Results 121 to 130 of about 104,175 (308)

Fractional kinetics of photocatalytic degradation [PDF]

Journal of Advanced Dielectrics, 2018
In this paper, photocatalytic degradation processes of different materials are fitted to the first-order kinetic model, second-order kinetic model and fractional first-order kinetic model. Deterministic coefficients are calculated for the evaluation of the validity of these models.
openaire   +2 more sources

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Efficient Degradation of Methylene Blue in Industrial Wastewater and High Cycling Stability of Nano ZnO

Molecules
Photocatalytic degradation research has attracted significant attention in the wake of the increasingly severe global challenge of water pollution. In this study, nano-ZnO was synthesized through a straightforward method using zinc acetate anhydrous as ...
Ping Liang, Weiye Yang, Hongyan Peng, Shihua Zhao   +3 more
doaj   +1 more source

Investigating the effect of artists’ paint formulation on degradation rates of TiO2-based oil paints

Heritage Science, 2018
This study reports on the effect of artists’ paint formulation on degradation rates of TiO2-based oil paints. Titanium white oil paint exists in a multitude of different recipes, and the effect of the formulation on photocatalytic binder degradation ...
B. A. van Driel, K. J. van den Berg, M. Smout, N. Dekker, P. J. Kooyman, J. Dik   +5 more
doaj   +1 more source

Influence of the sodium/proton replacement on the structural, morphological and photocatalytic properties of titanate nanotubes

, 2012
Titanate nanotubes (TNT) with different sodium contents have been synthesised using a hydrothermal approach and a swift and highly controllable post-washing processes.
A.J. Silvestre, Bavykin, Bavykin, Bavykin, Bavykin, Bavykin, Chatterjee, Dukkancı, Fujishima, Gao, Iyi, Kasuga, Kim, Kortuem, Li, M.C. Neves, M.R. Nunes, Miyamoto, Miyauchi, Morgado, Morgado, Neves, Nunes, O.C. Monteiro, Ou, Ou, Papa, V. Bem, Wong, Xiao, Ylhäinen, Zhang   +31 more
core   +1 more source

Single‐Atom Pt Anchoring on Self‐Doped ZrO2@G‐C3N4 Nanostructure Enables Efficient Photocatalytic Seawater Hydrogen Evolution

Advanced Science, EarlyView.
Grain‐like Zr3+‐ZrO2 and Pt single atoms are integrated into an S‐scheme Zr3+‐ZrO2@g‐C3N4 heterostructure to enable efficient visible‐light‐driven seawater hydrogen production. The combined effect of Pt single‐atom sites and the S‐scheme charge‐transfer pathway accelerates carrier separation, preserves strong redox ability, and markedly enhances ...
Hezheng Sun, Yifan Guo, Xin Yu, Yajie Tian, Feng Gao, Bin Wang, Yanting Tang, Dani S. Assi, Vellaisamy A. L. Roy   +8 more
wiley   +1 more source

Photocatalytic Removal of Formaldehyde from Air Using Titanium Oxide-Reduced Graphene Composite

سلامت و محیط, 2016
Background and Objective: Formaldehyde is a toxic volatile organic compound, which its removal from polluted air is essential. One of the techniques available for removing such compounds is photocatalytic degradation.
N Rastkari, F Izadpanah
doaj  

Synthesis of sub-5 nm Co-doped SnO$_2$ nanoparticles and their structural, microstructural, optical and photocatalytic properties

, 2013
A swift chemical route to synthesize Co-doped SnO$_2$ nanopowders is described. Pure and highly stable Sn$_{1-x}$Co$_x$O$_{2-\delta}$ (0 $\le$ x $\le$ 0.15) crystalline nanoparticles were synthesized, with mean grain sizes < 5 nm and the dopant element ...
Cabrita, J., Dalui, S., Entradas, T., Monteiro, O. C., Nunes, M. R., Silvestre, A. J.   +5 more
core   +1 more source

Polar Lattice‐Distorted Motifs Enable Synergy of Local Polarization/Dipole Fields for Concurrent Glyphosate Wastewater Remediation and CO Evolution

Advanced Science, EarlyView.
Photocatalytic treatment of glyphosate herbicide in agricultural wastewater is achieved through the cooperative effect of the local polarization field and dipole field mediated by lattice‐distorted carbon nitride. Glyphosate is completely degraded via selective C─P bond cleavage with a CO evolution rate of 1166 µmol g−1 h−1.
Daoping Chen, Huan Liu, Tengyu Liu, Jie Li, Qizhi Luo, Yan Zhang, Shengkun Li, Hu Li   +7 more
wiley   +1 more source

Synergistic Sunlight‐Activated Photodynamic and Near‐Infrared‐Induced Mild Photothermal Therapy for Infected Wound Healing Using Functionalized Nano‐Bi2WO6 Composites

Advanced Science, EarlyView.
This work proposes a multifunctional Bi2WO6:Yb,Er@CuS@CS nanocomposite that integrates photodynamic therapy (PDT), near‐infrared‐triggered photothermal therapy (PTT), and Cu2+ release for infected wound repair. The nanocomposite demonstrates enhanced antibacterial efficacy via combined PDT, PTT, and Cu2+ release, effective immunomodulatory by mild ...
Yihao Sun, Liangrui He, Zhijun Shen, Yuxin Zhang, Yizhang Tang, Xujiang Yu, Jisi Zheng, Moran Huang, Wanwan Li, Lei Wang   +9 more
wiley   +1 more source