Publication


Featured researches published by Fang Yang.


Carbohydrate Research | 2011

Direct conversion of cellulose to 1-(furan-2-yl)-2-hydroxyethanone in zinc chloride solution under microwave irradiation

Lei Yang; Gang Li; Fang Yang; Songmei Zhang; Hongxian Fan; Xiao-Na Lv

Conversion of cellulose to 1-(furan-2-yl)-2-hydroxyethanone has been demonstrated in concentrated zinc chloride solution under microwave irradiation. Compared with the conventional oil-bath heating mode, microwave irradiation significantly reduced the reaction time and increased the yield of 1-(furan-2-yl)-2-hydroxyethanone. A typical degradation reaction with cellulose produced 1-(furan-2-yl)-2-hydroxyethanone in 12.0% molar yield in ZnCl(2) solution (ZnCl(2)-H(2)O ratio=2.25:1, w/w) with microwave irradiation at 600 W for 5 minutes at 135°C.


Advanced Materials Research | 2011

Mn/ZSM-5 Participated in Degradation of Cellulose

Yang Chen; Gang Li; Fang Yang; Song Mei Zhang

It was presented a Fenton-like catalyst Mn/ZSM-5 to evaluate its activities in degradation of cellulose in this paper. The degree of polymerization (DP) and crystalline degree of cellulose were sharply decreased with 87% and 33.6% after the degradation. Some soluble sugars and small molecular chemicals were detected. The suggested mechanism reflecting the degradation process was proposed.


Advanced Materials Research | 2011

Electrocatalytic Degradation of Cellulose Using Lead Dioxide Anode

De Fa Meng; Gang Li; Fang Yang; Zhi-hua Liu

A novel method of cellulose degradation is investigated in this paper. In this work, a three-electrode system, which contains a Pb/PbO2 anode, two copper cathodes and a reference saturated calomel electrode (SCE), is applied to electrocatalytic degradation of cellulose. The composition of the products in filtrate is characterized by phenol-sulfuric acid method, NMR and GC-MS. In addition, the solid sample is analyzed via Ubbelohde capillary viscometer and FT-IR spectra. The results suggest that it is effective to convert cellulose to soluble sugar, 5-hydroxymethylfurfural (5-HMF) and other products by electrocatalytic method. The reaction mechanism of cellulose degradation is also discussed.


Journal of Chemical Technology & Biotechnology | 2011

Photodegradation of cellulose under UV light catalysed by TiO2

Hongxian Fan; Gang Li; Fang Yang; Lei Yang; Songmei Zhang


Applied Surface Science | 2010

Synthesis and surface activity properties of alkylphenol polyoxyethylene nonionic trimeric surfactants

Fang Yang; Gang Li; Jian Qi; Songmei Zhang; Rong Liu


Applied Surface Science | 2012

Hydrophobically modified sodium humate surfactant: Ultra-low interfacial tension at the oil/water interface

Jianmei Zhang; Gang Li; Fang Yang; Nian Xu; Hongxian Fan; Tao Yuan; Lin Chen


Polymer Degradation and Stability | 2011

Mn/ZSM-5 participation in the degradation of cellulose under phosphoric acid media

Yang Chen; Gang Li; Fang Yang; Songmei Zhang


Polymer Degradation and Stability | 2011

Study of depolymerization of cotton cellulose by Pb/PbO2 anode electrochemical catalysis in sulfuric acid solution

Defa Meng; Gang Li; Zhi-hua Liu; Fang Yang


Journal of Surfactants and Detergents | 2011

Synthesis and Critical Micelle Concentration of a Series of Gemini Alkylphenol Polyoxyethylene Nonionic Surfactants

Fang Yang; Gang Li; Nian Xu; Rong Liu; Songmei Zhang; Zeng-Jiang Wu


Archive | 2009

Alkylphenol polyoxyethylene trimerization surfactant and preparation method thereof

Gang Li; Rong Liu; Nian Xu; Fang Yang; Jian Qi; Yangang He; Songmei Zhang

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