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  1. Article: Degradation of oxytetracycline by magnetic MOFs heterojunction photocatalyst with persulfate: high stability and wide range

    Zhang, Zhuo / Du, Chunyan / Zhang, Yin / Yu, Guanlong / Xiong, Ying / Zhou, Lu / Liu, Yuanyuan / Chi, Tianying / Wang, Guoliang / Su, Yihai / Lv, Yinchu / Zhu, Hao

    Environmental science and pollution research. 2022 Apr., v. 29, no. 20

    2022  

    Abstract: Photocatalysis with persulfate (PS) is an effective method for the degradation of degrading organic pollutants. In this study, Fe₃O₄/MIL-101(Fe), a magnetic heterojunction photocatalyst, was produced using a hydrothermal method. The material coupled with ...

    Abstract Photocatalysis with persulfate (PS) is an effective method for the degradation of degrading organic pollutants. In this study, Fe₃O₄/MIL-101(Fe), a magnetic heterojunction photocatalyst, was produced using a hydrothermal method. The material coupled with PS exhibited excellent removal efficiency for oxytetracycline (OTC) (87.1%, 1 h). And it has a wide range of applications, with good removal efficiency for OTC concentrations of 30 to 70 mg/L and pH values of 3 to 9. •SO₄⁻ and •OH played a major role in the OTC removal reaction and there was an Fe(III)/Fe(II) cycle during the reaction. With excellent stability and recoverability, the OTC removal efficiency decreased by only 4.29% after four cycles, and the Fe leaching did not exceed 0.035 mg/L per cycle. This study provides significant insights into the removal of organic pollutants from water bodies.
    Keywords hot water treatment ; magnetism ; oxytetracycline ; pH ; photocatalysis ; photocatalysts ; pollution ; research
    Language English
    Dates of publication 2022-04
    Size p. 30019-30029.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-17971-9
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  2. Article: Highly efficient removal of oxytetracycline using activated magnetic MIL-101(Fe)/γ-Fe2O3 heterojunction catalyst

    Du, Chunyan / Zhang, Yin / Zhang, Zhuo / Song, Demin / Cao, Jiao / Yu, Hanbo / Yu, Guanlong / Zhou, Lu / Su, Yihai / Lv, Yinchu / Zhu, Hao / Deng, Fangfang

    Journal of environmental management. 2022 May 13,

    2022  

    Abstract: A novel magnetic nanocomposite MIL-101(Fe)/γ-Fe₂O₃ was synthesized by hydrothermal method. The physical structure and chemical property of the as-obtained magnetic nanocomposite was characterized. The ability of MIL-101(Fe)/γ-Fe₂O₃ to promote photo- ... ...

    Abstract A novel magnetic nanocomposite MIL-101(Fe)/γ-Fe₂O₃ was synthesized by hydrothermal method. The physical structure and chemical property of the as-obtained magnetic nanocomposite was characterized. The ability of MIL-101(Fe)/γ-Fe₂O₃ to promote photo-assisted peroxydisulfate (PDS) activation was investigated by using oxytetracycline (OTC) as the target pollutant. The results showed that the composite with a FeCl₃•6H₂O: γ-Fe₂O₃ mass ratio of 10:1 exhibited the highest degradation efficiency (up to 91.2%). Influencing factors such as pH, catalyst dosage, PDS concentration and OTC concentration on the catalytic performance of MIL-101(Fe)/γ-Fe₂O₃ were also investigated to determine the optimum conditions. More importantly, the MIL-101(Fe)/γ-Fe₂O₃ can be magnetically recovered and reused for 4 cycles. Based on radical quenching and electron spin resonance (ESR), the possible degradation mechanism of OTC in photo-assisted PDS activation (PPA) system was proposed. This research provided novel insights for the design and preparation of a new type of magnetic Fe-MOFs for environmental remediation.
    Keywords catalysts ; catalytic activity ; electron paramagnetic resonance spectroscopy ; hot water treatment ; magnetism ; nanocomposites ; oxytetracycline ; pH ; pollutants ; remediation
    Language English
    Dates of publication 2022-0513
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2022.115327
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  3. Article: Construction of Z-scheme g-C3N4 / MnO2 /GO ternary photocatalyst with enhanced photodegradation ability of tetracycline hydrochloride under visible light radiation

    Du, Chunyan / Zhang, Zhuo / Tan, Shiyang / Yu, Guanlong / Chen, Hong / Zhou, Lu / Yu, Lie / Su, Yihai / Zhang, Yin / Deng, Fangfang / Wang, Shitao

    Environmental research. 2021 May 24,

    2021  

    Abstract: A facile wet-chemical method was adopted to synthesize g-C₃N₄/MnO₂/GO heterojunction photocatalyst for visible-light photodegradation of tetracycline hydrochloride (TC). The addition of MnO₂ and GO increased the absorption of visible light and the ... ...

    Abstract A facile wet-chemical method was adopted to synthesize g-C₃N₄/MnO₂/GO heterojunction photocatalyst for visible-light photodegradation of tetracycline hydrochloride (TC). The addition of MnO₂ and GO increased the absorption of visible light and the specific surface area of the photocatalyst. The results of photoluminescence, electrochemical impedance spectroscopy, and photocurrent response indicated that CMG-10 had the lowest electron–hole recombination probability, which was beneficial for the photocatalytic reaction. The ternary photocatalyst exhibited enhanced photoelectric performance and superior photocatalytic activity with 91.4% removal of TC (10 mg/L) under a mere 60 min visible light illumination, which showed enhanced photocatalytic degradation when compared with binary (CM, 77.95%; CG, 78.83%) and single (C₃N₄, 55.5%; MnO₂, 36.41%) photocatalysts. A pH of 6 was optimal for the CMG-10 photocatalytic degradation of TC, and the optimal photocatalyst dosage was 0.5 g/L. Common coexisting ions influenced the removal of TC by influencing the production of active species. The catalyst is stable and reusable with only a 10% reduction in removal efficiency after four cycles. According to the active species analysis, the Z-scheme mechanism was a charge transfer behavior in the composite photocatalyst, which could prevent the recombination of photogenerated carriers. This study presents a photocatalytic approach to the effective removal of TC from water bodies, which provides practical implications to advance the use of photocatalytic technology in the restoration of aqueous environmental pollution.
    Keywords absorption ; dielectric spectroscopy ; electric current ; lighting ; manganese dioxide ; pH ; photocatalysis ; photocatalysts ; photoluminescence ; photolysis ; pollution ; probability ; research ; surface area ; tetracycline
    Language English
    Dates of publication 2021-0524
    Publishing place Elsevier Inc.
    Document type Article
    Note NAL-AP-2-clean ; Pre-press version
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2021.111427
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    Zs.A 726: Show issues Location:
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  4. Article: Construction of Z-scheme g-C3N4 / MnO2 /GO ternary photocatalyst with enhanced photodegradation ability of tetracycline hydrochloride under visible light radiation

    Du, Chunyan / Zhang, Zhuo / Tan, Shiyang / Yu, Guanlong / Chen, Hong / Zhou, Lu / Yu, Lie / Su, Yihai / Zhang, Yin / Deng, Fangfang / Wang, Shitao

    Environmental research. 2021 Sept., v. 200

    2021  

    Abstract: A facile wet-chemical method was adopted to synthesize g-C₃N₄/MnO₂/GO heterojunction photocatalyst for visible-light photodegradation of tetracycline hydrochloride (TC). The addition of MnO₂ and GO increased the absorption of visible light and the ... ...

    Abstract A facile wet-chemical method was adopted to synthesize g-C₃N₄/MnO₂/GO heterojunction photocatalyst for visible-light photodegradation of tetracycline hydrochloride (TC). The addition of MnO₂ and GO increased the absorption of visible light and the specific surface area of the photocatalyst. The results of photoluminescence, electrochemical impedance spectroscopy, and photocurrent response indicated that CMG-10 had the lowest electron–hole recombination probability, which was beneficial for the photocatalytic reaction. The ternary photocatalyst exhibited enhanced photoelectric performance and superior photocatalytic activity with 91.4% removal of TC (10 mg/L) under a mere 60 min visible light illumination, which showed enhanced photocatalytic degradation when compared with binary (CM, 77.95%; CG, 78.83%) and single (C₃N₄, 55.5%; MnO₂, 36.41%) photocatalysts. A pH of 6 was optimal for the CMG-10 photocatalytic degradation of TC, and the optimal photocatalyst dosage was 0.5 g/L. Common coexisting ions influenced the removal of TC by influencing the production of active species. The catalyst is stable and reusable with only a 10% reduction in removal efficiency after four cycles. According to the active species analysis, the Z-scheme mechanism was a charge transfer behavior in the composite photocatalyst, which could prevent the recombination of photogenerated carriers. This study presents a photocatalytic approach to the effective removal of TC from water bodies, which provides practical implications to advance the use of photocatalytic technology in the restoration of aqueous environmental pollution.
    Keywords absorption ; dielectric spectroscopy ; electric current ; lighting ; manganese dioxide ; pH ; photocatalysis ; photocatalysts ; photoluminescence ; photolysis ; pollution ; probability ; research ; surface area ; tetracycline
    Language English
    Dates of publication 2021-09
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2021.111427
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  5. Article ; Online: Degradation of oxytetracycline by magnetic MOFs heterojunction photocatalyst with persulfate: high stability and wide range.

    Zhang, Zhuo / Du, Chunyan / Zhang, Yin / Yu, Guanlong / Xiong, Ying / Zhou, Lu / Liu, Yuanyuan / Chi, Tianying / Wang, Guoliang / Su, Yihai / Lv, Yinchu / Zhu, Hao

    Environmental science and pollution research international

    2022  Volume 29, Issue 20, Page(s) 30019–30029

    Abstract: Photocatalysis with persulfate (PS) is an effective method for the degradation of degrading organic pollutants. In this study, ... ...

    Abstract Photocatalysis with persulfate (PS) is an effective method for the degradation of degrading organic pollutants. In this study, Fe
    MeSH term(s) Catalysis ; Environmental Pollutants ; Ferric Compounds ; Light ; Oxytetracycline ; Water Pollutants, Chemical/analysis
    Chemical Substances Environmental Pollutants ; Ferric Compounds ; Water Pollutants, Chemical ; Oxytetracycline (X20I9EN955)
    Language English
    Publishing date 2022-01-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-17971-9
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  6. Article ; Online: Highly efficient removal of oxytetracycline using activated magnetic MIL-101(Fe)/γ-Fe

    Du, Chunyan / Zhang, Yin / Zhang, Zhuo / Song, Demin / Cao, Jiao / Yu, Hanbo / Yu, Guanlong / Zhou, Lu / Su, Yihai / Lv, Yinchu / Zhu, Hao / Deng, Fangfang

    Journal of environmental management

    2022  Volume 317, Page(s) 115327

    Abstract: A novel magnetic nanocomposite MIL-101(Fe)/γ- ... ...

    Abstract A novel magnetic nanocomposite MIL-101(Fe)/γ-Fe
    MeSH term(s) Catalysis ; Magnetic Phenomena ; Metal-Organic Frameworks/chemistry ; Oxytetracycline
    Chemical Substances MIL-101 ; Metal-Organic Frameworks ; Oxytetracycline (X20I9EN955)
    Language English
    Publishing date 2022-05-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2022.115327
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  7. Article ; Online: Construction of Z-scheme g-C

    Du, Chunyan / Zhang, Zhuo / Tan, Shiyang / Yu, Guanlong / Chen, Hong / Zhou, Lu / Yu, Lie / Su, Yihai / Zhang, Yin / Deng, Fangfang / Wang, Shitao

    Environmental research

    2021  Volume 200, Page(s) 111427

    Abstract: A facile wet-chemical method was adopted to synthesize g- ... ...

    Abstract A facile wet-chemical method was adopted to synthesize g-C
    MeSH term(s) Light ; Manganese Compounds ; Oxides ; Photolysis ; Tetracycline
    Chemical Substances Manganese Compounds ; Oxides ; Tetracycline (F8VB5M810T)
    Language English
    Publishing date 2021-05-29
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2021.111427
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    ab Jg. 2022: Lesesaal (EG)

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  8. Article ; Online: A review of metal organic framework (MOFs)-based materials for antibiotics removal via adsorption and photocatalysis.

    Du, Chunyan / Zhang, Zhuo / Yu, Guanlong / Wu, Haipeng / Chen, Hong / Zhou, Lu / Zhang, Yin / Su, Yihai / Tan, Shiyang / Yang, Lu / Song, Jiahao / Wang, Shitao

    Chemosphere

    2021  Volume 272, Page(s) 129501

    Abstract: Antibiotic abuse has led to serious water pollution and severe harm to human health; therefore, there is an urgent need for antibiotic removal from water sources. Adsorption and photodegradation are two ideal water treatment methods because they are ... ...

    Abstract Antibiotic abuse has led to serious water pollution and severe harm to human health; therefore, there is an urgent need for antibiotic removal from water sources. Adsorption and photodegradation are two ideal water treatment methods because they are cheap, simple to operate, and reusable. Metal organic frameworks (MOFs) are excellent adsorbents and photocatalysts because of their high porosity, adaptability, and good crystal form. The aim of this study is to suggest ways to overcome the limitations of adsorption and photocatalysis treatment methods by reviewing previous applications of MOFs to antibiotic adsorption and photocatalysis. The different factors influencing these processes are also discussed, as well as the various adsorption and photocatalysis mechanisms. This study provides a valuable resource for researchers intending to use MOFs to remove antibiotics from water bodies.
    MeSH term(s) Adsorption ; Anti-Bacterial Agents ; Humans ; Metal-Organic Frameworks ; Water Pollutants, Chemical/analysis ; Water Purification
    Chemical Substances Anti-Bacterial Agents ; Metal-Organic Frameworks ; Water Pollutants, Chemical
    Language English
    Publishing date 2021-01-06
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2020.129501
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    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  9. Article ; Online: Efficient dehydration of 6-gingerol to 6-shogaol catalyzed by an acidic ionic liquid under ultrasound irradiation.

    Kou, Xingran / Li, Xingze / Rahman, Md Ramim Tanver / Yan, Minming / Huang, Huanhuan / Wang, Hongxin / Su, Yihai

    Food chemistry

    2016  Volume 215, Page(s) 193–199

    Abstract: 6-Gingerol and 6-shogaol are the main bioactive compounds in ginger. Although 6-shogaol has more and better bioactivities than its precursor 6-gingerol, the low content of 6-shogaol in ginger restricts its bioactive effects in functional foods. The ... ...

    Abstract 6-Gingerol and 6-shogaol are the main bioactive compounds in ginger. Although 6-shogaol has more and better bioactivities than its precursor 6-gingerol, the low content of 6-shogaol in ginger restricts its bioactive effects in functional foods. The traditional preparation methods of 6-shogaol are defective because of the environmental hazards and low efficiency of the processes. In this study, an efficient, easy and eco-friendly dehydration conversion of 6-gingerol to 6-shogaol is presented using an acidic ionic liquid 1-butyl-3-methylimidazolium hydrosulfate ([Bmim]HSO4) under ultrasound irradiation. The key parameters, including reaction temperature, reaction time, mass ratio of catalyst to substrate and ultrasonic power in each reaction process, were investigated. The yield of 6-shogaol reached as high as 97.16% under optimized condition. The catalyst could be separated from the reaction mixture and reused five times with only a slight loss of activity.
    MeSH term(s) Catalysis ; Catechols/metabolism ; Dehydration ; Fatty Alcohols/metabolism ; Zingiber officinale/chemistry ; Imidazoles/metabolism ; Ionic Liquids/chemistry ; Plant Extracts/chemistry ; Plant Extracts/metabolism ; Temperature ; Ultrasonics
    Chemical Substances 1-butyl-3-methylimidazolium hydrosulfate ; Catechols ; Fatty Alcohols ; Imidazoles ; Ionic Liquids ; Plant Extracts ; oleoresins ; shogaol (83DNB5FIRF) ; gingerol (925QK2Z900)
    Language English
    Publishing date 2016-07-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2016.07.106
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