Results 61 to 70 of about 1,114,422 (318)

Improvement Possibilities of Heterogeneous Photocatalysis with the Aim of In-Field Use

Hungarian Journal of Industry and Chemistry, 2017
Heterogeneous photocatalysis can be successfully applied for the degradation of organic pollutants, although the efficiency of this method is insufficient. It can be increased by modification of the catalyst with precious metals (e.g.
Fónagy Orsolya, Hegedűs Péter, Szabó-Bárdos Erzsébet, Dobrádi Annamária, Horváth Ottó   +4 more
doaj   +1 more source

Research progress in photocatalysis and electrocatalysis of two-dimensional covalent organic framework materials

Cailiao gongcheng, 2023
Two-dimensional covalent organic frameworks (2D COFs) are ideal heterogeneous catalysts, and have been widely used in photocatalysis and electrocatalysis, owing to their high specific surface area, tunable porosity, facile functionalization, highly ...
ZHAO Dongdong, WANG Bing, CHONG Yuliang, ZHAO Yunqiang, ZHANG Junjie, QUAN Wenxuan, ZHUANG Jinliang   +6 more
doaj   +1 more source

Enhanced dispersibility of graphitic carbon nitride particles in aqueous and organic media via a one-pot grafting approach [PDF]

, 2017
A facile route to synthesize hydrophilically or hydrophobically grafted graphitic carbon nitride (g-CN) is reported. For this purpose, functionalized olefinic molecules with a low polymerization tendency are utilized for grafting onto the surface to ...
Antonietti, M., Kumru, B., Schmidt, B.
core   +1 more source

Activating a Metallization Switch for Record Hydrogen Evolution in Single‐Atom Modified Polar MOF Piezocatalysts

Advanced Materials, EarlyView.
ABSTRACT Piezocatalytic hydrogen evolution enables the conversion of mechanical energy into chemical fuels, but its efficiency is constrained by a trade‐off between piezoelectric polarization and electronic conductivity. Strong piezoelectric polarization is essential for sufficient driving force, yet highly polar materials typically suffer from poor ...
Chongyan Hao, Xinwei Guan, Yang Wu, Lingfeng Zhu, Yiwen Mai, Thomas Frauenheim, Zhenping Fu, Yalin Lu, Shidong Wang, Hanxing Liu, Hua Hao, Shujun Zhang, Zhenxiang Cheng, Xiaoning Li   +13 more
wiley   +1 more source

Mechanical Stability Is Key for Large-Scale Implementation of Photocatalytic Surface-Attached Film Technologies in Water Treatment

Frontiers in Chemical Engineering, 2021
Replacement of classical tertiary water treatment by chemical-free sunlight-driven photocatalytic units has been often proposed. Photocatalysts are required to be cost-effective, inert, chemically stable, reusable, and easy to separate and also that they
D.R. Ramos, M. Iazykov, M.I. Fernandez, J.A. Santaballa, M. Canle   +4 more
doaj   +1 more source

Janus nanostructures for heterogeneous photocatalysis [PDF]

Applied Physics Reviews, 2018
Water treatment, the hydrogen evolution reaction, and carbon capture are examples of the potential applications for solar photocatalysis. This has led to significant effort in the search for suitable heterogeneous catalysts. However, materials developed to-date often suffer from disadvantages such as charge recombination, low quantum efficiency ...
Aditya Chauhan, Monisha Rastogi, Paul Scheier, Chris Bowen, Ramachandran Vasant Kumar, Rahul Vaish   +5 more
openaire   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Large-scale study for the photocatalytic degradation of paracetamol using Fe2O3/TiO2 nanocomposite catalyst and CPC reactor under natural sunlight radiations

MethodsX, 2019
Heterogeneous photocatalysis is a promising advanced oxidation process for the degradation of emerging contaminants. In this regard, Hematite (α-Fe2O3) doped TiO2 nanocomposite catalyst was synthesized via sol-gel method.
Omar Fawzi Suleiman Khasawneh, Puganeshwary Palaniandy, Lum Pei Teng   +2 more
doaj   +1 more source

Wastewater Treatment by Advanced Oxidation Process and Their Worldwide Research Trends [PDF]

, 2019
Background: Water is a scarce resource and is considered a fundamental pillar of sustainable development. The modern development of society requires more and more drinking water. For this cleaner wastewater, treatments are key factors.
Agüera López, Ana María, Esteban García, Ana Belén, Garrido Cárdenas, José Antonio, Manzano Agugliaro, Francisco, Sánchez Pérez, José Antonio   +4 more
core   +1 more source

Gas-Phase Photodegradation of Decane and Methanol on TiO_2: Dynamic Surface Chemistry Characterized by Diffuse Reflectance FTIR [PDF]

, 2008
Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was used to study illuminated TiO2 surfaces under both vacuum conditions, and in the presence of organic molecules (decane and methanol).
Balcerski, William, Hoffmann, Michael R., Ryu, Su Young   +2 more
core   +1 more source