Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite
Само за регистроване кориснике
2013
Аутори
Milicević, SonjaMilosević, Vladan
Povrenović, Dragan
Stojanović, Jovica
Martinović, Sanja
Babić, Biljana M.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of... these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli lt FeCli(2) lt FeNaCli(1), for Cu: 0.121 mmol/g lt 0.251 mmol/g lt 0.403 mmol/g and for Zn: 0.128 mmol/g lt 0.234 mmol/g lt 0.381 mmol/g.
Кључне речи:
Copper / Fe-modification / Sorption Capacity / Zeolite / ZincИзвор:
Clays and Clay Minerals, 2013, 61, 6, 508-516Издавач:
- Clay Minerals Soc, Chantilly
Финансирање / пројекти:
- Имплементација савременијих техничко-технолошких и еколошких решења у постојећим производним системима Рудника Бакра Бор и Рудника Бакра Мајданпек (RS-MESTD-Technological Development (TD or TR)-33007)
DOI: 10.1346/CCMN.2013.0610603
ISSN: 0009-8604
WoS: 000339789500003
Scopus: 2-s2.0-84902197797
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Milicević, Sonja AU - Milosević, Vladan AU - Povrenović, Dragan AU - Stojanović, Jovica AU - Martinović, Sanja AU - Babić, Biljana M. PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2398 AB - The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli lt FeCli(2) lt FeNaCli(1), for Cu: 0.121 mmol/g lt 0.251 mmol/g lt 0.403 mmol/g and for Zn: 0.128 mmol/g lt 0.234 mmol/g lt 0.381 mmol/g. PB - Clay Minerals Soc, Chantilly T2 - Clays and Clay Minerals T1 - Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite EP - 516 IS - 6 SP - 508 VL - 61 DO - 10.1346/CCMN.2013.0610603 ER -
@article{ author = "Milicević, Sonja and Milosević, Vladan and Povrenović, Dragan and Stojanović, Jovica and Martinović, Sanja and Babić, Biljana M.", year = "2013", abstract = "The increasing levels of industrial wastewater released to the environment present a serious threat to human health, living resources, and ecological systems. Fe-modified zeolites were developed and tested for removal of Cu2+ and Zn2+ from contaminated water. The surfaces of the naturally occurring zeolite, clinoptilolite, were modified with Fe(III) oxyhydroxides using three different methods, denoted I, II, and III (FeCli(1), FeCli(2), and FeNaCli(1), respectively). The oxyhydroxides were prepared in Method I using 0.1 M FeCl3 center dot 6H(2)O in an acetate buffer (pH = 3.6); in Method II, using 10% FeCl3 center dot 6H(2)O solution in 0.1 M KOH (pH = 10); and Method III was the same as Method I except the clinoptilolite was pretreated with NaCl. Newly synthesized materials from these three methods were then tested for their ability to enhance the sorption capacity for Cu and Zn compared to the natural sample (Cli). Powder X-ray diffraction measurements and the chemical composition of these modified samples confirmed that clinoptilolite maintained its structure while amorphous Fe3+ species were synthesized. The specific surface area (BET method) of both the natural and modified clinoptilolite increased by 2 and 7.5 times for Methods I and II, respectively. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that CaO was formed during Method I (FeCli(1)). Throughout the adsorption process, the hydrolysis of CaO and the release of OH- caused the precipitation of Cu and Zn hydroxide, which made the determination of the sorption capacity of FeCli(1) impossible. This phenomenon was avoided in Method III (FeNaCli(1)) because of the absence of exchangeable Ca2+. The adsorption experiments with Method II resulted in double-enchanced adsoprtion capacity. Laboratory batch experiments revealed that the sorption capacities increased in the following order: Cli lt FeCli(2) lt FeNaCli(1), for Cu: 0.121 mmol/g lt 0.251 mmol/g lt 0.403 mmol/g and for Zn: 0.128 mmol/g lt 0.234 mmol/g lt 0.381 mmol/g.", publisher = "Clay Minerals Soc, Chantilly", journal = "Clays and Clay Minerals", title = "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite", pages = "516-508", number = "6", volume = "61", doi = "10.1346/CCMN.2013.0610603" }
Milicević, S., Milosević, V., Povrenović, D., Stojanović, J., Martinović, S.,& Babić, B. M.. (2013). Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals Clay Minerals Soc, Chantilly., 61(6), 508-516. https://doi.org/10.1346/CCMN.2013.0610603
Milicević S, Milosević V, Povrenović D, Stojanović J, Martinović S, Babić BM. Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite. in Clays and Clay Minerals. 2013;61(6):508-516. doi:10.1346/CCMN.2013.0610603 .
Milicević, Sonja, Milosević, Vladan, Povrenović, Dragan, Stojanović, Jovica, Martinović, Sanja, Babić, Biljana M., "Removal of heavy metals from aqueous solution using natural and fe(iii) oxyhydroxide clinoptilolite" in Clays and Clay Minerals, 61, no. 6 (2013):508-516, https://doi.org/10.1346/CCMN.2013.0610603 . .