Photocatalytic decomposition of benzene enhanced by the heating effect of light: improving solar energy utilization with photothermocatalytic synergy

Fang, Jialin; Chen, Zhangsen; Zheng, Qun; Li, Danzhen

doi:10.1039/c7cy00532f

Cited by 25 publications

(22 citation statements)

References 42 publications

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“…In the oxidation of benzene catalyzed by Pt/BiVO 4 /TiO 2 composite samples, ac lear thermo-photocatalytic synergistic effect was detected. [42] The composite sample with aP tl oading of 1.0 wt %p resentedt he best activity for the oxidation of benzene, compared with others containing loadingso f0 .2, 0.5, and 2.0 wt %. [42] CeMn x O y /TiO 2 nanocomposite and, as references,M nO x /TiO 2 ,C eO 2 /TiO 2 ,a nd TiO 2 were also studied under thermo-photoirradiation conditions for oxidation.…”

Section: Air Treatmentmentioning

confidence: 90%

“…[42] The composite sample with aP tl oading of 1.0 wt %p resentedt he best activity for the oxidation of benzene, compared with others containing loadingso f0 .2, 0.5, and 2.0 wt %. [42] CeMn x O y /TiO 2 nanocomposite and, as references,M nO x /TiO 2 ,C eO 2 /TiO 2 ,a nd TiO 2 were also studied under thermo-photoirradiation conditions for oxidation. [43] The highly efficient thermo-photocatalytic activity of CeMn x O y /TiO 2 nanocomposite wasa ssociated with the efficient transformation of the absorbed solar energy to thermal energy.I nf act, all thermale nergy needed was generated by the light source.…”

Section: Air Treatmentmentioning

confidence: 90%

“…Reprinted with permission from Ref. [42] The composite sample with aP tl oading of 1.0 wt %p resentedt he best activity for the oxidation of benzene, compared with others containing loadingso f0 .2, 0.5, and 2.0 wt %. ChemSusChem 2019ChemSusChem , 12,2098ChemSusChem -2116 www.chemsuschem.org 2019 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim precipitation method on ap reviously prepared Ce-Mn oxide showedamarked synergistic effect over ar ange of temperatures from 120 to 180 8Ca nd al ight source at aw avelength of 253.7 nm.…”

Section: Air Treatmentmentioning

confidence: 99%

“…[40].C opyright 2018 Royal SocietyofC hemistry. [42] CeMn x O y /TiO 2 nanocomposite and, as references,M nO x /TiO 2 ,C eO 2 /TiO 2 ,a nd TiO 2 were also studied under thermo-photoirradiation conditions for oxidation. [41] 1000 mg m À3 of benzene wered egraded by thermo-photocatalysis, with 100 %c onversion after 12 ha t 180 8Ca chieved under ap seudo-stationary-state condition.…”

Section: Air Treatmentmentioning

confidence: 99%

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Thermo‐Photocatalysis: Environmental and Energy Applications

et al. 2019

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Catalysis is an integral part of a majority of chemical operations focused on the generation of value‐added chemicals or fuels. Similarly, the extensive use of fossil‐derived fuels and chemicals has led to deterioration of the environment. Catalysis currently plays a key role in mitigating such effects. Thermal catalysis and photocatalysis are two well‐known catalytic approaches that were applied in both energy and environmental fields. Thermo‐photocatalysis can be understood as a synergistic effect of the two catalytic processes with key importance in the use of solar energy as thermal and light source. This Review provides an update on relevant contributions about thermo‐photocatalytic systems for environmental and energy applications. The reported activity data are compared with the conventional photocatalytic approach and the base of the photothermal effect is analyzed. Some of the systems based on the positive aspects of thermo‐ and photocatalysis could be the answer to the energy and environmental crisis when taking into account the outstanding results with regard to chemical efficiency and energy saving.

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Section: Air Treatmentmentioning

confidence: 90%

Section: Air Treatmentmentioning

confidence: 90%

Section: Air Treatmentmentioning

confidence: 99%

Section: Air Treatmentmentioning

confidence: 99%

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Thermo‐Photocatalysis: Environmental and Energy Applications

et al. 2019

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“…However, TiO 2 can decompose gaseous benzene under ultraviolet light irradiation, thus it has attracted growing attention [4][5][6][7][8]. In fact, the photodegradation of gaseous benzene by TiO 2 photocatalyst is a heterogeneous reaction occurring at a gas-solid interface, and the reaction rate is strongly affected by the environmental factors, particularly illumination intensity [9][10][11]. So the kinetic study of photocatalytic reaction is important for revealing the effect of these factors on the photocatalytic reaction rate.…”

Section: Introductionmentioning

confidence: 99%

Modification to L-H Kinetics Model and Its Application in the Investigation on Photodegradation of Gaseous Benzene by Nitrogen-Doped TiO2

et al. 2018

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In this paper, the Langmuir-Hinshelwood (L-H) model has been used to investigate the kinetics of photodegradation of gaseous benzene by nitrogen-doped TiO 2 (N-TiO 2 ) at 25 • C under visible light irradiation. Experimental results show that the photoreaction coefficient k pm increased from 3.992 × 10 −6 mol·kg −1 ·s −1 to 11.55 × 10 −6 mol·kg −1 ·s −1 along with increasing illumination intensity. However, the adsorption equilibrium constant K L decreased from 1139 to 597 m 3 ·mol −1 when the illumination intensity increased from 36.7 × 10 4 lx to 75.1 × 10 4 lx, whereas it was 2761 m 3 ·mol −1 in the absence of light. This is contrary to the fact that K L should be a constant if the temperature was fixed. This phenomenon can be attributed to the breaking of the adsorption-desorption equilibrium by photocatalytically decomposition. To compensate for the disequilibrium of the adsorption-desorption process, photoreaction coefficient k pm was introduced to the expression of K L and the compensation form was denoted as K m . K L is an indicator of the adsorption capacity of TiO 2 while K m is only an indicator of the coverage ratio of TiO 2 surface. The modified L-H model has been experimentally verified so it is expected to be used to predict the kinetics of the photocatalytic degradation of gaseous benzene.

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In Vivo Micro‐Computerized Tomography Tracking of Human Periodontal Ligament Stem Cells Labeled with Gold Nanocomplexes

Zong

Bronckaers

Velde

et al. 2021

Adv Healthcare Materials

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Gold nanocomplexes have been proposed as contrast agents for computerized tomography (CT) and cell tracking, which is especially useful in stem cell therapy. However, their potential for long-term in vivo cell detection is still unknown. This study proposes an optimized approach to labeling human periodontal ligament stem cells (hPDLSCs) with gold nanocomplexes to evaluate their detection with micro-CT after transplantation at four different rat tissues. The gold nanocomplexes of 0.05 mg mL −1 do not affect cell viability nor osteogenic differentiation capacity, but render fluorescent and radiopaque hPDLSCs. Excellent linear correlation with the number of labeled cells is shown over a wide range (r = 0.99, P < 0.01), with a detection limit of ≈1.2 × 10 3 cells/μL. In vivo, strong, and durable detection of transplanted labeled cells within 5 days at all investigated areas is seen by micro-CT and immunohistochemical assay. This approach confirms the potential of gold nanocomplexes in longitudinal in vivo cell tracking, which may facilitate their application in CT image-guided interventions commonly used in oromaxillofacial or systemic applications of stem cell therapy.

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Photocatalytic decomposition of benzene enhanced by the heating effect of light: improving solar energy utilization with photothermocatalytic synergy

Abstract: In the present paper, we propose to use the heating effect of light to enhance the solar utilization efficiency of the catalyst Pt/BiVO4/TiO2.

Cited by 25 publications

References 42 publications

Thermo‐Photocatalysis: Environmental and Energy Applications

Thermo‐Photocatalysis: Environmental and Energy Applications

Modification to L-H Kinetics Model and Its Application in the Investigation on Photodegradation of Gaseous Benzene by Nitrogen-Doped TiO2

In Vivo Micro‐Computerized Tomography Tracking of Human Periodontal Ligament Stem Cells Labeled with Gold Nanocomplexes

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