In this section, you can access to the latest technical information related to the FUTURE project topic.

In situ polymerized poly(acrylic acid)/alumina nanocomposites for Pb2+ adsorption

In this study, two poly(acrylic acid)/alumina (PAA/alumina) nanocomposites with varied polymer loadings were prepared via in situ polymerization of preadsorbed acrylic acid. One composite would have a ~1/4?monolayer polymer coverage, while the other had a ~2?monolayer coverage. The produced composite materials were characterized in the adsorptive behavior of Pb2+ from aqueous solution. When there was less PAA produced in a nanocomposite sample, there was higher Pb2+ sorption capacity due to potentially less blocked alumina pores by in situ formed PAA. Isothermal and kinetic models for Pb2+ sorption were applied by considering the effects of the initial Pb2+ concentration and the contact time. The adsorption kinetics was best expressed using the pseudo?second?order equation. Through the isothermal studies, the maximum Pb2+ monolayer adsorption capacity of 167.79 mg/g was recorded for the composite with higher PAA loading.

» Author: Ya?Ping Wang , Peng Zhou , Shi?Zhong Luo , Sijie Guo , Jing Lin , Qian Shao , Xingkui Guo , Zhongqing Liu , Jun Shen , Bin Wang , Zhanhu Guo

» Reference: doi:10.1002/adv.21969

» Publication Date: 17/04/2018

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