title

حذف رنگ خطرناک مالاشیت سبز با استفاده از اکسید گرافن به عنوان یک جاذب از فاز آبی(2016)

سرخوش, مریم and عطافر, زهرا and نظری, شهرام and فخری, یداله and رضایی, سهیلا and شیخ محمدی, امیر and محسنی, سید محسن and بازیار, بهاره (1394) حذف رنگ خطرناک مالاشیت سبز با استفاده از اکسید گرافن به عنوان یک جاذب از فاز آبی(2016). Journal of Chemical and Pharmaceutical Research ــ 8 (3). pp. 624-633. شاپا 7384-0975

[img]
Preview
Text
485kB

Official URL: http://jocpr.com


Title

Removal of malachite green, a hazardous dye using graphene oxide as an adsorbent from aqueous phase

English Abstract

Adsorptive potential of an agricultural waste, oat hull for the removal of a dye, Malachite Green from aqueous solutions was investigated. Graphene oxide was used as efficient adsorbent for the rapid removal of Malachite Green from the aqueous phase, the whole adsorption process was well investigated and elucidated. The impact of several influential parameters such as contact time, initial dye concentrations, initial solution pH and temperature was well studied and optimized. The optimized time for adsorption process was 100 min. The maximum removal efficiency occurred at optimized pH 3 of aqueous solutions. Increasing the initial concentration of Malachite Green dye adsorption capacity was decreased, this may be due to repulsion between Malachite Green negative charge and the graphene oxide surface negative charge. The effect of temperature revealed that adsorption process of dye on the developed adsorbent was endothermic. The adsorption equilibrium data of Malachite Green dye on to the GO adsorbent surface were found to be well fitted and in good agreement with the type (I) Langmuir isotherm; because it possesses high value of linear regression (R2 = 0.999) and least value for chi-square statistic (X2 = 2.28).

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :مریم سرخوش
نویسنده :زهرا عطافر
نویسنده :شهرام نظری
نویسنده :یداله فخری
نویسنده :سهیلا رضایی
نویسنده :امیر شیخ محمدی
نویسنده مسئول :سید محسن محسنی
نویسنده :بهاره بازیار
Additional Information:Indexed in: Google Scholar, Protozoological Abstracts,CAB Abstracts, *Research Article
کلیدواژه ها (انگلیسی):Adsorption; Mass Transfer; Isotherm; Malachite Green
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health

WA Public Health
WA Public Health
Divisions:Faculty of Health > Department of Environmental health
ID Code:7529
Deposited By: MR Shahram Nazari
Deposited On:28 Feb 1395 07:41
Last Modified:28 Feb 1395 08:02

Repository Staff Only: item control page

Document Downloads

More statistics for this item...