OOIR: Observatory of International Research

Papers

(The H4-Index of Separation and Purification Technology is 102. 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 2021-12-01 to 2025-12-01.)

Article	Citations
Accurate evaluation on contribution of typical active species for degrading phenolic pollutants in peroxymonosulfate activation system	461
Zirconium titanium phosphonates for enhanced lanthanide recovery from acidic wastes	342
CO2-enhanced recovery of fulvic acid via activated carbon adsorption: a novel approach to sustainable wastewater treatment	291
Development of a naphthalenediimide-based metal-organic framework for ultrafast capture of Th(IV) from aqueous solutions	285
Enzyme-grafted nylon membranes for sequential filtration of Tetraselmis chui extract with enhanced protein recovery	280
Advancing CO2 absorption and desorption by mass transfer promoters: Density difference adjustment based on spontaneous interfacial turbulence	264
Editorial Board	255
Development of a slow-release CO2 absorbent material for alkaline activation of persulfate oxidation of TCE and CO2 capture	235
Polyaniline-based magnetically-driven microbots for improving enantioselective separation toward amino acids	228
Towards sustainable soybean waste management: Bio-based solvent extraction of isoflavones for food and cosmetic applications	223
Visible light-induced photocatalytic oxidation of gaseous ammonia on C surface-coated N-TiO2 catalyst: synthesis, properties and mechanism	223
1,3-Dioxolane production via reactive distillation combined with vapor permeation: Experiments and modelling	216
Fabrication and separation performances of composite membranes containing copper ferrite photocatalysts on graphene oxide nanosheets	193
Editorial Board	190
A kinetic approach to the mechanisms of sedimentation and coalescence of a loose-packed emulsion	189
Temperature-responsive polymeric surfactant-based emulsion for dual oil-solid and oil-water separation from oily sludges	178
Green biopolymer stabilizer induced robust removal of vanadium (V) by sulfidated microscale zerovalent iron	177
A structurally tunable interface control reagent for efficient Solid-Liquid separation in coal flotation tailings	169
Revealing Cu2+-localized topological structures in zeolite for effective purification of ultra-low-concentration methyl mercaptan	169
Reactive membranes for groundwater remediation of chlorinated aliphatic hydrocarbons: Competitive dechlorination and cost aspects	166
Sustainable coproduction of xylooligosaccharide, single-cell protein and lignin-adsorbent through whole components’ utilization of sugarcane bagasse with high solid loading	166
Optimised “green solvent” extraction of long-chain menaquinones (Vitamin K2) from wet Lactococcus lactis biomass	164
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	164
Testing carbon structures for metal-free catalytic/photocatalytic ozonation to remove disinfection by-product formation potential	162
Novel application of (NH4)2Mo3S13 for vanadium adsorption: Experiments, characterization, kinetic and equilibrium modeling	161

Standing wave design and optimization of a tandem size-exclusion simulated moving bed process for high-throughput recovery of neoagarohexaose from neoagarooligosaccharides	158
Theoretical investigation on two-dimensional conjugated aromatic polymer membranes for high-efficiency hydrogen separation: The effects of pore size and interaction	158
Mechanism of alkaline roasting enhanced Na2SO3 comprehensive recovery of valuable elements from zinc leaching residue	156
Polyamide membranes with internal nanoscale homogeneity for enhanced ion separation via a constant temperature UV irradiation post-treatment	156
Impacts of water hardness on coagulation-UF-NF process using aluminum salts	154
Comparing methods for protozoa removal in activated sludge	152
Ammonium removal and recovery from effluent of AnMBR treating real domestic wastewater using polymeric hydrogel	152
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	151
Theoretical and experimental investigations of time-dependent mass transfer mechanism of fine particulate matter under the sink effect	150
Imaging of particle deposition and resulting flow field during flocculation filtration within a granulated activated carbon filter	145
Synergistically boosted non-radical catalytic oxidation by encapsulating Fe3O4 nanocluster into hollow multi-porous carbon octahedra with emphasise on interfacial engineering	145
Editorial Board	144
The efficient degradation of carbamazepine by Cu-Fe bimetallic composite carbon derived from the waste cation exchange resins: Mechanism, ecotoxicity, and continuous flow catalysis	142
Environmental remediation of novel Entities: Deep eutectic solvents as advanced water treatment technologies	139
Deep separation of critical metals of Mo and Re from waste solution by stepwise precipitation flotation: Selective chelation underlying separation mechanism	139
Aerobic and anaerobic regulation induced different degradation behaviors of parachloronitrobenzene in soil by microwave activated persulfate oxidation	139
Efficiently removal the lanthanides using electroreduction diffusion method/high-temperature adsorption technique	138
Green preparation of water-stable coptidis-dyeing composite nanofiber filters with ultraviolet shielding and antibacterial activity and biodegradability	137
Open-air plasma deposition of polymer-supported silica-based membranes for gas separation	136
Liquid-liquid extraction performance in a miniaturized magnetic extractor	134
Efficient CO2 capture and in-situ electrocatalytic conversion on MgO surface by metal single-atom engineering: A comprehensive DFT study	134
Multilevel screening and mechanism analysis of ionic liquids for separating pyridine from coal pyrolysis model oil	133
Winery waste valorisation as microalgae culture medium: A step forward for food circular economy	132
Triblock copolymers as versatile constituents of double stimuli-responsive ionic-liquid-based aqueous biphasic systems	131
AlCl3-assisted dissolution of NdCl3 in organic solvents for Nd refining	128
Editorial Board	127
Effect of sulfur-containing organic molecules on the structural stability of Ni–Y zeolite adsorbent	126
Composite alginate membranes with dispersed MQFP hard magnet network as a new concept for highly efficient pervaporative dehydration of ethanol/water mixture	126
Constructing durable BiFeO3@SrBi2B2O7 p-n heterojunction for persulfate enhanced piezo-photocatalytic water purification	125
High performance-green extraction of base metals (Zn and Pb) and gold from polymetallic sulfide concentrate using p-toluenesulfonic acid-based deep eutectic solvents	125
Flexible solar absorber using hydrophile/hydrophobe amphipathic Janus nanofiber as building unit for efficient vapor generation	125
Structured PAN@MgAl-NO3 for highly efficient removal of CrO42−, SeO32−, MnO4−, and AsO2−	124
Fabrication of robust zirconium metal-organic frameworks for efficient C3H6/C2H4 separation	123
Ion exchange resin – Bipolar membrane electrodialysis hybrid process for reverse osmosis permeate Remineralization: Preparative ion exchange chromatography for Ca2+ and Mg2+ recovery	120
Enhanced electrochemical harmless removal of ammonia nitrogen and simultaneously recovery of phosphorus with peroxydisulfate activated by Fe inductive electrode	119
Construction of superhydrophobic PDMS@PS-SiO2 films with self-cleaning properties via a simple template approach for efficient water harvesting	119
Performance Investigation of a novel direct contact membrane distillation unit with air bubble injection	119
Efficient lithium recovery from spent LiFePO4 cathodes via alkaline pressure leaching	118
Is catalytic ozonation always an efficient treatment for refractory pollutant in various water matrices?	118
Fabrication of thermally stable polyamide nanofiltration membranes via interfacial polymerization modulated with acid acceptors	117
Adsorption-induced chemical reaction for in situ immobilization of radioactive anions on pristine β-Bi2O3 microflowers	117
Influence of conic shape on bypass and cut-size in hydrocyclones	117
A robust floating oxygen-doped graphitic carbon nitride sheet for efficient photocatalytic CO2 conversion	116
Nanoengineering electrode for yttria-stabilized zirconia-based symmetrical solid oxide fuel cells to achieve superior output performance	116
Application of the quorum sensing inhibitor to improve ARGs removal by membrane-based household drinking water treatment process	115
Energy level mediation of Bi2O2CO3 cooperates with the noble metal-like catalysis of Bi for enhancing the photodegradation activity of organic pollutants	114
A redox-mediated polymer with extended π-delocalization for efficient Cr3+ elimination via capacitive deionization	114
As2O3 adsorption enhancement over Ni-modified γ-Al2O3 in complex flue gas constituents	113
Co nanoparticles encapsulated in nitrogen-doped nanocarbon derived from cobalt-modified covalent organic framework as peroxymonosulfate activator for sulfamerazine degradation	113
Oxidation dissolution mechanism of copper matte anode	113

Novel approach to grow nanosized BiFeO3, CoFe2O4 and NiFe2O4 on Amberlyst-15 for efficient sorption of Cd2+ ions	113
Enhanced CO2 capture capacity and mechanical stability of calcium-based pellets by dry ball milling of lime to extrusion molding	112
A novel synthesis route of peach blossom-like Dawsonite adsorbent for ultra-efficient removal of Congo red and Cu2+: Adsorption behavior and mechanism study	112
Influence of competitive adsorption on cycle performance of temperature swing adsorption: A case analysis of SF6/N2 mixture separation	111
Model prediction and experimental study on the NH3 recovery from ammonia-nitrogen wastewater by air gap diffusion distillation	110
Enhancing ferrate(VI) oxidation by ferrous iron for pretreating shale gas produced water and mitigating ultrafiltration membrane fouling	110
Integrating multifactor for methane purification and storage in topological isomorphic tetranuclear cluster-based iron-organic frameworks	109
Significantly enhanced photocatalytic activity by surface acid corrosion treatment and Au nanoparticles decoration on the surface of SnFe2O4 nano-octahedron	109
Magnetic Fe3O4@C nanoparticles separated from cold rolling mill sludge for 4-nitrophenol reduction	108
Controllable fabrication of high-performance porous cage-like CaO microspheres by dual-fluid spray combustion synthesis for thermochemical energy storage	108
Mechanisms of antibiotic combined pollutants removal using a pulp reject-based flocculant: An insight from antibiotic structure	108
Construction of sulfur-doped MOF-derived carbon materials with bimetallic-sulfur-carbon triphasic synergy for the catalytic ozonation of atrazine	108
Carbon-mediated iron valence state transformation for deep aluminum removal toward battery-grade FePO4 recycling	108
Thermal-responsive PNIPAM/UiO-66 aerogels for controllable water capture and release	107
Conductive carbon/Al2O3 mixed-matrix membrane cathode for efficient electrocatalytic production of H2O2	107
Functionalized areca husk fibers enhanced photothermal and anti-fouling hydrogel composite for efficient uranium extraction from seawater	106
Enhancement of Co(II) removal via coupling of electrosorption and electrodeposition using asymmetric electrode from wastewater	106
Fabrication of EDTA modified silica gel toward highly efficient adsorptive removal of copper ions from methanol	106
Baculovirus purification with functionalized non-woven fibers: Impact of residence time, binding strength, and ligand chemistry	105
One step synthesis of flexible covalent organic Frameworks in water for efficient separation of CO2/CH4	105
Hybrid composite membrane with highly interconnected microchannels for robust methane separation from wastewater	105
Regulating the in-plane and edge of MoSe2 nanosheets with phase engineering for efficient and selective Pb(II) removal	105
Enhanced singlet oxygen-dominated heterogeneous catalytic oxidation via K-N/C sites for sustainable wastewater treatment	104
Study on the enhancement of CO2 capture performance of calcium-based materials by ultrasonic-assisted mixing with acetic acid leaching	104
Tailored pH-triggered surfactant for stepwise separation of a three-component mineral system	103
A monolithic azacalix[4]pyridine column for high-resolution and high-efficiency pressurized capillary electrochromatographic separation	103
Editorial Board	102
Donnan dialytic transport and biological removal of yttrium from multi-element solutions	102
Electrocatalytic reductive removal of arsenite from nonferrous smelting waste acid on copper electrode	102
Synergistically optimized boron-doped nanocrystalline diamond anodes for enhanced durability in electrochemical wastewater oxidation	102