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Lian Q, Konggidinata MI, Ahmad ZU, Gang DD, Yao L, Subramaniam R, Revellame E, Holmes WB, Zappi M. Combined effects of textural and surface properties of modified ordered mesoporous carbon (OMC) on BTEX adsorption. JOURNAL OF HAZARDOUS MATERIALS 2019; 377:381-390. [PMID: 31173989 DOI: 10.1016/j.jhazmat.2019.05.079] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/26/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
In this study, we first investigated the effects of textural parameters and surface properties of ordered mesoporous carbon (OMC) for the adsorptive removal of Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) from aqueous solutions. The BET surface area, pore volume, and surface functional groups of OMC played a crucial role in affecting the adsorption performance of BTEX. Boric acid was used to increase the pore size and BET surface area of OMC from 5.94 nm to 6.74 nm and from 1276 m2/g to 1428 m2/g, respectively. Citric acid was used to introduce more oxygen-containing functional groups on the surface of OMC achieving an overall increase of 11.4% of the oxygen content. The batch adsorption experiments were conducted to evaluate the adsorption capacity for OMC and modified towards BTEX and the results showed that modified OMC exhibited a significant improvement for BTEX removal in the following order: Xylenes > Ethylbenzene > Toluene > Benzene. The BTEX adsorption capacities were improved from 8% to 15% with the addition of boric acid compared to the virgin. Surface functionalized using citric acid exhibited the total adsorption capacity of 142 mg/g with an increment of 40.5% compared to virgin OMC.
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Affiliation(s)
- Qiyu Lian
- Department of Civil Engineering, University of Louisiana at Lafayette, P. O. Box 43598, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - Mas Iwan Konggidinata
- Department of Chemical Engineering, University of Louisiana at Lafayette, P. O. Box 43675, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - Zaki Uddin Ahmad
- Department of Civil Engineering, University of Louisiana at Lafayette, P. O. Box 43598, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - Daniel Dianchen Gang
- Department of Civil Engineering, University of Louisiana at Lafayette, P. O. Box 43598, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA.
| | - Lunguang Yao
- Henan Key Laboratory of Ecological Security, Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Rd, Nanyang, Henan, PR China
| | - Ramalingam Subramaniam
- Department of Chemical Engineering, University of Louisiana at Lafayette, P. O. Box 43675, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - Emmanuel Revellame
- Department of Industrial Technology, University of Louisiana at Lafayette, P. O. Box 43636, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - William Bill Holmes
- Department of Chemical Engineering, University of Louisiana at Lafayette, P. O. Box 43675, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
| | - Mark Zappi
- Department of Chemical Engineering, University of Louisiana at Lafayette, P. O. Box 43675, Lafayette, LA 70504, USA; Center for Environmental Technology, The Energy Institute of Louisiana, P. O. Box 43597, Lafayette, LA 70504, USA
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Seleim SM, Hamdalla TA, Mahmoud ME. Thin film assembly of nanosized cobalt(II) bis(5-phenyl-azo-8-hydroxyquinolate) using static step-by-step soft surface reaction technique: Structural characterization and optical properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 184:134-140. [PMID: 28494375 DOI: 10.1016/j.saa.2017.04.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 04/20/2017] [Accepted: 04/23/2017] [Indexed: 06/07/2023]
Abstract
Nanosized (NS) cobalt (II) bis(5-phenyl-azo-8-hydroxyquinolate) (NS Co(II)-(5PA-8HQ)2) thin films have been synthesized using static step-by-step soft surface reaction (SS-b-SSR) technique. Structural and optical characterizations of these thin films have been carried out using thermal gravimetric analysis (TGA), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and X-ray diffraction (XRD). The HR-TEM results revealed that the assembled Co(II)-complex exhibited a uniformly NS structure particles in the form of nanorods with width and length up to 16.90nm and 506.38nm, respectively. The linear and nonlinear optical properties have been investigated. The identified energy gap of the designed thin film materials was found 4.01eV. The refractive index of deposited Co(II)-complex thin film was identified by thickness-dependence and found as 1.9 at wavelength 1100nm. In addition, the refractive index was varied by about 0.15 due to an increase in the thickness by 19nm.
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Affiliation(s)
- S M Seleim
- Faculty of Science, Chemistry Department, Alexandria University, P.O. Box 426, Ibrahimia, 21321 Alexandria, Egypt
| | - Taymour A Hamdalla
- Faculty of Science, Physics Department, Alexandria University, P.O. Box 426, Ibrahimia, 21321 Alexandria, Egypt; Faculty of Science, Physics Department, Tabuk University, Tabuk, Saudi Arabia
| | - Mohamed E Mahmoud
- Faculty of Science, Chemistry Department, Alexandria University, P.O. Box 426, Ibrahimia, 21321 Alexandria, Egypt.
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Zhou Y, Liu X, Tang L, Zhang F, Zeng G, Peng X, Luo L, Deng Y, Pang Y, Zhang J. Insight into highly efficient co-removal of p-nitrophenol and lead by nitrogen-functionalized magnetic ordered mesoporous carbon: Performance and modelling. JOURNAL OF HAZARDOUS MATERIALS 2017; 333:80-87. [PMID: 28342358 DOI: 10.1016/j.jhazmat.2017.03.031] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/26/2017] [Accepted: 03/13/2017] [Indexed: 05/26/2023]
Abstract
Highly efficient simultaneous removal of Pb(II) and p-nitrophenol (PNP) contamination from water was accomplished by nitrogen-functionalized magnetic ordered mesoporous carbon (N-Fe/OMC). The mutual effects and inner mechanisms of their adsorption onto N-Fe/OMC were systematically investigated by sole and binary systems, and thermodynamic, sorption isotherm and adsorption kinetics models. The liquid-film diffusion step might be the rate-limiting step for PNP and Pb(II). The fitting of experimental data with Temkin model indicates that the adsorption process of PNP and Pb(II) involve physisorption and chemisorption. There exist site competition and enhancement of PNP and Pb(II) on the sorption to N-Fe/OMC. Moreover, N-Fe/OMC could be regenerated effectively and recycled by using dilute NaOH and acetone. These demonstrated superior properties of N-Fe/OMC indicate that it could be applied to treatment of wastewaters containing both lead and PNP.
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Affiliation(s)
- Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Xiaocheng Liu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Fengfeng Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Xiangqi Peng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaochen Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Ya Pang
- Department of Biotechnology and Environmental Science, Changsha College, Changsha 410003, China
| | - Jiachao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
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Sheikhmohammadi A, Mohseni SM, khodadadi R, Sardar M, Abtahi M, Mahdavi S, Keramati H, Dahaghin Z, Rezaei S, Almasian M, Sarkhosh M, Faraji M, Nazari S. Application of graphene oxide modified with 8-hydroxyquinoline for the adsorption of Cr (VI) from wastewater: Optimization, kinetic, thermodynamic and equilibrium studies. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.101] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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