Bio-Inspired Preparation of Clay-Hexacyanoferrate Composite Hydrogels as Super Adsorbents for Cs.

ACS Applied Materials & Interfaces
Huagui ZhangDavid Harbottle

Abstract

A facile and low-cost fabrication route, inspired by the adhesive proteins secreted by mussels, has been developed to prepare a clay-based composite hydrogel (DHG(Cu)) containing hexacyanoferrate (HCF) nanoparticles for the selective removal of Cs+ from contaminated water. Initially, montmorillonite was exfoliated prior to coating with a thin layer of polydopamine (PDOPA) via the self-polymerization of dopamine. Mixing the composite (D-clay) with the HCF precursor, followed by the addition of copper ions, led to the self-assembly of the polymer-coated exfoliated clay nanosheets into a three-dimensional network and in situ growth of KCuHCF nanoparticles embedded within the gel structure. Analytical characterization verified the fabrication route and KCuHCF immobilization by a copper-ligand complexation. Rheology testing revealed the composite hydrogel to be elastic under low strain and exhibited reversible, self-healing behavior following high strain deformation, providing a good retention of KCuHCF nanoparticles in the membrane. The adsorbent DHG(Cu) showed a superior Cs+ adsorption capacity (∼173 mg/g), with the performance maintained over a wide pH range, and an excellent selectivity for Cs+ when dispersed in seawater at low ...Continue Reading

References

Oct 20, 2001·Environmental Science & Technology·Y LinM Engelhard
Jul 9, 2002·Environmental Science & Technology·Benjamin C BostickJon Chorover
Oct 20, 2007·Science·Haeshin LeePhillip B Messersmith
Feb 1, 2011·Proceedings of the National Academy of Sciences of the United States of America·Niels Holten-AndersenJ Herbert Waite
Jan 8, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Shu HuangXuehong Lu
Jun 12, 2013·Journal of Hazardous Materials·Noriyuki IsobeAkira Isogai
May 24, 2014·Angewandte Chemie·Shuvo Jit DattaKyung Byung Yoon
Jul 2, 2014·Journal of Hazardous Materials·Md Rabiul AwualYoshihiro Okamoto
Jul 8, 2015·ACS Applied Materials & Interfaces·Rui ZhengWuli Yang
Sep 6, 2015·Journal of Hazardous Materials·Shubin YangMasaaki Nagatsu
Dec 10, 2015·ACS Nano·Qiaochu LiNiels Holten-Andersen
Oct 26, 2016·Journal of Hazardous Materials·Hai-Rong YuLiang-Yin Chu
Jun 13, 2020·ACS Applied Materials & Interfaces·Huagui ZhangDavid Harbottle

❮ Previous
Next ❯

Citations

Jan 21, 2021·International Journal of Molecular Sciences·Joan Estelrich, Maria Antònia Busquets
Sep 17, 2020·ACS Applied Materials & Interfaces·Ecaterina Stela DraganCristian Dragos Varganici
Jun 13, 2020·ACS Applied Materials & Interfaces·Huagui ZhangDavid Harbottle

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.