A5100770643- Lignin and Wood Chemistry
- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- Thermochemical Biomass Conversion Processes
- Enzyme-mediated dye degradation
- Biochemical and biochemical processes
- Oxidative Organic Chemistry Reactions
- CO2 Reduction Techniques and Catalysts
- Ionic liquids properties and applications
- Advanced Cellulose Research Studies
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Biofuel production and bioconversion
- Photonic and Optical Devices
- TiO2 Photocatalysis and Solar Cells
- Zeolite Catalysis and Synthesis
- Advanced MEMS and NEMS Technologies
- Adsorption and biosorption for pollutant removal
- Reproductive Health and Technologies
- Assisted Reproductive Technology and Twin Pregnancy
- Advanced Battery Materials and Technologies
- Advanced Thermoelectric Materials and Devices
- Dyeing and Modifying Textile Fibers
- Biopolymer Synthesis and Applications
- Advanced Nanomaterials in Catalysis
Southeast University
2017-2025
Central South University
2020
Shandong University
2012-2019
Shandong Provincial Hospital
2019
Qingdao Institute of Bioenergy and Bioprocess Technology
2017
Chinese Academy of Sciences
2017
South China University of Technology
2016
Beijing Radiation Center
2015
Hebei GEO University
2012
Ocean University of China
2011
Abstract As the most abundant renewable aromatic biopolymer resource on Earth, lignin has become a cutting‐edge research hotspot in clean photocatalysis, thanks to distinct highest occupied molecular‐orbital and lowest unoccupied energy levels driven by major β‐O‐4 linked bonds. However, complex spatial architecture of functional groups, represented benzene rings 3D intertwined macromolecular chains lignin, challenge enhancing carrier separation efficiency remain persistent obstacles...
Lignin represents the most abundant and sustainable aromatic resource to produce value-added aromatics. However, an efficient selective cleavage of recalcitrant C–C bonds in lignin under mild conditions remains challenging. Photocatalysis has emerged as a promising strategy for such bond ambient conditions, although activity selectivity need be further improved. Herein, using polyimide photocatalyst, we report β-O-4 model visible light at room temperature. The was converted into products...
The fundamental understanding of the catalytic performance copper-based catalysts for lignin hydroconversion is delayed compared with empirical optimization catalyst preparation. Herein, we investigate interplay between lignin-abundant oxygen-containing functional groups and Cu active species via β-O-4 linkage hydrogenolysis. Catalyst data elemental spectra characterizing demonstrate dominance Cu0 in catalysis. Remarkably, Cα–OH Cα═O aliphatic chain play critical roles this process, without...
In this work, a lignin-based concrete water reducer was prepared through organic solvent fractionation and chemical modification of lignin extracted from pine wood with formic acid. The fractionated different molecular weight modified via oxidation–sulfomethylation (OS), the effects on performance were investigated. It found that sulfonation degree (SD) after OS clearly higher compared to unfractionated lignin, SD linearly correlated its workability (i.e., fluidity cement paste) based...
To determine the effects of age and serum anti-Müllerian hormone (AMH) level on in vitro fertilization (IVF) outcomes, especially among young women with low AMH levels older high levels.This study was a cohort which total 9431 aged 20-51 years who were undergoing their first IVF cycles recruited. Ovarian response parameters included number retrieved oocytes, 2 pronuclear zygotes (2PN), frequency good-quality embryos (GQE). Pregnancy outcomes clinical pregnancy rate (CPR), live birth (LBR),...
The development of an economic and sustainable catalytic system was crucial for lignin-based biorefinery. Herein, we reported a low-cost Cu/CuMgAlOx catalyst with promising activity toward lignin hydrodeoxygenation (HDO) through H2-free method. Supercritical methanol used as the hydrogen donor, solvent, reactant simultaneously. Guaiacol employed representative model compound to reveal HDO mechanism derivatives. HDOs guaiacol performed at 250, 275, 300, 350 °C durations ranging from 15 120...
The conversion of crude lignin bio-oil to jet fuels is a highly desirable target for biorefineries, especially in light the global energy crisis. key achieving this goal realistic tuning catalyst efficiency and selectivity expected products. Herein, copper with enhanced activity hydrodeoxygenation (HDO) fuel precursors was developed work. catalyst, copper-doped porous metal oxide, modified series moderate organic acids graft acidic O-groups as potential Brønsted acid sites HDO reactions....
Production of jet fuel precursors from waste kraft lignin through a depolymerization and hydrodeoxygenation (DHDO) method with complex copper acid catalyst is reported. The undergoes high degree depolymerization, deoxygenation, hydrogenation, C–C coupling. Monomers dimers molecular weights in the ranges <200 Da 354–452 are obtained optimized yields reaching 93.29 39.30 C% at 360 °C for 8 h, while trimers oligomers higher also generated lower contents. carbon monomers given by incorporation...
Lignin, an aromatic polymer, is a crucial component of lignocellulosic biomass and significant source renewable aromatics found in nature. Lignin constitutes up to 30 wt % generated excess 100 million tons per year from global paper bio-ethanol industries. Unfortunately, most technical lignin produced this manner burned as heat source, without any value-added valorization. The conversion into valuable compounds can significantly increase the profitability biorefineries. However, productivity...
A complex copper acid catalyst (SA-Cu/CuMgAlOx) was developed with boosted catalytic activity for the hydrodeoxygenation (HDO) of lignin-derived phenolics. Remarkably, yields total monomers and cyclohexanes from HDO lignin pyrolysis bio-oil were significantly improved after modification salicylic acid, which increased by 17 40%, respectively, at 300 °C 8 h. The characterizations revealed that acidic oxygen-containing functional groups (−OH −COOH) introduced onto surface without corrosion to...
Lignin is an aromatic polymer that constitutes over 30 wt% of lignocellulosic biomass and the most important source renewable aromatics in nature. The global paper industry generates more than 70 million tons Kraft lignin annually. Depolymerization to value-added monomers can significantly enhance profitability biorefinery. However, method impeded by severe condensation during pulping process, which forms robust C-C bonds results low monomer yields. In this study, we present a stepwise...