Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2
Samo za registrovane korisnike
2014
Autori
Markovski, JasminaMarković, Dana D.
Đokić, Veljko
Mitrić, Miodrag
Ristić, Mirjana
Onjia, Antonije
Marinković, Aleksandar
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined eggshell/goethite/alpha-MnO2; sorbent 3). Methods and processes for preparation of novel adsorbents were defined and obtained materials were characterized by BET, XRD, SEM and FTIR analysis. The influence of functionalization methods, solution pH, contact time, temperature, interfering ions and initial arsenate concentration on efficiencies of arsenate adsorption were studied in a batch system. Based on the orthogonal distance regression (ODR) fitting, using R-2, MARE and RMSRE statistical criteria, Langmuir and Sips equations were chosen for description of adsorption equilibriums on sorbents 1 and 3, respectively. The maximum adsorption capacities of 33.38 mg g(-1), 13.54 mg g(-1) and 47.04 mg g(-1) for sorbents 1-3, respectively, were ...obtained. Time-dependent study revealed that pseudo-second-order equation fitted well the kinetic data, while the Weber Morison model predicted intra-particle diffusion as main adsorption rate controlling step. Thermodynamic parameters indicated exothermic, feasible and spontaneous nature of adsorption process on sorbents I and 3. Results of Visual MINTEQ equilibrium speciation modeling program was used for studying pH, ionic strength and interfering ions influences on arsenate adsorption.
Ključne reči:
Arsenate / Eggshell / Goethite / alpha-MnO2 / Adsorption / MINTEQIzvor:
Chemical Engineering Journal, 2014, 237, 430-442Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Nove tehnologije za monitoring i zaštitu životnog okruženja od štetnih hemijskih supstanci i radijacionog opterećenja (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Proučavanje sinteze, strukture i aktivnosti organskih jedinjenja prirodnog i sintetskog porekla (RS-MESTD-Basic Research (BR or ON)-172013)
- Razvoj i primena metoda i materijala za monitoring novih zagađujućih i toksičnih organskih materija i teških metala (RS-MESTD-Basic Research (BR or ON)-172007)
DOI: 10.1016/j.cej.2013.10.031
ISSN: 1385-8947
WoS: 000329891900053
Scopus: 2-s2.0-84887541740
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Markovski, Jasmina AU - Marković, Dana D. AU - Đokić, Veljko AU - Mitrić, Miodrag AU - Ristić, Mirjana AU - Onjia, Antonije AU - Marinković, Aleksandar PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2795 AB - An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined eggshell/goethite/alpha-MnO2; sorbent 3). Methods and processes for preparation of novel adsorbents were defined and obtained materials were characterized by BET, XRD, SEM and FTIR analysis. The influence of functionalization methods, solution pH, contact time, temperature, interfering ions and initial arsenate concentration on efficiencies of arsenate adsorption were studied in a batch system. Based on the orthogonal distance regression (ODR) fitting, using R-2, MARE and RMSRE statistical criteria, Langmuir and Sips equations were chosen for description of adsorption equilibriums on sorbents 1 and 3, respectively. The maximum adsorption capacities of 33.38 mg g(-1), 13.54 mg g(-1) and 47.04 mg g(-1) for sorbents 1-3, respectively, were obtained. Time-dependent study revealed that pseudo-second-order equation fitted well the kinetic data, while the Weber Morison model predicted intra-particle diffusion as main adsorption rate controlling step. Thermodynamic parameters indicated exothermic, feasible and spontaneous nature of adsorption process on sorbents I and 3. Results of Visual MINTEQ equilibrium speciation modeling program was used for studying pH, ionic strength and interfering ions influences on arsenate adsorption. PB - Elsevier Science Sa, Lausanne T2 - Chemical Engineering Journal T1 - Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2 EP - 442 SP - 430 VL - 237 DO - 10.1016/j.cej.2013.10.031 ER -
@article{ author = "Markovski, Jasmina and Marković, Dana D. and Đokić, Veljko and Mitrić, Miodrag and Ristić, Mirjana and Onjia, Antonije and Marinković, Aleksandar", year = "2014", abstract = "An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined eggshell/goethite/alpha-MnO2; sorbent 3). Methods and processes for preparation of novel adsorbents were defined and obtained materials were characterized by BET, XRD, SEM and FTIR analysis. The influence of functionalization methods, solution pH, contact time, temperature, interfering ions and initial arsenate concentration on efficiencies of arsenate adsorption were studied in a batch system. Based on the orthogonal distance regression (ODR) fitting, using R-2, MARE and RMSRE statistical criteria, Langmuir and Sips equations were chosen for description of adsorption equilibriums on sorbents 1 and 3, respectively. The maximum adsorption capacities of 33.38 mg g(-1), 13.54 mg g(-1) and 47.04 mg g(-1) for sorbents 1-3, respectively, were obtained. Time-dependent study revealed that pseudo-second-order equation fitted well the kinetic data, while the Weber Morison model predicted intra-particle diffusion as main adsorption rate controlling step. Thermodynamic parameters indicated exothermic, feasible and spontaneous nature of adsorption process on sorbents I and 3. Results of Visual MINTEQ equilibrium speciation modeling program was used for studying pH, ionic strength and interfering ions influences on arsenate adsorption.", publisher = "Elsevier Science Sa, Lausanne", journal = "Chemical Engineering Journal", title = "Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2", pages = "442-430", volume = "237", doi = "10.1016/j.cej.2013.10.031" }
Markovski, J., Marković, D. D., Đokić, V., Mitrić, M., Ristić, M., Onjia, A.,& Marinković, A.. (2014). Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2. in Chemical Engineering Journal Elsevier Science Sa, Lausanne., 237, 430-442. https://doi.org/10.1016/j.cej.2013.10.031
Markovski J, Marković DD, Đokić V, Mitrić M, Ristić M, Onjia A, Marinković A. Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2. in Chemical Engineering Journal. 2014;237:430-442. doi:10.1016/j.cej.2013.10.031 .
Markovski, Jasmina, Marković, Dana D., Đokić, Veljko, Mitrić, Miodrag, Ristić, Mirjana, Onjia, Antonije, Marinković, Aleksandar, "Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2" in Chemical Engineering Journal, 237 (2014):430-442, https://doi.org/10.1016/j.cej.2013.10.031 . .