Results 41 to 50 of about 88,628 (298)

Detoxification of water by semiconductor photocatalysis [PDF]

, 2004
An overview of the use of semiconductor photocatalysis for water purification is given. The basic principles of semiconductor photocatalysis are described along with the current understanding of the underlying reaction mechanism(s) and how it fits in ...
Lee, Soo-Keun, Mills, Andrew
core  

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Preparation of GO/TiO₂ composite photocatalyst and treatment of synthetic dye wastewater

Cailiao gongcheng, 2019
A series of composite photocatalysts were prepared by using graphene oxide (GO) and TiO2 hydrogel. The composite photocatalyst was characterized through SEM, XRD and Raman spectroscopy, the decolorization effect of pure TiO2 and composite photocatalyst ...
LI Dan-dan, YAO Guang-zheng, LIANG Gui-yan, RONG Xu-fa, XUE Ruo-yu, FU Zhong-tian   +5 more
doaj   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Ag3PO4-based nanocomposites and their applications in photodegradation of toxic organic dye contaminated wastewater: Review on material design to performance enhancement

Journal of Saudi Chemical Society, 2020
Silver Orthophosphate (Ag3PO4) is a promising visible light driven photocatalyst. The morphology and structure of Ag3PO4 can be controlled by variety of synthetic methods for which it becomes the most extensively studied novel photocatalyst.
Mehdi Al Kausor, Susmita Sen Gupta, Dhruba Chakrabortty   +2 more
doaj   +1 more source

Hydrothermal synthesis of nitrogen doped graphene supported cobalt ferrite (NG@CoFe2O4) as photocatalyst for the methylene blue dye degradation [PDF]

Nanochemistry Research, 2018
A magnetic NG@CoFe2O4 photocatalyst was developed via a facile hydrothermal method and characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy ...
Rajinder Singh, Manesh Kumar, Lobzang Tashi, Heena Khajuria, Haq Nawaz Sheikh   +4 more
doaj   +1 more source

Nano-photocatalysts in microfluidics, energy conversion and environmental applications [PDF]

, 2015
Extensive studies have been carried out on photocatalytic materials in recent years as photocatalytic reactions offer a promising solution for solar energy conversion and environmental remediation. Currently available commercial photocatalysts still lack
Jang, Seungwook, Kim, Dong-Pyo, Parmar, Jemish, Sanchez, Samuel, Soler Turu, Lluís   +4 more
core   +3 more sources

Visualization of charge carriers in photocatalysts

National Science Review, 2023
Surface photovoltage techniques combined with time-resolved spectroscopy methods provide an effective way to visualize the charge transfer dynamics in photocatalytic reactions.
Wu, S., Antonietti, M. ; https://orcid.org/0000-0001-8411-2883, Yang, X.   +2 more
openaire   +3 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Green synthesis of titanium dioxide photocatalyst using Lactobacillus bulgaricus for processing palm oil mill effluent [PDF]

Global Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: To improve photocatalytic degradation perfomance, photocatalyst particles with a larger surface area preferred. The effectiveness of titanium dioxide as a photocatalyst depends on the synthesis method used.
L. Agustina, M. Romli, P. Suryadarma, S. Suprihatin   +3 more
doaj   +1 more source