标题：Visible-light photocatalytic decolorization of reactive brilliant red X-3B on Cu2O/crosslinked-chitosan nanocomposites prepared via one step process作者：Cao, Chunhua; Xiao, Ling; Liu, Li; Zhu, Huayue; Chen, Chunhua; Gao, Lin
来源出版物：APPLIED SURFACE SCIENCE 卷：271 页：105-112 DOI：10.1016/j.apsusc.2013.01.135出版年：APR 15 2013
摘要：Cu2O/crosslinked-chitosan nanocomposites (Cu2O/CS NCs) were in situ prepared via a simple one-step liquid phase precipitation-reduction process and characterized by XRD, FT-IR, SEM, TEM, BET, XPS and UV-vis/DRS. The characterization results showed that Cu2O/CS NCs were almost similar spherical or ellipsoidal and the surface was rough and porous because Cu2O particle was wrapped in chitosan. The chitosan layer was especially favorable for improving the adsorption ability of dye and molecular oxygen and restraining the recombination of electrons-holes pair. The visible-light photocatalytic decolorization behavior on Cu2O/CS NCs was evaluated using reactive brilliant red X-3B (X-3B) as a model pollutant. The influences of various experimental factors on X-3B decolorization were investigated. It was found that the photocatalytic decolorization process on Cu2O/CS NCs followed apparent pseudo-first-order kinetics model. The dye X-3B could be decolorized more efficiently in acidic media than in alkaline media. Cu2O/CS NCs exhibited enhanced visible-light photocatalytic activity compared with other photocatalysts reported before under similar experimental conditions.
作者关键词：Cuprous oxide, Chitosan, Photocatalytic decolorization, Visible light, Reactive brilliant red X-3B
扩展关键词：ONE-POT SYNTHESIS; CDS QUANTUM DOTS; ELECTROCHEMICAL METHOD; ACTIVATED CARBON; CUPROUS-OXIDE; CU2O; TIO2; IRRADIATION; NANOPARTICLES; DEGRADATION
通讯作者地址：Xiao, Ling ;Luojia Mt Wuchang, Wuhan 430072, Hubei Province, Peoples R China
[Cao, Chunhua; Xiao, Ling; Liu, Li; Zhu, Huayue] WuhanUniv, Coll Resource & Environm Sci,Wuhan430072, Peoples RChina.
[Cao, Chunhua; Chen, Chunhua; Gao, Lin] Jianghan Univ, Coll Chem & Environm Engn, Minist Educ, Key Lab Optoelect Chem Mat & Devices, Wuhan 430056, Peoples R China.
研究方向：Chemistry; Materials Science; Physics
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