A C@TiO2 yolk–shell heterostructure for synchronous photothermal–photocatalytic degradation of organic pollutants

2020 ◽  
Vol 8 (3) ◽  
pp. 1025-1040 ◽  
Author(s):  
Yong Li ◽  
Qianqian Shen ◽  
Rongfeng Guan ◽  
Jinbo Xue ◽  
Xuguang Liu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Hot Electrons ◽  
Carbon Sphere ◽  
Novel Approach ◽  
Visible Light Driven ◽  
Interfacial Charge ◽  
Carrier Management

A novel approach integrates the hetero-interfacial charge carrier management, the photothermal excitation of the carbon sphere core and the injection of hot electrons into the TiO2 shells, consequently enhancing the visible light driven catalysis.

In-plane polarization induced by the hydrogen bonding and π–π stacking of functionalized PDI supramolecules for the efficient photocatalytic degradation of organic pollutants

2020 ◽  
Vol 4 (9) ◽  
pp. 2673-2687 ◽  
Author(s):  
Haiyan Li ◽  
Cong Wang ◽  
Xiaojuan Bai ◽  
Xuyu Wang ◽  
Boxuan Sun ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Electric Field ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Π Stacking ◽  
Visible Light Driven

A sustainable visible-light-driven and efficient photodegradation system was developed via integrating a polarized electric field with novel functionalized PDI supramolecules.

Biogenic synthesis of a Ag–graphene nanocomposite with efficient photocatalytic degradation, electrical conductivity and photoelectrochemical performance

2015 ◽  
Vol 39 (10) ◽  
pp. 8121-8129 ◽  
Author(s):  
Mohammad Ehtisham Khan ◽  
Mohammad Mansoob Khan ◽  
Moo Hwan Cho
Keyword(s):  
Electrical Conductivity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Photoelectrochemical Performance ◽  
Biogenic Synthesis ◽  
Visible Light Driven ◽  
Graphene Nanocomposite

Visible light-driven photocatalytic degradation of organic pollutants using the Ag–graphene nanocomposite.

Visible light driven photocatalytic degradation of organic pollutants via carbon quantum dots/TiO2

2021 ◽  
Author(s):  
Kunjie Wang ◽  
lei liang ◽  
Yi Zheng ◽  
Hongxia Li ◽  
Xiaohui Niu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Source ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Hydrothermal Treatment ◽  
Organic Pollutants ◽  
Carbon Quantum Dots ◽  
Olive Leaf ◽  
Visible Light Driven

Using olive leaf as the carbon source, carbon quantum dots (CQDs) with up-conversion luminescence were prepared via reflux method. Through a hydrothermal treatment, CQDs were loaded up on the surface...

scholarly journals Structurally and Compositionally Tunable Absorption Properties of AgCl@AgAu Nanocatalysts for Plasmonic Photocatalytic Degradation of Environmental Pollutants

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 405
Author(s):  
Han-Jung Ryu ◽  
Ha-Lin Kim ◽  
Jang Ho Joo ◽  
Jae-Seung Lee
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Aqueous Media ◽  
Environmental Pollutants ◽  
Selective Reduction ◽  
Visible Range ◽  
Ag Nps ◽  
Absorption Bands ◽  
Visible Light Driven

Composite nanomaterials having Ag nanoparticles (NPs) that decorate nanostructured AgCl (Ag/AgCl) are promising as plasmonic photocatalysts because of the visible-light absorption of Ag NPs. However, the narrow absorption bands of Ag NPs near 400 nm cause inefficient absorption in the visible range and, consequently, unsatisfactory photocatalytic activity of Ag/AgCl nanomaterials. In this study, we introduce a new class of AgCl-based photocatalysts that are decorated with bimetallic Ag and Au NPs (AgCl@AgAu NPs) for visible-light-driven photocatalytic degradation of organic pollutants. Polyvinylpyrrolidone induces selective reduction of noble metal precursors on AgCl while leaving AgCl intact. The extended composition of the decorating NPs red-shifts the absorption band to 550–650 nm, which allows the catalysts to take advantage of more energy in the visible range for improved efficiency. Furthermore, we control the structures of the AgCl@AgAu NPs, and investigate their correlation with photocatalytic properties. The versatility, chemical stability, and practical application of the AgCl@AgAu NPs are demonstrated using various organic pollutants, recycling experiments, and natural aqueous media, respectively. Our fundamental investigation on the synthesis and applications of AgCl-based nano-photocatalysts is highly valuable for designing plasmonic photocatalysts and expanding their utilization.

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