Effect of photo-corrosion of Ag2CO3 on visible light photocatalytic activity of two kinds of Ag2CO3/TiO2 prepared from different precursors

Feng, Chang; Li, Guoguo; Ren, Pinhong; Wang, Yan; Huang, Xianshun; Li, Deliang

doi:10.1016/j.apcatb.2014.04.020

Cited by 63 publications

(22 citation statements)

References 32 publications

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“…Almost all of these studies aimed to enhance the photocatalytic activity of pristine Ag 2 CO 3 , and a few of them declared that the substrates could also assist in inhibiting the photocorrosion of Ag 2 CO 3 [15,16]. Even so, in most of the Ag 2 CO 3 based photocatalyst studies, photocorrosion is still a highly common phenomenon [10,11,14,19], which also happens in the case of other silver-containing photocatalysts, such as Ag 3 PO 4 [21,22]. Thus, the improvement in photocatalytic activity and stability of pristine Ag 2 CO 3 are the two main objectives for the current Ag 2 CO 3 based photocatalyst studies.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Zhang

Chan

2015

Journal of Hazardous Materials

139

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Section: Introductionmentioning

confidence: 98%

“…[11,13,19,20]. Almost all of these studies aimed to enhance the photocatalytic activity of pristine Ag 2 CO 3 , and a few of them declared that the substrates could also assist in inhibiting the photocorrosion of Ag 2 CO 3 [15,16].…”

Section: Introductionmentioning

confidence: 99%

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Zhang

Chan

2015

Journal of Hazardous Materials

139

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“…Previously we prepared anatase TiO 2 with a large amount of intrinsic defects: single-electron-trapped oxygen vacancy (abridged as SETOV and denoted as V 0 • ) by heat-treating nanotubular titanic acid (H 2 Ti 2 O 4 (OH) 2 ; denoted as NTA) at elevated temperature [34][35][36][37][38][39][40][41]. As-obtained V 0 • self-modified TiO 2 (denoted as V 0 • -TiO 2 ) exhibits a certain degree of visible-light absorption, due to the formation of a sub-band of the SETOV within the band gap of TiO 2 [39,40] An impregnation method reported elsewhere was applied to graft Fe(III) ion onto the surface of V 0…”

Section: Introductionmentioning

confidence: 99%

Endowing single-electron-trapped oxygen vacancy self-modified titanium dioxide with visible-light photocatalytic activity by grafting Fe(III) nanocluster

Ren

Liu

et al. 2015

Applied Catalysis B: Environmental

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“…This phenomenon may explain the presence of inhibition occurred on the surface of Zn-TiO 2 catalyst. Other than that, it is believed photo-corrosion effect adsorption on the surface of catalyst during photocatalytic reaction contributed to low degradation rate [8]. Furthermore, the lower photocatalytic activity of phenol possibly can be explained by the less photo-generated electron and holes participated in reaction [9].…”

Section: Resultsmentioning

confidence: 99%

EFFECT OF CALCINATION TEMPERATURE ON ZnO/TIO2 COMPOSITE IN PHOTOCATALYTIC TREATMENT OF PHENOL UNDER VISIBLE LIGHT

Abdullah

So'aib²,

Krishnan

2017

MJAS

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Composite catalyst ZnO/TiO 2 of molar ratio 0.75% was synthesized via sol gel method. The effect of preparation method on the crystal morphology was investigated. The catalyst particles were calcinated at 500 o C,550 o C and 600 °C for 3 hours. The XRD results revealed that calcination temperature controls the crystalline phase in terms of homogeneity and surface area of catalyst produced. The particle size was found to increase with calcination temperature suggesting the effect of different calcination temperatures on catalytic activity for complete degradation of phenol. The result found that ZnO/TiO 2 catalyst calcinated at 600 o C resulted in 70% phenol degradation within five hours of irradiation time under visible light. The kinetic behavior of phenol degradation was found to fit with pseudo first order Langmuir-Hinshelwood kinetic model. Keywords: sol gel, ZnO/TiO 2 catalyst, photocatalytic degradation, visible light, kinetic Abstrak Pemangkin komposit ZnO/TiO 2 dengan 0.75% nisbah molar telah di sintesis melalui kaedah sol gel. Kesan kaedah penyediaan pada morfologi kristal itu telah di selidiki. Zarah-zarah pemangkin telah dikalsinkan pada suhu 500 o C, 550 o C dan 600 o C selama 3 jam. Keputusan XRD menunjukkan suhu pengkalsinan mengawal fasa kristal dari segi kesamaan dan kawasan permukaan pemangkin dihasilkan. Saiz zarah didapati meningkat sejajar dengan peningkatan suhu pengkalsinan mencadangkan kesan suhu pengkalsinan yang berbeza pada aktiviti pemangkin untuk penyingkiran penuh fenol. Keputusan mendapati pemangkin ZnO/TiO 2 yang dikalsinkan pada 600 o C boleh menyebabkan 70% fenol terdegradasi bagi tempoh lima jam masa penyinaran di bawah cahaya nampak. Kelakuan kinetik degradasi fenol didapati sesuai dengan pseudo peringkat pertama model kinetik Langmuir -Hinshelwood.

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Effect of photo-corrosion of Ag2CO3 on visible light photocatalytic activity of two kinds of Ag2CO3/TiO2 prepared from different precursors

Cited by 63 publications

References 32 publications

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Endowing single-electron-trapped oxygen vacancy self-modified titanium dioxide with visible-light photocatalytic activity by grafting Fe(III) nanocluster

EFFECT OF CALCINATION TEMPERATURE ON ZnO/TIO2 COMPOSITE IN PHOTOCATALYTIC TREATMENT OF PHENOL UNDER VISIBLE LIGHT

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