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| 1 | Advances in photocatalytic disinfection of bacteria:Development of photocatalysts and mechanisms显示文摘Photocatalysis has attracted worldwide attention due to its potential in solar energy conversion.As a 'green' advanced oxidation technology, it has been extensively used for water disinfection and wastewater treatment. This article provides a review of the recent progress in solar energy-induced photocatalytic disinfection of bacteria, focusing on the development of highly efficient photocatalysts and their underlying mechanisms in bacterial inactivation. The photocatalysts are classified into Ti O2-based and non-Ti O2-based systems, as Ti O2 is the most investigated photocatalyst. The synthesis methods, modification strategies, bacterial disinfection activities and mechanisms of different types of photocatalysts are reviewed in detail.Emphasis is given to the modified Ti O2, including noble metal deposition, non-metal doping,dye sensitization and composite Ti O2, along with typical non-Ti O2-based photocatalysts for bacterial disinfection, including metal oxides, sulfides, bismuth metallates, graphene-based photocatalysts, carbon nitride-based photocatalysts and natural photocatalysts. A simple and versatile methodology by using a partition system combined with scavenging study is introduced to study the photocatalytic disinfection mechanisms in different photocatalytic systems. This review summarizes the current state of the work on photocatalytic disinfection of bacteria, and is expected to offer useful insights for the future development in the field. | Wanjun Wang Guocheng Huang Jimmy C.Yu Po Keung Wong | 2015 | Journal of Environmental Sciences2015,27,8: | 15 |
| 2 | A Lamellar Ceria Structure with Encapsulated Platinum Nanoparticles显示文摘A novel lamellar feather-like CeO_(2) structure has been fabricated by using a triblock copolymer as the structure-directing agent.This material was characterized in detail by X-ray diffraction,scanning electron microscopy,transmission electron microscopy,X-ray photoelectron spectroscopy,and BET surface area measurements.Compared with conventional spherical shaped ceria prepared by ammonia gelation,the ceria feathers have superior ability to support nanosized platinum particles due to their special structure.The“skeletons”of ceria feathers can serve as an ideal host matrix to anchor the platinum particles.Furthermore,the inter-crossing pattern of the“skeletons”also acts as a partition to separate platinum particles,allowing the Pt nanoparticles(average diameter~6 nm)to be highly dispersed in the structure.The Pt/feather-like CeO_(2) catalyst exhibits high activity in the water gas shift reaction. | Angelo C.Mak Changlin Yu Jimmy C.Yu Zhendong Zhang Chunman Ho | 2008 | Nano Research2008,1,6: | 5 |
| 3 | A metal-free composite photocatalyst of graphene quantum dots deposited on red phosphorus显示文摘A simple approach to enhance the photocatalytic activity of red phosphorus(P) was developed.A mechanical ball milling method was applied to reduce the size of red P and to deposit graphene quantum dots onto red P. The product was characterized by scanning electron microscopy, transmission electron microscopy, contact angle measurements, zeta-potential measurements, X-ray diffraction and UV–vis absorption spectroscopy. The product exhibited high visible-light-driven photocatalytic performance in the photodegradation of rhodamine B. | Donald K.L.Chan Jimmy C.Yu Yecheng Li Zhuofeng Hu | 2017 | Journal of Environmental Sciences2017,29,10: | 3 |
| 4 | Progress in sonochemical fabrication of nanostructured photocatalysts显示文摘In recent years,nanostructured photocatalysts have become the research focus due to their immense potential application in environmental purification and energy conversion.The photocatalytic performance of photocatalysts is closely related to their synthesis methods.High-intensity ultrasound irradiation could provide a unique tool for fabrication of photocatalysts with novel nanostructures.Ultrasound induces acoustic cavitation which generates unique physicochemical conditions,e.g.,hot spot(5000 °C),high pressure of 100 MPa,fast rate of heat conduction(>>1×10^(10)°Cás^(-1)).These unique physicochemical conditions allow for the synthesis of various nanostructured photocatalysts.This review summarized the recent development in fabrication of photocatalysts with special nanostructures and their applications.The typical sonochemical reactors and parameters in sonochemical synthesis are introduced and discussed.Sonochemically prepared structures including nano-/microspheres,one-dimensional(1D) nanorods,two-dimensional(2D) nanosheets(nanoflakes,nanosquares),noble metal nanoparticle(NP)-deposited and element-doped photocatalysts are described and summarized.It is believed that sonication is a green methodology,and it holds greatpotential in the near future for nanostructured photocatalyst fabrication. | Chang-Lin Yu Jimmy C.Yu Hong-Bo He Wan-Qin Zhou | 2016 | Rare Metals2016,35,3: | 1 |
| 5 | Facet effect of copper(I) sulfide nanocrystals on photoelectrochemical properties | Yecheng Li Lei Zhang Jimmy C.Yu Shu-Hong Yu | 2012 | Progress in Natural Science:Materials International2012,22,6: | 0 |