Showing papers in "Separation and Purification Technology in 2019"

TL;DR: In this article, the effect of the experimental conditions (pH, initial concentration (Co), surfactant loading, etc.) on the adsorption capacity is also appraised.

TL;DR: In this article, different nanocomposite membrane fabrication and modification techniques for mixed matrix membranes and thin film membranes for both pressure driven and non-pressure driven membranes using different types of nanoparticles, carbon-based materials, and polymers are discussed.

TL;DR: In this paper, the feasibility of desorbing and regeneration of chitosan-based adsorbents using various desorption agents such as acids, alkalis, salts, and chelating agents was explored.

TL;DR: Of these methods, membrane-based separation processes (MBSPs) are effective over the conventional techniques for providing clean water from wastewater streams at an affordable cost with minimum energy requirement.

TL;DR: In this paper, a facile bottom-up synthetic route for photocatalytic degradation of tetracycline (TC) was proposed, which can help to regulate the electronic structure of CN and provide more reactive sites.

TL;DR: A review of the recent progress on the synthesis and applications of carbon nanotube (CNT) based membranes in water treatment can be found in this paper, where various synthesis techniques for the preparation of CNT based membranes are discussed.

TL;DR: In this article, the preparation and electrochemical properties of Boron-doped diamond (BDD) film electrode are focused first, then, the electrocatalytic process and degradation mechanisms on BDD electrodes based on the electrochemical oxidation of refractory pollutants in recent years.

TL;DR: In this article, a 2D/2D hierarchical structure of CuInS2/g-C3N4 composite was developed to enlarge the contact region in the heterojunction interface and provide more active reaction sites.

TL;DR: In this article, the authors investigated the removal of phosphate from water using a new baffle plates aluminium-based electrochemical cell (PBPR) taking consideration the influence of key operating parameters.

TL;DR: In this article, a series of p-n junction Ag2O/g-C3N4 photocatalysts were successfully prepared through a facile chemical precipitation method at room temperature.

TL;DR: In this paper, a first and systematical summary on ionic liquids incorporate in membrane processes for VOCs or CO2 separation, including supported ionic liquid membranes (SILMs), ILs composite polymer membranes (ILPMs), ILLM contactors, poly(ionic liquid)s membranes (PILMs).

TL;DR: A new PVDF@pDA@SiO2 nanocomposite membrane was fabricated by virtue of the surface modification of polydopamine anchored SiO2 on PVDF membrane through a facile and eco-friendly preparation process as discussed by the authors.

TL;DR: In this article, a photocatalyst, g-C3N4/Ti3C2 (CNTC) composite, was prepared by an evaporation-induced self-assembly method.

TL;DR: In this paper, zero valent iron (ZVI) was used for photochemical exclusion of methyl violet from aqueous solution, which was synthesized via ultrasonication method.

TL;DR: In this article, a series of Fe3O4/ZnO/graphene composites were used as heterogeneous catalysts during the Fenton oxidation reaction for the degradation of the dyes, Congo red (CR) and methylene blue (MB), in aqueous solutions in the dark or under light and ultrasound, separately or simultaneously.

TL;DR: Graphene oxide embedded calcium alginate (GOCA) beads were synthesized and further functionalized/reduced with polyethylenimine to increase their adsorption capacity towards heavy metal ions as mentioned in this paper.

TL;DR: In this article, a direct Z-scheme LaFeO3/SnS2 hybrid was successfully constructed via a facile hydrothermal method, which not only promoted the visible light absorption, but also facilitated the charge separation and transfer efficiency and prolonged lifetime of charge carriers.

TL;DR: In this paper, an environmentally benign process was proposed for the recovery of high value-added metals (Co and Li) from typical waste cathode materials (LiCoO2) of spent lithium-ion batteries using mild tartaric acid as both leaching and precipitating reagent.

TL;DR: In this article, the authors have prepared fluorine doped graphene (FG) as high dispersed adsorbent by sonochemical exfoliation method GdVO4 nanoparticles were anchored on FG to fabricate Gd VO4/FG photocatalyst.

TL;DR: In this paper, a ternary heterostructure photocatalyst was synthesized by coanchoring the graphitic carbon nitride quantum dots and nitrogen-doped carbon quantum dots on the surface of BiVO4 microspheres.

TL;DR: In this article, rare metal modified WO3 composites were synthesized using hydrothermal approach to produce clean hydrogen energy and degrade the harmful dyes, and the results demonstrated that excellent photocatalytic performance was achieved at 2% Gd modified composites with high surface area and suppressed recombination of charge-carriers.

TL;DR: In this paper, a novel magnetic MnO2/MnFe2O4 nanocomposite was successfully fabricated by hydrothermal method and applied to activate PMS for Rhodamine B (Rh B) degradation.

TL;DR: In this article, the degradation of p-nitrophenol (PNP) was investigated using DBD plasma in situ, and an addition of both S 2 O 8 2 - ( OH and SO 4 · - through Fenton-like reactions and PS activation process.

TL;DR: In this article, a magnetically separable nanoscale CuFe2O4 synthesized by co-precipitation-calcination method was employed as a heterogeneous catalyst to activate peroxymonosulfate (PMS) for the generation of powerful oxidizing sulfate radical (SO4 −).

TL;DR: In this article, the authors present the recent progress in utilizing peroxidases and laccases for the remediation of phenolic wastewaters and provide several ideas for addressing the limitations of the process and improving its efficiency and viability.

TL;DR: In this article, the best sorbents available in real-world treatment of airborne volatile organic compounds (VOCs) were evaluated using four metrics: 10% breakthrough volume, space velocity, regeneration cycles, and cost.

TL;DR: In this article, the authors focused on sulfuric acid leaching of LiNixCoyMnzO2 cathode material for resource recovery of all the critical and rare metals from spent lithium ion batteries.

TL;DR: In this article, a peroxone combined with a TiO2/UV system with a ratio between the oxygen source from the oxidant to chemical oxygen demand (COD) of the model wastewater (rox) of 0.5 and 100 mgTiO22/L was the optimal process.

TL;DR: In this paper, the current trend of ammonia removal means and the approach of fabricating adsorptive membrane is discussed and the future prospective on the utilisation of natural zeolite as an adaption membrane is also conferred.

TL;DR: In this article, the authors accentuated on preparation of phosphorous doped g-C3N4modified AgBr/V2O5 (AgBr/VO) nanocomposite and its applicability in photocatalysis of phenol.