OOIR: Observatory of International Research

Papers

(The H4-Index of Separation and Purification Technology is 100. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
Zirconium titanium phosphonates for enhanced lanthanide recovery from acidic wastes	476
CO2-enhanced recovery of fulvic acid via activated carbon adsorption: a novel approach to sustainable wastewater treatment	349
Enzyme-grafted nylon membranes for sequential filtration of Tetraselmis chui extract with enhanced protein recovery	293
Advancing CO2 absorption and desorption by mass transfer promoters: Density difference adjustment based on spontaneous interfacial turbulence	268
Editorial Board	261
Development of a slow-release CO2 absorbent material for alkaline activation of persulfate oxidation of TCE and CO2 capture	241
Polyaniline-based magnetically-driven microbots for improving enantioselective separation toward amino acids	229
Towards sustainable soybean waste management: Bio-based solvent extraction of isoflavones for food and cosmetic applications	229
1,3-Dioxolane production via reactive distillation combined with vapor permeation: Experiments and modelling	217
Editorial Board	198
A kinetic approach to the mechanisms of sedimentation and coalescence of a loose-packed emulsion	195
Green biopolymer stabilizer induced robust removal of vanadium (V) by sulfidated microscale zerovalent iron	194
Combination of genetic algorithm and CFD modelling to develop a new model for reliable prediction of normal shock wave in supersonic flows contributing to carbon capture	179
Reactive membranes for groundwater remediation of chlorinated aliphatic hydrocarbons: Competitive dechlorination and cost aspects	179
Optimised “green solvent” extraction of long-chain menaquinones (Vitamin K2) from wet Lactococcus lactis biomass	174
Testing carbon structures for metal-free catalytic/photocatalytic ozonation to remove disinfection by-product formation potential	168
Novel application of (NH4)2Mo3S13 for vanadium adsorption: Experiments, characterization, kinetic and equilibrium modeling	168
Theoretical investigation on two-dimensional conjugated aromatic polymer membranes for high-efficiency hydrogen separation: The effects of pore size and interaction	165
Impacts of water hardness on coagulation-UF-NF process using aluminum salts	163
Comparing methods for protozoa removal in activated sludge	163
Reduction of total dissolved solids of pre-treated flowback water by two-stage nanofiltration: A gel layer based model to predict the system performance and scale up	162
Theoretical and experimental investigations of time-dependent mass transfer mechanism of fine particulate matter under the sink effect	161
Imaging of particle deposition and resulting flow field during flocculation filtration within a granulated activated carbon filter	159
Editorial Board	158
The efficient degradation of carbamazepine by Cu-Fe bimetallic composite carbon derived from the waste cation exchange resins: Mechanism, ecotoxicity, and continuous flow catalysis	156

Aerobic and anaerobic regulation induced different degradation behaviors of parachloronitrobenzene in soil by microwave activated persulfate oxidation	155
Deep separation of critical metals of Mo and Re from waste solution by stepwise precipitation flotation: Selective chelation underlying separation mechanism	153
Liquid-liquid extraction performance in a miniaturized magnetic extractor	148
Open-air plasma deposition of polymer-supported silica-based membranes for gas separation	148
Environmental remediation of novel Entities: Deep eutectic solvents as advanced water treatment technologies	148
Multilevel screening and mechanism analysis of ionic liquids for separating pyridine from coal pyrolysis model oil	146
Triblock copolymers as versatile constituents of double stimuli-responsive ionic-liquid-based aqueous biphasic systems	144
Editorial Board	143
Composite alginate membranes with dispersed MQFP hard magnet network as a new concept for highly efficient pervaporative dehydration of ethanol/water mixture	143
Fabrication of robust zirconium metal-organic frameworks for efficient C3H6/C2H4 separation	141
Flexible solar absorber using hydrophile/hydrophobe amphipathic Janus nanofiber as building unit for efficient vapor generation	141
Ion exchange resin – Bipolar membrane electrodialysis hybrid process for reverse osmosis permeate Remineralization: Preparative ion exchange chromatography for Ca2+ and Mg2+ recovery	139
Fabrication of thermally stable polyamide nanofiltration membranes via interfacial polymerization modulated with acid acceptors	137
Enhanced electrochemical harmless removal of ammonia nitrogen and simultaneously recovery of phosphorus with peroxydisulfate activated by Fe inductive electrode	137
Adsorption-induced chemical reaction for in situ immobilization of radioactive anions on pristine β-Bi2O3 microflowers	137
Is catalytic ozonation always an efficient treatment for refractory pollutant in various water matrices?	137
Nanoengineering electrode for yttria-stabilized zirconia-based symmetrical solid oxide fuel cells to achieve superior output performance	134
A robust floating oxygen-doped graphitic carbon nitride sheet for efficient photocatalytic CO2 conversion	131
A redox-mediated polymer with extended π-delocalization for efficient Cr3+ elimination via capacitive deionization	130
Co nanoparticles encapsulated in nitrogen-doped nanocarbon derived from cobalt-modified covalent organic framework as peroxymonosulfate activator for sulfamerazine degradation	129
Enhancing ferrate(VI) oxidation by ferrous iron for pretreating shale gas produced water and mitigating ultrafiltration membrane fouling	128
Oxidation dissolution mechanism of copper matte anode	128
Model prediction and experimental study on the NH3 recovery from ammonia-nitrogen wastewater by air gap diffusion distillation	127
Carbon-mediated iron valence state transformation for deep aluminum removal toward battery-grade FePO4 recycling	126
Significantly enhanced photocatalytic activity by surface acid corrosion treatment and Au nanoparticles decoration on the surface of SnFe2O4 nano-octahedron	126
Construction of sulfur-doped MOF-derived carbon materials with bimetallic-sulfur-carbon triphasic synergy for the catalytic ozonation of atrazine	124
Conductive carbon/Al2O3 mixed-matrix membrane cathode for efficient electrocatalytic production of H2O2	123
Thermal-responsive PNIPAM/UiO-66 aerogels for controllable water capture and release	122
Enhanced singlet oxygen-dominated heterogeneous catalytic oxidation via K-N/C sites for sustainable wastewater treatment	121
Enhancement of Co(II) removal via coupling of electrosorption and electrodeposition using asymmetric electrode from wastewater	121
Baculovirus purification with functionalized non-woven fibers: Impact of residence time, binding strength, and ligand chemistry	121
Hybrid composite membrane with highly interconnected microchannels for robust methane separation from wastewater	121
Synergistically optimized boron-doped nanocrystalline diamond anodes for enhanced durability in electrochemical wastewater oxidation	120
A monolithic azacalix[4]pyridine column for high-resolution and high-efficiency pressurized capillary electrochromatographic separation	120
Design and synthesis of carbazole-based conjugated microporous polymers for CO2 capture	119
Electrochemically-mediated treatment of sulfur dioxide and purification of carbon dioxide coupled with hydrogen production	119
Nonradical-dominated pathway toward selective catalytic ozonation of NH4+-N to N2 in drinking water over birnessite	117
Study on the process of producing crotonaldehyde from acetaldehyde catalyzed by Zr-β zeolite	117
Design of a bifunctional prepolymer for simultaneously facile preparation and highly efficient electrodialysis of anion exchange membranes	117
Local polarization electric field promoted the active sites formation on the piezo-photocatalytic BaCaBO3F containing OVs and N doping to effectively degradation of oxytetracycline in water	116
Kinetic process assessment of H2 purification over highly porous carbon sorbents under multicomponent feed conditions	116
Unlocking the potential of ionic liquids in Anion-Pillared MOFs for enhanced He/H2 separation Performance: A combined computational screening and Machine learning study	116
Liquid nitrogen quenching-induced grain boundary-rich intermetallic compound/metal/carbon composites for efficient capacitive deionization	116
Asymmetric polyethersulfone ultrafiltration membranes with high perm-selectivity of nitrate ions for energy-efficient water treatment	115
Editorial Board	114
Donnan dialytic transport and biological removal of yttrium from multi-element solutions	114
Electrocatalytic reductive removal of arsenite from nonferrous smelting waste acid on copper electrode	113
Insight into the photothermal boosted ofloxacin removal by magnetic CuFe2O4/pyrite waste catalyst: Mechanism, degradation pathways, and toxicity evaluation	112
Acid-free ultrasonic-enhanced hydrothermal leaching of copper and zinc from polymetallic sulfide secondary concentrates	111
Application of catalytic hydrodechlorination for the fast removal of chlorinated azole pesticides in drinking water	111

Highly efficient anodic oxidation of organic pollutants using Ti4O7 particle anode: Experimental and theoretical study of the operational and structural parameters influence	110
Super high gas separation performance membranes derived from a brominated alternative PIM by thermal induced crosslinking and carbonization at low temperature	110
Assessment of the suitability of adsorption water treatment as a concentration process for resource recovery and wastewater treatment	108
Highly efficient extraction of palladium(II) in nitric acid solution by a phenanthroline-derived diamide ligand	108
Geobacter mediated self-assembly preparation of MIL-100(Fe)@Fe3O4 for Fenton-like reaction catalysts	108
Supramolecular-solvent based extraction of hydroxytyrosol from brines of the processing of table olives	107
Peroxymonosulfate activation by suspended biogenic manganese oxides for polishing micropollutants in wastewater effluent	106
Acanthosphere-like CeO2 with porous spikes for efficient diesel soot catalytic combustion	106
Productivity for free: Residence time gradients during loading increase dynamic binding capacity and productivity	105
Fabrication of high-performance forward osmosis membranes via co-solvent-assisted support-free interfacial polymerization	105
Management of secondary effluent using novel membrane technology to recover water and magnesium ions for phosphate precipitation: An integrated pilot-scale study	105
Shear-induced oil separation from a sand particle moving in water	104
Highly effective quantum sieving of hydrogen isotopes on flexible metal-organic frameworks with mobile ligands	104
The origin of selective adsorption desulfurization by Fe single atom adsorbents on hexagonal boron nitride surface	103
Solar-driven water disinfection synergized with micro-nano bubbles: photothermal effects and bubble-enhanced ROS generation of bismuth-carbon nanocomposites	103
Unravelling fouling characteristics in a point-of-use water purifier: Bridging compositional evolution to spatial distribution	102
An integrated process of electrochemical membrane reactor coupled with O3 and aerobic biological treatment for organic removal from soil leachate during contaminated soil remediation	102
Cross-linked copolyimide-P84/CAU-10-H/branched polyethyleneimine membranes for organic solvent nanofiltration	102
Magnetically recoverable Fe3O4/MoS2/BiOI microspheres for visible light water disinfection: Molecular mechanism and transcriptomic insights	101
Single Nickel sites - easy separation and high-performance catalyst for the production of β-Nitro alcohols	101
Sustainable and recyclable starch-based ion exchange resin with superior exchange capacity and swelling resistance	101
Bismuth mediated tuning of electronic structure and enhanced adhesion in molybdenum based bifunctional catalysts for efficient water splitting	101
Nitrogen vacancy-modified g-C3N4 nanosheets controlled by deep eutectic solvents for highly efficient photocatalytic atrazine degradation: Non-radical dominated holes oxidation	100
Well-dispersed Prussian blue analogues connected with carbon nanotubes for efficient capacitive deionization process	100
Single-step purification of para-xylene from xylene isomers through a synergistic combination of two robust aluminum-based metal–organic frameworks	100