Yunwu Zheng
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View article: A Green Synthesis of Controllable Shear-Assisted Catalytically Graphitized Biomass-Derived Carbon and Its Multi-Scale Reinforcement Mechanism in Natural Rubber
A Green Synthesis of Controllable Shear-Assisted Catalytically Graphitized Biomass-Derived Carbon and Its Multi-Scale Reinforcement Mechanism in Natural Rubber Open
Carbon black (CB) serves as the most crucial reinforcing filler in natural rubber (NR) applications. However, conventional CB production relies on petroleum or coal resources, raising concerns about non-renewability and unsustainable resou…
View article: Preparation of Conductive Cellulose Coated with Conductive Polymer and Its Application in the Detection of pH and Characteristic Substances in Sweat
Preparation of Conductive Cellulose Coated with Conductive Polymer and Its Application in the Detection of pH and Characteristic Substances in Sweat Open
Rich biological information in sweat provides great potential for health monitoring and management. However, due to the complexity of sweat, the development of environmentally friendly green electronic products is of great significance to …
View article: Efficient and stable Fe-Ce-Al catalyst for catalytic deoxygenation of lignin for phenol and hydrocarbon-rich fuel: Effect of the synthesis method
Efficient and stable Fe-Ce-Al catalyst for catalytic deoxygenation of lignin for phenol and hydrocarbon-rich fuel: Effect of the synthesis method Open
To develop a structure-tailoring catalyst for catalytic conversion of lignin for value-added chemicals, a series of novel Fe-Ce-Al metal oxide catalysts was synthesized via different methods to tailor activity and structure for catalytic p…
View article: Crystallization-induced emission from F-doped carbon dots
Crystallization-induced emission from F-doped carbon dots Open
Herein, F-doped CDs with bright red SSF were synthesized by a solvothermal method using trifluoroethanol as the solvent and m -hydroxybenzaldehyde as the carbon source.
View article: Twisted Structure Induced Solid-State Fluorescence and Room Temperature Phosphorescence from Furan Based Carbon Dots
Twisted Structure Induced Solid-State Fluorescence and Room Temperature Phosphorescence from Furan Based Carbon Dots Open
View article: Preparation of Multicolor Fluorescent Carbon Dots Based on Catechol and o-Phthalaldehyde
Preparation of Multicolor Fluorescent Carbon Dots Based on Catechol and o-Phthalaldehyde Open
As the foremost category of carbon materials, carbon dots (CDs) have been extensively applied in many domains because of their special fluorescence features and outstanding biocompatibility. However, in early studies of fluorescent CDs, as…
View article: Formation and Band Gap Tuning Mechanism of Multicolor Emissive Carbon Dots from <i>m</i>‐Hydroxybenzaldehyde
Formation and Band Gap Tuning Mechanism of Multicolor Emissive Carbon Dots from <i>m</i>‐Hydroxybenzaldehyde Open
Reported in 2004, carbon dots (CDs) have been widely used in various fields due to their excellent optical properties. However, the mechanism of their fluorescence modulation is still a controversial issue, which also seriously affects the…
View article: Solid-State Red Carbon Dots Based on Biomass Furan Derivatives: Effects of Precursor Structures on Fluorescence Characteristics
Solid-State Red Carbon Dots Based on Biomass Furan Derivatives: Effects of Precursor Structures on Fluorescence Characteristics Open
View article: One-Step Pyrolysis of Nitrogen-Containing Chemicals and Biochar Derived from Walnut Shells to Absorb Polycyclic Aromatic Hydrocarbons (PAHs)
One-Step Pyrolysis of Nitrogen-Containing Chemicals and Biochar Derived from Walnut Shells to Absorb Polycyclic Aromatic Hydrocarbons (PAHs) Open
The pyrolysis of biomass is an efficient means of utilizing biomass resources. Biomass can be converted into various high-performance chemicals and functional materials through pyrolysis. However, current pyrolysis technologies suffer from…
View article: Ion-Modified Starch Film Enables Rapid Detection of Spoiled Fruit Juices
Ion-Modified Starch Film Enables Rapid Detection of Spoiled Fruit Juices Open
Juice, as a liquid foodstuff, is subject to spoilage and damage due to complications during transport and storage. The appearance of intact outer packaging often makes spoilage and damage difficult to detect. Therefore, it of particular im…
View article: Preparation of Multicolour Solid Fluorescent Carbon Dots for Light-Emitting Diodes Using Phenylethylamine as a Co-Carbonization Agent
Preparation of Multicolour Solid Fluorescent Carbon Dots for Light-Emitting Diodes Using Phenylethylamine as a Co-Carbonization Agent Open
Carbon dots (CDs), as a new type of photoluminescent nanomaterial, have attracted extensive attention in various fields because of their unique luminescence properties. However, CDs will exhibit fluorescence quenching in the solid state or…
View article: Preparing Colour-Tunable Tannic Acid-Based Carbon Dots by Changing the pH Value of the Reaction System
Preparing Colour-Tunable Tannic Acid-Based Carbon Dots by Changing the pH Value of the Reaction System Open
Biomass carbon dots (CDs) have the characteristics of being green, nontoxic, inexpensive, and simple to prepare, and they can be used in luminescence-related fields. In this study, red, green, and blue luminescent CDs were synthesised by a…
View article: Solvent-Free Pyrolysis Strategy for the Preparation of Biomass Carbon Dots for the Selective Detection of Fe3+ Ions
Solvent-Free Pyrolysis Strategy for the Preparation of Biomass Carbon Dots for the Selective Detection of Fe3+ Ions Open
Biomass carbon dots (BCDs) have the advantages of being nontoxic, low cost and simple to prepare, have excellent optical properties, good biocompatibility and stability, and therefore have broad application prospects in areas such as heavy…
View article: Solvent-Free Preparation of Tannic Acid Carbon Dots for Selective Detection of Ni2+ in the Environment
Solvent-Free Preparation of Tannic Acid Carbon Dots for Selective Detection of Ni2+ in the Environment Open
Carbon dots (CDs) are widely used nanomaterials that not only exhibit good biocompatibility and photostability, but also benefit from a simple preparation process and easy functionalization, making them promising for broad applications in …
View article: Advanced catalytic upgrading of biomass pyrolysis vapor to bio-aromatics hydrocarbon: A review
Advanced catalytic upgrading of biomass pyrolysis vapor to bio-aromatics hydrocarbon: A review Open
In order to solve the energy crisis and environmental pollution, the production of bio-aromatics from renewable biomass resources has become an effective way. However, due to the complexity of the composition and structure of biomass resou…
View article: Preparation of solvent-free starch-based carbon dots for the selective detection of Ru<sup>3+</sup> ions
Preparation of solvent-free starch-based carbon dots for the selective detection of Ru<sup>3+</sup> ions Open
A simple, green, and solvent-free pyrolysis method for the preparation of starch-based carbon dots (CDs) was developed.
View article: Red, green, and blue light-emitting carbon dots prepared from gallic acid for white light-emitting diode applications
Red, green, and blue light-emitting carbon dots prepared from gallic acid for white light-emitting diode applications Open
Red, green, and blue CDs were successfully prepared by a solvothermal method using gallic acid and o -phthaladehyde as raw materials.
View article: Red Emission Carbon Dots Prepared by 1,4-Diaminonaphthalene for Light-Emitting Diode Application and Metal Ion Detection
Red Emission Carbon Dots Prepared by 1,4-Diaminonaphthalene for Light-Emitting Diode Application and Metal Ion Detection Open
Carbon dots (CDs), as the most important type of carbon materials, have been widely used in many fields because of their unique fluorescence characteristics and excellent properties of biocompatibility. In previous studies, the fluorescenc…
View article: Using Carboxymethyl Cellulose as the Additive With Enzyme-Catalyzed Carboxylated Starch to Prepare the Film With Enhanced Mechanical and Hydrophobic Properties
Using Carboxymethyl Cellulose as the Additive With Enzyme-Catalyzed Carboxylated Starch to Prepare the Film With Enhanced Mechanical and Hydrophobic Properties Open
Carboxymethyl cellulose, a hydrophobic derivative from cellulose that can be prepared from different biomass, has been widely applied in food, medicine, chemical, and other industries. In this work, carboxymethyl cellulose was used as the …
View article: Red, green, and blue light-emitting carbon dots prepared from <i>o</i>-phenylenediamine
Red, green, and blue light-emitting carbon dots prepared from <i>o</i>-phenylenediamine Open
Red, green and blue CDs (RGB CDs) were successfully synthesized by a solvothermal method from o-phenylenediamine under different reaction conditions.
View article: Application of high-efficiency green fluorescent carbon dots prepared by acid catalysis in multicolour LEDs
Application of high-efficiency green fluorescent carbon dots prepared by acid catalysis in multicolour LEDs Open
Green fluorescent CDs prepared by acid catalysis with m -phenylenediamine showed concentration dependent fluorescence. Green, yellow and white LEDs were prepared according to the concentration dependent fluorescence characteristics of CDs.
View article: Preparation of Acid- and Alkali-Modified Biochar for Removal of Methylene Blue Pigment
Preparation of Acid- and Alkali-Modified Biochar for Removal of Methylene Blue Pigment Open
Walnut shell biochar (WSC) and wood powder biochar (WPC) prepared using the limited oxygen pyrolysis process were used as raw materials, and ZnCl2, KOH, H2SO4, and H3PO4 were used to m…
View article: Porous carbon nanofiber derived from a waste biomass as anode material in lithium-ion batteries
Porous carbon nanofiber derived from a waste biomass as anode material in lithium-ion batteries Open
View article: Flexible anode materials for lithium-ion batteries derived from waste biomass-based carbon nanofibers: I. Effect of carbonization temperature
Flexible anode materials for lithium-ion batteries derived from waste biomass-based carbon nanofibers: I. Effect of carbonization temperature Open
Carbon nanofibers (CNFs) with excellent electrochemical performance represent a novel class of carbon nanostructures for boosting electrochemical applications, especially sustainable electrochemical energy conversion and storage applicatio…
View article: Combustion Kinetics of Biochar Prepared by Pyrolysis of Macadamia Shells
Combustion Kinetics of Biochar Prepared by Pyrolysis of Macadamia Shells Open
The use of macadamia shells (MSs) has become an active research direction because of increasing production. This paper considers the combustion characteristics of MSs and their biochars that were investigated with thermogravimetry analysis…
View article: Effect of the Torrefaction Temperature on the Structural Properties and Pyrolysis Behavior of Biomass
Effect of the Torrefaction Temperature on the Structural Properties and Pyrolysis Behavior of Biomass Open
To improve prospects for high-value utilization of biomass, torrefaction pretreatments were conducted at 210, 230, 250, 270, and 300 °C with a reaction time of 30 min. The pyrolysis of torrefied biomass was also performed on a fixed-bed re…
View article: Liquefied walnut shell-derived carbon nanofibrous mats as highly efficient anode materials for lithium ion batteries
Liquefied walnut shell-derived carbon nanofibrous mats as highly efficient anode materials for lithium ion batteries Open
Mechanically flexible walnut shell-derived carbon nanofibers (CNFs) of 175 nm diameter were fabricated from a liquefied walnut shell—polyvinyl alcohol (PVA) hybrid solutionviaconventional electrospinning followed by one-step carbonization.
View article: Regulation for Optimal Liquid Products during Biomass Pyrolysis: A Review
Regulation for Optimal Liquid Products during Biomass Pyrolysis: A Review Open
The liquid product obtained from biomass pyrolysis is very valuable that it could be used for extraction of chemicals as well as for liquid fuel. The desire goal is to obtain the most bio-oil with desired higher heating value (HHV), high p…
View article: Catalytic pyrolysis of wood blended with ZSM-5 catalyst
Catalytic pyrolysis of wood blended with ZSM-5 catalyst Open
University Key Laboratory of Biomass Chemical Refinery & Synthesis, Yunnan Province, College of Materials Engineering, Southwest Forestry University, Kunming 650224, China E-mail : [email protected] College of Materials Sci…