jingjing Yang ◽

Hongqing Zhu ◽

Yuan Peng ◽

Pengxi Li ◽

Shuyan Chen ◽

...

Keyword(s):

Electron Microscopy ◽

Visible Light ◽

Photocatalytic Degradation ◽

Rhodamine B ◽

Photocatalytic Performance ◽

Degradation Products ◽

Nitrogen Adsorption ◽

Degradation Pathway ◽

Active Species ◽

Photogenerated Electrons

TS-1/C3N4 composites were prepared by calcining the precursors with cooling crystallization method and were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), UV-Vis diffuse reflection spectrum (DRS) and nitrogen adsorption–desorption isotherm. The photocatalytic performance of TS-1/C3N4 composites was investigated to degrade Rhodamine B (RhB) under visible light irradiation. The results showed that all composites exhibited better photocatalytic performance than pristine TS-1 and C3N4; TS-1/C3N4-B composite (the measured mass ratio of TS-1 to C3N4 is 1:4) had best performance, with a rate constant of 0.04166 min−1, which is about two and ten times higher than those of C3N4 and TS-1, respectively. We attributed the enhanced photocatalytic performance of TC-B to the optimized heterostructure formed by TS-1 and C3N4 with proper proportion. From the results of photoluminescence spectra (PL) and the enhanced photocurrent, it is concluded that photogenerated electrons and holes were separated more effectively in TS-1/C3N4 composites. The contribution of the three main active species for photocatalytic degradation followed a decreasing order of ·O2−, ·OH and h+. The degradation products of RhB were identified by liquid chromatography tandem mass spectrometry (LC-MS/MS), and the possible photocatalytic degradation pathways were proposed.

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Reduced Graphene Oxide/ZnIn2S4 Nanocomposite Photocatalyst with Enhanced Photocatalytic Performance for the Degradation of Naproxen under Visible Light Irradiation

Catalysts ◽

10.3390/catal10060710 ◽

2020 ◽

Vol 10 (6) ◽

pp. 710

Author(s):

Kun Fu ◽

Yishuai Pan ◽

Chao Ding ◽

Jun Shi ◽

Huiping Deng

Keyword(s):

Graphene Oxide ◽

Visible Light ◽

Photocatalytic Degradation ◽

Reduced Graphene Oxide ◽

Environmental Remediation ◽

Dominant Role ◽

Degradation Pathway ◽

Light Illumination ◽

One Pot ◽

Reduced Graphene

The development of photocatalysts with visible light response is of great significance to cope with energy crisis and environmental remediation. In this study, a visible light-driven photocatalyst reduced graphene oxide/ZnIn2S4 (rGO/ZIS) was prepared by a facile one-pot hydrothermal method. The photocatalyst was used for the degradation of naproxen under visible light illumination and it exhibited remarkably degradation efficiency (nearly 99% within 60 min). The improved photocatalytic degradation performance can be attributed to the enhancement of light adsorption capacity and effective separation of photoinduced electron–hole pairs. The reactive species quenching experiments and EPR measurements demonstrated that superoxide radical (O2−) and hole (h+) play a dominant role in the photocatalytic degradation reactions. In addition, the degradation intermediates were identified and the degradation pathway was suggested.

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Visible Light Photocatalytic Degradation of Methylene Blue over N-Doped TiO2

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.609-610.141 ◽

2014 ◽

Vol 609-610 ◽

pp. 141-146 ◽

Cited By ~ 2

Author(s):

Yu Long Hu ◽

Li Qing Zhou ◽

Hong Fang Liu ◽

Xing Peng Guo

Keyword(s):

Methylene Blue ◽

Nitrogen Atom ◽

Visible Light ◽

Photocatalytic Degradation ◽

Functional Group ◽

Degradation Process ◽

Degradation Pathway ◽

Methyl Group ◽

Intermediate Products ◽

Visible Light Photocatalytic

The visible light photocatalytic degradation of methylene blue (MB) over N-doped TiO2 (N-TiO2) was investigated. The intermediate products of MB in the photocatalytic degradation process were analyzed by HPLC-MS technique. The results show that the cleavages of CS+=C and CN=C functional group in the central aromatic ring and the cleavage of N-C bond between the methyl group and nitrogen atom all can occur in the visible light photocatalytic degradation process over N-TiO2, but MB is difficult to be mineralized completely to the inorganic products. A detailed degradation pathway of MB has been proposed on the basis of a careful identification of intermediate products.

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