Showing papers in "Separation and Purification Technology in 2020"

TL;DR: A critical review of the recent research developments of VOCs adsorption materials and the key factors controlling the VOC's adaption process is provided in this article. But, the authors do not provide a detailed analysis of the specific surface area, pore volume, and surface chemical functional groups.

TL;DR: In this paper, the authors provide insights into recent approaches of various types of materials and methods applied in oily wastewater treatment for hydrophilic membranes and the methods used to reduce the fouling issues within the membrane for oil/water emulsion separation.

TL;DR: In this article, a review of the electrospun nanofiber membrane for wastewater treatment is presented, where the influencing factors of electrospinning technology and the research progress in the preparation of nanofibers with different morphology are discussed.

TL;DR: In this article, a critical review provides a benchmark framework of understanding on the state of the art of Fenton, photo-Fenton, electro-fenton and related technologies.

TL;DR: In this article, the removal of methylene blue, rhodamine B, and methyl orange in water under UV/simulated solar illumination was then studied to evaluate the photocatalytic performance of these composites.

TL;DR: These optimized filters based on rigorous engineering approach provide the badly needed technology for protecting the general public from the deadly airborne COVID-19 and other viruses, and nano-aerosols from air pollution which lead to chronic diseases.

TL;DR: In this paper, a highly effective rGO-BiVO4-ZnO photocatalyst was synthesized by hydrothermal method and characterized by XRD, FE-SEM, HR-TEM, XPS, Photoluminescence, FT-Raman, FT IR and Diffuse reflectance spectroscopy.

TL;DR: In this paper, an organic-inorganic hybrid PW12/CN@Bi2WO6 composite photocatalyst was prepared: PW 12/CN composite was prepared by heating H3PW12O40, melamine and phytic acid; PW12 /CN/Bi 2 WO6 was synthesized via PW12 and Bi 2 W O6 by hydrothermal method.

TL;DR: In this article, a nanorod α-MnO2 loaded palygorskite composite was used to activate peroxymonosulfate (PMS) for Rhodamine B (RhB) degradation.

TL;DR: In this paper, the separation of liquid-liquid emulsions is a challenging problem that has gained importance with the development of unconventional oil resources and large volumes of water contaminated by emulsified oil need to be treated for safe disposal or efficient reuse.

TL;DR: In this article, the red mud/g-C3N4 (RM-CN) composite was directly prepared via one-step thermal polymerization method using melamine and industrial waste residue (red mud) as raw materials.

TL;DR: In this paper, an ultrasonic assisted extraction (UAE) procedure with selected deep eutectic solvents (DES) as solvent was first designed to simultaneously optimize the total phenolic/flavonoid content (TPC/TFC) and antioxidant activities of Moringa oleifera L. leaves (MOLs) by using response surface methodology (RSM).

TL;DR: In this article, the effects of scavengers have a major role in SSZ degradation with respect to other reactive species and GC-Mass analysis was done for detecting the degradation intermediates formed during the photodegradation process.

TL;DR: In this article, the photocatalytic performance of monoliths was estimated by degradation of model-pollutant methylene blue (MB) under visible-light illumination, which revealed that the holes were governing reactive-species in the reaction.

TL;DR: A ternary dual Z-scheme heterojunction photocatalyst composed of Ag3PO4, AgBr and g-C3N4 was prepared by a facile chemical deposition method as mentioned in this paper.

TL;DR: In this paper, the effects of lignocellulosic biomass as well as pyrolysis, activation and modification conditions on the physicochemical properties of biochars and their adsorption capacities are discussed.

TL;DR: In this paper, a facile solvothermal method was used to design and prepared Er3+/Yb3+ co-doped Bi4O5I2 nanosheets.

TL;DR: In this paper, the authors present a comprehensive literature review of MOF-based membranes in water purification, and suggest future research trends by identifying insufficiencies of current knowledge.

TL;DR: In this paper, the authors proposed a sequence of processes: electrocoagulation (EC), electrooxidation (EO), and peroxymonosulfate (PMS)/UV/CuFe2O4 (sulfate radical-based advanced oxidation process, SR-AOP) for treatment of landfill leachate.

TL;DR: In this article, magnetic CoFe2O4/graphene oxide (GO) composites are synthesized by a facile hydrothermal method, where the structure, morphology and magnetic properties of as-synthesized adsorbents are characterized by XRD, FTIR, Raman spectra, SEM, TGA and VSM.

TL;DR: In this paper, photo-catalytic membrane reactors (PCMRs) are comprehensively described and compared on the basis of their performance to remediate persistent organic pollutants (POPs) in the wastewater.

TL;DR: In this article, a facile three-step method was adopted to synthesize MgFe2O4/conjugated polyvinyl chloride (CPVC) nanocomposite.

TL;DR: In this paper, a comparative study on the adsorption of typical antibiotics (tetracycline and sulfadiazine) and heavy metals (Cu(II) and Zn(II)) onto graphene oxides (GO), a promising nano-adsorbent, from both experimental and theoretical viewpoints were studied.

TL;DR: In this article, the reduced graphene oxide (RGO)/polydopamine (PDA)/titanium carbide (MXene) composites were prepared by dopamine modification method.

TL;DR: A concise review of both adsorptive and catalytic behavior of new materials derived from polyaniline is presented in this article, where the attention was directed to the preparation protocles of PAn-derived materials along with the role of PAN in the related applications.

TL;DR: In this paper, a biochar-supported zero-valent iron (S-nZVI/BC) was employed as a catalyst to activate persulfate (PS) to remove the ciprofloxacin (CIP).

TL;DR: In this article, a triple-layered double Janus NF membrane was prepared with polyethersulfone (PES) substrate membrane, a carboxylated cellulose nanocrystal (CNC-COOH) interlayer and an ultra-thin polyamide (PA) layer via interfacial polymerization of polyethylenimine and trimesoyl chloride.

TL;DR: In this article, a carbon dots (CDs) modified porous ZnSnO3 cubic photocatalyst was designed and synthesized using a simple precipitation-calcination method, which was to utilize the up-conversion photoluminescence performance and the ability of electronic transfer of CDs, further broadening the visible light absorption range and accelerating the separation of the electron-hole pairs.

TL;DR: In this paper, molybdenum disulfide (MoS2) was used to accelerate peroxymonosulfate (PMS) activation and the Fe2+/Fe3+ cycle through the reaction of Mo4+ and Fe3+ was employed to significantly improve the efficiency of Fe 2+/PMS on sulfamethoxazole (SMX) degradation.

TL;DR: In this article, defect engineering and cocatalysts were combined to synthesize CoP/CNx composite photocatalyst, which not only strongly expands the visible-light absorption but also effectively restrains the recombination of photoinduced electron holes, hence greatly improving the photocatalytic degradation performance of tetracycline (TC).