Photoluminescence enhancement induced by nanoparticles from La2O3 and CeO2 doped diamond-like carbon films

Zhang, Zhenyu; Zhou, Hongxiu; Guo, Dongming; Wu, Dongjiang; Tong, Yu

doi:10.1016/j.jallcom.2008.08.050

Cited by 22 publications

(6 citation statements)

References 50 publications

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“…The spectra confirm the sample are composed of La, O and Si, and reveals the reference of the adventitious C 1s peak at about 284.3 eV. The peak located at about 835 eV are in good agreement with the spinorbit of La 3d 5/2 [24,25].…”

Section: Resultssupporting

confidence: 74%

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Guo¹,

Lai²,

Zhao³

et al. 2009

Journal of Alloys and Compounds

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Section: Resultssupporting

confidence: 74%

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Guo¹,

Lai²,

Zhao³

et al. 2009

Journal of Alloys and Compounds

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“…3d 3/2 and 3d 5/2 peaks correspondingly appear at about 850.9 and 834.3 eV, and the interval between two peaks is 16.6 eV as shown in Fig. 5c for all cases, which do not agree well with the characteristics of the pure La 2 O 3 reference spectrum (16.8 eV) [24]. This result shows that formation of solid solution between La 2 O 3 and ZrO 2 (or CeO 2 ) occurs during thermal cycling.…”

Section: Examinations Of Electronic State and Chemical Environmentmentioning

confidence: 76%

Composition, structure evolution and cyclic oxidation behavior of La2(Zr0.7Ce0.3)2O7 EB-PVD TBCs

Zhao

et al. 2010

Journal of Alloys and Compounds

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“…No signi cant reduction could be observed even after 60 min. [39], and scavenging of dissolved oxygen [40]. After the t o , the %RE of AgNPs increased signi cantly before reaching a plateau due to the equilibrium condition at a certain reaction time.…”

Section: Catalytic Study Of Sse Driven Agnpsmentioning

confidence: 99%

Shortleaf Spikesedge-Driven Silver Nanoparticles for The Reduction of Methylene Blue Dye

Isa¹,

Osman²,

Hamid³

et al. 2021

Preprint

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The textile industry is a heavy producer of wastewater, which may result in the discharge of toxic dyes into the environment. Methylene blue (MB) is an example of the most used dye in the textile industry. It is difficult to degrade MB under normal conditions due to its highly stable molecules. Therefore, a catalyst route is desired in MB reduction. The catalyst chosen in this work was silver nanoparticles (AgNPs) synthesised by a biological method utilising shortleaf spikesedge extract (SSE) as a reducing agent. The formations of SSE driven AgNPs were monitored using visual observation (colour), ultraviolet-visible spectroscopy (UV-vis), and transmission electron microscopy (TEM). The different process variables (concentration of AgNO3, concentration of SSE, reaction time, temperature and pH) upon synthesis of SSE driven AgNPs were evaluated based on the absorbance of surface plasmon resonance (SPR) band. The TEM image showed that SSE driven AgNPs are highly dispersed with a quasi-spherical shape and an average particle size of approximately 17.64 nm. For the catalytic study, the reduction of MB was evaluated using two systems. A detailed batch study of the removal efficiency (%RE) and kinetics was done at ambient temperature, various MB initial concentrations, and reaction time. The batch study for System 2 clearly showed that SSE driven AgNPs exhibited 100% reduction of MB at 30–100 mg/L initial concentration (sample coding of MB30, MB50, MB70 and MB100) between 1.5 and 5.0 min reaction time. The kinetic data best fitted a pseudo-first-order kinetic model with the highest reaction rate of 2.5715 min-1. The reduction of MB occurs via the electron relay effect. These findings demonstrate that the SSE driven AgNPs are a promising candidate with potential influence on coloured wastewater.

show abstract

Photoluminescence enhancement induced by nanoparticles from La2O3 and CeO2 doped diamond-like carbon films

Cited by 22 publications

References 50 publications

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Composition, structure evolution and cyclic oxidation behavior of La2(Zr0.7Ce0.3)2O7 EB-PVD TBCs

Shortleaf Spikesedge-Driven Silver Nanoparticles for The Reduction of Methylene Blue Dye

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