Literature DB >> 32030169

Pentachlorophenol removal from aqueous solutions using Montmorillonite modified by Silane & Imidazole: kinetic and isotherm study.

Zahra Seyedi1, Ali Akbar Amooey1, Abdoliman Amouei2, Hamed Tashakkorian3.   

Abstract

BACKGROUND: Removal of pentachlorophenol (PCP) from wastewater containing chlorophenols, due to its toxicity, mutagenic and carcinogenic properties, has been attracted much interests of researchers.
METHODS: In this research, K10 montmorillonite was modified by silane and imidazole (Im) for increasing the removal percentage of PCP from aqueous solutions. It was characterized by FTIR, XRF, FESEM, EDS, and BET techniques. The influence of different parameters such as initial concentration, contact time, adsorbent dosage, pH, temperature and agitating speed was investigated.
RESULTS: The maximum removal percentage (95%) were obtained for PCP at pH = 4. The isotherm experimental data for pentachlorophenol was best fitted using the Langmuir model and the kinetic studies were better described by the pseudo-second-order kinetic model. The thermodynamic study indicated that the adsorption of PCP by the adsorbent was feasible, spontaneous and exothermic.
CONCLUSION: In this study, the modified montmorillonite by silane and imidazole is appropriate and low cost adsorbent for increasing of the removal percentage of PCP from aqueous solutions. © Springer Nature Switzerland AG 2019.

Entities:  

Keywords:  Isotherm and kinetic model; Montmorillonite; Pentachlorophenol; Removal efficiency

Year:  2019        PMID： 32030169      PMCID： PMC6985331          DOI： 10.1007/s40201-019-00414-6

Source DB:  PubMed          Journal:  J Environ Health Sci Eng


  24 in total

1.  Modeling of adsorption isotherms of phenol and chlorophenols onto granular activated carbon. Part I. Two-parameter models and equations allowing determination of thermodynamic parameters.

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Authors:  Afshin Takdastan; Amir Hossein Mahvi; Eder C Lima; Mohammad Shirmardi; Ali Akbar Babaei; Gholamreza Goudarzi; Abdolkazem Neisi; Mohammad Heidari Farsani; Mehdi Vosoughi
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3.  Characterisation of organoclays and adsorption of p-nitrophenol: environmental application.

Authors:  Yuri Park; Godwin A Ayoko; Ray L Frost
Journal:  J Colloid Interface Sci       Date:  2011-04-30       Impact factor: 8.128

4.  Activated carbons from avocado seed: optimisation and application for removal of several emerging organic compounds.

Authors:  Anderson B Leite; Caroline Saucier; Eder C Lima; Glaydson S Dos Reis; Cibele S Umpierres; Beatris L Mello; Mohammad Shirmardi; Silvio L P Dias; Carlos H Sampaio
Journal:  Environ Sci Pollut Res Int       Date:  2017-12-28       Impact factor: 4.223

5.  Sorption of the neutral and charged forms of pentachlorophenol on soil: evidence for different mechanisms.

Authors:  J P Di Vincenzo; D L Sparks
Journal:  Arch Environ Contam Toxicol       Date:  2001-05       Impact factor: 2.804

6.  Mechanism and performance for adsorption of 2-chlorophenol onto zeolite with surfactant by one-step process from aqueous phase.

Authors:  Sha Peng; Zheng Tang; Wei Jiang; Di Wu; Song Hong; Baoshan Xing
Journal:  Sci Total Environ       Date:  2017-01-02       Impact factor: 7.963

7.  Biological Fenton's oxidation of pentachlorophenol by aquatic plants.

Authors:  Andre Rodrigues dos Reis; Yukako Kyuma; Yutaka Sakakibara
Journal:  Bull Environ Contam Toxicol       Date:  2013-09-17       Impact factor: 2.151

8.  Biosorption of phenol and o-chlorophenol from aqueous solutions on to chitosan-calcium alginate blended beads.

Authors:  Siva Kumar Nadavala; Kalyani Swayampakula; Veere M Boddu; Krishnaiah Abburi
Journal:  J Hazard Mater       Date:  2008-05-21       Impact factor: 10.588

9.  Removal of lead ions by acid activated and manganese oxide-coated bentonite.

Authors:  E Eren; B Afsin; Y Onal
Journal:  J Hazard Mater       Date:  2008-04-11       Impact factor: 10.588

10.  Effect of chlorine content of chlorophenols on their adsorption by mesoporous SBA-15.

Authors:  Qingdong Qin; Ke Liu; Dafang Fu; Haiying Gao
Journal:  J Environ Sci (China)       Date:  2012       Impact factor: 5.565
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