Study on the Adsorption Properties of Oxalic Acid-Modified Cordierite Honeycomb Ceramics for Neutral Red Dyes.

Removal of organic dyes from water by monolithic adsorbents is considered as an efficient and no-secondary pollution method. Herein, for the first time cordierite honeycomb ceramics (COR) treated with oxalic acid (CORA) were synthesized. This CORA exhibits outstanding removal efficiency toward the azo neutral red dyes (NR) from water.

Enhanced Electrochemical Performance of LiNiMnO Composite Cathodes for Lithium-Ion Batteries by Selective Doping of K/Cl and K/F.

K/Cl and K/F co-doped LiNiMnO (LNMO) materials were successfully synthesized via a solid-state method. Structural characterization revealed that both K/Cl and K/F co-doping reduced the LiNiO impurities and enlarged the lattice parameters compared to those of pure LNMO. Besides this, the K/F co-doping decreased the Mn ion content, which could inhibit the Jahn-Teller distortion and was beneficial to the cycling performance.

Synthesis and Application of a Phosphorous-Free and Non-Nitrogen Polymer as an Environmentally Friendly Scale Inhibition and Dispersion Agent in Simulated Cooling Water Systems.

A novel phosphorus-free and non-nitrogen scale inhibition and dispersion agent was synthesized from epoxysuccinic acid (ESA), itaconic acid (IA), and sodium methyl propylene sulfonate (SMAS). It was characterized by infrared spectroscopy (IR), nuclear magnetic resonance (NMR), and elemental analysis, and its molecular weight and distribution were determined by gel permeation chromatography (GPC). Static experimental methods were used to evaluate the scale inhibition against CaCO, Ca(PO), and CaSO.

Facile Preparation of Rod-like MnO Nanomixtures via Hydrothermal Approach and Highly Efficient Removal of Methylene Blue for Wastewater Treatment.

In the present study, nanoscale rod-shaped manganese oxide (MnO) mixtures were successfully prepared from graphitic carbon nitride (C₃N₄) and potassium permanganate (KMnO₄) through a hydrothermal method. The as-prepared MnO nanomixtures exhibited high activity in the adsorption and degradation of methylene blue (MB). The as-synthesized products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), surface area analysis, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS).

Manganese oxide doping carbon aerogels prepared with MnO coordinated by N, N - dimethylmethanamide for supercapacitors.

Carbon aerogels with excellent conductive characteristics and high specific capacitance have attracted more and more interests for next-generation energy storage applications. Three-dimensional interconnected MnO/carbon aerogel supercapacitor electrodes are prepared by a novel doping method using MnO coordinated by N, N-dimethylmethanamide (DMF). The coordinative MnO (DMF/MnO) plays a key role in the sol-gel process of resorcinol and formaldehyde.

A Comparison of Electrochemical Performance of Carbon Aerogels with Adsorption Metal Ions for Super Capacitors.

Environmental problems caused by metal ions have caused widespread concern in recent years. In this work, carbon aerogels (CAs) adsorbing different metal ions were prepared. The adsorption performance and kinetics of metal ions (Cu(II), Cr(VI), and Fe(III)) on carbon aerogels were systematically investigated.

Carbon aerogel-based supercapacitors modified by hummers oxidation method.

Carbon aerogels of an inter-connected three-dimensional (3D) structure are a potential carbon material for supercapacitors. We report a new oxidation modification method to prepare a series of modified carbon aerogels (OM-CA) by Hummers oxidation method. Oxidation-modified carbon aerogels (OM-CA) are obtained from carbon aerogel powders oxidized by Hummers method.

Dual-porosity MnO cubes for highly efficient dye adsorption.

Dual-porosity materials containing both macropores and mesopores are highly desired in many fields. In this work, we prepared dual-porosity MnO cube materials with large-pore mesopores, in which, macropores are made by using carbon spheres as the hard templates, while the mesopores are produced via a template-free route. The attained dual-porosity MnO materials have 24nm of large-pore mesopores and 700nm of macropores.