OOIR: Observatory of International Research

Papers

(The H4-Index of Biochar is 35. 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 2021-11-01 to 2025-11-01.)

Article	Citations
Characterization of biochars from woody agricultural wastes and sorption behavior comparison of cadmium and atrazine	488
Predicting the effect of dissolved humic acid on sorption of benzotriazole to biochar	371
Silicate minerals control the potential uses of phosphorus-laden mineral-engineered biochar as phosphorus fertilizers	227
Seven years of biochar amendment has a negligible effect on soil available P and a progressive effect on organic C in paddy soils	216
Wood waste biochar promoted anaerobic digestion of food waste: focusing on the characteristics of biochar and microbial community analysis	196
Nitrogen-doped biochars as adsorbents for mitigation of heavy metals and organics from water: a review	173
Biochar granulation reduces substrate erosion on green roofs	113
Sorption kinetics of 1,3,5-trinitrobenzene to biochars produced at various temperatures	110
Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural	109
Development of a new hydrophobic magnetic biochar for removing oil spills on the water surface	107
Simultaneous dissipation of trichloroethene and arsenic from co-contaminated groundwater by coupling biodechlorination and biodetoxification with assistance of biochar	106
The stability of carbon from a maize-derived hydrochar as a function of fractionation and hydrothermal carbonization temperature in a Podzol	94
Insights on mechanisms of aluminum phytotoxicity mitigation by canola straw biochars from different regions	91
A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment	79
Formable porous biochar loaded with La-Fe(hydr)oxides/montmorillonite for efficient removal of phosphorus in wastewater: process and mechanisms	78
A nanoscale observation to explain the discrepancy of electron exchange capacities between biochar containing comparable surface redox-active moieties	67
Carbon-negative cement-bonded biochar particleboards	66
Pyrolytic synthesis of graphene-encapsulated zero-valent iron nanoparticles supported on biochar for heavy metal removal	66
Effects of low molecular weight organic acids on aggregation behavior of biochar colloids at acid and neutral conditions	61
Photoactivation of peroxymonosulfate by wood pulp cellulose biochar/g-C3N4 composite for diclofenac degradation: the radical and nonradical pathways	60
p-Arsanilic acid decontamination over a wide pH range using biochar-supported manganese ferrite material as an effective persulfate catalyst: Performances and mechanisms	53
Biochar-induced changes in the soil diazotroph community abundance and structure in a peanut field trial	52
Machine learning predicting and engineering the yield, N content, and specific surface area of biochar derived from pyrolysis of biomass	49
Bamboo biochar greater enhanced Cd/Zn accumulation in Salix psammophila under non-flooded soil compared with flooded	49
Arsenic removal from water and soils using pristine and modified biochars	44

Removal of toxic elements from aqueous environments using nano zero-valent iron- and iron oxide-modified biochar: a review	44
Biochar and organic substitution improved net ecosystem economic benefit in intensive vegetable production	42
Biochar applications influence soil physical and chemical properties, microbial diversity, and crop productivity: a meta-analysis	42
Use of sewage sludge biochar as a catalyst in production of biodiesel through thermally induced transesterification	41
Biochar–microbe interaction: more protist research is needed	41
Biochar mitigates the biotoxicity of heavy metals in livestock manure during composting	38
Anisotropic hemp-stem-derived biochar supported phase change materials with efficient solar-thermal energy conversion and storage	37
Removal performance, mechanisms, and influencing factors of biochar for air pollutants: a critical review	37
Application of biochar-based photocatalysts for adsorption-(photo)degradation/reduction of environmental contaminants: mechanism, challenges and perspective	36
Biochar amendment alters the partitioning of nitrate reduction by significantly enhancing DNRA in a paddy field	36
Design of a renewable hydroxyapatite-biocarbon composite for the removal of uranium(VI) with high-efficiency adsorption performance	35
Stability and interaction of biochar and iron mineral nanoparticles: effect of pH, ionic strength, and dissolved organic matter	35