Study on the Adsorption of Methylene Blue on Graphene Oxide/ Polyvinyl Alcohol Composite Film
Main Article Content
Abstract
With the aim of investigate the adsorption capacity of graphene oxide/polyvinyl alcohol (GO/PVA) polymer (the adsorbent), methylene blue is selected as an object to assess the adsorption capacity. The results showed that, after 93 minutes, the adsorption get the equilibrium state and 86% of methylene blue is adsorbed. Temperature, pH are also studied to find the optimum conditions for the adsorption where by pH 7 has the highest adsorption capacity and in the base environment, the obtained adsorption capacity is very low (<0,15 mg/g). Repeated this process triple times on the same adsorbent (the adsorbent is treated after using each time), there is still 80% of methylene blue is adsorbed. This make save the money and protect the environment so this material promises to be a suitable alternate for adsorbents.
Keywords
graphene oxide, PVA, adsorption, reused
Article Details
References
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[5] Lu Zhang, Zhipeng Wang, Chen Xu, Yi Li, Jianping Gao, Wei Wang, Yu Liu, Journal of Materials Chemistry, Issue 28, 2011, pp.10399 - 10406.
[6] Piming Ma, Luzhong Li, Zhu Wang, Huiyu Bai, Journal of Polymer Research, vol.22(8), 2015, pp.1 – 10.
[7] Ning Wang, Peter Chang, Pengwu Zheng, Xiaofeng Ma, Applied Surface Science, Vol. 314, 2014, pp. 815 – 821.
[8] Hoang V. Tran, Lieu T Bui, Thuy T Dinh, Dang H Le, Chinh D Huynh, Anh X Trinh., Materials Research Express, 2017. 4(3): p. 035701.
[9] Yanhui Li, Qiuju Du, Tonghao Liu, Jiankun Sun, Yonghao Wang, Shaoling Wu, Zonghua Wang, Yanzhi Xia, Linhua Xia, Carbohydrate Polymers, Vol. 95, 2013, pp. 501–507.
[10] Yasemin Bulut, Hatice Karaer, Journal of Dispersion Science and Technology, vol. 36(1), 2015, pp.61-67.