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Preparation and gaseous photocatalytic activity of smooth potassium dititanate film

QIAN Qinghua, HU Yuyan, WEN Gaofei, FENG Xin, LU Xiao-hua

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 308-314 doi: 10.1007/s11705-008-0047-7

Abstract: and differential scanning calorimetry (DSC), X-ray diffraction (XRD), atomic force microscopy (AFM), UV-VisibleCompared with TiO film, the KTiO film showed wide absorption in the ultraviolet and visible region.It was found that the monolayers on KTiO decomposed much faster than those on TiO under UV irradiationThe KTiO film efficiently decomposes the alkylsiloxane monolayers under UV irradiation in air and it

Keywords： reflectance     UV-Visible     photocurrent     irradiation     scanning calorimetry    

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Removal of virus aerosols by the combination of filtration and UV-C irradiation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1627-y

Abstract:

● The removal of virus aerosols by filtration and UV-C irradiation

Keywords： Filtration system     UV-C irradiation     Virus aerosol     Public health     COVID-19    

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and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 547-552 doi: 10.1007/s11783-013-0620-2

Abstract: However, less is known about the disinfection performance of UV and ozone (UV/ozone) coexposure and sequentialUV-followed-by-ozone (UV-ozone) and ozone-followed-by-UV (ozone-UV) exposures.In this study, inactivation of and bacteriophage MS2 by UV, ozone, UV/ozone coexposure, and sequentialUV-ozone and ozone-UV exposures was investigated and compared.Little enhancement on inactivation was found after the sequential UV-ozone or ozone-UV exposures.

Keywords： bacteria inactivation     photoreactivation     water disinfection     UV     ozone    

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Enhanced formation of trihalomethane disinfection byproducts from halobenzoquinones under combined UV

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1510-7

Abstract:

• 2,6-DCBQ and TCBQ generated THMs differently in chlorine and UV/chlorine

Keywords： Halobenzoquinone     Trihalomethane     Chlorine disinfection     UV irradiation     Disinfection byproducts     CombinedUV/chlorine    

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All-inorganic TiO/CsAgBiBr composite as highly efficient photocatalyst under visible light irradiation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1925-1936 doi: 10.1007/s11705-023-2344-6

Abstract: lead-free Cs2AgBiBr6 double halide perovskite nanocrystals, owing to its strong visible

Keywords： Cs2AgBiBr6 nanocrystals     visible-light photocatalyst     Cs2AgBiBr    

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Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 429-435 doi: 10.1007/s11783-014-0677-6

Abstract: rates of carbon tetrachloride (CCl ) and 2,4-dichlorophenol (2,4-DCP) in water by the ultraviolet (UV) light irradiation alone and H O /UV were experimentally investigated.capacities of the two different ultraviolet light sources (low and medium pressure Hg arc) in H O /UVThe low or medium UV lamp alone resulted in a 60%–90% decomposition of 2,4-DCP while a slight additionthan the low pressure UV lamp alone.

Keywords： H2O2/ultraviolet (UV) light     advanced oxidation     UV light irradiation     chlorinated    

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Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1430-6

Abstract:

• UV-vis absorption analyzer was applied in drainage type online recognition

Keywords： Drainage online recognition     UV-vis spectra     Derivative spectrum     Convolutional neural network    

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Novel Ag-AgBr decorated composite membrane for dye rejection and photodegradation under visible light

Yixing Wang, Liheng Dai, Kai Qu, Lu Qin, Linzhou Zhuang, Hu Yang, Zhi Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 892-901 doi: 10.1007/s11705-020-2011-0

Abstract: degraded approximately 90.75% and 96.81% in batch mode via the synthesized photocatalytic membranes under visible

Keywords： Ag-AgBr     dye rejection     photodegradation     visible light    

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Low temperature synthesis of visible light responsive rutile TiO

John TELLAM, Xu ZONG, Lianzhou WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 53-57 doi: 10.1007/s11705-011-1165-1

Abstract: hydrothermal method from a titanium carbide (TiC) nano-powder precursor at low temperature to produce a stable visibleshowed a faceted nano-rod structure, and were tested for absorption and photo-degradation ability under visibleParticles with shorter synthesis times showed higher visible light absorption and corresponding photo-degradationwhile those synthesized at lower temperatures had lower, but still evident, degradation ability under visible

Keywords： photocatalysis     rutile     TiO2     hydrothermal     visible     titanium carbide    

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Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1032-0

Abstract: Photodegradation by ultraviolet irradiation (UV) is increasingly applied in volatile organic compoundhydrocarbon derivatives, at 150–200 ppm in air and nitrogen gas were treated by a laboratory-scale UVreactor with 185/254 nm irradiation to systematically investigate their removal and conversion by UVThe carbon balance of each VOC during UV irradiation was analyzed based on the VOC, CO and PM concentrationsAlthough the UV technique exhibited a high VOC removal efficiency, its drawbacks, specifically low mineralization

Keywords： VOCs     UV photodegradation     Particulate matters     Ozone    

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Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 93-101 doi: 10.1007/s11705-022-2175-x

Abstract: Defect construction and heteroatom doping are effective strategies for improving photocatalytic activity of carbon nitride (g-C3N4). In this work, N defects were successfully prepared via cold plasma. High-energy electrons generated by plasma can produce N defects and embed sulfur atoms into g-C3N4. The N defects obviously promoted photocatalytic degradation performance that was 7.5 times higher than that of pure g-C3N4. The concentration of N defects can be tuned by different power and time of plasma. With the increase in N defects, the photocatalytic activity showed a volcanic trend. The g-C3N4 with moderate concentration of N defects exhibited the highest photocatalytic activity. S-doped g-C3N4 exhibited 11.25 times higher photocatalytic activity than pure g-C3N4. It provided extra active sites for photocatalytic reaction and improved stability of N defects. The N vacancy-enriched and S-doped g-C3N4 are beneficial for widening absorption edge and improving the separation efficiency of electron and holes.

Keywords： g-C3N4     nitrogen defect     sulfur doping     photodegradation     plasma    

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Visible-light-driven heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1417-3

Abstract:

• Bi doping in TiO2 enhanced the separation of photo-generated electron-hole.

Keywords： Bi doping     Visible light     Algal removal     Charge carrier separation    

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recyclable BiOBr/silk fibroin-cellulose acetate composite film for efficient photodegradation of dyes under visible

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1765-1775 doi: 10.1007/s11705-023-2323-y

Abstract: using various techniques, and their photocatalytic performance for dye wastewater was evaluated under visible

Keywords： BiOBr nanosheet     cellulose acetate     silk fibroin     photocatalytic degradation     dye wastewater    

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Fabrication of three-dimensional porous La-doped SrTiO3 microspheres with enhanced visible light catalytic

Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 440-449 doi: 10.1007/s11705-018-1700-4

Abstract: , much effort has been focused on the development of the photocatalysts with high performance under visibleTherefore, the absorption edge of LST samples shifts toward the visible light region, and their photocatalyticactivity for the Cr(VI) reduction is enhanced under visible light.Among all LST samples, LST-0.5 (the La3+ doping content is 0.5 wt-%) exhibited the highest visible-light

Keywords： SrTiO3     La3+ doping     porous microsphere     visible-light photocatalysis     Cr(VI) reduction    

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Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 147-154 doi: 10.1007/s11783-014-0749-7

Abstract: including pH, turbidity, alkalinity, and hardness on the removal of humic acid were investigated in a UVOur results suggested that UV light radiation could effectively improve the removal rate of humic acidthe variations of the selected water quality parameters had little adverse effect on the function of UVAfter UV light radiation, the removal rate of the nitro-humic acid (NHA) increased from 20% to 60% inThe formation of positive charged sites after UV light radiation was considered to be the primary factor

Keywords： coagulation     drinking water     humic acid     UV light radiation     water quality    

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Title Author Date Type Operation

Preparation and gaseous photocatalytic activity of smooth potassium dititanate film

QIAN Qinghua, HU Yuyan, WEN Gaofei, FENG Xin, LU Xiao-hua

Journal Article

Removal of virus aerosols by the combination of filtration and UV-C irradiation

Journal Article

and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Journal Article

Enhanced formation of trihalomethane disinfection byproducts from halobenzoquinones under combined UV

Journal Article

All-inorganic TiO/CsAgBiBr composite as highly efficient photocatalyst under visible light irradiation

Journal Article

Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Journal Article

Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Journal Article

Novel Ag-AgBr decorated composite membrane for dye rejection and photodegradation under visible light

Yixing Wang, Liheng Dai, Kai Qu, Lu Qin, Linzhou Zhuang, Hu Yang, Zhi Xu

Journal Article

Low temperature synthesis of visible light responsive rutile TiO

John TELLAM, Xu ZONG, Lianzhou WANG

Journal Article

Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Journal Article

Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic

Journal Article

Visible-light-driven heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier

Journal Article

recyclable BiOBr/silk fibroin-cellulose acetate composite film for efficient photodegradation of dyes under visible

Journal Article

Fabrication of three-dimensional porous La-doped SrTiO3 microspheres with enhanced visible light catalytic

Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang

Journal Article

Effects of water quality on the coagulation performances of humic acids irradiated with UV light

Wendong WANG,Qinghai FAN,Zixia QIAO,Qin YANG,Yabo WANG,Xiaochang WANG

Journal Article