Fabrication of PVA/Gr/TiO2 adsorbent and s tudy of its application in removal of malachite green

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Rahnama Bahar; Baniasadi Hossein; LOTFI MARZIEH

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Journal: APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING Year:2019 | Volume:3 | Issue:1 Page(s): 59-68

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Title

Fabrication of PVA/Gr/TiO2 adsorbent and s tudy of its application in removal of malachite green

Author(s)

Rahnama Bahar | Baniasadi Hossein | LOTFI MARZIEH | Issue Writer Certificate

Keywords

Adsorbent

Malachite

Adsorption

Polyvinyl alcohol

Nanoparticles

Abstract

Research Subject: Removal of indus trial was tewater especially from textile and dyeing factories is always important actions to control of pollutions. Using of polymeric Adsorbents is an important method for removal of dyes from indus trial was tewater. In this research work, designing and fabrication of PVA-based Adsorbent with proper potential for removal of green Malachite from indus trial was tewater has been reported. Research Approach: For fabrication of Adsorbent 4 wt. % PVA was gelled in the present of 10 wt. % glutaraldehyde as cross-linker and punched. The punched hydrogels were porous with freeze drying method. For improving the Adsorption ability, graphene and TiO2 were used. The Adsorption of green Malachite with prepare Adsorbent was measured timely to determine the optimum percentage of Nanoparticles. In addition, the effect of contact time and the presence of UV on the Adsorption of pollution was inves tigated. Finally, the Adsorption isotherms and thermodynamics study were inves tigated in different time. Main Results: The results of Adsorption of pollution with PVA/graphene Adsorbent in different times showed that 0. 5 wt. % is the optimum loading of graphene in the PVA matrix. This value was 3 wt. % for TiO2. The Adsorption percentage via optimum Adsorbent in dark condition showed that one minute after addition of Adsorbent the Adsorption percent increased to 75% indicating the high capability of the Adsorbent in Adsorption of tested pollution. The porous s tructure was confirmed via SEM image. By comparing the correlation coefficient for Langmuir and Freundlich isotherms it was found that Freundlich isotherm has better agreement with the findings of the current s tudy. In other words, Adsorption of green Malachite with fabricated Adsorbent was done multi layered. The thermodynamics s tudies showed that due to negative value of Gibbs energy the Adsorption reaction of green Malachite with fabricated absorbent is automatically.

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APA: Copy

Rahnama, Bahar, Baniasadi, Hossein, & LOTFI, MARZIEH. (2019). Fabrication of PVA/Gr/TiO2 adsorbent and s tudy of its application in removal of malachite green. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, 3(1 ), 59-68. SID. https://sid.ir/paper/267804/en

Vancouver: Copy

Rahnama Bahar, Baniasadi Hossein, LOTFI MARZIEH. Fabrication of PVA/Gr/TiO2 adsorbent and s tudy of its application in removal of malachite green. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING[Internet]. 2019;3(1 ):59-68. Available from: https://sid.ir/paper/267804/en

IEEE: Copy

Bahar Rahnama, Hossein Baniasadi, and MARZIEH LOTFI, “Fabrication of PVA/Gr/TiO2 adsorbent and s tudy of its application in removal of malachite green,” APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, vol. 3, no. 1 , pp. 59–68, 2019, [Online]. Available: https://sid.ir/paper/267804/en

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