ORCID Profile
0000-0001-5922-1164
Current Organisations
Nanjing Tech University
,
CSIRO
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Publisher: Elsevier BV
Date: 09-2019
Publisher: Elsevier BV
Date: 02-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC04157B
Abstract: A mild synthetic protocol to access 2-ester pyrroles through Cu(OTf) 2 -catalysed carbene insertion/ester migration/cyclization of enaminones and α-diazo compounds is reported.
Publisher: American Chemical Society (ACS)
Date: 27-09-2022
Abstract: Electrochemical synthesis of polysubstituted sulfonated pyrazoles from enaminones and sulfonyl hydrazides was established under metal-free, exogenous-oxidant-free, and mild conditions. By judicious choice of different electrochemical reaction conditions,
Publisher: American Chemical Society (ACS)
Date: 08-09-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5CY00900F
Abstract: Sewage sludge-derived carbonaceous materials (SW) treated with different kinds of acids were used as catalysts for catalytic wet air oxidation (CWAO) of m -cresol.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9QO01413F
Abstract: Herein, both homogeneous and heterogeneous strategies were developed to access highly functionalized 3 H -1,2,4-triazines using Cu-catalyzed [4 + 2] annulation.
Publisher: American Chemical Society (ACS)
Date: 06-2023
Publisher: Elsevier BV
Date: 12-2015
Publisher: Informa UK Limited
Date: 07-2014
DOI: 10.1080/09593330.2014.931469
Abstract: Biohydrogen fermentation of dewatered sludge (DS) with sewage at ratios from 4:1 to 1:20 was investigated. Hydrothermal pretreatment of the sludge solution was performed to accelerate the organic release from the solid phase. The maximum hydrogen yield of 26.3 ± 0.5 mL H₂/g volatile solid (VS) was obtained at a 1:10 ratio. Although addition of zero valent iron (ZVI) to anaerobic system was not new, the study of dosing it to enhance the biohydrogen yield might be the first attempt. While Fe° plate slightly affected the hydrogen yield, Fe° powder improved the amount of hydrogen by 16% and shortened the lag time by 36%. The state of bacteria in the reactor added with ZVI powder was changed and the key enzyme activity was improved as well. Correspondingly, the mechanism of ZVI in accelerating the biofermentation process was also proposed. Our research provides a solution for the centralized treatment of DS in a city.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2OB01273A
Abstract: An electrochemical insertion reaction of diazo compounds into C–S and C–O bonds with electricity as the oxidant under metal- and ligand-free conditions is reported.
Publisher: Wiley
Date: 24-07-2023
Abstract: A copper‐catalyzed olefinic C( sp 2 )−H activation/carbene insertion/ester hydrolysis/cyclization sequence has been developed for the synthesis of substituted 2(5 H )‐furanones employing readily available enaminones and aryl diazo esters as substrates. This method features operationally simple and good functional group tolerance. The transformation could be scaled up to gram quantities and the obtained 2(5 H )‐furanone derivatives could be easily converted to a wide range of useful synthetic building blocks, indicative of the applicability of the synthetic strategy. Isotope labeling experiments demonstrated the ester group of diazo esters was hydrolyzed during the reaction.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA00858A
Abstract: Organic synthesis is used to investigate the degradation of m -cresol and the intermediates are identified by in situ NMR.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9GC03428E
Abstract: More economically and greener surface modified sewage sludge for carbene insertion of diazo compounds into O–H bond of phenols with good yields and high functional group tolerance.
Publisher: Informa UK Limited
Date: 07-05-2017
DOI: 10.1080/09593330.2017.1319422
Abstract: Calcium compounds have been known to be important for enhancing aggregation and dewaterability of activated sludge. In this study, the effect of calcium compounds (CaO, Ca(OH)
Publisher: Springer Science and Business Media LLC
Date: 28-06-2018
DOI: 10.1007/S11356-018-2607-9
Abstract: Sludge-derived carbons (SCs) were modified by different acids and used as electrocatalyst for electrochemical oxidation degradation of acetophenone. The results showed that SC treated with phosphoric acid (H
Publisher: Elsevier BV
Date: 2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3QO00458A
Abstract: Efficient synthetic protocols for borylation of haloarenes and arylation of heteroarenes using nonmetal-doped CDots as metal-free photocatalysts under visible-light irradiation at room temperature are reported.
Publisher: Informa UK Limited
Date: 23-08-2018
DOI: 10.1080/09593330.2018.1512657
Abstract: Sulfamethoxazole (SMX) is a commonly used antibiotic for both human and animals. The frequent detection of SMX in natural water bodies and sediment has become an issue of great environmental concern due to its potential risk to induce antibiotic resistance in pathogenic bacteria. In the present work, the catalytic wet peroxide oxidation (CWPO) was investigated to remove SMX with sludge-derived carbon (SC) as a cheap alternative catalyst. Different acids were used to modify SC. It was found that SC modified with sulphuric acid (SC-H
Publisher: American Chemical Society (ACS)
Date: 10-01-2020
Publisher: American Chemical Society (ACS)
Date: 02-01-2023
Publisher: No publisher found
Date: 2019
DOI: 10.1016/J.CHEMOSPHERE.2019.03.125
Abstract: Sulfamethazine (SMZ), a kind of sulfonamide antibiotics, can exist for a long periods of time and has been widely detected in the environment, which could pose a potential health threat to human beings. In this study, sludge-derived carbon (SC) catalyst was modified and applied to degrade SMZ during catalytic oxidation process. Degradation products and possible transformation pathways were investigated based on data of GC-MS. The toxicity evolution of SMZ degradation after catalytic oxidation process was tested with zebrafish and microbial degradation respirometer. As a consequence, SC modified with nitric acid (SCHNO
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0GC00317D
Abstract: A green, mild and efficient synthesis of diarylmethines using sewage sludge-derived carbonaceous materials (SW) by perchloric acid catalyzed coupling reactions between diazo compounds and arylboronic acids was developed.
Publisher: MDPI AG
Date: 12-09-2018
DOI: 10.3390/HORTICULTURAE4030027
Abstract: Water use and the cost of water are key factors when considering the net value of urban agriculture (UA). This systematic review critically evaluates past and recent UA yield research from the perspective of water use efficiency. A systematic literature search was conducted using the databases Scopus, ProQuest Agriculture and Environment, and Web of Science for references from 1975 to 2018, with 25 articles meeting the inclusion criteria. Of these, only five articles had actively collected UA water use data, all on purpose-built experimental gardens. Considering the scarcity of UA water use efficiency and water measurement literature, South Australia is presented as a case study to demonstrate the considerable ersity of water pricing, water sources and irrigation methods available to urban food growers. The practical challenges of garden placement and the wide variety of cultivation techniques, water sources and irrigation methods are reviewed. Four equations to calculate the water use efficiency (WUE) of UA are proposed and demonstrated. Collection of additional UA water use data would support more robust evaluations of the water use efficiency and economic implications of different cultivation techniques. Further work in this field will enable a realistic understanding of the current and future contribution of UA to our society.
Publisher: Informa UK Limited
Date: 28-07-2015
DOI: 10.1080/09593330.2015.1065006
Abstract: In this study, four sewage-sludge-derived carbonaceous materials (SWs) were evaluated for their catalytic wet hydrogen peroxide oxidation (CWPO) performance of m-cresol in batch reactor and continuous reactor, respectively. The SWs were produced by carbonization (SW) carbonization with the addition of CaO (CaO-SW) HNO3 pretreatment (HNO3-SW) and steam activation (Activated-SW). The properties of SW catalysts were assessed by thermogravimetric analysis, Brunauer-Emmett-Teller, Fourier Transform Infrared Spectroscopy, X-ray Fluorescence, Scanning electron microscopy, energy dispersive X-ray analysis and zeta potential. The results showed that SW treated by HNO3 (HNO3-SW) had a high conversion of m-cresol in batch reactor and continuous reactor, respectively. Under the conditions of batch reaction (Cm-cresol = 100 mg L(-1), CH2O2 = 15.7 mmol L(-1), initial pH=7.0, 0.5 g L(-1) catalyst, 80°C, 180 min adsorption and 210 min oxidation), the conversion of m-cresol reached 100% and total organic carbon removal was 67.1%. It had a high catalytic activity and stability on the treatment of m-cresol in CWPO for more than 1100 h. Furthermore, a possible reaction mechanism for the oxidation of m-cresol to 2-methyl-p-benzoquinone by CWPO was proposed.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0QO01401J
Abstract: The economical and accessible CF 3 SO 3 H successfully catalyzed homogeneous O–H and S–H bond insertion reactions between hydroxyl compounds, thiols and diazo compounds under metal- and ligand-free conditions.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4CY01455C
Abstract: For the first time, Ru/ x TiZrO 4 catalysts were evaluated in the catalytic wet air oxidation (CWAO) reaction of isothiazolone.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA04250K
Abstract: Toxicology effects of gabapentin on early development of zebrafish and its antioxidant system.
Publisher: Elsevier BV
Date: 03-2019
DOI: 10.1016/J.SCITOTENV.2018.11.156
Abstract: In this study, heterogeneous Fenton-like degradation of ofloxacin (OFX) was investigated by sludge derived carbon (SC). The effects of SC catalyst, temperature and pH on the efficiency of ofloxacin degradation were investigated. SC treated with sulfuric acid (SC-H
Publisher: Springer Science and Business Media LLC
Date: 07-09-2014
DOI: 10.1007/S11356-014-3514-3
Abstract: The increasing sludge generated in wastewater treatment plants poses a threat to the environment. Based on the traditional processes, sludge dewatered by usual methods was further dewatered by hydraulic compression and the filtrate released was treated by anaerobic fermentation. The difficulties in sludge dewatering were associated with the existence of sludge flocs or colloidal materials. A suitable CaO dosage of 125 mg/g dry sludge (DS) could further decrease the moisture content of sludge from 82.4 to 50.9 %. The filtrate from the dewatering procedure was a potential substrate for biohydrogen production. Adding zero-valent iron (ZVI) into the anaerobic system improved the biohydrogen yield by 20 %, and the COD removal rate was lifted by 10 % as well. Meanwhile, the sludge morphology and microbial community were altered. The novel method could greatly reduce the sludge volume and successfully treated filtrate along with the conversion of organics into biohydrogen.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0OB01958E
Abstract: The switch in selectivity for the synthesis of 1,4-dihydropyridazines and pyridazines is attributed to the judicious choice of different reaction temperatures.
Location: Australia
No related grants have been discovered for Yang Yu.