Photocatalytic hydrogen evolution with simultaneous photocatalytic reforming of biomass by Er3+:YAlO3/Pt–TiO2 membranes under visible light driving

Ma, Can; Li, Yun; Yang, Chen; Lü, Chunxiao; Wang, Jun

doi:10.1016/j.cej.2015.03.090

Cited by 34 publications

(18 citation statements)

References 30 publications

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“…During ultrasonic irradiation, the cavitation effect also causes the sonoluminescence which can bring the lights with wide wavelength range [27,28]. However, because of the wide band gap of TiO 2 (E bg = 3.2 eV), only a small fraction of lights with short wavelength in sonoluminescence can be utilized to carry out sonocatalytic degradation of various organic pollutants [29]. So, we consider combining TiO 2 with up-conversion luminescence agent, Er 3+ :Y 3 Al 5 O 12 , which can convert (long wavelength) visible-light to (short wavelength) ultraviolet-light to expand the responsive spectrum of TiO 2 [20].…”

Section: Introductionmentioning

confidence: 99%

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

Li¹,

Wei²,

Huang³

et al. 2017

Ultrasonics Sonochemistry

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(5.0%)Er:YAlO/Pt-(TiO-TaO) powder, as a high effective sonocatalyst, was prepared using sol-gel and calcination method. Then it was characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX). In order to evaluate the sonocatalytic activity of the prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder, the sonocatalytic decomposition of ametryn was studied. In addition, some influencing factors such as different Ti/Ta molar ratios on the sonocatalytic activity of the prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder, catalyst added amount with ultrasonic irradiation time and used times on the sonocatalytic decomposition efficiency were examined by using ion chromatogram determination. The experimental results showed that the best sonocatalytic decomposition ratio of ametryn were 77.50% based on the N atom calculation and 95.00% based on the S atom calculation, respectively, when the conditions of 10.00mg/L initial concentration, 1.00g/L prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder (Ti/Ta=1.00:0.25 heat-treated at 550°C for 3.0h) added amount, 150min ultrasonic irradiation (40kHz frequency and 300W output power), 100mL total volume and 25-28°C temperature were adopted. Therefore, the (5.0%)Er:YAlO/Pt-(TiO-TaO) composite nanoparticles could be considered as an effective sonocatalyst for decomposition of ametryn in aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

Li¹,

Wei²,

Huang³

et al. 2017

Ultrasonics Sonochemistry

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“…[13b,20] Darüber hinaus kann die Lichtabsorption von TiO 2 durch Dotieren mit Heteroatomen (B/N, [21] S, [22] F [23] )o der Sensibilisierung mit Er:YAlO 3 -Partikeln zur Hochkonversion verbessert werden. [24] Pt/TiO 2 zeigt außerdem eine vergleichbare PR-Reaktivitätmit anderen Zuckern (Fructose, [12c, 17, 25] Galactose, [26] Mannose, [26a] Sorbose, [26a] Arabinose, [25] Xylose [12d, 27] ). Die Verwendung von Pt/CdZnS als Photokatalysator ermçglicht Glucosereformierung unter sichtbarem Licht mit bis zu 0.485 mmol H 2 g cat À1 h À1 , [28] während ZnS/ZnIn 2 S 4 eine geringere Aktivitätz eigt.…”

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Sonnengetriebene Wasserstofferzeugung aus Lignocellulose

Kuehnel

Reisner

2018

Angewandte Chemie

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Die photokatalytische Reformierung Lignocellulose‐haltiger Biomasse ist eine aufstrebende Methode zur Produktion von erneuerbarem H2. Dieser Prozess verbindet Photooxidation von Biomasse mit photokatalytischer Wasserstoffentwicklung bei Raumtemperatur und Atmosphärendruck. Die Umsetzung von Biomasse ist weniger energieaufwändig als Wasserspaltung und liefert dabei hochreinen H2, ohne dass sich O2 bildet. Die direkte Reformierung von unbehandelter Rohbiomasse birgt das Potenzial, weltweit lokal verfügbares Material als kostengünstige Energiequelle zu nutzen.

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“…At this moment, the prepared Er 3+ :Y3Al5O12 (0.30:1.00 Er 3+ :Y3Al5O12 and ZnS mass ratio) was also added into the above solution. Subsequently, 20…”

Section: Preparation Of Photocatalystsmentioning

confidence: 99%

“…The best way is meeting the energy demands of ZnS with wide band-gap to maintain the catalytic activity [11][12][13][14][15][16][17]. Recently, our study suggested that the combination of up-conversion luminescence agent can improve the photocatalytic hydrogen evolution efficiency of some wide band-gap (Ebg ≥ 3.00 eV or λmax ≤ 380 nm) photocatalysts [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Enhanced visible-light photocatalytic hydrogen evolution activity of Er3+:Y3Al5O12/PdS–ZnS by conduction band co-catalysts (MoO2, MoS2 and MoSe2)

Song

Wei

Yang

et al. 2016

International Journal of Hydrogen Energy

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Several conduction band co-catalysts (CBCOs), MoO2, MoS2 and MoSe2, were prepared to improve the visible-light photocatalytic hydrogen evolution activity of Er 3+ :Y3Al5O12/PdS-ZnS from water splitting, in which the PdS is a valence band co-catalyst (VBCO) used to facilitate the photo-generated hole transfer and the Er 3+ :Y3Al5O12 is an up-conversion luminescence agent from visible light to ultraviolet light used to provide the ultraviolet light satisfying the energy demands of wide band-gap ZnS photocatalyst. XRD, SEM, TEM and EDX analyses were employed to confirm the morphology, microstructure and composition of the prepared photocatalysts. UV-vis absorption and PL spectra were also determined to explore luminescence effect of the Er 3+ :Y3Al5O12. The visible-light photocatalytic hydrogen evolution activity of the prepared photocatalysts was evaluated by using Na2S and Na2SO3 as sacrificial reagents in aqueous solution under visible light irradiation. The influential factors such as contents of CBCOs (MoO2, MoS2 and MoSe2) and visible-light irradiation time on visible-light photocatalytic hydrogen evolution of Er 3+ :Y3Al5O12/PdS-ZnS-MoX2 (X = O, S and Se) were investigated in detail. Particularly, Er 3+ :Y3Al5O12/PdS-ZnS-MoSe2 with 0.30 wt% MoSe2 shows the highest

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Photocatalytic hydrogen evolution with simultaneous photocatalytic reforming of biomass by Er3+:YAlO3/Pt–TiO2 membranes under visible light driving

Cited by 34 publications

References 30 publications

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

Sonnengetriebene Wasserstofferzeugung aus Lignocellulose

Enhanced visible-light photocatalytic hydrogen evolution activity of Er3+:Y3Al5O12/PdS–ZnS by conduction band co-catalysts (MoO2, MoS2 and MoSe2)

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