Solar light induced rhodamine B degradation assisted by TiO2–Zn–Al LDH based photocatalysts

Hadnadjev-Kostic, Milica; Vulic, Tatjana; Marinković‐Nedučin, R.

doi:10.1016/j.apt.2014.05.015

Cited by 54 publications

(24 citation statements)

References 68 publications

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“…Among different photocatalysts (TiO 2 , ZnO, Fe 2 O 3 , CdS, ZnS), TiO 2 has received special attention due to the stability of its chemical structure, biocompatibility, physical, optical, and electrical properties [1][2][3][4][5]. TiO 2 can exist in three crystallographic forms: anatase, rutile and brookite.…”

Section: Introductionmentioning

confidence: 99%

Structure–activity relationship of nanosized porous PEG-modified TiO2 powders in degradation of organic pollutants

Lončarević

Dostanić

Radonjić

et al. 2015

Advanced Powder Technology

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Section: Introductionmentioning

confidence: 99%

Structure–activity relationship of nanosized porous PEG-modified TiO2 powders in degradation of organic pollutants

Lončarević

Dostanić

Radonjić

et al. 2015

Advanced Powder Technology

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“…This technique includes the planning of two arrangements, the primary comprising the required metallic cations for example salts (ordinarily of nitrate or chloride) disintegrated the arrangement in their needed stoichiometric proportion. The other arrangement is an acidic arrangement at pH of range 4-5 or more noteworthy [5]. These metal cations will co-accelerate then the arrangement achieves super immersion.…”

Section: Preparation Of Layered Double Hydroxides (Ldhs)mentioning

confidence: 99%

“…They are hard to eliminate from various water treatment processes and be able to disposed through rivers and sewers easily. They might also endure degradation to produce extremely carcinogenic and toxic substances [5,32] .That's why there is an urgent need to develop an economic and efficient treatment method which are adept of deals through huge amount of polluted waters including significant amount of organic dyes. So many techniques were described for the elimination of toxic dyes from polluted water, comprising sedimentation, flocculation, coagulation, adsorption, photodegradation, etc.…”

Section: Effect Of Ldh On the Photocatalytic Activitymentioning

confidence: 99%

Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

George

Saravanakumar

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The layered double hydroxides (LDH) which are anionic clay substances comprising of stacked cationic layers and interlayer anions. The cationic sheets contain octahedral structure consisting the divalent and trivalent ions in the center and hydroxyl bunches in the corners, gathered by three bonding with the neighbouring octahedra on every side of the layer. The ratio between the quantity of cations and OH − ions is 2:1, so a positive charge shows up on the layer because of the presence of trivalent cations. The interlayer space gives the compensation anions and water molecules, assuring a balanced out layered structure. The LDH materials were successfully synthesised from magnesium, aluminium, zinc and chromium chloride salts utilizing the co-precipitation technique. A Zn-Al LDH was researched as a potential sorbent material. This article reviews the recent advances in the preparation and intercalation of layered double hydroxides and its application in the fabrication of Dye Sensitized Solar Cell (DSSC).

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“…LDHs have recently been studied as photocatalysts and supports for photocatalysts [13][14][15]. Controlled thermal decomposition (calcination) of LDHs leads to collapse of layered structure and formation of mixed oxides M 2+ (M 3+ )O [12,16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Combined ZnO-TiO 2 photocatalysts have been described in the literature [15,[22][23][24][25] but no mention has been made to date of photocatalysts synthesized with ZnO obtained by calcination of double hydroxides layer by calcining the double ternary layer (Mg, Zn and Al) impregnated with TiO 2 nanoparticles (TiO 2 /MgZnAl). ZnO formed by calcination of TiO 2 /MgZnAl composite may interact synergistically with TiO 2 leading to more efficient photodegradation of organic compounds.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photocatalytic activity of TiO2-impregnated with MgZnAl mixed oxides obtained from layered double hydroxides for phenol degradation

Almeida

Bellato

Mounteer

et al. 2015

Applied Surface Science

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Highlight► The catalysts composite TiO 2 /MgZnAl-5, was more efficient than TiO 2 P25.► The effects of different molar ratios zinc on the photocatalysts were investigated.► Synergistic effect between constituents of TiO 2 /MgZnAl-5 increases the photocatalysis.► TiO 2 /MgZnAl-5 exhibited the adsorption of light displacing the greater wavelength.► The catalyst composite TiO 2 /MgZnAl-5 can be reused for five consecutive cycles. AbstractPage 2 of 34 A c c e p t e d M a n u s c r i p t 2 A series of TiO 2 /MgZnAl photocatalysts, were successfully synthesized from ternary (Mg, Zn and Al) layered double hydroxides impregnated with TiO 2 nanoparticles by the co-precipitation method at variable pH with different Zn 2+ /Mg 2+ molar ratios . The composite photocatalysts were calcined at 500 °C resulting in the incorporation of oxide zinc, in the calcined MgZnAl LDH structure. Synergistic effect between ZnO and TiO 2 lead to significant enhancement of TiO 2 /MgZnAl photocatalytic activity. Composite photocatalysts were characterized by ICP-MS, N 2 adsorption/desorption, XRD, SEM, EDS, IR and UV-Vis DRS. Phenol in aqueous solution (50 mg/L) was used as a model compound for evoluation of UV-Vis (filter cutoff for λ > 300 nm) photocatalytic activity . The most efficient phocatalyst composite was obtained at a 5% Zn 2+ /Mg 2+ molar ratio , in the catalyst identified as TiO 2 /MgZnAl-5. This composite catalyst had high photocatalytic activity, completely destroying phenol and removing 80% of total organic carbon in solution after 360 min.The TiO 2 /MgZnAl-5 catalyst remained relatively stable, presenting a 15% decrease in phenol degradation efficiency after five consecutive photocatalytic cycles.

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Solar light induced rhodamine B degradation assisted by TiO2–Zn–Al LDH based photocatalysts

Cited by 54 publications

References 68 publications

Structure–activity relationship of nanosized porous PEG-modified TiO2 powders in degradation of organic pollutants

Structure–activity relationship of nanosized porous PEG-modified TiO2 powders in degradation of organic pollutants

Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

Enhanced photocatalytic activity of TiO2-impregnated with MgZnAl mixed oxides obtained from layered double hydroxides for phenol degradation

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