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| 1 | Enhanced photocatalytic activity of rGO/TiO2 for the decomposition of formaldehyde under visible light irradiation显示文摘Due to the low concentration of indoor air contaminants,photocatalytic technology shows low efficiency for indoor air purification.The application of TiO_2 for photocatalytic removal of formaldehyde is limited,because TiO_2 can only absorb ultraviolet(UV) light.Immobilization of TiO_2 nanoparticles on the surface of graphene can improve the visible light photocatalytic activity and the adsorption capacity.In this study,rGO(reduced graphene oxide)/TiO_2 was synthesized through a hydrothermal method using titanium tetrabutoxide and graphene oxide as precursors,and was used for the degradation of low concentration formaldehyde in indoor air under visible light illumination.Characterization of the crystalline structure and morphology of rGO/TiO_2 revealed that most GO was reduced to rGO during the hydrothermal treatment,and anatase TiO_2 nanoparticles(with particle size of 15–30 nm) were dispersed well on the surface of the rGO sheets.rGO/TiO_2 exhibited excellent photocatalytic activity for degradation of formaldehyde in indoor air and this can be attributed to the role of rGO,which can act as the electron sink and transporter for separating photo-generated electron–hole pairs through interfacial charge transfer.Furthermore,rGO could adsorb formaldehyde molecules from air to produce a high concentration of formaldehyde on the surface of rGO/TiO_2.Under visible light irradiation for 240 min,the concentration of formaldehyde could be reduced to 58.5 ppbV.rGO/TiO_2 showed excellent moisture-resistance behavior,and after five cycles,r GO/TiO_2 maintained high photocatalytic activity for the removal of formaldehyde(84.6%).This work suggests that the synthesized rGO/TiO_2 is a promising photocatalyst for indoor formaldehyde removal. | Lian Yu Long Wang Xibo Sun Daiqi Ye | 2018 | Journal of Environmental Sciences2018，30，11： | 13 |
| 2 | Allowance and allocation of industrial volatile organic compounds emission in China for year 2020 and 2030显示文摘As an effective pollution control method, emission allowance and allocation just implemented in volatile organic compounds(VOCs) control strategy of China in 2016. This article presents a possible way to set the emission allowance targets and establishes an allowance allocation model for the object year, 2020 and 2030, using 2010 as the reference year. On the basis of regression and scenario analysis method, the emission allowance targets were designed,which were 17.902 Tg and 18.224 Tg for 2020 and 2030, with an increasing rate of 28.75% and31.06% compared to 2010. From the perspective of industries, processes using VOCscontaining products, like machinery and equipment manufacturing, would continue to be the most significant industrial VOCs emission sources in the future of China. Four allocation indicators were selected, which are per capita GDP of each province, per capita industrial VOCs emission of each province, the economic contribution of industrial sector to regional economy of each province, and the emission intensity per land area of each province, respectively.Based on information entropy, the weights of the indicators were calculated and an emission allocation model was established, and the results showed that provinces like Shandong,Jiangsu, Guangdong, Zhejiang and Fujian were calculated to obtain more emission allowance while burden more reduction responsibility. Meanwhile, provinces like Guizhou, Ningxia,Hainan, Qinghai and Xizang were on the contrary. This paper suggests governments to enhance or ease to industrial VOCs reduction burden of each province in order to stimulate its economy or change its way of economy development. | Jiani Zhang Jingfang Xiao Xiaofang Chen Xiaoming Liang Liya Fan Daiqi Ye | 2018 | Journal of Environmental Sciences2018，30，7： | 13 |
| 3 | Adsorption of VOCs on reduced graphene oxide显示文摘A modified Hummer's method was adopted for the synthesis of graphene oxide(GO) and reduced graphene oxide(rGO). It was revealed that the modified method is effective for the production of GO and rGO from graphite. Transmission electron microscopy(TEM) images of GO and rGO showed a sheet-like morphology. Because of the presence of oxygenated functional groups on the carbon surface, the interlayer spacing of the prepared GO was higher than that of rGO. The presence of \OH and C_O groups in the Fourier transform infrared spectra(FTIR) spectrum and G-mode and 2D-mode in Raman spectra confirmed the synthesis of GO and rGO. rGO(292.6 m^2/g) showed higher surface area than that of GO(236.4 m^2/g). The prepared rGO was used as an adsorbent for benzene and toluene(model pollutants of volatile organic compounds(VOCs)) under dynamic adsorption/desorption conditions. rGO showed higher adsorption capacity and breakthrough times than GO. The adsorption capacity of rGO for benzene and toluene was 276.4 and 304.4 mg/g, respectively.Desorption experiments showed that the spent rGO can be successfully regenerated by heating at 150.0°C. Its excellent adsorption/desorption performance for benzene and toluene makes rGO a potential adsorbent for VOC adsorption. | Lian Yu Long Wang Weicheng Xu Limin Chen Mingli Fu Junliang Wu Daiqi Ye | 2018 | Journal of Environmental Sciences2018，30，5： | 10 |
| 4 | Toluene decomposition performance and NOx by-product formation during a DBD-catalyst process显示文摘Characteristics of toluene decomposition and formation of nitrogen oxide(NOx) by-products were investigated in a dielectric barrier discharge(DBD) reactor with/without catalyst at room temperature and atmospheric pressure. Four kinds of metal oxides, i.e., manganese oxide(Mn Ox), iron oxide(Fe Ox), cobalt oxide(Co Ox) and copper oxide(Cu O), supported on Al2O3/nickel foam, were used as catalysts. It was found that introducing catalysts could improve toluene removal efficiency, promote decomposition of by-product ozone and enhance CO2 selectivity. In addition, NOx was suppressed with the decrease of specific energy density(SED) and the increase of humidity, gas flow rate and toluene concentration, or catalyst introduction. Among the four kinds of catalysts, the Cu O catalyst showed the best performance in NOx suppression. The Mn Ox catalyst exhibited the lowest concentration of O3 and highest CO2 selectivity but the highest concentration of NOx. A possible pathway for NOx production in DBD was discussed. The contributions of oxygen active species and hydroxyl radicals are dominant in NOx suppression. | Yufang Guo Xiaobin Liao Mingli Fu Haibao Huang Daiqi Ye | 2015 | Journal of Environmental Sciences2015，27，2： | 7 |
| 5 | Highly efficient Cu/anatase TiO2 {001}-nanosheets catalysts for methanol synthesis from CO2显示文摘Anatase TiO_2 nanosheets(-ns-) with dominant exposed {001} facets were used as support to load copper,and the synthesized Cu/TiO_2-ns catalysts were evaluated for CO_2 hydrogenation to methanol. Under the reaction conditions, P = 3.0 MPa, T = 260 ℃, V(N_2):V(H_2):V(CO_2) = 8:69:23 and gas hourly space velocity(GHSV) = 3600 mL g^(-1)h^(-1), the methanol yield reached an appealing high value, 5.6%. Copper-loading amount, calcination temperature and reduction atmosphere have been investigated in this work, which significantly influence the particle sizes of copper and/or the defect concentration in TiO_2, then leading to different catalytic performance. Characterizations of XRD, EPR, CO_2-TPD and FTIR demonstrate that higher specific surface area of Cu is good for the hydrogenation of CO_2 and adequate amount of Ti^(3+) plays important roles in CO_2 activation. Both of them facilitate high turnover frequency(TOF) of methanol formation. | Yunfeng Bao Chunlei Huang Limin Chen Yu dong Zhang Long Liang Jinjun Wen Mingli Fu Junliang Wu Daiqi Ye | 2018 | Journal of Energy Chemistry2018，27，2： | 7 |
| 6 | Current progress in developing metal oxide nanoarrays-based photoanodes for photoelectrochemical water splitting显示文摘Solar energy driven photoelectrochemical(PEC) water splitting is a clean and powerful approach for renewable hydrogen production. The design and construction of metal oxide based nanoarray photoanodes is one of the promising strategies to make the continuous breakthroughs in solar to hydrogen conversion efficiency of PEC cells owing to their owned several advantages including enhanced reactive surface at the electrode/electrolyte interface, improved light absorption capability, increased charge separation efficiency and direct electron transport pathways. In this Review, we first introduce the structure,work principle and their relevant efficiency calculations of a PEC cell. We then give a summary of the state-of the-art research in the preparation strategies and growth mechanism for the metal oxide based nanoarrays, and some details about the performances of metal oxide based nanoarray photoanodes for PEC water splitting. Finally, we discuss key aspects which should be addressed in continued work on realizing high-efficiency metal oxide based nanoarray photoanodes for PEC solar water splitting systems. | Yongcai Qiu Zhenghui Pan Haining Chen Daiqi Ye Lin Guo Zhiyong Fan Shihe Yang | 2019 | Science Bulletin2019，64，18： | 7 |
| 7 | Detection of hydroxyl radical in plasma reaction on toluene removal显示文摘A new method was introduced to detect the concentration of OH radical in dielectric barrier discharge(DBD)reaction.A film, which was impregnated with salicylic acid,was used to detect OH radical in plasma reaction at room temperature and atmospheric pressure.Salicylic acid reacts with OH radical and produces 2,5-dihydroxybenzoic acid(2,5-DHBA).Then,a high performance liquid chromatography(HPLC)was carried out to detect the concentration of 2,5-DHBA.Therefore,OH radical in nonthermal plasma reaction could be calculated.In this plasma reaction,the applied voltage was controlled at 10 kV,the initial concentration of toluene was 400 mg/m3,and the gas flow rate was 300 ml/min.It was observed that when the film was placed away from the plasma area,2,5-DHBA could not be detected by HPLC,although the sampling time lasted for 48 h.On the other hand,when the film was placed in the plasma area and the sampling time being too long(>4 h),the concentration of 2,5-DHBA was also below detection limit,and it could not be detected by HPLC.However,when the film was placed in the plasma reaction field with the sampling time being 3 h,the concentration of OH radical was calculated to be 10.54×1012 cm-3.In addition,concentration of OH radical was investigated under different humidity,such as 0.2%,0.4%,0.6%,0.8%,and 1.0%.The results showed that the amount of OH radical stayed at order of magnitude of 1012 cm-3 and increased with the increase of humidity. | Guo Yufang Liao Xiaobin Ye Daiqi | 2008 | Journal of Environmental Sciences2008，20，12： | 5 |
| 8 | Relationships of ozone formation sensitivity with precursors emissions,meteorology and land use types,in Guangdong-Hong Kong-Macao Greater Bay Area,China显示文摘Due to the influences of precursors emissions,meteorology,geography and other factors,ozone formation sensitivity(OFS)is generally spatially and temporally heterogeneous.This study characterized detailed spatial and temporal variations of OFS in Guangdong-Hong Kong-Macao Greater Bay Area(GBA)from 2012 to 2016 based on OMI satellite data,and analyzed the relationships of OFS with precursors emissions,meteorology and land use types(LUTs).From 2012 to 2016,the OFS tended to be NOx-limited in GBA,with the value of FNR(HCHO/NO 2)increasing from 2.04 to 2.22.According to the total annual emission statistics of precursors,NOx emissions decreased by 33.1%and VOCs emissions increased by 35.2%from 2012 to 2016,directly resulting in OFS tending to be NO x-limited.The Grey Relation Analysis results show that total column water(TCW),surface net solar radiation(SSR),air temperature at 2 m(T2)and surface pressure(SP)are the top four meteorological factors with the greatest influences on OFS.There are significant positive correlations between FNR and T2,SSR,TCW,and significant negative correlations between FNR and SP.In GBA,the OFS tends to be NO x-limited regime in wet season(higher T2,SSR,TCW and lower SP)and VOCs-limited regime in dry season(lower T2,SSR,TCW and higher SP).The FNR displays obvious gradient variations on different LUTs,with the highest in“Rural areas”,second in“Suburban areas”and lowest in“Urban areas”. | Yuping Chen Hui Yan Yijuan Yao Chunling Zeng Ping Gao Liyue Zhuang Liya Fan Daiqi Ye | 2020 | Journal of Environmental Sciences2020，32，8： | 5 |
| 9 | Macroporous Ni foam-supported Co_3O_4 nanobrush and nanomace hybrid arrays for high-efficiency CO oxidation显示文摘Herein, we reported the synthesis of well-defined Co_3O_4 nanoarrays(NAs) supported on a monolithic three-dimensional macroporous nickel(Ni) foam substrate for use in highefficiency CO oxidation. The monolithic Co_3O_4 NAs catalysts were obtained through a generic hydrothermal synthesis route with subsequent calcination. By controlling the reaction time,solvent polarity and deposition agent, these Co_3O_4 NAs catalysts exhibited various novel morphologies(single or hybrid arrays), whose physicochemical properties were further characterized by using several analytical techniques. Based on the catalytic and characterization analyses, it was found that the Co_3O_4 NAs-6 catalyst with nanobrush and nanomace arrays displayed enhanced catalytic activity for CO oxidation, achieving an efficient 100% CO oxidation conversion at a gas hourly space velocity(GHSV) 10,000 hr^(-1) and 150°C with longterm stability. Compared with the other Co_3O_4 NAs catalysts, it had the highest abundance of surface-adsorbed oxygen species, excellent low-temperature reducibility and was rich in surface-active sites(Co^(3+)/Co^(2+)= 1.26). | Shengpeng Mo Hui He Quanming Ren Shuangde Li Weixia Zhang Mingli Fu Limin Chen Junliang Wu Yunfa Chen Daiqi Ye | 2019 | Journal of Environmental Sciences2019，31，1： | 4 |
| 10 | Unraveling specific role of carbon matrix over Pd/quasi-Ce-MOF facilitating toluene enhanced degradation显示文摘Metal organic frameworks(MOFs)derivatives represented by quasi-MOFs have excellent physical and chemical properties and can be applied for the catalytic combustion of volatile organic compounds(VOCs).In this work,Pd/quasi-Ce-BTC synthesized by simple one-step Npyrolysis was applied to the oxidation of toluene,showing excellent toluene catalytic activity(T_(90)=175℃,30000 mL/(g·h)).Microscopic analyses indicate the formation and interaction of a carbon matrix composite quasi-MOF structure interface.The results show that the amorphous carbon matrix formed during the partial pyrolysis of Ce-BTC significantly improves the adsorption and activation capacity of toluene in the reaction,and constructs a reductive system to maintain high concentrations of Ce^(3+)and Pd^(0),which can facilitate the activation and utilization of oxygen in reaction.Quasi in-situ XPS proves that carbon matrix is indirectly involved in the activation and storage of oxygen,and Pd^(0)is the crucial active site for the activation of oxygen.Stability and water resistance tests display good stability of Pd/quasi-Ce-BTC.This work provides a potential method for designing quasi-MOF catalysts towards VOCs effective abatement. | Chunjing Su Zhi Li Mengqi Mao Wenhua Ye Jinping Zhong Quanming Ren Hairong Cheng Haomin Huang Mingli Fu Junliang Wu Yun Hu Daiqi Ye Haihong Xu | 2022 | Journal of Rare Earths2022，40，11： | 2 |
| 11 | Construction of Cu-Ce interface for boosting toluene oxidation:Study of Cu-Ce interaction and intermediates identified by in situ DRIFTS显示文摘A facile hydrothermal method was applied to gain stably and highly efficient CuO-CeO_(2)(denoted as Cu1Ce2)catalyst for toluene oxidation.The changes of surface and inter properties on Cu1Ce2 were investigated comparing with pure CeO_(2)and pure CuO.The formation of Cu-Ce interface promotes the electron transfer between Cu and Ce through Cu^(2+)+Ce^(3+)↔Cu^(+)+Ce^(4+)and leads to high redox properties and mobility of oxygen species.Thus,the Cu1Ce2 catalyst makes up the shortcoming of CeO_(2)and CuO and achieved high catalytic performance with T_(50)=234°C and T_(99)=250°C(the temperature at which 50%and 90%C_(7)H_(8)conversion is obtained,respectively)for toluene oxidation.Different reaction steps and intermediates for toluene oxidation over Cu1Ce2,CeO_(2)and CuO were detected by in situ DRIFTS,the fast benzyl species conversion and preferential transformation of benzoates into carbonates through C=C breaking over Cu1Ce2 should accelerate the reaction. | Jiahui Lu Jinping Zhong Quanming Ren Jiaqi Li Linghe Song Shengpeng Mo Mingyuan Zhang Peirong Chen Mingli Fu Daiqi Ye | 2021 | Chinese Chemical Letters2021，32，11： | 2 |
| 12 | Volatile organic compounds concentration profiles and control strategy in container manufacturing industry:Case studies in China显示文摘Volatile organic compounds(VOCs),important precursors of ozone(O_(3))and fine particulate matter(PM_(2.5)),are the key to curb the momentum of O_(3)growth and further reducing PM_(2.5)in China.Container manufacturing industry is one of the major VOC emitters,and more than 96%containers of the world are produced in China,with the annual usage of coatings of over 200,000 tons in recent years.This is the first research on the emission characteristics of VOCs in Chinese container manufacturing industry,including concentration and ozone formation potential(OFP)of each species.The result shows that the largest amounts of VOCs are emitted during the pretreatment process,followed by the paint mixing process and primer painting process,and finally other sprays process.The average VOC concentrations in the workshops,the exhausts before treatment and the exhausts after treatment are ranging from 82.67–797.46,170–1,812.65,66.20–349.63 mg/m^(3),respectively.Benzenes,alcohols and ethers are main species,which contribute more than 90%OFP together.Based on the emission characteristics of VOCs and the technical feasibility,it is recommended to set the emission limit in standard of benzene to 1.0 mg/m^(3),toluene to 10 mg/m^(3),xylene to 20 mg/m^(3),benzenes to 40 mg/m^(3),alcohols and ethers to 50 mg/m^(3),and VOCs to 100 mg/m^(3).The study reports the industry emission characteristics and discusses the standard limits,which is a powerful support to promote VOCs emission reduction,and to promote the coordinated control of PM_(2.5)and O_(3)pollution. | Yunting Ke Ruiyuan Liu Xiaofang Chen Yang Feng Ping Gao Haomin Huang Liya Fan Daiqi Ye | 2021 | Journal of Environmental Sciences2021，33，6： | 2 |
| 13 | Toluene decom-position using a wire-plate dielectric barrier discharge reactorwith manganese oxide catalyst in situ显示文摘 | GUO Yufang YE Daiqi CHEN Kefu | 2006 | Journal of Molecu-lar Catalysis A:Chemical2006，245，12： | 1 |
| 14 | Toluene decomposition using a wire-plate dielectric barrier discharge reactor with manganese oxide catalyst in situ 显示文摘 | Guo Yufang Ye Daiqi Chen Kefu | 2006 | Journal of Molecular Catalysis A: Chemical2006，245，12： | 1 |
| 15 | Abate-ment of toluene in the plasma-driven catalysis:mecha-nism and reaction kinetics显示文摘 | HUANG Haibao YE Daiqi LEUNG D Y C | 2011 | IEEE Transactions onPlasma Science2011，39，1： | 1 |
| 16 | Byproducts and pathways of toluene destruction via plasma-catalysis 显示文摘 | Huang Haibao Ye Daiqi Dennis Y C Leung | 2011 | Journal of Molecular Catalysis A: Chemical2011，336，12： | 1 |
| 17 | Effect of oxygen mobility in the lattice of Au/TiO2 on formaldehyde oxidation显示文摘 | Dennis Leung Xianliang Fu Daiqi Ye Haibao Huang | 2012 | Kinetics and Catalysis2012，，2： | 1 |
| 18 | Historical industrial emissions of non-methane volatile organic compounds in China for the period of 1980–2010显示文摘 | Kaiqiong Qiu Lixian Yang Junmin Lin Peitao Wang Yi Yang Daiqi Ye Liming Wang | 2014 | Atmospheric Environment2014，，： | 1 |
| 19 | Combination of photocatalysis downstream the non-thermal plasma re- actor for oxidation of gas-phase toluene 显示文摘 | Huang Haibao Ye Daiqi | 2009 | Journal of Hazardous Materials2009，171，13： | 1 |
| 20 | Soot oxidation via CuO doped CeO2 catalysts prepared using coprecipitation and citrate acid complex-combustion synthesis显示文摘 | Fu Mingli Yue Xianghui Ye Daiqi | 2010 | Catalysts Today2010，，3： | 1 |
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