OOIR: Observatory of International Research

Papers

(The H4-Index of Biochar is 37. 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
Silicate minerals control the potential uses of phosphorus-laden mineral-engineered biochar as phosphorus fertilizers	525
Seven years of biochar amendment has a negligible effect on soil available P and a progressive effect on organic C in paddy soils	395
Characterization of biochars from woody agricultural wastes and sorption behavior comparison of cadmium and atrazine	235
Predicting the effect of dissolved humic acid on sorption of benzotriazole to biochar	226
Wood waste biochar promoted anaerobic digestion of food waste: focusing on the characteristics of biochar and microbial community analysis	218
Nitrogen-doped biochars as adsorbents for mitigation of heavy metals and organics from water: a review	187
Biochar granulation reduces substrate erosion on green roofs	121
Sorption kinetics of 1,3,5-trinitrobenzene to biochars produced at various temperatures	117
Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural	116
Development of a new hydrophobic magnetic biochar for removing oil spills on the water surface	111
Simultaneous dissipation of trichloroethene and arsenic from co-contaminated groundwater by coupling biodechlorination and biodetoxification with assistance of biochar	108
The stability of carbon from a maize-derived hydrochar as a function of fractionation and hydrothermal carbonization temperature in a Podzol	102
Insights on mechanisms of aluminum phytotoxicity mitigation by canola straw biochars from different regions	99
A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment	90
Formable porous biochar loaded with La-Fe(hydr)oxides/montmorillonite for efficient removal of phosphorus in wastewater: process and mechanisms	82
A nanoscale observation to explain the discrepancy of electron exchange capacities between biochar containing comparable surface redox-active moieties	70
Pyrolytic synthesis of graphene-encapsulated zero-valent iron nanoparticles supported on biochar for heavy metal removal	68
Carbon-negative cement-bonded biochar particleboards	67
Photoactivation of peroxymonosulfate by wood pulp cellulose biochar/g-C3N4 composite for diclofenac degradation: the radical and nonradical pathways	65
Effects of low molecular weight organic acids on aggregation behavior of biochar colloids at acid and neutral conditions	63
p-Arsanilic acid decontamination over a wide pH range using biochar-supported manganese ferrite material as an effective persulfate catalyst: Performances and mechanisms	59
Biochar-induced changes in the soil diazotroph community abundance and structure in a peanut field trial	58
Arsenic removal from water and soils using pristine and modified biochars	54
Bamboo biochar greater enhanced Cd/Zn accumulation in Salix psammophila under non-flooded soil compared with flooded	53
Machine learning predicting and engineering the yield, N content, and specific surface area of biochar derived from pyrolysis of biomass	46

Removal of toxic elements from aqueous environments using nano zero-valent iron- and iron oxide-modified biochar: a review	46
Biochar applications influence soil physical and chemical properties, microbial diversity, and crop productivity: a meta-analysis	45
Biochar and organic substitution improved net ecosystem economic benefit in intensive vegetable production	42
Use of sewage sludge biochar as a catalyst in production of biodiesel through thermally induced transesterification	42
Biochar–microbe interaction: more protist research is needed	42
Biochar mitigates the biotoxicity of heavy metals in livestock manure during composting	41
Removal performance, mechanisms, and influencing factors of biochar for air pollutants: a critical review	41
Anisotropic hemp-stem-derived biochar supported phase change materials with efficient solar-thermal energy conversion and storage	40
Application of biochar-based photocatalysts for adsorption-(photo)degradation/reduction of environmental contaminants: mechanism, challenges and perspective	39
Biochar amendment alters the partitioning of nitrate reduction by significantly enhancing DNRA in a paddy field	38
Stability and interaction of biochar and iron mineral nanoparticles: effect of pH, ionic strength, and dissolved organic matter	37
Design of a renewable hydroxyapatite-biocarbon composite for the removal of uranium(VI) with high-efficiency adsorption performance	37