太阳成8722(中国)有限公司-GREEN NO.1

标题：Effective photocatalytic decolorization of methylene blue utilizing ZnO/rectorite nanocomposite under simulated solar irradiation作者：Li Shi-qian; Zhou Pei-jiang; Zhang Wan-shun; Chen Sheng; Peng Hong

来源出版物：JOURNAL OF ALLOYS AND COMPOUNDS 卷：616 页：227-234 DOI：10.1016/j.jallcom.2014.07.102 出版年：DEC 15 2014

摘要：Preparation of a nanometer zinc oxide/rectorite (ZnO/REC) composites photocatalyst based on natural rectorite was conducted using a hydrothermal intercalation method. The structure, thermal property, and surface morphology of ZnO/REC were characterized by X-ray diffractor (XRD), thermogravimetric analysis (TGA), high-resolution transmission electron microscope (HRTEM) and scanning electron microscope (SEM) techniques. The photocatalytic activity of ZnO/REC was evaluated by photocatalytic decolorization of methylene blue (MB) in aqueous solution as a model pollutant under simulated sunlight irradiation. The HRTEM results revealed that well-dispersed and uniform ZnO/REC nanocomposites with diameters of 10 nm were embedded in rectorite. The ZnO/REC nanocomposite exhibited high photocatalytic activity under simulated solar irradiation. After 2 h of irradiation by simulated solar light, over 99% of methylene blue solution (15 mg/L) was decolorized with 0.9 g/L of the photocatalyst. The ZnO/REC was reusable, which meant that the adsorption photocatalytic decolorization process could be operated at a relatively low cost. Since this process does not require the addition of hydrogen peroxide but uses sunlight, it can be developed as an economically feasible and environmentally friendly method to decolorize or treat dye wastewater using solar.

入藏号：WOS:000342654000034

文献类型：Article

语种：English

作者关键词：ZnO/rectorite, Nanocomposites, Simulated solar, Methylene blue, Photodecolorization

扩展关键词：ZNO; DEGRADATION; LIGHT; TIO2; REMOVAL; WATER; ACID-ORANGE-7; TEMPERATURE; SUSPENSIONS; FABRICATION

通讯作者地址： Li Shi-qian; ]Wuhan Univ, Coll Resource & Environm Sci, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

电子邮件地址：shiqianli04@tom.com

地址：

[Li Shi-qian; Zhou Pei-jiang; Zhang Wan-shun]Wuhan Univ, Coll Resource & Environm Sci, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

[Li Shi-qian; Chen Sheng] Fujian Normal Univ, FuQing Branch, Dept Biol & Chem Engn, Fuqing 350300, Peoples R China.

[Peng Hong] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China.

研究方向：Chemistry; Materials Science; Metallurgy & Metallurgical Engineering

ISSN：0925-8388