Catalytic degradation of gaseous benzene by using TiO2/goethite immobilized on palygorskite: Preparation, characterization and mechanism

Ma, Jianzhong; Zhu, Chengzhu; Li, Haibo; Huang, Li; Chen, Tianhu; Chen, Dong

doi:10.1016/j.solidstatesciences.2015.09.007

Cited by 29 publications

(6 citation statements)

References 46 publications

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“…However, the elevated initial E. coli concentrations in NB and 0.85% NaCl lowered the photocatalytic bacterial inactivation performance, due to the restricted active photocatalytic surface site [41][42][43] …”

Section: Photocatalytic Bacterialmentioning

confidence: 99%

E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

Rojviroon

Sirivithayapakorn

2018

International Journal of Photoenergy

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This experimental research comparatively investigates the Escherichia coli (E. coli) bacterial inactivation of the TiO 2 photocatalytic thin films fabricated by the sol-gel dip-coating (SG) and low-temperature spray-coating (SP) techniques, with low-intensity (12 μW·cm . Moreover, the essential physical characteristics of the SG-TiO 2 and SP-TiO 2 photocatalytic thin films were determined prior to the experimental bacterial inactivation. The findings showed that both photocatalytic thin films possessed the ideal physical characteristics, especially the SP-TiO 2 thin film. In addition, the viable cell counts, the cell morphology, and the bioluminescence-based adenosine triphosphate (ATP) indicated that both SG-TiO 2 and SP-TiO 2 thin films under UVA could effectively inhibit the proliferation of the E. coli cells in both NB and 0.85% NaCl.

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Section: Photocatalytic Bacterialmentioning

confidence: 99%

E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

Rojviroon

Sirivithayapakorn

2018

International Journal of Photoenergy

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“…Most AOPs occur at room temperature, using energy to produce highly reactive intermediates with high oxidation or reduction potential. The process can attack and destroy hazardous compounds [13,14] and generate free radicals such as hydroxyl (OH), which is a very effective oxidizing agent. Both research and application studies on AOPs, especially heterogeneous photocatalysis, have increased every year and are becoming of fundamental importance in environmental chemistry [15,16].…”

Section: Introductionmentioning

confidence: 99%

Oxide-Clay Mineral as Photoactive Material for Dye Discoloration

Miranda

Viana²,

Honorio³

et al. 2020

Minerals

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Titanium and zirconium oxides (TiO2 and ZrO2, respectively) were obtained from alkoxides hydrolyses, and then deposited into palygorskite clay mineral (Pal) to obtain new materials for photocatalytic applications. The obtained materials were characterized by structural, morphological, and textural techniques. X-ray diffraction (XRD) results confirmed the characteristic peaks of oxides and clay transmission electron microscopy (TEM) and scanning electron microscopy (SEM) images of the modified palygorskite with both oxides showed that the clay was successfully modified by the proposed method. The increase in the specific surface area of the clay occurred when TiO2 and ZrO2 were deposited on the surface. The photocatalytic activity of these materials was investigated using the Remazol Blue anion dye under UV light. The evaluated systems presented high photocatalytic activity, reaching approximately 98% of dye discoloration under light. Thus, TiO2–Pal and ZrO2–TiO2–Pal are promising clay mineral-based photocatalysts.

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“…9 Moreover, it has recently been reported that goethite containing semiconductor materials enhance the photocatalityc activity efficiency of photocatalysts. 10 For these applications, iron oxide thin films have been obtained by different techniques: chemical vapor deposition (CVD), 11 sputtering, 12 plasma-enhanced chemical vapor deposition, 13 reactive sputter deposition, 14 dc reactive magnetron sputtering, 15 metallorganic chemical vapor deposition, 16 spray pyrolysis 17 and electrodeposition. 18,19 Among them, electrodeposition is presented as a soft-solution processing technique of thin-film preparation which enables to control the composition and morphology of deposited materials by the adjustment of the electrochemical parameters.…”

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confidence: 99%

Surface Morphological Control of Nanostructured Single-Phase Fe₃O₄, α-FeOOH and γ-FeOOH Electrodeposited Thin Films

Bijani¹,

Ochoa-Martínez²,

Dalchiele³

et al. 2016

J. Electrochem. Soc.

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Nanostructured single-phase magnetite, goethite, and lepidocrocite thin films with variable surface morphology and degree of cristallinity were anodically electrodeposited in a potentiostatic mode onto titanium substrates under different deposition conditions. Dependence of phase composition, degree of cristallinity, preferred crystallographic orientation and surface morphology of these films on applied potential, electrodeposition electrolytic bath temperature and pH was conducted. X-ray diffraction analysis confirmed that the applied potential have a crucial effect on the phase composition of these films so that on degree crystallinity and prefererred crystallographic orientations. Scanning electron microscopy micrograph images indicated that electrolytic bath pH and temperature play an important role on the surface morphology and on the grain size of the deposited materials.Iron oxides and oxyhydroxides are abundant in nature and are the interest subject within the area of many applied sciences such as geochemistry, mineralogy, corrosion science, soil science, medicine, biology, metallurgy, and environmental protection. 1,2 In addition to the mentioned interest of iron oxides as a bulk material, the formation of thin films of these materials is being investigated for their remarkable properties from a scientific and technological point of view. 3,4 For instance, magnetite thin films have attracted great attention for spintronic applications, 5 hematite thin films have been extensively studied as photoelectrodes for solar driven water splitting 6-8 and there have been encouraging results reporting on the utilization of goethite and lepidrocrocite thin films as electrodes for rechargeable lithium-ion batteries and supercapacitors. 9 Moreover, it has recently been reported that goethite containing semiconductor materials enhance the photocatalityc activity efficiency of photocatalysts. 10 For these applications, iron oxide thin films have been obtained by different techniques: chemical vapor deposition (CVD), 11 sputtering, 12 plasma-enhanced chemical vapor deposition, 13 reactive sputter deposition, 14 dc reactive magnetron sputtering, 15 metallorganic chemical vapor deposition, 16 spray pyrolysis 17 and electrodeposition. 18,19 Among them, electrodeposition is presented as a soft-solution processing technique of thin-film preparation which enables to control the composition and morphology of deposited materials by the adjustment of the electrochemical parameters. 20-23 This ability to tune the shape of inorganic crystals is of extraordinary importance because their electronic structure, bonding, surface energy and chemical reactivities are directly related to their surface morphology. 24 In this work we are interested into the preparation of nanostructured thin films of magnetite (Fe 3 O 4 ), goethite (α-FeOOH) and lepidocrocite (γ-FeOOH) by electrochemical deposition. The anodic deposition from ferrous ions in aqueous solution was studied in the past in relation to the corrosion of iron. 25 Synthesis generally...

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Catalytic degradation of gaseous benzene by using TiO2/goethite immobilized on palygorskite: Preparation, characterization and mechanism

Cited by 29 publications

References 46 publications

E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

Oxide-Clay Mineral as Photoactive Material for Dye Discoloration

Surface Morphological Control of Nanostructured Single-Phase Fe₃O₄, α-FeOOH and γ-FeOOH Electrodeposited Thin Films

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Catalytic degradation of gaseous benzene by using TiO2/goethite immobilized on palygorskite: Preparation, characterization and mechanism

Cited by 29 publications

References 46 publications

E. coli Bacteriostatic Action Using TiO2 Photocatalytic Reactions

E. coli Bacteriostatic Action Using TiO2 Photocatalytic Reactions

Oxide-Clay Mineral as Photoactive Material for Dye Discoloration

Surface Morphological Control of Nanostructured Single-Phase Fe3O4, α-FeOOH and γ-FeOOH Electrodeposited Thin Films

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Product

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E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

E. coli Bacteriostatic Action Using TiO₂ Photocatalytic Reactions

Surface Morphological Control of Nanostructured Single-Phase Fe₃O₄, α-FeOOH and γ-FeOOH Electrodeposited Thin Films