Engineered biochar for environmental decontamination in aquatic and soil systems: a review

Carbon Research, Год журнала: 2022, Номер 1(1)

Опубликована: Июнь 18, 2022

Abstract Contamination of aquatic and soil systems by organic inorganic pollutants has become a serious issue concern worldwide. Viable cost-effective solutions are urgently needed to mitigate the negative impacts diverse on environment human health. Biochar emerged as an effective green material for remediation wide spectrum (in)organic pollutants. However, applications pristine biochar in decontamination have encountered bottlenecks due its limited properties which cannot meet desired requirements. Therefore, multiple modification methods been developed tailoring physicochemical enhance effectiveness environmental decontamination. This work provides holistic review recent advances synthesis engineered using physical, chemical, biological methods. Further related mechanisms field also summarized discussed. In addition, existing challenges research gaps outlined, future needs proposed. summarizes scientific opportunities comprehensive understanding biochars materials contaminated water soil. Graphical abstract

Язык: Английский

---

Nitrogen-doped biochar (N-doped BC) and iron/nitrogen co-doped biochar (Fe/N co-doped BC) for removal of refractory organic pollutants

Journal of Hazardous Materials, Год журнала: 2023, Номер 446, С. 130727 - 130727

Опубликована: Янв. 4, 2023

Язык: Английский

---

Preparation of highly porous nitrogen-doped biochar derived from birch tree wastes with superior dye removal performance

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2023, Номер 669, С. 131493 - 131493

Опубликована: Апрель 20, 2023

Heteroatom doping is a highly effective strategy that can be used to modify carbonaceous adsorbents improve their chemical reactivity and increase adsorptive properties. Herein, simple method reported for the preparation of nitrogen-doped biochar using natural abundant biowaste from birch trees melamine as nitrogen dopant adsorption Acid red 18 (AR-18) dye water. The doped biochars were also characterized performance during treatment synthetic effluents. physicochemical characterization results showed N-doping process provoked remarkable chances on morphology, pore structure, surface functionalities. N-doped functional groups with 5.4 % N in its structure while non-doped carbon traces 0.47 %. Moreover, specific area was dominated by mesopores (86.4 %) micropores (67.8 %). Raman analysis incorporation created more defects structure. experiments boosted performance. maximum capacity 545.2 mg g−1, exhibited 444.5 i.e., an 22.6 kinetic equilibrium studies Avrami fractional order Liu models most suitable describing experimental AR-18 data. parameters found obey nonlinear relationship temperature. Since are porous, filling main mechanism, however; removal suggests interactions such electrostatic, hydrogen bonds, Lewis acid-base, π-π between adsorbent involved. thermodynamic solution dependent temperature, exothermic, spontaneous. excellent performances contaminants effluents confirming high efficiency color removal. This research shows efficient design effective, low-cost, sustainable remediate contamination wastewater.

Язык: Английский

---

Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Янв. 2, 2024

The pollution of soil and aquatic systems by inorganic organic chemicals has become a global concern. Economical, eco-friendly, sustainable solutions are direly required to alleviate the deleterious effects these ensure human well-being environmental sustainability. In recent decades, biochar emerged as an efficient material encompassing huge potential decontaminate wide range pollutants from systems. However, application raw biochars for pollutant remediation is confronting major challenge not getting desired decontamination results due its specific properties. Thus, multiple functionalizing/modification techniques have been introduced alter physicochemical molecular attributes increase their efficacy in remediation. This review provides comprehensive overview latest advancements developing functionalized/modified via biological other physiochemical techniques. Related mechanisms further applications modified water discussed summarized. Furthermore, existing research gaps challenges discussed, well study needs suggested. work epitomizes scientific prospects complete understanding employing candidate polluted regenerative development.

Язык: Английский

---

Co-pyrolysis technology for enhancing the functionality of sewage sludge biochar and immobilizing heavy metals

Chemosphere, Год журнала: 2023, Номер 317, С. 137929 - 137929

Опубликована: Янв. 19, 2023

Язык: Английский

---

Harnessing the power of functionalized biochar: progress, challenges, and future perspectives in energy, water treatment, and environmental sustainability

Biochar, Год журнала: 2024, Номер 6(1)

Опубликована: Март 14, 2024

Abstract The swift advancement of sustainable energy technologies, coupled with the urgent need to address environmental challenges, has generated considerable interest in multifaceted applications biochar materials promote energy, water, and sustainability. This comprehensive review examines recent advancements production functionalized materials, emphasizing their pivotal roles conversion storage, wastewater treatment, CO 2 reduction, soil amelioration, promotion carbon neutrality within a circular economy framework. functionalization involves surface chemistry porosity modifications, achieved through techniques like templating, chemical activation, metal impregnation, or heteroatom doping. These modifications substantially enhance catalytic activity, storage capacity, cycling stability making them particularly effective diverse such as water splitting, fuel cells, supercapacitors. Additionally, demonstrate remarkable efficacy catalysts adsorbents proficiently removing pollutants heavy metals, organic contaminants, nutrients, thereby facilitating resource recovery from wastewater. also underscores potential capture conversion, exploring innovative strategies augment adsorption capacity state-of-the-art processes for transforming captured into valuable fuels chemicals. In summary, this offers insights research, underscoring its substantial commercial versatile material contributing cleaner more future. Article Highlights current status research is comprehensively reviewed. fields critically examined. Technology readiness levels (TRLs) various biochar-based technologies are evaluated. Graphical

Язык: Английский

---

Nitrogen-doped porous carbon through K2CO3-activated bamboo shoot shell for an efficient CO2 adsorption

Fuel, Год журнала: 2024, Номер 363, С. 130937 - 130937

Опубликована: Янв. 13, 2024

Язык: Английский

---

Synthesis Methods, Properties, and Modifications of Biochar-Based Materials for Wastewater Treatment: A Review

Resources, Год журнала: 2024, Номер 13(1), С. 8 - 8

Опубликована: Янв. 5, 2024

The global impact of water and soil contamination has become a serious issue that affects the world all living beings. In this sense, multiple treatment alternatives have been developed at different scales to improve quality. Among them, biochar suitable alternative for environmental remediation due its high efficiency low cost, raw material used production comes from residual biomass. A is carbonaceous with interesting physicochemical properties (e.g., surface area, porosity, functional groups), which can be prepared by synthesis methods using agricultural wastes (branches banana rachis, cocoa shells, cane bagasse, among others) as feedstock. This state-of-the-art review based on general description remediation. Biochar’s production, synthesis, uses also analyzed. addition, work shows some thus several applications, like removing heavy metals, oil, dyes, other toxic pollutants. Physical chemical modifications, precursors, dopants, promoting agents Fe N species) discussed. Finally, primary corresponding mechanism quality (via adsorption, heterogeneous photocatalysis, advanced oxidation processes) described, both laboratory medium large scales. Considering advantages, methods, promising potential mitigate problems improving quality, reducing greenhouse gas emissions, circular economy through biomass, generating value-added products uses.

Язык: Английский

---

Utilization of biochar for remediation of heavy metals in aqueous environments: A review and bibliometric analysis

Heliyon, Год журнала: 2024, Номер 10(4), С. e25785 - e25785

Опубликована: Фев. 1, 2024

Biochar usage for removing heavy metals from aqueous environments has emerged as a promising research area with significant environmental and economic benefits. Using the PICO approach, question aimed to explore using biochar remove media. We merged data Scopus Web of Science Core Collection databases acquire comprehensive perspective subject. The PRISMA guidelines were applied establish search parameters, identify appropriate articles, collect bibliographic information publications between 2010 2022. bibliometric analysis showed that biochar-based metal remediation is field increasing scholarly attention. removal Cr(VI), Pb(II), Cd(II), Cu(II) was most studied among metals. identified five main clusters centered on adsorption, water treatment, adsorption models, analytical techniques, hydrothermal carbonization by performing keyword co-occurrence analysis. Trending topics include reusability, modification, acid mine drainage (AMD), wastewater hydrochar. reutilization metal-loaded spent includes transforming it into electrodes supercapacitors or stable catalyst materials. This study provides overview in aquatic highlights knowledge gaps future directions.

Язык: Английский

---

Nanoporous Carbon Materials Derived from Biomass Precursors: Sustainable Materials for Energy Conversion and Storage

Electrochemical Energy Reviews, Год журнала: 2024, Номер 7(1)

Опубликована: Июль 14, 2024

Язык: Английский

---