4.8 Article

Electrically Controlled Adsorptive Membranes with Tunable Affinity for Selective Chromium (VI) Separation from Water

Related references

Note: Only part of the references are listed.
Article Engineering, Chemical

Polyamide membrane with nanoscale stripes and internal voids for high-performance nanofiltration

Feng Gao et al.

Summary: Stripe patterned nanofiltration membranes were prepared by regulating the interfacial polymerization process using sulfonated polyether sulfone nanoparticles. The nanoparticles confined the diffusion of piperazine towards the organic phase, resulting in the formation of intensive nanoscale stripes uniformly distributed throughout the membrane. The generation and evolution of the membrane structure from conventional nodular structures to stripe patterns were investigated by optimizing the membrane thickness and incorporating different concentrations of nanoparticles. The resulting membrane, SPES-1.0@NFM-II, showed a distinctive morphology with interconnected labyrinthine networks on both surfaces of the active layer and exhibited enhanced water permeance and excellent divalent salt rejection.

JOURNAL OF MEMBRANE SCIENCE (2023)

Article Chemistry, Physical

A smart and responsive crystalline porous organic cage membrane with switchable pore apertures for graded molecular sieving

Ai He et al.

Summary: In this study, the graded separation of three dyes is achieved by altering the pore size of a porous organic cage composite, demonstrating the potential of single membranes with both high permeance and high rejection.

NATURE MATERIALS (2022)

Article Multidisciplinary Sciences

Microporous polymer adsorptive membranes with high processing capacity for molecular separation

Zhenggong Wang et al.

Summary: In this study, a membrane adsorption material based on a polymer was developed, which could selectively adsorb and separate small organic molecules from water with ultrahigh processing capacity. The adsorption capacity of the material for Rhodamine B was 10-1000 times higher than previously reported adsorptive membranes, and it achieved >99.9% removal of various nano-sized organic molecules.

NATURE COMMUNICATIONS (2022)

Article Engineering, Environmental

Polypyrrole coated molybdenum disulfide composites as adsorbent for enhanced removal of Cr(VI) in aqueous solutions by adsorption combined with reduction

Li Xiang et al.

Summary: The study successfully fabricated PPy/MoS2 composites as efficient sorbents for Cr(VI) removal, showing superior adsorption capacity and cyclic stability. The sorption of Cr(VI) was significantly influenced by pH, with optimal removal efficiency achieved under acidic conditions; the adsorption process was mainly controlled by pseudo-second-order kinetics and Langmuir isotherm model; ion exchange, chemical reduction, and surface chelation played crucial roles in the elimination of Cr(VI).

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Mechanism of Permselectivity Enhancement in Polyelectrolyte-Dense Nanofiltration Membranes via Surfactant-Assembly Intercalation

Yuanzhe Liang et al.

Summary: Intercalating surfactant self-assemblies in the polyelectrolyte multilayer (PEM) can significantly enhance the performance of salt-rejecting dense NF membranes by reducing PEM thickness, increasing pore size, improving surface hydrophilicity, and increasing water permeance without compromising solute rejection. This approach may become universally applicable and cost-effective for enhancing the performance of PEM NF membranes.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Review Engineering, Chemical

Progress in adsorptive membranes for separation ? A review

Shuang Hao et al.

Summary: Adsorptive membranes combine the advantages of adsorption and membrane separation, with applications in water treatment, separation of biochemical products, and solid-phase extraction. However, challenges such as high cost, low adsorption capacity, short residence time, and membrane fouling need to be addressed in future studies.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Chemistry, Multidisciplinary

Fast non-iterative calculation of solvation energies for water and non-aqueous solvents

Sergei F. Vyboishchikov et al.

Summary: The uESE method proposed in the study for calculating solvation free energies showed excellent performance, with predicted solvation energies having a mean absolute error below 1 kcal/mol for neutral solutes and below 3 kcal/mol for ions. The calculated data were found to be almost independent of the quantum-chemical method or basis sets employed.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2021)

Review Engineering, Environmental

Enabling simultaneous redox transformation of toxic chromium(VI) and arsenic(III) in aqueous media-A review

Yu Fu et al.

Summary: The simultaneous conversion of As(III) and Cr(VI) to their less toxic forms is beneficial for the environment and cost-effective. The mechanisms for the oxidation of As(III) and reduction of Cr(VI) through different processes have been explored. Acidity has a positive effect on co-conversion, while the mediated electron transfer process is not significantly affected by dissolved oxygen. Organic compounds may influence the conversion process.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Materials Science, Multidisciplinary

Selective membranes in water and wastewater treatment: Role of advanced materials

Kuichang Zuo et al.

Summary: Membrane separation technology has shown great potential in water treatment, providing new pathways for highly selective separation of pollutants. The focus of research on high selectivity membrane materials and processes is to improve the selectivity of water, ions, and small molecules, and explore future development directions.

MATERIALS TODAY (2021)

Article Environmental Sciences

Electrically Controlled Anion Exchange Based on a Polypyrrole/Carbon Cloth Composite for the Removal of Perfluorooctanoic Acid

Yuhao Tian et al.

Summary: A novel process for PFOA removal from contaminated water was developed using electrically switched ion exchange with PPy deposited on conductive materials. The PPy showed excellent selectivity and regeneration ability in batch experiments, providing a promising method for addressing PFOA contamination in natural aqueous environments.

ACS ES&T WATER (2021)

Article Chemistry, Physical

Efficient evaluation of electrostatic potential with computerized optimized code

Jun Zhang et al.

Summary: An efficient algorithm for evaluating ESP was proposed, which showed comparable or better performance than some state-of-the-art codes for systems like dopamine and remdesivir. The algorithm exhibited good parallelization scaling and was able to evaluate ESP for a system with 4840 GTOs and 259,262 ESP points in 1874 seconds on ordinary hardware.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

Review Engineering, Environmental

Review of Advances in Engineering Nanomaterial Adsorbents for Metal Removal and Recovery from Water: Synthesis and Microstructure Impacts

Jinming Luo et al.

Summary: This critical review discusses the synthesis methods of nanomaterial adsorbents (NAs) and assesses their scalability for full-scale applications. It also examines the impact of NAs structures on metal adsorption and emphasizes the need to prioritize research to balance production costs and feasibility of desired properties at commercial scale quantities. Furthermore, it suggests the establishment of an evaluation protocol for NAs to consider both adsorption capacity and mass transfer kinetics during material discovery stage and long-term testing in real applications.

ACS ES&T ENGINEERING (2021)

Article Nanoscience & Nanotechnology

Convenient but powerful method to dope single-walled carbon nanotube films with iodonium salts

B. Kumanek et al.

APPLIED NANOSCIENCE (2020)

Article Chemistry, Physical

PSI4 1.4: Open-source software for high-throughput quantum chemistry

Daniel G. A. Smith et al.

JOURNAL OF CHEMICAL PHYSICS (2020)

Review Engineering, Environmental

Nanoconfinement-Mediated Water Treatment: From Fundamental to Application

Jieshu Qian et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Chemistry, Multidisciplinary

Molecular Tuning of Redox-Copolymers for Selective Electrochemical Remediation

Kwiyong Kim et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

Review Materials Science, Multidisciplinary

Perspectives regarding metal/mineral-incorporating materials for water purification: with special focus on Cr(vi) removal

Khalid Z. Elwakeel et al.

MATERIALS ADVANCES (2020)

Article Chemistry, Physical

Fast and accurate calculation of hydration energies of molecules and ions

Alexander A. Voityuk et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2020)

Article Chemistry, Multidisciplinary

Selective and Efficient Removal of Fluoride from Water: In Situ Engineered Amyloid Fibril/ZrO2 Hybrid Membranes

Qingrui Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Multidisciplinary

Electrically Pore-Size-Tunable Polypyrrole Membrane for Antifouling and Selective Separation

Xiao Tan et al.

ADVANCED FUNCTIONAL MATERIALS (2019)

Article Chemistry, Physical

Negatively-charged nanofiltration membrane and its hexavalent chromium removal performance

Xiu-Zhen Wei et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

Article Chemistry, Physical

A simple COSMO-based method for calculation of hydration energies of neutral molecules

Alexander A. Voityuk et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2019)

Review Chemistry, Multidisciplinary

Sustainable technologies for water purification from heavy metals: review and analysis

Sreenath Bolisetty et al.

CHEMICAL SOCIETY REVIEWS (2019)

Review Engineering, Environmental

Removal of contaminants of emerging concern by membranes in water and wastewater: A review

Sewoon Kim et al.

CHEMICAL ENGINEERING JOURNAL (2018)

Article Chemistry, Multidisciplinary

Polyaniline Nanofiber Electrodes for Reversible Capture and Release of Mercury(II) from Water

Yoonseob Kim et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Article Multidisciplinary Sciences

Electrochemically-mediated selective capture of heavy metal chromium and arsenic oxyanions from water

Xiao Su et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Multidisciplinary

In Situ Separation of Chemical Reaction Systems Based on a Special Wettable PTFE Membrane

Zhe Xu et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

Article Engineering, Environmental

Dual-Functional Ultrafiltration Membrane for Simultaneous Removal of Multiple Pollutants with High Performance

Shunlong Pan et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2017)

Article Multidisciplinary Sciences

Design and function of biomimetic multilayer water purification membranes

Shengjie Ling et al.

SCIENCE ADVANCES (2017)

Article Nanoscience & Nanotechnology

Amyloid-carbon hybrid membranes for universal water purification

Sreenath Bolisetty et al.

NATURE NANOTECHNOLOGY (2016)

Article Multidisciplinary Sciences

Metal-induced malformations in early Palaeozoic plankton are harbingers of mass extinction

Thijs R. A. Vandenbroucke et al.

NATURE COMMUNICATIONS (2015)

Article Engineering, Chemical

Hierarchically engineered membrane surfaces with superior antifouling and self-cleaning properties

Xueting Zhao et al.

JOURNAL OF MEMBRANE SCIENCE (2013)

Article Engineering, Environmental

High efficient removal of chromium(VI) using glycine doped polypyrrole adsorbent from aqueous solution

Niladri Ballav et al.

CHEMICAL ENGINEERING JOURNAL (2012)

Article Chemistry, Multidisciplinary

Multiwfn: A multifunctional wavefunction analyzer

Tian Lu et al.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2012)

Review Chemistry, Multidisciplinary

A review of water treatment membrane nanotechnologies

MaryTheresa M. Pendergast et al.

ENERGY & ENVIRONMENTAL SCIENCE (2011)

Article Engineering, Chemical

Effect of pH on rejection of hexavalent chromium by nanofiltration

M. Muthukrishnan et al.

DESALINATION (2008)