Converting untreated waste office paper and chitosan into aerogel adsorbent for the removal of heavy metal ions

Carbohydrate Polymers
Zhanying LiYongjun Chen

Abstract

The utilization of waste paper, an obsolete recyclable resource, helps to save resources and protect environment. In this paper, an aerogel was prepared to convert the waste paper into a useful material, which was used to adsorb heavy metal ions and handle water pollution. Combining waste office paper and chitosan, the aerogel obtained the enhanced mechanical strength, acid resistance and high adsorption capacity (up to 156.3 mg/g for Cu2+). This adsorption process obeyed the pseudo-second order model and the Langmuir model. The research showed that a coordination compound was formed between amino group and Cu2+ during the adsorption process. The adsorbent could be regenerated well in 0.1 M H2SO4 with up to 98.3% desorption efficiency. The low cost, environmental friendliness, excellent adsorption capacity and regeneration ability made this novel aerogel a promising adsorbent for heavy metal ions. And this conversion is an effective reuse way of waste paper too.

References

May 18, 2005·International Journal of Biological Macromolecules·Ilauro S LimaClaudio Airoldi
Aug 14, 2010·Journal of Colloid and Interface Science·Sheng-Tao YangAoneng Cao
Dec 1, 2012·Bioresource Technology·Yasunori BabaYutaka Nakai
Mar 17, 2015·Waste Management·Kostyantyn PivnenkoThomas F Astrup
Jul 16, 2016·Critical Reviews in Biotechnology·Arunika Saxena, Prakram Singh Chauhan

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Citations

Jul 6, 2020·Environmental Science and Pollution Research International·Yaoning ChenMeiling Li
Sep 12, 2020·Advances in Colloid and Interface Science·Maryam Hasanpour, Mohammad Hatami
Jun 15, 2021·Nanotechnology·Jasmin S ShaikhChandrakant D Lokhande
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Paola FrancoIolanda De Marco
Nov 21, 2019·Journal of Agricultural and Food Chemistry·Jie YangQingjie Sun
Aug 21, 2021·PeerJ·Tatjana PaulauskieneMindaugas Ziogas

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