Visible-light-driven removal of tetracycline antibiotics and reclamation of hydrogen energy from natural water matrices and wastewater by polymeric carbon nitride foam

Wang, Hou; Wu, Yan; Feng, Mingbao; Tu, Wenguang; Tong, Xiao; Xiong, Tao; Ang, Edison Huixiang; Yuan, Xingzhong; Chew, Jia Wei

doi:10.1016/j.watres.2018.07.025

Cited by 490 publications

(145 citation statements)

References 53 publications

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“…Most WWTPs are not devised to remove bio-recalcitrant substances; thus, many pharmaceuticals are continuously being discharged into receiving water bodies (Bobu et al, 2008;Wang et al, 2018a). As their efficiency to eliminate bio-recalcitrant compounds in wastewater has already been proved (Barndõk et al, 2016;Hermosilla et al, 2012), advanced oxidation processes (AOPs) are a potential good treatment alternative for them.…”

Section: Introductionmentioning

confidence: 99%

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

Hermosilla

Cui

Nadagouda

et al. 2020

Journal of Hazardous Materials

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Fenton processes are promising wastewater treatment alternatives for bio-recalcitrant compounds. Three different methods (i.e., reverse microemulsion, sol-gel, and combustion) were designed to synthesize environmentally friendly ferrites as magnetically recoverable catalysts to be applied for the decomposition of two pharmaceuticals (ciprofloxacin and carbamazepine) that are frequently detected in water bodies. The catalysts were used in a heterogeneous solar photo-Fenton treatment to save the cost of applying high-energy UV radiation sources, and was performed under a slightly basic pH to avoid metal leaching and adding salts for pH adjustment. All the developed catalysts resulted in the effective treatment of ciprofloxacin and carbamazepine in both synthetic and real domestic wastewater. In particular, the sol-gel synthesized ferrite was more magnetic and more suitable for reuse. The degradation pathways of both compounds were elucidated for this treatment. The degradation of ciprofloxacin involved attacks to the quinolone and piperazine rings. The degradation pathway of carbamazepine involved the formation of hydroxyl carbamazepine and dihydroxy carbamazepine before yielding acridine by hydrogen abstraction, decarboxylation, and amine cleavage, which would be further oxidized.

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Section: Introductionmentioning

confidence: 99%

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

Hermosilla

Cui

Nadagouda

et al. 2020

Journal of Hazardous Materials

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“…The theoretical DFT observation demonstrates that PCN based on tri‐s‐triazine subunits are energetically more stable as compared with PCN based on s‐triazine rings . On the preparation base, prolonged efforts have been implemented to synthesize the PCN that have good structure determination and show high photocatalytic activity for water splitting . Similarly, the PCN synthesized from urea precursor demonstrate a prominent stability based on tri‐s‐triazine and hence evaluated a fueled photocatalytic activity in the field of water splitting and CO 2 photoreduction.…”

Section: Introductionmentioning

confidence: 99%

A facile supramolecular aggregation of trithiocyanuric acid with PCN for high photocatalytic hydrogen evolution from water splitting

Hayat

2019

Int J Energy Res

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Summary Polymeric carbon nitride (PCN) is a promising hotspot metal‐free material for artificial photosynthesis, solar energy conversion, and photo degradation of pollutant, hence predicting unsatisfactory photocatalytic efficiency due to fast charge recombination. Here, we implemented a remediation approach to fuel its catalytic performance by interpretation of a sulfur rich‐material, ie, trithiocyanuric acid (TTCA) in the framework of PCN by traditional one facile protocol called copolymerization (molecular assembled) under nitrogen at 550°C. Results demonstrate that the integration of TTCA comonomer into the triazine oligomers of PCN widens the specific surface area, extends the lifetime of photoexcited charge carriers, speeds up the rate of photogenerated electrons optimized from lower energy state toward high energy state, lowers the rate of charge recombination and band gap, and modulates its electronic structure and optical properties in a regular fashion as compared with pristine PCN. Ultimately, due to aforementioned modification, the copolymerized PCN semiconductor predicts superior photocatalytic properties of hydrogen energy production about 7 times higher than that of pristine PCN from the water splitting system.

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“…Semiconductor photocatalysis is regarded as a green technology in clean energy production and environmental pollution elimination . And photocatalytic degradation has been proved to be an efficient and green method for the removal of TC pollutant in comparison with the traditional methods of adsorption and microbial treatment …”

Section: Introductionmentioning

confidence: 99%

Fe (III)‐grafted Bi₂MoO₆ nanoplates for enhanced photocatalytic activities on tetracycline degradation and HMF oxidation

Xue

Huang

Zong

et al. 2019

Applied Organom Chemis

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Fe (III)-grafted Bi 2 MoO 6 nanoplates (Fe (III)/BMO) with varying small quantity of Fe (III) clusters modification were fabricated through a simple hydrothermal and impregnation process. The characterization results indicate that the modification of Fe (III) clusters on the surface of Bi 2 MoO 6 nanoplates with intimate interfacial contact is beneficial to the expansion of visible light absorption range and the separation of photoinduced carriers during the interface charge transfer process. The photocatalytic properties of the samples were studied by degradation of tetracycline (TC) and selective aerobic oxidation of biomass-derived chemical 5-hydroxymethylfuraldehyde (HMF) under visible light. The 1.5 wt% Fe (III) clusters-grafted Bi 2 MoO 6 nanoplates exhibited optimum photocatalytic activity, which is the TC degradation kinetic rate constant is 5.3 times higher than that of bare BMO, and the highest HMF conversion of 32.62% can be obtained with a selectivity of 95.30%. Furthermore, a possible visible light photocatalysis mechanism over Fe (III)/BMO sample has been proposed. This study may supply some insight for the development of visiblelight-driven Bi 2 MoO 6 -based photocatalysts applicable to both environmental remediation and biomass-derived chemical transformation.

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Visible-light-driven removal of tetracycline antibiotics and reclamation of hydrogen energy from natural water matrices and wastewater by polymeric carbon nitride foam

Cited by 490 publications

References 53 publications

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

A facile supramolecular aggregation of trithiocyanuric acid with PCN for high photocatalytic hydrogen evolution from water splitting

Fe (III)‐grafted Bi₂MoO₆ nanoplates for enhanced photocatalytic activities on tetracycline degradation and HMF oxidation

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Visible-light-driven removal of tetracycline antibiotics and reclamation of hydrogen energy from natural water matrices and wastewater by polymeric carbon nitride foam

Cited by 490 publications

References 53 publications

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

Environmentally friendly synthesized and magnetically recoverable designed ferrite photo-catalysts for wastewater treatment applications

A facile supramolecular aggregation of trithiocyanuric acid with PCN for high photocatalytic hydrogen evolution from water splitting

Fe (III)‐grafted Bi2MoO6 nanoplates for enhanced photocatalytic activities on tetracycline degradation and HMF oxidation

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Fe (III)‐grafted Bi₂MoO₆ nanoplates for enhanced photocatalytic activities on tetracycline degradation and HMF oxidation