Preparation of Copper Oxide-Silica Porous Composites and Its Adsorption of Methylene Blue

doi:10.3724/SP.J.1095.2014.30543

Chinese Journal of Applied Chemistry

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Preparation of Copper Oxide-Silica Porous Composites and Its Adsorption of Methylene Blue

WU Zhongzheng, ZHU Weiju, WANG Dongmei, LI Cun^*, WU Zhenyu

(School of Chemistry and Chemical Engineering,Anhui University,Hefei 230601,China)

Received:2013-10-31 Revised:2014-01-12 Published:2014-09-03 Online:2014-09-03

Abstract

Abstract: Mesoporous silica and its copper oxide doped composite materials were synthesized by sol-gel and hydrothermal methods, using polyethylene glycol(PEG) as template. The target products were characterized by FTIR, HRTEM, XRD, BET and so on. The influences of reaction condition, such as copper oxide quality and reaction temperature, on porous structure were investigated in details. The samples used as adsorption material for adsorption of methylene blue(MB) in wastewater were studied. CuO/SiO2 mesoporous oxide composite has good absorbability of MB. The maximum removal rate reaches 97.17% for 10 mL of 4 mg/L MB solution at pH 9 in the presence of 0.015 g sorbent. The process and mechanism of adsorption were also studied.

Key words: sol-gel-hydrothermal method, composites, porous material, adsorption

CLC Number:

O635.2

WU Zhongzheng, ZHU Weiju, WANG Dongmei, LI Cun*, WU Zhenyu. Preparation of Copper Oxide-Silica Porous Composites and Its Adsorption of Methylene Blue[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.30543.

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Preparation of Copper Oxide-Silica Porous Composites and Its Adsorption of Methylene Blue

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