Appropriate Technologies to Combat Water Pollution
In this paper, the modified multi-walled carbon nanotubes were prepared by β-cyclodextrin denoted as β-CD-MWNTs. The structure and morphology of β-CD-MWNTs was characterized by TEM and the dynamic adsorption of p-nitrophenol on β-CD-MWNTs was studied by the Thomas model. Some affecting factors of dynamic adsorption and the adsorbent regeneration process such as the sewage concentration, the amount of absorbent in column, including the type of reagent, solid-liquid ratio, regeneration time, and regeneration times were investigated and optimized. The results indicated that the p-nitrophenol removal rate could reach 84% under stuffing 2 g β-CD-MWNTs. The curves of p-nitrophenol’s dynamic adsorption conformed to the Thomas model. Moreover, the adsorption capacity of regenerated β-CD-MWNTs was similar to the fresh β-CD-MWNT column. The optimal conditions of regenerations of β-CD-MWNTs were shown as follows: the type of reagent is anhydrous ethanol, the solid-liquid ratio is 200:40 (mg/mL) and the regeneration time is 120 min.
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This work was financially supported by the YMU-DEAKIN International Associated Laboratory on Functional Materials, Key Laboratory of Resource Clean Conversion in Ethnic Region, Education Department of Yunnan Province (117-02001001002107) and College Student Innovation and Entrepreneurship Training Project of China (201710691001, 201610691002).
Al MF, Mo’ayyad S, Ahmad S, Mohammad AS (2008) Impact of Fenton and ozone on oxidation of wastewater containing nitroaromatic compounds. J Environ Sci 20(6):675–682CrossRefGoogle Scholar
Bai M (2015) Study on preparation of multi - walled carbon nanotubes and its properties [D] Yunnan Minzu UniverisityGoogle Scholar
Bing CHEN, Chun YANG, Goh NK (2006) Photolysis pathway of nitroaromatic compounds in aqueous solutions in the UV/H2O2 process. J Environ Sci 18(6):1061–1064CrossRefGoogle Scholar
Buchanan-Kilbey G, Djumpah J, Papadopoulou MV, Bloomer W, Hu L, Wilkinson SR, Ashworth R (2013) Evaluating the developmental toxicity of trypanocidal nitroaromatic compounds on zebrafish. Acta Trop 128(3):701–705CrossRefGoogle Scholar
Cha J, Jin S, Shim JH, Park CS, Ryu HJ, Hong SH (2016) Functionalization of carbon nanotubes for fabrication of CNT/epoxy nanocomposites. Mater Des 95:1–8CrossRefGoogle Scholar
Changxiu L, Tan W, Li Y, Hu X, Wang HB, Yang M (2013) Determination of fenpropathrin pesticide residues in vegetables by multi-walled carbon nanotube solid phase extraction coupled with gas chromatography. Chem Anal Chem 49(6):709–712 (in Chinese)Google Scholar
Faina K, Drug E, Mashiach-Farkash E et al (2013) Diameter-selective dispersion of carbon nanotubes by lactoglobulin whey protein. Colloids Surf B: Biointerfaces 112:16–22CrossRefGoogle Scholar
Ferreira FV, Francisco W, de Menezes BRC, Cividanes LDS, dos Reis Coutinho A, Thim GP (2015) Carbon nanotube functionalized with dodecylamine for the effective dispersion in solvents. Appl Surf Sci 357:2154–2159CrossRefGoogle Scholar
Fuqiang A, Ruikui D, Wang X (2012) Adsorption of phenolic compounds from aqueous solution using salicylic acid type adsorbent. J Hazard Mater 201– 202:74–81Google Scholar
Gimeno O, Carbajo M, Beltran FJ et al (2005) Phenol and substituted phenols AOPs remediation. J Hazard Mater B 119(1 /2 /3):99–108CrossRefGoogle Scholar
Hannula PM, Peltonen A, Aromaa J, Janas D, Lundström M, Wilson BP, Forsén O (2016) Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers. Carbon 107:281–287CrossRefGoogle Scholar
Ksibi M, Zem zemi A, Boukchina R (2003) Photocatalytic degradability of substituted phenols over UV irradiated TiO2. J Photochem Photobiol A Chem 159(1):61–70CrossRefGoogle Scholar
Mohammad A, Abbassi-Sourki F, Bakhshandeh GR (2014) An investigation on the dispersibility of carbon nanotube in the latex nanocomposites using rheological properties. Compos Part B 56:149–156CrossRefGoogle Scholar
Noreña-Caro D, Álvarez-Láinez M (2016) Functionalization of polyacrylonitrile nanofibers with β-cyclodextrin for the capture of formaldehyde. Mater Des 95:632–640CrossRefGoogle Scholar
Sajid MI, Jamshaid U, Jamshaid T, Zafar N, Fessi H, Elaissari A (2016) Carbon nanotubes from synthesis to in vivo biomedical applications. Int J Pharm 501(1):278–299CrossRefGoogle Scholar
Sibdas Singha M, Yadav SK, Yoo HJ, Cho JW, Park J-S (2013) Highly branched polyurethane: synthesis, characterization and effects of branching on dispersion of carbon nanotubes. Compos Part B 45:165–171CrossRefGoogle Scholar
Thomas HC (1944) Heterogeneous ion exchange in a flowing system. Am Chem Soc 66(10):1664–1666CrossRefGoogle Scholar
Wang HB, Zhao TT, Li GZ, Tan W, Li B, Yang M (2015) Determination of seven triazole pesticide residues in water using multi-walled carbon nanotubes solid phase extraction-high performance liquid chromatography (04): 42–46.(in Chinese)Google Scholar
Wu XQ, Wu XW, Huang Q, Shen JS, Zhang HW (2015) In situ synthesized gold nanoparticles in hydrogels for catalytic reduction of nitroaromatic compounds. Appl Surf Sci 331:210–218CrossRefGoogle Scholar