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Journal ArticleDOI

Photocatalytic oxidation removal of fluoride ion in wastewater by g-C 3 N 4 /TiO 2 under simulated visible light

TLDR
In this article, the photocatalytic activities of g-C3N4/TiO2 nanocomposites to remove fluoride under simulated visible light were evaluated, and the results showed that the fluoride removal rate of the prepared g-c3n4/tiO2 was about three times higher than pure g-n4 due to the rapid charge transfer and the efficient separation of photogenerated electron-hole pairs in heterojunctions between g-nc3n 4 and TiO2.
Abstract
As a highly active photocatalyst, g-C3N4/TiO2 heterojunction nanocomposites were in situ synthesized by hydro-thermal method and calcination using melamine as precursors. The morphology and chemical structure of the prepared photocatalysts were characterized by X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), SEM, UV-vis, and photoluminescence analysis (PLA). At last, the photocatalytic activities of g-C3N4/TiO2 nanocomposites to remove fluoride under simulated visible light were evaluated. Results showed that the fluoride removal rate of the prepared g-C3N4/TiO2 was about three times than pure g-C3N4 due to the rapid charge transfer and the efficient separation of photogenerated electron-hole pairs in heterojunctions between g-C3N4 and TiO2. Heterojunction g-C3N4/TiO2 display the excellent fluoride removal rate due to the rapid charge transfer and efficient separation of electron-hole pairs.

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Citations
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Recent advances in transition metal oxides with different dimensions as electrodes for high-performance supercapacitors

TL;DR: In this article, transition metal oxides were chosen as the promoting materials to design and fabricate appropriately and rationally act as supercapacitor electrodes to harvest the outstanding electrochemical performance of both high energy and power density simultaneously.
Journal ArticleDOI

In-situ constructing visible light CdS/Cd-MOF photocatalyst with enhanced photodegradation of methylene blue

TL;DR: Based on high specific surface area, high porosity of metal-organic frameworks (MOFs) and excellent visible light response of CdS, the CDSS/Cd-MOF nanocomposites were constructed by in-situ sulfurization to form Cds using Cd-MoF as precursor, and the Cds loading was controlled by the dose of thioacetamide as mentioned in this paper .
Journal ArticleDOI

Core–shell activated carbon-ZIF-8 nanomaterials for the removal of tetracycline from polluted aqueous solution

TL;DR: In this paper, the synthesis of activated carbon (AC) andzeolitic imidazolate framework (ZIF) composite (ACZ) with different amounts of AC was performed to investigate the adsorption of tetracycline pharmaceutical from water.
References
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Journal ArticleDOI

Environmental Applications of Semiconductor Photocatalysis

TL;DR: The slow pace of hazardous waste remediation at military installations around the world is causing a serious delay in conversion of many of these facilities to civilian uses as discussed by the authors, which is a serious problem.
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Photocatalysis on TiO2 Surfaces - Principles, Mechanisms, and Selected Results

TL;DR: In this article, the authors focus on interfacial processes and summarize some of the operating principles of heterogeneous photocatalysis systems, including the electron transfer and energy transfer processes in photocatalytic reactions.
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TiO2 photocatalysis and related surface phenomena

TL;DR: The field of photocatalysis can be traced back more than 80 years to early observations of the chalking of titania-based paints and to studies of the darkening of metal oxides in contact with organic compounds in sunlight as discussed by the authors.
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Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability?

TL;DR: It is anticipated that this review can stimulate a new research doorway to facilitate the next generation of g-C3N4-based photocatalysts with ameliorated performances by harnessing the outstanding structural, electronic, and optical properties for the development of a sustainable future without environmental detriment.
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Polymeric Photocatalysts Based on Graphitic Carbon Nitride

TL;DR: The photo-catalytic applications of g-C3N4 -based photocatalysts in the fields of water splitting, CO2 reduction, pollutant degradation, organic syntheses, and bacterial disinfection are reviewed, with emphasis on photocatalysis promoted by carbon materials, non-noble-metal coc atalysts, and Z-scheme heterojunctions.