The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat
Само за регистроване кориснике
2016
Аутори
Ranđelović, Marjan S.Momčilović, Milan Z.
Purenović, Milovan M.
Zarubica, Aleksandra R.
Bojić, Aleksandar Lj.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Samples of natural peat (NP) were hydrothermally treated at different temperatures in oxidative and acidic aqueous medium to tailor their acid-base, adsorption, morphological and other properties. The obtained materials were thoroughly characterized by SEM, XRD and FTIR techniques, followed by determination of pH(pzc), examination of adsorption characteristics and the extent of organic matter leaching in water. Acid-base characteristics of these materials were examined by potentiometric and conductometric titration of corresponding aqueous suspensions. Experimental potentiometric data were interpreted using ProtoFit software (NEM, non-electrostatic model) which provided pKa values and concentrations of surface sites which are compared with corresponding values obtained by conductometric titration method. There are two main types of surface groups (carboxylic and phenolic) that are dominant in the materials and determine their acid-base behavior in the aqueous medium. Temperature during... oxidative hydrothermal treatment has no significant effect on the total number of surface groups, but influences the ratio of carboxylic and phenol-type groups. Hence, acid-base properties of peat can be tailored, which is useful in designing and improving adsorptive characteristics of peat for the preferential removal of certain pollutants from water.
Кључне речи:
Peat / Hydrothermal treatment / Surface / acid-base propertiesИзвор:
Environmental Earth Sciences, 2016, 75, 9Издавач:
- Springer
Финансирање / пројекти:
- Развој и карактеризација новог биосорбента за пречишћавање природних и отпадних вода (RS-MESTD-Technological Development (TD or TR)-34008)
DOI: 10.1007/s12665-016-5242-0
ISSN: 1866-6280; 1866-6299
WoS: 000376030100041
Scopus: 2-s2.0-84964546732
Колекције
Институција/група
VinčaTY - JOUR AU - Ranđelović, Marjan S. AU - Momčilović, Milan Z. AU - Purenović, Milovan M. AU - Zarubica, Aleksandra R. AU - Bojić, Aleksandar Lj. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1076 AB - Samples of natural peat (NP) were hydrothermally treated at different temperatures in oxidative and acidic aqueous medium to tailor their acid-base, adsorption, morphological and other properties. The obtained materials were thoroughly characterized by SEM, XRD and FTIR techniques, followed by determination of pH(pzc), examination of adsorption characteristics and the extent of organic matter leaching in water. Acid-base characteristics of these materials were examined by potentiometric and conductometric titration of corresponding aqueous suspensions. Experimental potentiometric data were interpreted using ProtoFit software (NEM, non-electrostatic model) which provided pKa values and concentrations of surface sites which are compared with corresponding values obtained by conductometric titration method. There are two main types of surface groups (carboxylic and phenolic) that are dominant in the materials and determine their acid-base behavior in the aqueous medium. Temperature during oxidative hydrothermal treatment has no significant effect on the total number of surface groups, but influences the ratio of carboxylic and phenol-type groups. Hence, acid-base properties of peat can be tailored, which is useful in designing and improving adsorptive characteristics of peat for the preferential removal of certain pollutants from water. PB - Springer T2 - Environmental Earth Sciences T1 - The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat VL - 75 IS - 9 DO - 10.1007/s12665-016-5242-0 ER -
@article{ author = "Ranđelović, Marjan S. and Momčilović, Milan Z. and Purenović, Milovan M. and Zarubica, Aleksandra R. and Bojić, Aleksandar Lj.", year = "2016", abstract = "Samples of natural peat (NP) were hydrothermally treated at different temperatures in oxidative and acidic aqueous medium to tailor their acid-base, adsorption, morphological and other properties. The obtained materials were thoroughly characterized by SEM, XRD and FTIR techniques, followed by determination of pH(pzc), examination of adsorption characteristics and the extent of organic matter leaching in water. Acid-base characteristics of these materials were examined by potentiometric and conductometric titration of corresponding aqueous suspensions. Experimental potentiometric data were interpreted using ProtoFit software (NEM, non-electrostatic model) which provided pKa values and concentrations of surface sites which are compared with corresponding values obtained by conductometric titration method. There are two main types of surface groups (carboxylic and phenolic) that are dominant in the materials and determine their acid-base behavior in the aqueous medium. Temperature during oxidative hydrothermal treatment has no significant effect on the total number of surface groups, but influences the ratio of carboxylic and phenol-type groups. Hence, acid-base properties of peat can be tailored, which is useful in designing and improving adsorptive characteristics of peat for the preferential removal of certain pollutants from water.", publisher = "Springer", journal = "Environmental Earth Sciences", title = "The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat", volume = "75", number = "9", doi = "10.1007/s12665-016-5242-0" }
Ranđelović, M. S., Momčilović, M. Z., Purenović, M. M., Zarubica, A. R.,& Bojić, A. Lj.. (2016). The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat. in Environmental Earth Sciences Springer., 75(9). https://doi.org/10.1007/s12665-016-5242-0
Ranđelović MS, Momčilović MZ, Purenović MM, Zarubica AR, Bojić AL. The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat. in Environmental Earth Sciences. 2016;75(9). doi:10.1007/s12665-016-5242-0 .
Ranđelović, Marjan S., Momčilović, Milan Z., Purenović, Milovan M., Zarubica, Aleksandra R., Bojić, Aleksandar Lj., "The acid-base, morphological and structural properties of new biosorbent obtained by oxidative hydrothermal treatment of peat" in Environmental Earth Sciences, 75, no. 9 (2016), https://doi.org/10.1007/s12665-016-5242-0 . .