Fabrication of Au/TiO 2 nanowires@carbon fiber paper ternary composite for visible-light photocatalytic degradation of gaseous styrene

Shi, Jian Lin; Chen, Jiangyao; Li, Guiying; An, Taicheng; Yamashita, Hiromi

doi:10.1016/j.cattod.2016.06.026

Cited by 49 publications

(18 citation statements)

References 62 publications

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“…Here, Au nanoparticles were able to absorb photons and form excited electrons under visible light irradiation. Moreover, electrons can be additionally shifted to the TiO 2 conduction band, while positive holes stay on the metal nanoparticles [23]. Surface modification of quantum dots is achieved by adding capping or functionalized agents.…”

Section: Introductionmentioning

confidence: 99%

Potential of TiO2 with Various Au Nanoparticles for Catalyzing Mesotrione Removal from Wastewaters under Sunlight

et al. 2020

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Nowadays, great focus is given to the contamination of surface and groundwater because of the extensive usage of pesticides in agriculture. The improvements of commercial catalyst TiO2 activity using different Au nanoparticles were investigated for mesotrione photocatalytic degradation under simulated sunlight. The selected system was 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L) that was studied by transmission electron microscopy and ultraviolet-visible (UV-Vis) spectroscopy. It was found that TiO2 particles size was ~20 nm and ~50 nm, respectively. The Au nanoparticles were below 10 nm and were well distributed within the framework of TiO2. For 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L), band gap energy was 2.45 eV. In comparison to the pure TiO2, addition of Au nanoparticles generally enhanced photocatalytic removal of mesotrione. By examining the degree of mineralization, it was found that 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L) system was the most efficient for the removal of the mesotrione and intermediates. The effect of tert-butanol, NaF and ethylenediaminetetraacetic acid disodium salt on the transformation rate suggested that the relative contribution of various reactive species changed in following order: h+ > ●OHads > ●OHbulk. Finally, several intermediates that were formed during the photocatalytic treatment of mesotrione were identified.

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Section: Introductionmentioning

confidence: 99%

Potential of TiO2 with Various Au Nanoparticles for Catalyzing Mesotrione Removal from Wastewaters under Sunlight

et al. 2020

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“…In addition to the abovementioned physical methods, same chemical techniques also can be employed to fabricate conductive layer on the surface of paper substrates, such as in situ seed growth, 52 polymerization, 53 and laserinduced graphene (LIG). 54,55 Compare with the physical methods depending on the physical adsorption between the conductive materials and paper, the electrode fabricating by chemical methods are more stable under high strength of bending, twisting and stretching.…”

Section: Chemical Methodsmentioning

confidence: 99%

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Tang

Guo

Peng

et al. 2020

EcoMat

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In recent years, as a new type of mechanical energy conversion technology, triboelectric nanogenerator (TENG) based on the coupling effect of contact electrification and electrostatic induction has shown distinct advantages in the field of distributed micro/nano power sources, high-precision sensing, and portable high-voltage sources. Typically, the main functional components of TENG include a tribo-layer and the conductive layer, both of which need to be attached on the substrate material serving as support framework thus form a usable device. According to the property of different substrate materials, TENG can achieve various characteristics to meet different practical demands. Among plenty of materials, paper, a commend commodity in daily life, with the characters of cost effectiveness, flexibility, lightweight, integratability, and biocompatibility is considered as a promising substrate or frame material to form super-portable TENG for self-powered electronic devices. However, the rough and porous structure increases the risk of breaking conductive layer prepared by directly depositing metal film during continuously periodical deformation. Herein, focusing on paper-based triboelectric nanogenerator, this article summarizes the preparation methods of paper-based durable conductive layer. Then, the recent researches of paper-based TENGs are systematically introduced from the aspects of mechanical energy harvesting, micro-nano energy devices, self-powered sensors and systems, and so on. Finally, future opportunities and the remaining challenges are expected and discussed. K E Y W O R D S durable conductive layer, mechanical energy harvesting, micro-nano energy devices, paperbased triboelectric nanogenerator, self-powered sensors and systems 1 | INTRODUCTION With the coordinated development of advanced materials/ manufacturing technology and information technology,

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“…The integration of TiO 2 in cellulose-based materials to form composites or membranes has been reported, but the growth or deposition of thin films or nanostructures on a paper substrate has also shown promise [12,15,19,177,178]. Hu et al [179] produced a flexible and binder-free graphene-TiO 2 paper to be applied as lithium-ion battery anode materials, consisting of 3-D nano-structures with nano-sized TiO 2 intercalated between graphene layers as pillars to increase the Li-ion insertion/extraction rate.…”

Section: Tio 2 Photocatalytic Papermentioning

confidence: 99%

“…Another study reported a ternary composite composed by Au nanoparticles decorating TiO 2 nanowires onto hierarchically porous carbon fiber paper. Its photocatalytic activity was investigated with the degradation of gaseous styrene under visible light irradiation [177].…”

Section: Tio 2 Photocatalytic Papermentioning

confidence: 99%

Metal Oxide-Based Photocatalytic Paper: A Green Alternative for Environmental Remediation

et al. 2021

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The interest in advanced photocatalytic technologies with metal oxide-based nanomaterials has been growing exponentially over the years due to their green and sustainable characteristics. Photocatalysis has been employed in several applications ranging from the degradation of pollutants to water splitting, CO2 and N2 reductions, and microorganism inactivation. However, to maintain its eco-friendly aspect, new solutions must be identified to ensure sustainability. One alternative is creating an enhanced photocatalytic paper by introducing cellulose-based materials to the process. Paper can participate as a substrate for the metal oxides, but it can also form composites or membranes, and it adds a valuable contribution as it is environmentally friendly, low-cost, flexible, recyclable, lightweight, and earth abundant. In term of photocatalysts, the use of metal oxides is widely spread, mostly since these materials display enhanced photocatalytic activities, allied to their chemical stability, non-toxicity, and earth abundance, despite being inexpensive and compatible with low-cost wet-chemical synthesis routes. This manuscript extensively reviews the recent developments of using photocatalytic papers with nanostructured metal oxides for environmental remediation. It focuses on titanium dioxide (TiO2) and zinc oxide (ZnO) in the form of nanostructures or thin films. It discusses the main characteristics of metal oxides and correlates them to their photocatalytic activity. The role of cellulose-based materials on the systems’ photocatalytic performance is extensively discussed, and the future perspective for photocatalytic papers is highlighted.

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Fabrication of Au/TiO 2 nanowires@carbon fiber paper ternary composite for visible-light photocatalytic degradation of gaseous styrene

Cited by 49 publications

References 62 publications

Potential of TiO2 with Various Au Nanoparticles for Catalyzing Mesotrione Removal from Wastewaters under Sunlight

Potential of TiO2 with Various Au Nanoparticles for Catalyzing Mesotrione Removal from Wastewaters under Sunlight

Recent progresses on paper‐based triboelectric nanogenerator for portable self‐powered sensing systems

Metal Oxide-Based Photocatalytic Paper: A Green Alternative for Environmental Remediation

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