Guifeng Li

ORCID: 0000-0001-7729-210X
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About
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Research Areas
  • Wastewater Treatment and Nitrogen Removal
  • Photochemistry and Electron Transfer Studies
  • Membrane Separation Technologies
  • Water Treatment and Disinfection
  • Physiological and biochemical adaptations
  • Electrocatalysts for Energy Conversion
  • Microplastics and Plastic Pollution
  • Advanced Photocatalysis Techniques
  • Fish Ecology and Management Studies
  • Aquaculture disease management and microbiota
  • Toxic Organic Pollutants Impact
  • Asymmetric Hydrogenation and Catalysis
  • Light effects on plants
  • Copper-based nanomaterials and applications
  • Constructed Wetlands for Wastewater Treatment
  • Ideological and Political Education
  • Microbial Community Ecology and Physiology
  • Gut microbiota and health
  • Per- and polyfluoroalkyl substances research
  • ZnO doping and properties
  • CO2 Reduction Techniques and Catalysts
  • Aquaculture Nutrition and Growth
  • Catalytic Cross-Coupling Reactions
  • Safety and Risk Management
  • Environmental DNA in Biodiversity Studies

Harbin Institute of Technology
2023-2024

Tongji University
2024

Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2021-2023

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
2021-2023

Hangzhou Normal University
2019-2022

Sun Yat-sen University
2006-2021

John Wiley & Sons (United States)
2020

Hudson Institute
2020

Czech Academy of Sciences, Institute of Microbiology
2012

Nanjing Agricultural University
2011

Recycling of homogeneous catalysts could be achieved by using magnetic nanoparticles and solid-phase beads, but nanoparticle-supported catalysis proceeded much faster than its counterpart on resins.

10.1039/b505424a article EN Chemical Communications 2005-01-01

The ban/elimination of legacy per- and polyfluoroalkyl substances (PFASs) has led to a dramatic increase in the production use various emerging PFASs over past decade. However, trophodynamics many aquatic food webs remain poorly understood. In this study, samples seawaters marine organisms including 15 fish species, 21 crustacean two cetacean species were collected from northern South China Sea (SCS) investigate trophic biomagnification potential PFASs. Bis(trifluoromethylsulfonyl)imide was...

10.1021/acs.est.3c00374 article EN cc-by-nc-nd Environmental Science & Technology 2023-05-23

Antibiotics are widely found in nitrogen-containing wastewater, which may affect the operation stability of anaerobic ammonium oxidation (anammox)-based biological treatment systems. Extracellular polymeric substances (EPSs) anammox sludge play a pivotal role combining with antibiotics; however, exact and how structure leading component EPSs (i.e., extracellular proteins) changes under antibiotic stress remain to be elucidated. Here, interaction between sulfamethoxazole proteins was...

10.1021/acs.est.1c05203 article EN Environmental Science & Technology 2021-12-10

The implementation of mainstream anammox has gained increasing attention. In this study, the feasibility using sidestream granules to start up reactors was investigated by comparing two switching strategies. A maximum nitrogen removal potential 3.6 ± 0.2 kg N m–3 d–1 obtained for reactor after direct conditions (70 mg TN L–1, 15 °C). Nevertheless, preacclimatized 25 °C (Ma) exhibited a higher 7.0 0.3 at °C, which is highest volumetric rate date. Candidatus Kuenenia stuttgartiensis identified...

10.1021/acs.est.0c01469 article EN Environmental Science & Technology 2020-09-24

This paper describes a study of excited-state properties naphthalimide (NI) and four 4-substituted derivatives: 4-chloronaphthalimide (Cl-NI), 4-methylthionaphthalimide (MeS-NI), 4-nitronaphthalimide (O(2)N-NI), 4-(N,N-dimethylaminonaphthalimide (Me(2)N-NI). Steady-state absorption fluorescence spectra were collected in solvents varying polarity to determine the character NI derivatives. Furthermore, dynamics studied using femtosecond transient spectroscopy. The experimental findings...

10.1021/jp901982r article EN The Journal of Physical Chemistry A 2009-05-15

The pH dependent behavior of two flavin cofactors, flavin-adenine dinucleotide (FAD) and mononucleotide (FMN), has been characterized using femtosecond transient absorption spectroscopy for the first time. excited state was in three states protonation (Fl−, Fl, FlH+). We found that Fl Fl− exhibit same but lifetime is much shorter than Fl. spectrum FlH+ significantly different from Fl−, suggesting electronic properties chromophore become appreciably modified by protonation. further studied...

10.1021/jp7117218 article EN The Journal of Physical Chemistry A 2008-04-24

Hydrogen bonding on the interface and in bulk of a poly(2-methoxyethyl acrylate) (PMEA) thin film has been investigated by sum frequency generation, infrared reflection absorption, Raman scattering measurements different kinds solutions containing hydrogen-bonding donators. These results indicate that majority carbonyl groups PMEA surface are hydrogen-bonded with water or ethanol molecules, while is still dominated free group.

10.1021/ja046183x article EN Journal of the American Chemical Society 2004-09-10

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTCross-linking the Linear Polymeric Chains in ATRP Synthesis of Iron Oxide/Polystyrene Core/Shell NanoparticlesGuifeng Li, Jinda Fan, Rong Jiang, and Yong GaoView Author Information Department Chemistry Biochemistry, Southern Illinois University, Carbondale, 62901-4409 Cite this: Chem. Mater. 2004, 16, 10, 1835–1837Publication Date (Web):April 24, 2004Publication History Received21 August 2003Revised24 February 2004Published online24 April...

10.1021/cm034777d article EN Chemistry of Materials 2004-04-24

Femtosecond mid-IR transient absorption spectroscopy (TRIR) and time-dependent density functional theory (TD-DFT) calculations on Re(CO)3Cl(Me2BPTZ) [Me2BPTZ = 3,6-bis(5-methyl-2-pyridine)-1,2,4,5-tetrazine] are used to demonstrate that the lowest excited state of complex is a triplet metal-to-ligand charge-transfer (3MLCT) with lifetime 225 ps. The short excited-state explained by energy-gap law. Vibrational cooling 3MLCT shows up as early-time dynamics (3.6 ps). structural changes in...

10.1021/ja903901n article EN Journal of the American Chemical Society 2009-08-04

Abstract Epidural block using lidocaine, a non‐selective blocker of voltage‐gated sodium channels (Nav), has demonstrated efficacy in the treatment severe plaque psoriasis limited number cases. This study aimed to evaluate effectiveness and safety epidural lidocaine adult patients with severe, treatment‐resistant psoriasis. was an open‐label pilot study. Patients plaque‐type unresponsive at least one systemic were enrolled for 1‐week followed up 48 weeks. Thirty‐six participated, 32...

10.1111/1346-8138.17145 article EN The Journal of Dermatology 2024-02-13

Estuaries are one of the most important ecosystems with high biological productivity. They connect freshwater and marine ecosystems, fish community assemblages face intense environmental changes, so estuarine communities have unique ecological characteristics. With increase human activities discharge pollutants, pressure on ecosystem Pearl River Estuary (PRE) is intensifying, its functions services inevitably affected. To better understand functional structure in PRE response to we analyzed...

10.1016/j.ecolind.2022.109525 article EN cc-by-nc-nd Ecological Indicators 2022-10-06
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