OOIR: Observatory of International Research

Papers

(The H4-Index of Sustainable Environment Research is 18. 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 2021-02-01 to 2025-02-01.)

Article	Citations
Machine-learning-estimation of high-spatiotemporal-resolution chlorophyll-a concentration using multi-satellite imagery	124
A review on the thermochemical reaction mechanisms for distiller pyrolysis process	51
A novel multicriteria assessment framework for evaluating the performance of the EU in dealing with challenges of the low-carbon energy transition: an integrated Fermatean fuzzy approach	49
Structure and photocatalytic activity of maleic anhydride-functionalized TiO2 nanoparticles by a simple method	48
Chitosan impregnation of coconut husk biochar pellets improves their nutrient removal from eutrophic surface water	39
Optimization of metal dopant effect on ZnO nanoparticles for enhanced visible LED photocatalytic degradation of citalopram: comparative study and application to pharmaceutical cleaning validation	34
Enhanced photocatalytic performance of Nb doped TiO2/reduced graphene oxide nanocomposites over rhodamine B dye under visible light illumination	33
Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S	33
Chemotherapeutic drugs in Lebanese surface waters: estimation of population exposure and identification of high-risk drugs	31
Comprehensive nontargeted analysis of fluorosurfactant byproducts and reaction products in wastewater from semiconductor manufacturing	29
Optimization and kinetics studies of biodiesel synthesis from Jatropha curcas oil under the application of eco-friendly microwave heating technique: an environmentally benign and sustainable bio-waste	24
Synergistic degradation of Methylene Blue by novel Fe-Co bimetallic catalyst supported on waste silica in photo-Fenton-like system	23
Efficient chemical stabilization of tannery wastewater pollutants in a single step process: Geopolymerization	22
Efficient isolation of keratin from protein-rich waste biomass: a practical approach to minimize environmental impact and valorize waste biomass	20
Photocatalytic degradation of azithromycin formulation in aqueous solution by doped titanium dioxide/fiberglass-rubberized silicone photocatalytic membrane	20
Co-cultivation, metal stress and molasses: strategies to improving exopolymeric yield and metal removal efficacy	19
The effect of pyrolysis temperature and feedstock on date palm waste derived biochar to remove single and multi-metals in aqueous solutions	18
Nb2O5 monolith as an efficient and reusable catalyst for textile wastewater treatment	18