标題：Mechanism and performance for adsorption of 2-chlorophenol onto zeolite with surfactant by one-step process from aqueous phase作者：Peng, S (Peng, Sha); Tang, Z (Tang, Zheng); Jiang, W (Jiang, Wei); Wu, D (Wu, Di); Hong, S (Hong, Song); Xing, BS (Xing, Baoshan)

來源出版物：SCIENCE OF THE TOTAL ENVIRONMENT卷：581 頁碼：550-558 DOI：10.1016/j.scitotenv.2016.12.163出版年：MAR 1 2017

摘要：To decrease the power, material, and time consumption in wastewater treatment, a one-step process was performed to remove 2-chlorophenol (2-CP) from aqueous phase using zeolite and cetyltrimethylammonium bromide (CTAB). Compared with the traditional two-step process, the one-step process used in this study achieved almost eight times higher 2-CP adsorption capacity within a shorter time and maintained high removal efficiencies (around 65%) in reuse tests, thus becoming an efficient and economically acceptable alternative process. For the one-step process, the kinetic data fitted well with a nonlinear pseudo-second-order model, and the isotherm data fitted well with the Dubinin-Astakhov (DA) model. The uptake of 2-CP was highly dependent on pH, increasing in the pH range of 3-6. The enhanced 2-CP removal in a one-step adsorption process can be explained by the larger amount of surfactant loading (>= 0.056 mmol/g), as determined from the total organic carbon (TOC) and zeta potential. Due to the formation of a loose CTAB bilayer, the hydroph6bic partition and the interaction with the positively charged "head" of CTAB bilayers were decisive for the enhancement of pollutant adsorption. Therefore, organic pollutants could be removed from water alongside the synthesis of hydrophobic zeolite in a one-step process, which is a promising technology for the in-situ treatment of organic wastewater.

入藏号：WOS:000394635300051

文獻類型：Article

語種：English

作者關鍵詞：Zeolite; Surfactant; 2-chlorophenol; One-step process; Adsorption

擴展關鍵詞： CLINOPTILOLITE NANO-PARTICLES; SELECTIVE ELECTRODE; CATIONIC SURFACTANT; ACTIVE COMPONENT; NATURAL ZEOLITES; WASTE-WATER; REMOVAL; ACID; SORPTION; PHENOLS

通訊作者地址： Hong, S (reprint author), Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, PR, Peoples R China.

Xing, BS (reprint author), Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA.

電子郵件地址： songhongpku@126.com; bx@umass.edu

地址：

[Peng, Sha; Tang, Zheng; Wu, Di; Hong, Song] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, PR, Peoples R China.

[Peng, Sha; Xing, Baoshan] Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA.

[Jiang, Wei] Shandong Univ, Environm Res Inst, Jinan 250100, PR, Peoples R China.

研究方向： Environmental Sciences & Ecology

ISSN： 0048-9697

eISSN:1879-1026

影響因子：3.976