Potentiality of Graphene Oxide and Polyoxometalate as Radionuclides Adsorbent to Restore the Environment after Fukushima Disaster: A Mini Review

Abstract

This paper discusses the promising candidate of excellent materials, graphene oxide (GO) and polyoxometalates (POMs), for radionuclide adsorbent. In this perspective, the unique properties of GO and POMs make them ideal candidates for developing new composites having the ability to adsorb radionuclides, and several essential things are reviewed. First, the anchoring mechanism to deposit POM on the GO surface area by (i) carboxylation method, (ii) covalent bonding, and (iii) impregnation method. Second, the radionuclides removal mechanism is described in several systems: (i) coagulation, (ii) electrostatic interaction, (iii) ion trapping, and (iv) H+-exchange. Third, the experimental condition that employed to enlarge the sorption capacity such as (i) pH adjustment, (ii) employing multiple oxidations, and (iii) cation charge. A thorough understanding of the POM-anchored GO material can pave the way for future research on similar materials. It can also help in understanding the nature of the interactive collaboration present between GO and POM.

Fabrication of new in‐situ ternary nano/microcomposite LDH/Ag2O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO2 capture material

“…The applications include adsorbent materials, magnetic materials, biomedical functionality, hybrid materials, environmental remediation, catalysts, ion exchange processes, supercapacitors, sensors, water treatment, and CO 2 gas removal. 18,19,[24][25][26][27][28][29][30][31][32][33][34][35] LDH exhibits significant promise for low-temperature CO 2 capture due to its rapid adsorption and desorption rate, good cyclic stability, and high selectivity towards CO 2 . 36,37 Although LDH has exhibited favorable attributes, most LDH studied thus far have had a limitation in their ability to adsorb CO 2 .…”

“…The unique structure of LDH demonstrates a wide range of potential uses, including its use as a composite material with several functional capabilities. The applications include adsorbent materials, magnetic materials, biomedical functionality, hybrid materials, environmental remediation, catalysts, ion exchange processes, supercapacitors, sensors, water treatment, and CO 2 gas removal 18,19,24–35 . LDH exhibits significant promise for low‐temperature CO 2 capture due to its rapid adsorption and desorption rate, good cyclic stability, and high selectivity towards CO 2 36,37 …”

Improvement of Cs detection performance and formation of CsCl and Cs nanoparticles by tuning graphene oxide quantum dot-based nanocomposite

“…In recent years, graphene oxide (GO) and graphene oxide quantum dots (GOQDs) are widely studied in several applications such as metal adsorbent (Cs + , Eu 3+ , Sr 2+ ), 10,11 and designed as uorescence probes by considering their quantum connement and the edge effect. 12,13 In addition, the GO and GOQDs have almost similar properties because they have various oxygen functional groups.…”