Au-nanoparticle/nanopillars TiO2 meso-porous thin films in the degradation of tetracycline using UV-A light

Tiwari, Alka; Shukla, Alok; Lalliansanga,; Tiwari, Diwakar; Lee, Seung Mok

doi:10.1016/j.jiec.2018.09.027

Cited by 57 publications

(18 citation statements)

References 67 publications

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“…10. The 2-Propanol and NaHCO 3 are good scavengers of OH radicals whereas the NaN 3 is a scavenger for superoxide anion [28,29]. It is interesting to observe that the presence of 2-propanol and NaHCO 3 cause to decrease the percentage degradation of MB, whereas NaN 3 the double bond in MB molecules are attacked by hydroxyl radical species which results in the degradation of the radicals generated from the ICN are mainly responsible for the degradation of MB in aqueous media.…”

Section: Effect Of Scavengersmentioning

confidence: 99%

Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue

hmunsiama¹,

Lee²

2019

stj

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In this study, the iron-pillared clay nanocatalyst (ICN) was employed as a nanocatalyst for decolorization of methylene blue (MB) in aqueous solutions without hydrogen peroxide. The changes in clay structure after the incorporation of iron-oxide particles was studied with the help of XRD analytical data. The SEM micrographs showed higher heterogeneous structure of ICN compared to pristine clay and the specific surface area of ICN (82.54 m2/g) is considerably higher than the unmodified clay (63.41 m2/g). Further, the EDX analytical data indicate the successful incorporation of iron-oxide into bentonite clay. Batch experiments showed that ICN could degrade MB within pH 3.0 to 11.0 and it is efficient even at higher concentrations. The degradation is very fast and more than 90% is removed within 30 mins. A small amount of ICN is effective for degradation of MB and the reusability test showed that ICN can be reuse for several times for the degradation of MB in aqueous solutions. The effect of scavengers studies indicate that the ·OH radicals generated from the ICN are responsible in the degradation of MB. This study indicates that ICN must be low cost and environmentally friendly active nanocatalyst for degradation of MB present in aquatic environment.

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Section: Effect Of Scavengersmentioning

confidence: 99%

Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue

hmunsiama¹,

Lee²

2019

stj

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“…Standard water treatment systems are unable to rid waterways of such antibiotics pollutants, such as tetracycline, creating a need for oxidation processes including TiO 2 photocatalyst [ 16 ]. Tiwari et al aimed to improve the limited photocatalytic functions of TiO 2 through the doping of noble metal nanoparticles of Au onto the titanium dioxide.…”

Section: Nanopillars For Removing Organic Pollutantsmentioning

confidence: 99%

Improving Photocatalytic Performance Using Nanopillars and Micropillars

Waite

Hunt

2021

Materials

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A recent research emphasis has been placed on the development of highly crystallized nanostructures as a useful technology for many photocatalytic applications. With the unique construction of semiconductor transition metal oxide nanostructures in the form of nanopillars—artificially designed pillar-shaped structures grouped together in lattice-type arrays—the surface area for photocatalytic potential is increased and further enhanced through the introduction of dopants. This short review summarizes the work on improving the efficiency of photocatalyst nanopillars through increased surface area and doping within the applications of water splitting, removal of organic pollutants from the environment, photoswitching, soot oxidation, and photothermalization.

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“…Moreover, the effect of the typology of the light source (translated into energy) that participated in the process was established since sunlight increased its photocatalytic activity. In the case of ultraviolet light irradiation, a selective behavior was observed in the degradation of some drugs [25]- [26], [38]- [40], [42], [46]- [47].…”

Section: Descriptive Analysis Of the Variablesmentioning

confidence: 99%

Wastewater Treatment by Heterogeneous Photocatalysis: A Systematic Review

Castaño

Herrera

Castañeda

2021

Rev. Fac. Cienc. Básicas

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Pharmaceutical wastewater contains compounds that, in low concentrations, affect ecosystems for being endocrine disruptors. Therefore, advanced oxidation processes have been proposed as an ideal treatment strategy. Within these technologies, heterogeneous photocatalysis stands out as a high-efficiency and low-cost technology. This research provides a systematic review on the degradation of wastewater from the pharmaceutical industry and the significant advances concerning its degradation by heterogeneous photocatalysis. We used Thesaurus, keywords, and Boolean search in the selected databases: Dialnet, Science Direct, Scopus, Redalyc, SciELO, ProQuest, and American Chemical Society. We also set inclusion/exclusion criteria based on the PRISMA statement, developed a bibliometric parameter, performed a statistical analysis, and established the bestoperating conditions for technology implementation. In conclusion, heterogeneous photocatalysis is a promising proposal for treating the study matrix.

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Au-nanoparticle/nanopillars TiO2 meso-porous thin films in the degradation of tetracycline using UV-A light

Cited by 57 publications

References 67 publications

Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue

Potential of Iron Pillared Clay as Active Nanocatalyst for Rapid Decolorization of Methylene Blue

Improving Photocatalytic Performance Using Nanopillars and Micropillars

Wastewater Treatment by Heterogeneous Photocatalysis: A Systematic Review

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