Investigation of textural properties and photocatalytic activity of PbO/TiO2 and Sb2O3/TiO2 towards the photocatalytic degradation Benzophenone-3 UV filter

Wang, Zhao; Deb, Anjan; Srivastava, Varsha; Iftekhar, Sidra; Ambat, Indu; Sillanpää, Mika

doi:10.1016/j.seppur.2019.115763

Cited by 41 publications

(21 citation statements)

References 51 publications

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“…The peak intensities of DMPO-HO• in 1 mM H 2 O 2 solution catalyzed by the Mn-doped membrane were much higher than those in H 2 O 2 solutions with and without catalysis of the pristine membrane (Figure 4c). Moreover, three characteristic peaks of TEMP-1 O 2 with an intensity ratio of 1:1:1 were significantly observed in a 1 mM H 2 O 2 solution catalyzed by the Mn-doped membrane [31] (Figure 4d), while these were not detectable in 1 mM H 2 O 2 solutions with or without catalysis of the pristine membrane. These results demonstrated the generation and coexistence of HO• and 1 O 2 in H 2 O 2 solution catalyzed by the Mndoped membrane [32,33].…”

Section: Catalytic Activity Of Ceramic Membranes In H 2 O 2 Decompositionmentioning

confidence: 98%

In-Situ H2O2 Cleaning for Fouling Control of Manganese-Doped Ceramic Membrane through Confined Catalytic Oxidation Inside Membrane

Tang

Song

et al. 2021

Membranes

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This work presents an effective approach for manganese-doped Al2O3 ceramic membrane (Mn-doped membrane) fouling control by in-situ confined H2O2 cleaning in wastewater treatment. An Mn-doped membrane with 0.7 atomic percent Mn doping in the membrane layer was used in a membrane bioreactor with the aim to improve the catalytic activity toward oxidation of foulants by H2O2. Backwashing with 1 mM H2O2 solution at a flux of 120 L/m2/h (LMH) for 1 min was determined to be the optimal mode for in-situ H2O2 cleaning, with confined H2O2 decomposition inside the membrane. The Mn-doped membrane with in-situ H2O2 cleaning demonstrated much better fouling mitigation efficiency than a pristine Al2O3 ceramic membrane (pristine membrane). With in-situ H2O2 cleaning, the transmembrane pressure increase (ΔTMP) of the Mn-doped membrane was 22.2 kPa after 24-h filtration, which was 40.5% lower than that of the pristine membrane (37.3 kPa). The enhanced fouling mitigation was attributed to Mn doping, in the Mn-doped membrane layer, that improved the membrane surface properties and confined the catalytic oxidation of foulants by H2O2 inside the membrane. Mn3+/Mn4+ redox couples in the Mn-doped membrane catalyzed H2O2 decomposition continuously to generate reactive oxygen species (ROS) (i.e., HO• and O21), which were likely to be confined in membrane pores and efficiently degraded organic foulants.

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Section: Catalytic Activity Of Ceramic Membranes In H 2 O 2 Decompositionmentioning

confidence: 98%

In-Situ H2O2 Cleaning for Fouling Control of Manganese-Doped Ceramic Membrane through Confined Catalytic Oxidation Inside Membrane

Tang

Song

et al. 2021

Membranes

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“…In the present study, Rhodococcus sp. US demonstrates the ability to mineralise BP3 within 10 days under aerobic conditions ternatively, degradation of BP3 has been shown in water via the UV/H2O2 and UV/pe fate (UV/PS) reactions, but also using persulfate, metal ions, PbO/TiO2 and Sb2O3/T and other chemicals [29][30][31]. However, these solutions are not considered "green s tions".…”

Section: Bp3 Degradation Potential Of Rhodococcus Sp Usk10mentioning

confidence: 99%

Complete Genome Sequence and Benzophenone-3 Mineralisation Potential of Rhodococcus sp. USK10, A Bacterium Isolated from Riverbank Sediment

Martin

Krüger

Zervas

et al. 2022

Applied Microbiology

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Benzophenone-3 (BP3) is an organic UV filter whose presence in the aquatic environment has been linked to detrimental developmental impacts in aquatic organisms such as coral and fish. The genus Rhodococcus has been extensively studied and is known for possessing large genomes housing genes for biodegradation of a wide range of compounds, including aromatic carbons. Here, we present the genome sequence of Rhodococcus sp. USK10, which was isolated from Chinese riverbank sediment and is capable of utilising BP3 as the sole carbon source, resulting in full BP3 mineralisation. The genome consisted of 9,870,030 bp in 3 replicons, a G+C content of 67.2%, and 9722 coding DNA sequences (CDSs). Annotation of the genome revealed that 179 of these CDSs are involved in the metabolism of aromatic carbons. The complete genome of Rhodococcus sp. USK10 is the first complete, annotated genome sequence of a Benzophenone-3-degrading bacterium. Through radiolabelling, it is also the first bacterium proven to mineralise Benzophenone-3. Due to the widespread environmental prevalence of Benzophenone-3, coupled with its adverse impact on aquatic organisms, this characterisation provides an integral first step in better understanding the environmentally relevant degradation pathway of the commonly used UV filter. Given USK10′s ability to completely mineralise Benzophenone-3, it could prove to be a suitable candidate for bioremediation application.

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“…Most of the contaminants adding up to wastewater are toxic and on the accumulation in living organisms possess a risk to them (Ambat et al 2020;Ben Hamida et al 2018;Bessaies et al 2020;Iftekhar et al 2020a, b;Wang et al 2019) For the depletion of these contaminants including heavy metal ions, dyes, organic contaminants, etc., a variety of methods have been employed along with various types of materials spanning from natural to synthetic, waste to hybrids and renewable to engineered (Hosseini et al 2019;Zare et al 2018b;Asif et al 2016;Gao et al 2017;Iftekhar et al 2017aIftekhar et al , 2018b. In recent decades, the paradigm has shifted toward the application of nanomaterials from bulk, causing the huge progressions of nanotechnology in creating novel nanomaterials for many industrial and environmental applications.…”

Section: Water Treatmentmentioning

confidence: 99%

Functionalization of polymers and nanomaterials for water treatment, food packaging, textile and biomedical applications: a review

et al. 2020

Self Cite

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The inert nature of most commercial polymers and nanomaterials results in limitations of applications in various industrial fields. This can be solved by surface modifications to improve physicochemical and biological properties, such as adhesion, printability, wetting and biocompatibility. Polymer functionalization allows to graft specific moieties and conjugate molecules that improve material performances. In the last decades, several approaches have been designed in the industry and academia to graft functional groups on surfaces. Here, we review surface decoration of polymers and nanomaterials, with focus on major industrial applications in the medical field, textile industry, water treatment and food packaging. We discuss the advantages and challenges of polymer functionalization. More knowledge is needed on the biology behind cell–polymer interactions, nanosafety and manufacturing at the industrial scale.

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Investigation of textural properties and photocatalytic activity of PbO/TiO2 and Sb2O3/TiO2 towards the photocatalytic degradation Benzophenone-3 UV filter

Cited by 41 publications

References 51 publications

In-Situ H2O2 Cleaning for Fouling Control of Manganese-Doped Ceramic Membrane through Confined Catalytic Oxidation Inside Membrane

In-Situ H2O2 Cleaning for Fouling Control of Manganese-Doped Ceramic Membrane through Confined Catalytic Oxidation Inside Membrane

Complete Genome Sequence and Benzophenone-3 Mineralisation Potential of Rhodococcus sp. USK10, A Bacterium Isolated from Riverbank Sediment

Functionalization of polymers and nanomaterials for water treatment, food packaging, textile and biomedical applications: a review

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