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| 1 | Impact of pre-oxidation on the formation of byproducts in algae-laden water disinfection:Insights from fluorescent and molecular weight显示文摘Pre-oxidation has been reported to be an effective way to remove algal cells in water, but the released algal organic matter (AOM) could be oxidized and lead to the increment in disinfection by-product (DBP) formation. The relationship between pre-oxidation and AOM-derived DBP formation needs to be approached more precisely. This study compared the impact of four pre-oxidants, ozone (O), chlorine dioxide (ClO), potassium permanganate(KMnO) and sodium hypochlorite (NaClO), on the formation of nitrogenous (N-) and carbonaceous (C-) DBPs in AOM chlorination. The characterization (fluorescent properties,molecular weight distribution and amino acids concentration) on AOM samples showed that the characterization properties variations after pre-oxidation were highly dependent on the oxidizing ability of oxidants. The disinfection experiments showed that Oincreased DBP formation most significantly, which was consistent with the result of characterization properties variations. Then canonical correspondent analysis (CCA) and Pearson’s correlation analysis were conducted based on the characterization data and DBP formation. CCA indicated that C-DBPs formation was highly dependent on fluorescent data. The formation of haloacetic acids (HAAs) had a positive correlation with aromatic protein-like component while trichloromethane (TCM) had a positive correlation with fulvic acid-like component.Pearson’s correlation analysis showed that low molecular weight fractions were favorable to form N-DBPs. Therefore, characterization data could provide the advantages in the control of DBP formation, which further revealed that KMnOand ClOwere better options for removing algal cells as well as limiting DBP formation. | Da Sheng Lingjun Bu Shumin Zhu Yangtao Wu Jue Wang Nan Li Shiqing Zhou | 2022 | Journal of Environmental Sciences2022，34，7： | 2 |
| 2 | Analysing complete genome sequence of swine hepatitis E virus (HEV), strain CHN-XJ-SW13 isolated from Xinjiang, China: Putative host range, and disease severity determinants in HEV显示文摘 | Hongwei Fu Ling Wang Yonghong Zhu Jiabao Geng Lingjun Li Xiaojuan Wang Qiuning Bu Hui Zhuang | 2011 | Infection Genetics and Evolution2011，，3： | 1 |
| 3 | Constructing bifunctional Co/MoC@N-C catalyst via an in-situ encapsulation strategy for efficient oxygen electrocatalysis显示文摘The large-scale application of Zn-air battery requires the development of efficient,low-cost,and stable bifunctional electrocatalysts for the oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).Herein,an electrocatalyst of a Co/Mo C-nanoparticles embedded N-doped carbon(Co/Mo C@N-C)was prepared via the in-situ encapsulation of Co_(2)(CO)_(8)and Mo(CO)6 in ZIF-8 using ball-milling,followed by pyrolysis under an Ar atmosphere.When used as a bifunctional electrocatalyst,the as-prepared Co/Mo C@N-C showed an ORR half-wave potential of 0.824 V in an alkaline medium and an overpotential of only 290 m V for the OER at 10 m A cm^(-2),which was 70 m V lower than Ru O_(2).The Co/Mo C@N-C was also evaluated as a cathode in a solid-state Zn-air battery and delivered a higher peak discharge power density and better cycling stability(over 1600 min)than Pt/C-Ru O_(2).Most importantly,our work provides a new strategy to prepare bifunctional catalysts and promotes their applications in the energy conversion field. | Hui Huang Lingjun Kong Ming Liu Jie He Wei Shuang Yunhua Xu Xian-He Bu | 2021 | Journal of Energy Chemistry2021，30，8： | 1 |
| 4 | Controlled synthesis of core-shell Fe_(2)O_(3)@N-C with ultralong cycle life for lithium-ion batteries显示文摘Development of low-cost electrode materials with long cycle life and high volumetric capacity is im-portant for large-scale applications of lithium-ion batteries(LIBs).Here,an electrode made from Fe_(2)O_(3) encapsulated with N-doped carbon(Fe_(2)O_(3)@N-C)via ZIF-8 coating and carbonization process is reported.A cavity was generated between the Fe_(2)O_(3)and N-C material during the carbonization process that is conducive to alleviating the volume expansion of Fe_(2)O_(3).As a result,the Fe_(2)O_(3)@N-C composite exhibits a high specific capacity(1064 mAh/g at 0.1 A/g)and cycle stability(803.6 mAh/g at 1.0 A/g after 1100 cycles)when used as the LIB anode.In addition,the influence of carbonization under air on the LIB per-formance was investigated by controllably changing the crystal phase of Fe_(2)O_(3)and the thickness of the carbon layer.This work provides a new method for the design and fabrication of yolk-shell composite electrodes for LIBs and other applications. | Hui Huang Lingjun Kong Wei Shuang Wei Xu Jie He Xian-He Bu | 2022 | Chinese Chemical Letters2022，33，2： | 1 |
| 5 | Insight into the mechanisms of trichloronitromethane formation by vacuum ultraviolet: QSAR model and FTICR-MS analysis显示文摘Vacuum ultraviolet(VUV) photolysis is recognized as an environmental-friendly treatment process. Nitrate(NO-3) and natural organic matter(NOM) are widely present in water source.We investigated trichloronitromethane(TCNM) formation during chlorination after VUV photolysis, because TCNM is an unregulated highly toxic disinfection byproduct. In this study:(1) we found reactive nitrogen species that is generated under VUV photolysis of NO-3react with organic matter to form nitrogen-containing compounds and subsequently form TCNM during chlorination;(2) we found the mere presence of 0.1 mmol/L NO-3can result in the formation of up to 63.96 μg/L TCNM;(3) we found the changes in pH(6.0-8.0), chloride(1-4 mmol/L), and bicarbonate(1-4 mmol/L) cannot effectively diminish TCNM formation;and,(4) we established the quantitative structure-activity relationship(QSAR) model,which indicated a linear relationship between TCNM formation and the Hammett constant(σ) of model compounds;and,(5) we characterized TCNM precursors in water matrix after VUV photolysis and found 1161 much more nitrogen-containing compounds with higher aromaticity were generated. Overall, this study indicates more attention should be paid to reducing the formation risk of TCNM when applying VUV photolysis process at scale. | Xiaojun Chen Yangtao Wu Weiqiu Zhang Lingjun Bu Shumin Zhu Da Sheng Shiqing Zhou John C.Crittenden | 2023 | Journal of Environmental Sciences2023，，3： | 0 |
| 6 | Deciphering of advantageous electrocatalytic water oxidation behavior of metal-organic framework in alkaline media显示文摘Carboxylic acid-based metal-organic frameworks(MOFs)are normally passed for the“pre-catalysts”for oxygen evolution reaction(OER)due to the hydroxides constructed in-situ during its alkaline hydrolysis process(AHP)in lye.Whereas,it remains a mystery that they show advantageous activity over prototypical hydroxides when they are directly acted as OER catalysts.Herein,we propose for the first time that the steric hindrance effect of Nafion can induce enhanced catalytic activity of such MOFs.Different from conventional catalysts without AHP,the Nafion with 3D structure weakens the AHP of Co-MOF nanoribbons,thus forming small size and low crystallinity species(cobalt hydroxide)with more active sites.And the existence of Nafion also optimizes its electronic structure,which is confirmed by transmission electron microscopy(TEM),in-situ UV absorption spectra,in-situ Raman spectroscopy and so on.Compared with Co-MOF-K obtained by directly immersing the Co-MOF nanoribbons in 1.0 M KOH,the Co-MOF-NK obtained by AHP of Co-MOF mixed with Nafion shows better catalytic activity.Based on the above inspiration,we realized the low overpotential of 268 mV at 10 mA·cm^(−2) by preparing CoFe-MOF-NK.This work provides a new understanding of the structural reconstruction of MOFs in the field of electrocatalysis. | Ming Liu Lingjun Kong Xuemin Wang Jie He Jijie Zhang Jian Zhu Xian-He Bu | 2021 | Nano Research2021，14，12： | 0 |
| 7 | Assessment of solar-assisted electrooxidation of bisphenol AF and bisphenol A on boron-doped diamond electrodes显示文摘Bisphenol(BP)analogues in wastewater effluent and groundwater pose a potential threat to human health due to their ability to disrupt steroidogenesis.A new solar-assisted electrochemical process(SECP)was developed and evaluated for the degradation of BP analogues.The effects of quenchers,current density,initial pH,supporting electrolyte,and aqueous matrix on the removal kinetics of bisphenol AF(BPAF)and bisphenol A(BPA)were investigated.The kinetic constants of BPAF,BPA,and bisphenol S(BPS)in the SECP with irradiation intensity of 500 mW cm^(-2) were 0.017±0.002 min^(-1),0.022±0.002 min^(-1),and 0.012±0.001 min^(-1),respectively.The changes in the degradation rates of BPAF,BPA,and BPS in the presence of quenchers indicated the relative contribution of hydroxyl radical(·OH)oxidation,anodic electrolysis,and singlet(^(1)O_(2))oxygenation in the degradation of BPs in the SECP.The enhanced rate of generation of ·OH and ^(1)O_(2) was observed in the SECP compared with those in the conventional electrochemical system.The identification of the transformation products(TPs)of BPAF demonstrated that hydroxylation,ring cleavage,b-scission,and defluorination were the major processes during the oxidation in the SECP.The conversion to fluoride ions(76%)and mineralization of total organic carbon(72%)in the SECP indicated further degradation of TPs.The results from this study improved our understanding of the degradation of BP analogues in the electrooxidation irradiated by solar light and help to establish the application potential of the SECP for the effective degradation of emerging contaminants in wastewater. | Jing Ding Lingjun Bu Bingxin Cui Guanshu Zhao Qingwei Gao Liangliang Wei Qingliang Zhao Dionysios D.Dionysiou | 2020 | Environmental Science and Ecotechnology2020，，3： | 0 |
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