Adsorption of inorganic ions from aqueous solutions using mineral sorbent - tripoli; MATEC Web of Conferences; Vol. 85 : Chemistry and Chemical Technology in XXI Century (CCT 2016)

Adsorption of inorganic ions from aqueous solutions using mineral sorbent - tripoli; MATEC Web of Conferences; Vol. 85 : Chemistry and Chemical Technology in XXI Century (CCT 2016)

書目詳細資料
Parent link:MATEC Web of Conferences
Vol. 85 : Chemistry and Chemical Technology in XXI Century (CCT 2016).— 2016.— [01017, 7 p.]
主要作者: Yurmazova T. A. Tatyana Aleksandrovna
企業作者: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра общей химии и химической технологии (ОХХТ)
其他作者: Shakhova N. B. Nina Borisovna, Tran Tuan Hoang
總結:Title screen
The present research considers the adsorption of H[2]AsO[4] -, CrO[4]{2-}, Ni{2+}, Fe{3+} ions from their aqueous solutions by mineral sorbent - tripoli. Tripoli was characterized by different physico-chemical methods such as X-ray phase analysis, inductively coupled plasma atomic emission spectrometry, method of thermal desorption of nitrogen. Contact time, specific surface area, specific pore volume and surface charge of tripoli have been determined. The effect of tripoli surface area modification by iron (III) oxide-hydroxide on tripoli sorption capacity for the arsenic anions has been investigated. The maximum adsorption was found to occur within 30 minutes of contact time. Different models including the pseudofirst-order kinetic and the pseudo-second-order kinetic equations were used to analyse kinetic data. All the models being considered, it has been stated that the pseudo-second-order kinetic model is the most appropriate to describe the adsorption behaviour of Fe{3+} ions on tripoli. The adsorption has been explained in terms of Langmuir and Freundlich isotherms. Based on values of correlation coefficients, H[2]AsO[4]{-}, CrO[4]{2-}, Ni{2+}, Fe{3+} sorption isotherm data were better fitted by Langmuir model. It has been detected that the modification of mineral sorbent (tripoli) leads to the increase in H[2]AsO[4]{-} adsorbing capacity of tripoli. In general, the results indicated that tripoli can be an efficient low-cost sorbent for removing H[2]AsO[4]{-}, Ni{2+}, Fe{3+} ions from aqueous solutions.
語言:英语
出版: 2016
主題:
электронный ресурс
труды учёных ТПУ
адсорбция
ионы
водные растворы
минеральные сорбенты
трепел
адсорбенты
在線閱讀:http://dx.doi.org/10.1051/matecconf/20168501017
http://earchive.tpu.ru/handle/11683/36570
格式: 電子 Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652848

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