Enhanced Photocatalytic Performance toward CO2 Hydrogenation over Nanosized TiO2-Loaded Pd under UV Irradiation

2017 ◽  
Vol 121 (5) ◽  
pp. 2923-2932 ◽  
Author(s):  
Naixu Li ◽  
Ming Liu ◽  
Bin Yang ◽  
Weixin Shu ◽  
Quanhao Shen ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Photocatalytic Performance ◽  
Co2 Hydrogenation ◽  
Nanosized Tio2

scholarly journals Synthesis, Characterization, and Photocatalytic Evaluation of Manganese (III) Phthalocyanine Sensitized ZnWO4 (ZnWO4MnPc) for Bisphenol A Degradation under UV Irradiation

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2139 ◽  
Author(s):  
Chukwuka Bethel Anucha ◽  
Ilknur Altin ◽  
Zekeriya Biyiklioglu ◽  
Emin Bacaksiz ◽  
Ismail Polat ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Uv Irradiation ◽  
Photoelectron Spectroscopy ◽  
Photocatalytic Performance ◽  
Diffuse Reflectance Spectroscopy ◽  
Degradation Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Visible ◽  
Adsorption Desorption

ZnWO4MnPc was synthesized via a hydrothermal autoclave method with 1 wt.% manganese (iii) phthalocyanine content. The material was characterized for its structural and morphological features via X-ray diffraction (XRD) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, transmission emission microscopy (TEM), scanning electron microscopy-Energy dispersive X-ray spectroscopy (SEM-EDX), N2 adsorption–desorption at 77K, X-ray photoelectron spectroscopy (XPS), and UV-visible/diffuse reflectance spectroscopy(UV-vis/DRS). ZnWO4MnPc photocatalytic performance was tested on the degradation of bisphenol A (BPA). The ZnWO4MnPc material removed 60% of BPA after 4 h of 365 nm UV irradiation. Degradation process improved significantly to about 80% removal in the presence of added 5 mM H2O2 after 4 h irradiation. Almost 100% removal was achieved after 30 min under 450 nm visible light irradiation in the presence of same concentration of H2O2. The effect of ions and humic acid (HA) towards BPA removal was also investigated.

Photocatalytic and Luminescent Sensing Properties of Two New 1D Zn(II)-Based Coordination Polymers

2020 ◽  
Vol 20 (9) ◽  
pp. 5928-5937
Author(s):  
Guang-Li Wang ◽  
Rui Wang ◽  
Jun Wang ◽  
Xin-Yu Ling ◽  
Lu Lu ◽  
...  
Keyword(s):  
Lower Limit ◽  
Uv Irradiation ◽  
Coordination Polymers ◽  
Photocatalytic Performance ◽  
Limit Of Detection ◽  
Methyl Violet ◽  
Nitroaromatic Compounds ◽  
Sensing Properties ◽  
Luminescent Sensors ◽  
Luminescent Sensing

Two new d10-configuration based Zn(II) coordination polymers with formula [Zn2(L)2(2,2′-bipy)2]n (1) and [Zn2(L)2(4,4′-bipy)]n (2) (H2L = 4,4′-{[1,2-phenylenebis-(methylene)]bis(oxy)}dibenzoic acid, 2,2′-bipy= 2,2′-bipyridine and 4,4′-bipy= 4,4′-bipyridine) have been synthesized and characterized. Both the compounds had been used as possible luminescent sensors for detecting nitroaromatic compounds (NACs) and as photocatalysts to photodegrade methyl violet (MV) under UV irradiation. The sensing experiments indicated that 2 displayed selective sensing for m-nitrophenol (MNP) with lower limit of detection (LOD) of 1.14 ppm while photocatalytic experiments indicated that 1 displayed better photocatalytic performance than 2 in photodegrading MV.

Mesoporous Ag/TiO2nanocomposites with greatly enhanced photocatalytic performance towards degradation of methyl orange under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59297-59305 ◽  
Author(s):  
Zhengfeng Zhao ◽  
Yingzi Wang ◽  
Jing Xu ◽  
Yan Wang
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Uv Irradiation ◽  
Photocatalytic Performance ◽  
Degradation Of Methyl Orange

Mesoporous Ag/TiO2nanocomposites fabricated by dealloying/calcination show superior photocatalytic performance under visible light as well as UV irradiation.

Sonochemical incorporation of nanosized TiO2 inside mesoporous silica with high photocatalytic performance

2009 ◽  
Vol 126 (1-2) ◽  
pp. 20-25 ◽  
Author(s):  
Shenmin Zhu ◽  
Di Zhang ◽  
Xingchen Zhang ◽  
Le Zhang ◽  
Xiongwei Ma ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Photocatalytic Performance ◽  
Nanosized Tio2

scholarly journals Enhanced Photocatalytic Performance of NiO-Decorated ZnO Nanowhiskers for Methylene Blue Degradation

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
I. Abdul Rahman ◽  
M. T. M. Ayob ◽  
S. Radiman
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Nio Nanoparticles ◽  
Methylene Blue Degradation ◽  
Maximal Peak ◽  
P Type

ZnO nanowhiskers were used for photodecomposition of methylene blue in aqueous solution under UV irradiation. The rate of methylene blue degradation increased linearly with time of UV irradiation. 54% of degradation rate was observed when the ZnO nanowhiskers were used as photocatalysts for methylene blue degradation for 80 min under UV irradiation. The decoration of p-type NiO nanoparticles on n-type ZnO nanowhiskers significantly enhanced photocatalytic activity and reached 72% degradation rate of methylene blue by using the same method. NiO-decorated ZnO was recycled for second test and shows 66% degradation from maximal peak of methylene blue within the same period. The increment of photocatalytic activity of NiO-decorated ZnO nanowhiskers was explained by the extension of the electron depletion layer due to the formation of nanoscale p-n junctions between p-type NiO and n-type ZnO. Hence, these products provide new alternative proficient photocatalysts for wastewater treatment.

Enhanced photocatalytic performance of Fe-doped SnO2 nanoarchitectures under UV irradiation: synthesis and activity

2013 ◽  
Vol 48 (18) ◽  
pp. 6404-6409 ◽  
Author(s):  
Marauo Davis ◽  
Fernando Hung-Low ◽  
Walid M. Hikal ◽  
Louisa J. Hope-Weeks
Keyword(s):  
Uv Irradiation ◽  
Photocatalytic Performance

scholarly journals Enhanced photocatalytic performance of novel electrospun BN/TiO2 composite nanofibers

2017 ◽  
Vol 41 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Maryline Nasr ◽  
Roman Viter ◽  
Cynthia Eid ◽  
Roland Habchi ◽  
Philippe Miele ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Composite Nanofibers ◽  
Photocatalytic Performance

We report the elaboration of novel BN/TiO2 composite nanofibers with different amounts of BN sheets and their photocatalytic activity under UV irradiation.

Enhanced Photocatalytic Performance of Oriented ZnWO4 Nanorods via Graphene Hybridization

2014 ◽  
Vol 602-603 ◽  
pp. 970-974
Author(s):  
Feng Zhou ◽  
Su Zhan
Keyword(s):  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Electron Hole ◽  
Enhancement Mechanism

The hybridization of graphene with oriented ZnWO4photocatalysts effectively enhanced the photocatalytic activity. The enhancement in photocatalytic performance was relied on the amount of graphene and the optimal hybridized amount of graphene was about 2 wt%. The photocatalytic activity was increased by about 3 times after ZnWO4was hybridized with graphene under UV irradiation. The enhancement mechanism of the photocatalytic activity is attributed to the higher separation efficiency and the inhibition of recombination of photoinduced electron-hole pairs.

How to make an efficient gas-phase heterogeneous CO2 hydrogenation photocatalyst

2020 ◽  
Vol 13 (9) ◽  
pp. 3054-3063 ◽  
Author(s):  
Tingjiang Yan ◽  
Na Li ◽  
Linlin Wang ◽  
Qin Liu ◽  
Abdinoor Jelle ◽  
...  
Keyword(s):  
Gas Phase ◽  
Photocatalytic Performance ◽  
Co2 Hydrogenation ◽  
Cubic Phases

rh/c-In2O3−x(OH)y with precisely adjustable fractions of rhombohedral and cubic phases were synthesized and enabled boosting photocatalytic performance toward CO2 hydrogenation.

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