نتایج جستجو برای: photocatalysis

تعداد نتایج: 3486  

Journal: :Solar RRL 2021

Rapid growth in economy and society currently relies on fossil fuels heavily, leading to serious concern energy sustainability environmental pollution. This has aroused increasing interest solar energy, which is the most abundant green source. However, it remains a significant challenge storing harnessing due its diurnal seasonal fluctuation along with uneven distribution. Moreover, density rel...

Journal: :Chemical communications 2013
Maxim A Nasalevich Maarten G Goesten Tom J Savenije Freek Kapteijn Jorge Gascon

Correction for 'Enhancing optical absorption of metal-organic frameworks for improved visible light photocatalysis' by Maxim A. Nasalevich et al., Chem. Commun., 2013, 49, 10575-10577.

Journal: :Chemical communications 2011
Yuning Huo Miao Miao Yi Zhang Jian Zhu Hexing Li

A facile aerosol-spraying approach was developed to prepare mesoporous BiFeO(3) hollow spheres with enhanced activity and durability in visible photocatalysis.

Journal: :Journal of the American Chemical Society 2013
Feng Wang Chuanhao Li Huanjun Chen Ruibin Jiang Ling-Dong Sun Quan Li Jianfang Wang Jimmy C Yu Chun-Hua Yan

The efficient use of solar energy has received wide interest due to increasing energy and environmental concerns. A potential means in chemistry is sunlight-driven catalytic reactions. We report here on the direct harvesting of visible-to-near-infrared light for chemical reactions by use of plasmonic Au-Pd nanostructures. The intimate integration of plasmonic Au nanorods with catalytic Pd nanop...

2015
Qi Hao Chenxi Wang Hao Huang Wan Li Deyang Du Di Han Teng Qiu Paul K. Chu

The effectiveness of photocatalytic processes is dictated largely by plasmonic materials with the capability to enhance light absorption as well as the energy conversion efficiency. Herein, we demonstrate how to improve the plasmonic photocatalytic properties of TiO2/Al nano-void arrays by overlapping the localized surface plasmon resonance (LSPR) modes with the TiO2 band gap. The plasmonic TiO...

2013
Muhammad Umar Abdul Aziz

A photocatalyst is defined as a substance which is activated by adsorbing a photon and is capable of accelerating a reaction without being consumed [1]. These substances are invaria‐ bly semiconductors. Semiconducting oxide photocatalysts have been increasingly focused in recent years due to their potential applications in solar energy conversion and environmen‐ tal purification. Semiconductor ...

Journal: :Water research 2011
Cristina Postigo Carla Sirtori Isabel Oller Sixto Malato Manuel Ignacio Maldonado Miren López de Alda Damià Barceló

The present manuscript describes the transformation and mineralization of methadone (MET) in aqueous solutions (demineralized water (DW) and synthetic municipal wastewater effluent (SWeff)) by natural solar irradiation and two solar photocatalytic processes: heterogeneous photocatalysis with titanium dioxide (TiO2) and homogeneous photocatalysis by photo-Fenton. Direct solar irradiation resulte...

2013
Alex Omo Ibhadon Paul Fitzpatrick

Semiconductor heterogeneous photocatalysis, the subject of this review, is a versatile, low-cost and environmentally benign treatment technology for a host of pollutants. These may be of biological, organic and inorganic in origin within water and air. The efficient and successful application of photocatalysis demands that the pollutant, the catalyst and source of illumination are in close prox...

2014
Wolfgang M Samhaber Minh Tan Nguyen

Nanofiltration (NF) is a capable method for the separation of dyes, which can support and even improve the applicability of photocatalysis in effluent-treatment processes. The membrane process usually will need a special pre-treatment to avoid precipitation and fouling on the membrane surface. Conceptually NF can be applied in the pre-treatment prior to the catalytic reactor or in connection wi...

2017
Chia-Jui Li Chuan-Ming Tseng Sz-Nian Lai Chin-Ru Yang Wei-Hsuan Hung

Although TiO2 was formerly a common material for photocatalysis reactions, its wide band gap (3.2 eV) results in absorbing only ultraviolet light, which accounts for merely 4% of total sunlight. Modifying TiO2 has become a focus of photocatalysis reaction research, and combining two metal oxide semiconductors is the most common method in the photocatalytic enhancement process. When MoO3 and TiO...

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