OOIR: Observatory of International Research

Papers

(The H4-Index of Separation and Purification Technology is 99. 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 2022-05-01 to 2026-05-01.)

Article	Citations
CO2-enhanced recovery of fulvic acid via activated carbon adsorption: a novel approach to sustainable wastewater treatment	541
Advancing CO2 absorption and desorption by mass transfer promoters: Density difference adjustment based on spontaneous interfacial turbulence	312
Editorial Board	282
Polyaniline-based magnetically-driven microbots for improving enantioselective separation toward amino acids	269
1,3-Dioxolane production via reactive distillation combined with vapor permeation: Experiments and modelling	268
Editorial Board	238
Comparing methods for protozoa removal in activated sludge	218
Imaging of particle deposition and resulting flow field during flocculation filtration within a granulated activated carbon filter	211
Editorial Board	198
The efficient degradation of carbamazepine by Cu-Fe bimetallic composite carbon derived from the waste cation exchange resins: Mechanism, ecotoxicity, and continuous flow catalysis	196
Aerobic and anaerobic regulation induced different degradation behaviors of parachloronitrobenzene in soil by microwave activated persulfate oxidation	192
Composite alginate membranes with dispersed MQFP hard magnet network as a new concept for highly efficient pervaporative dehydration of ethanol/water mixture	187
Editorial Board	187
Supramolecular-solvent based extraction of hydroxytyrosol from brines of the processing of table olives	186
Synthesis of tobermorite using coal fly ash and its utilization in highly efficient CO2 adsorption	179
Nanoengineering of ultrathin N-CQDs/Bi2WO6 S-scheme heterojunction for enhanced photodegradation of antibiotics as emerging contaminants: Mechanism insight and toxicity assessment	174
Ferroelectric ultrafiltration membrane with improved antifouling performance	174
S-scheme Bi/Bi2WO6/TiO2 nanofiber photocatalyst for efficient degradation of sulfamethoxazole	172
Kinetic process assessment of H2 purification over highly porous carbon sorbents under multicomponent feed conditions	169
Lithium recovery from battery waste leachate by nanofiltration: Impact of types of leaching acid and alkaline on permeability of lithium ions	166
Immobilization of uranyl ions in water by covalent organic frameworks: In-situ utilization of the photocatalytic produced H2O2	165
A comprehensive review of graphene oxide-based membranes for efficient dye removal from water sources	161
Microalgal EPS as a bio-flocculant for sustainable biomass harvesting: a review	159
Dual thiols-decorated metal–organic framework for efficient separation and recovery of gold	157
Degradation of diclofenac sodium with low concentration from aqueous milieu through polydopamine-chitosan modified magnetic adsorbent-assisted photo-Fenton process	157

Tannic acid −3-aminopropyltriethoxysilane (TA-APTES) coated UHMWPE membrane for DCMD	157
Super hydrophilic biochar-based hydrogel with tunable aqueous state for efficient solar-powered desalination	156
Efficient deterpenation of lemon essential oil enhanced by a levulinic acid-based natural eutectic solvent	155
Advances in single-atom catalysts/sorbents for elemental mercury removal from flue gas	151
Formation of hydrophobic membranes by surface spray assisted NIPS: Effects of solvent/non-solvent and spraying conditions	148
Piezocatalytic and photo/piezocatalytic enhancement of PDS-based AOP by MXene modified BiFeO3 for efficient degradation of antibiotics	147
Amorphous Fe–Mn binary oxides nanoparticles decorating waste bamboo biomass-based monolith for efficient arsenic removal with column adsorption	143
Enhanced lithium separation with Li1.3Al0.3Ti1.7(PO4)3 lithium superionic conductor and aided charge balance	142
Hybrid of pyrazine based π-conjugated organic molecule and MXene for hybrid capacitive deionization	141
Single Nickel sites - easy separation and high-performance catalyst for the production of β-Nitro alcohols	140
Efficient simultaneous removal of nickel, phosphorus and COD from electroless nickel plating wastewater by three dimensional electrodialytic system	138
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	137
Hole transfer promotion on La-MOF@MXene by valence band structure regulation for the efficient photocatalytic degradation	137
In-situ activated carbon adsorbents with tailored pore structures for efficient SF6 capture and high-purity recovery	136
Development of Monoethanolamine Chloride-Ethylene Diamine Deep Eutectic Solvent for Ffficient Carbon Dioxide Capture	136
Nanoengineering electrode for yttria-stabilized zirconia-based symmetrical solid oxide fuel cells to achieve superior output performance	135
Enhanced directional charge transfer by 2D MXene/Bi2WO6/GO in visible light photocatalysis coupled persulfate approach for organic pollutants degradation	133
Metal-organic framework decorated polyimide nanofiber aerogels for efficient high-temperature particulate matter removal	133
Chemical synthesized pyrite activated peroxymonosulfate for the treatment of wastewater facing the risk of antibiotic resistance transmission: Contaminants elimination and disinfection	131
Bacterial cellulose modified with thiomolybdate sulfides: An outstanding eco-friendly adsorbent for the removal of multiple heavy metals from aqueous medium	130
Single-atom Fe in N-doped hierarchical carbonaceous structure derived from MOF: A pathway to high-performance CDI and MCDI	130
Cross-linked copolyimide-P84/CAU-10-H/branched polyethyleneimine membranes for organic solvent nanofiltration	124
Recyclable and selective PVDF-based multifunctional molecular imprinted membranes for the removal of Bisphenol A	124
Lattice distortion effects in high-entropy oxides: Boosting PMS activation for effective and durable pollutant degradation	124
Polyamide membranes with internal nanoscale homogeneity for enhanced ion separation via a constant temperature UV irradiation post-treatment	120
Liquid-liquid extraction performance in a miniaturized magnetic extractor	119
Highly efficient anodic oxidation of organic pollutants using Ti4O7 particle anode: Experimental and theoretical study of the operational and structural parameters influence	118
Fabrication and TA@MOF-808 modification of new thin-film composite membranes for effective retrieval of ionic rare earths	118
Nanoporous anodic aluminum oxide-confined ZIF-67 for efficiently activating peroxymonosulfate to degrade organic pollutants	116
Tailoring three-dimensional conjugated microporous polymers for photo-enhanced gold extraction	115
Nitrogen vacancy-modified g-C3N4 nanosheets controlled by deep eutectic solvents for highly efficient photocatalytic atrazine degradation: Non-radical dominated holes oxidation	115
Enhanced CO2 capture capacity and mechanical stability of calcium-based pellets by dry ball milling of lime to extrusion molding	113
Polyphenol-modified zero-valent iron prepared using ball milling technology for hexavalent chromium removal: Kinetics and mechanisms	113
Study on biogas upgrading characteristics and reaction mechanism of low energy consumption 2-Amino-2-methylpropanol (AMP)/piperazine (PZ)/H2O mixed amines	113
Needle-like PVP@Ce/Zr-MOFs for the highly efficient selective of fluoride and phosphate from aqueous solution	113
Constructing durable BiFeO3@SrBi2B2O7 p-n heterojunction for persulfate enhanced piezo-photocatalytic water purification	112
Antibiotic Chloramphenicol degradation using submerged thermal plasma synergized with LaMnO3 catalyst	112
Effective recovery of rare earth and fluorine from REF3 smelting slag by a mechanochemical process	111
Environmental remediation of novel Entities: Deep eutectic solvents as advanced water treatment technologies	111
A highly effective and low-cost sepiolite-based solid amine adsorbent for CO2 capture in post-combustion	111
Synchronous construction of high sulfonic acid grafting degree and large surface area in conjugated microporous polymer adsorbents for efficient removal of uranium (VI)	111
Green preparation of water-stable coptidis-dyeing composite nanofiber filters with ultraviolet shielding and antibacterial activity and biodegradability	110
Process design of molten salt distillation separation of ZrCl4 and HfCl4 for nuclear purposes	109
Self-assembly hierarchical MXene/bacterial cellulose composite films with accelerated surface charge transfer for highly efficient solar-driven water evaporation	109
Efficient CO2 capture and in-situ electrocatalytic conversion on MgO surface by metal single-atom engineering: A comprehensive DFT study	109
Uncovering hydrogen-to-carbon ratio for integrated CO2 capture and reverse water-gas shift reaction through MFB-TGA-MS analysis	108
Targeted enhancement of ultra-micropore in highly oxygen-doped carbon derived from biomass for efficient CO2 capture: Insights from experimental and molecular simulation studies	108
Metal-organic framework (MOF) membranes for Mg2+/Li+ separation	108
Assessment of the suitability of adsorption water treatment as a concentration process for resource recovery and wastewater treatment	107
Adsorptive removal of heavy metals from wastewater using emerging nanostructured materials: A state-of-the-art review	107

Unravelling fouling characteristics in a point-of-use water purifier: Bridging compositional evolution to spatial distribution	107
A mild closed-loop process for lithium–iron separation and cathode materials regeneration from spent LiFePO4 batteries	107
Recycling lead from waste lead-acid batteries by the combination of low temperature alkaline and bath smelting	106
A novel SRP/CdS heterostructure hollow nanospheres for outstanding photocatalytic performance	106
Insight into the deactivation mechanism of CaO-based CO2 sorbent under in-situ coal combustion	105
Constructing Co3O4 nanosheet arrays anode as durable and efficient electrocatalyst for simultaneous chlorine evolution and carbamazepine degradation in the marine environment	105
Impact of membrane characteristics and chemical ageing on algal protein fouling behaviour of ultrafiltration membranes	105
Computational modeling of discrete-object feed spacers attached directly onto reverse osmosis membranes for enhanced module packing capacity and improved hydrodynamics	104
Fe-decorated Bi2WO6/TiO2-N heterostructure photocatalyst for enhanced visible light-driven degradation of organic micropollutants in air	103
Magnetic Fe3O4@C nanoparticles separated from cold rolling mill sludge for 4-nitrophenol reduction	103
Enhancing stability and ionic sieving efficiencies of GO membranes via copper ion crosslinking and tannic acid intercalation	103
Thermally stable thin-film nanocomposite nanofiltration membranes confined by MoS2 nanosheets for high temperature separation	103
Membrane bioreactor technology for greywater treatment: A review	102
Dibenzo-15-crown-5-based Tröger's Base membrane for 6Li+/7Li+ separation	102
Cu-Fe oxide supported on Na2CO3-modified activated carbon boost H2S removal at low temperature	102
Removal of lead by membrane photo-electrolysis	102
Simultaneous removal and recovery of ammonium and phosphate ions using flow electrode capacitive deionization through the struvite generation mechanism	101
Preparation of composite nanofiltration membrane with interlayer for pharmaceutical rejection	101
Eco-friendly strategy for advanced recycling waste copper from spent lithium-ion batteries: Preparation of micro-nano copper powder	100
Cu/Ni recovery by phosphate crystallization using fluidized-bed homogeneous crystallization from electroplating wastewater	100
Fabrication of robust zirconium metal-organic frameworks for efficient C3H6/C2H4 separation	100
Acid-reinforced ionic cross-linking of sodium alginate/polyamidoamine dendrimer blended composite membranes for isopropanol dehydration through pervaporation	100
Study on the process of producing crotonaldehyde from acetaldehyde catalyzed by Zr-β zeolite	100
Three-dimensional-printed calcium alginate/graphene oxide porous adsorbent with super-high lead ion adsorption ability in aqueous solution	100
Metal–organic frameworks for aromatic-based VOC capture	99
Performance Investigation of a novel direct contact membrane distillation unit with air bubble injection	99