Solar assisted degradation of carbendazim in water using clay beads immobilized with TiO2 &amp; Fe doped TiO2

Kaur, Taranjeet; Sraw, Abhishek; Wanchoo, R. K.; Toor, Amrit Pal

doi:10.1016/j.solener.2017.11.033

Cited by 50 publications

(16 citation statements)

References 65 publications

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“…The costs related to photolysis or photocatalysis can be a drawback for its application, since the artificial UV light is expensive [57], and some semiconductor materials, like the TiO 2 P25, requires this type of light, since this catalyst presents high band-gap energy, which can only be activated by UV [57]. Furthermore, the UV radiation represents only 3-5% of the solar spectrum which can make the use of solar light inefficient, despite the fact that it ensures new advantages as mentioned before [57][58][59]. The solar spectrum is mainly constituted by visible radiation (about 45%) [44], so the use of catalysts that can be activated by this type of radiation can reduce the operational costs of photocatalysis.…”

Section: Photolysis and Photocatalysismentioning

confidence: 99%

“…One possibility to decrease the catalyst's band-gap energy is doping the material with metals or non-metals elements due to the introduction of oxygen vacancies or impurity energy levels [59], although this makes the catalyst production more expensive. Cationic metals (such as Fe, Ag, Cu, Pd, Pt, and Au) can create an intermediate band between CB and VB, which will decrease the band-gap energy [44,60].…”

Section: Photolysis and Photocatalysismentioning

confidence: 99%

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Paraben Compounds—Part II: An Overview of Advanced Oxidation Processes for Their Degradation

2021

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Water scarcity represents a problem for billions of people and is expected to get worse in the future. To guarantee people’s water needs, the use of “first-hand water” or the reuse of wastewater must be done. Wastewater treatment and reuse are favorable for this purpose, since first-hand water is scarce and the economic needs for the exploration of this type of water are increasing. In wastewater treatment, it is important to remove contaminants of emerging concern, as well as pathogenic agents. Parabens are used in daily products as preservatives and are detected in different water sources. These compounds are related to different human health problems due to their endocrine-disrupting behavior, as well as several problems in animals. Thus, their removal from water streams is essential to achieve safe reusable water. Advanced Oxidation Processes (AOPs) are considered very promising technologies for wastewater treatment and can be used as alternatives or as complements of the conventional wastewater treatments that are inefficient in the removal of such contaminants. Different AOP technologies such as ozonation, catalytic ozonation, photocatalytic ozonation, Fenton’s, and photocatalysis, among others, have already been used for parabens abatement. This manuscript critically overviews several AOP technologies used in parabens abatement. These treatments were evaluated in terms of ecotoxicological assessment since the resulting by-products of parabens abatement can be more toxic than the parent compounds. The economic aspect was also analyzed to evaluate and compare the considered technologies.

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Section: Photolysis and Photocatalysismentioning

confidence: 99%

Section: Photolysis and Photocatalysismentioning

confidence: 99%

Paraben Compounds—Part II: An Overview of Advanced Oxidation Processes for Their Degradation

2021

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“…Due to its benzimidazolic ring structure, carbendazim is difficult to decompose and leaved in soils for a long time, which has potential harms for humans and animals health . Remain amount of carbendazim is detected by electrochemical methods, which is higher sensitivity, faster analysis time, lower cost, and easier operation than high performance liquid chromatography, fluorescence spectroscopy, or mass spectroscopy . Carbonaceous materials doped with heteroatoms, have large surface area, enhanced durability, high stability, and remarkable electrocatalytic properties, were used as electrode to identify and quantify carbendazim in electrochemical determination .…”

Section: Figurementioning

confidence: 99%

Nozzle‐Less Electrospun Nitrogen‐Doped Hollow Carbon Nanofibers as Enhanced Sensing Platform for Carbendazim Electrochemical Detection

Pan

Wang

et al. 2019

ChemistrySelect

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“…Aeroxide P25 commercial TiO 2 nanoparticles (Evonik) are by far the most used in the literature for supported photocatalytic experiments. [17,18,21,22,24,25,28,29] However, in some cases, in situ synthesized NPs, through the respective organic precursors, are also used. [16,19] Finally, regarding the type of solar reactor, the slurry (batch) reactors are, by far, the most common ones found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Porous Silica Microspheres with Immobilized Titania Nanoparticles for In‐Flow Solar‐Driven Purification of Wastewater

et al. 2021

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In this paper, inorganic silica microspheres with interconnected macroporosity are tested as a platform for designing robust and efficient photocatalytic systems for a continuous flow reactor, enabling a low cost and straightforward purification of wastewater through solar‐driven photocatalysis. The photocatalytically active microspheres are prepared by wet impregnation of porous silica scaffolds with Trizma‐functionalized anatase titania (TiO 2 ) nanoparticles (NPs). NPs loading of 22 wt% is obtained in the form of a thin and well‐attached layer, covering the external surface of the microspheres as well as the internal surface of the pores. The TiO 2 loading leads to an increase of the specific surface area by 26%, without impacting the typically interconnected macroporosity ( ≈ 60%) of the microspheres, which is essential for an efficient flow of the pollutant solution during the photocatalytic tests. These are carried out in a liquid medium for the decomposition of methyl orange and paracetamol. In addition to photocatalytic activity under continuous flow, the microspheres offer the advantage that they can be easily removed from the reaction medium, which is an appealing aspect for industrial applications. In this work, the typical issues of TiO 2 NPs photocatalysts are circumvented, without the need for elaborate chemistries, and for low availability and expensive raw materials.

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Solar assisted degradation of carbendazim in water using clay beads immobilized with TiO2 & Fe doped TiO2

Cited by 50 publications

References 65 publications

Paraben Compounds—Part II: An Overview of Advanced Oxidation Processes for Their Degradation

Paraben Compounds—Part II: An Overview of Advanced Oxidation Processes for Their Degradation

Nozzle‐Less Electrospun Nitrogen‐Doped Hollow Carbon Nanofibers as Enhanced Sensing Platform for Carbendazim Electrochemical Detection

Porous Silica Microspheres with Immobilized Titania Nanoparticles for In‐Flow Solar‐Driven Purification of Wastewater

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