نوع مقاله : مقاله مروری
نویسندگان
1 گروه مهندسی آب، دانشکده کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، تهران، ایران
2 گروه علوم و مهندسی آب، دانشکده کشاورزی، دانشگاه فسا، فسا، ایران.
چکیده
Environmental pollution from heavy metals, dyes, and emerging contaminants such as microplastics has prompted the exploration of low-cost, sustainable adsorbents. Biochar, derived from biomass pyrolysis, has emerged as a promising candidate due to its porous structure, surface functionality, and potential for chemical modification. This paper aims to review the current strategies employed in the synthesis and modification of biochar-based composites and assess their efficiency in environmental remediation applications. A comprehensive literature review was conducted, emphasizing recent developments in biochar modification techniques including metal impregnation, clay integration, hydrothermal processing, and mechanochemical treatments. Modified biochars showed substantial improvement in adsorption performance compared to their pristine forms. For heavy metals, Fe-impregnated biochar achieved Pb(II) removal efficiencies exceeding 95% with adsorption capacities up to 123.4 mg/g. MgO-doped biochar exhibited a methylene blue dye removal capacity of 216.7 mg/g. In microplastic remediation, Fe–Mn-modified biochar demonstrated an adsorption capacity of 34.29 mg/g and removal efficiency of 88% for polystyrene microplastics under optimized conditions (pH 7, 25°C). Ball-milled biochar composites achieved up to 3-fold increases in surface area and enhanced metal–carbon interactions, leading to higher adsorption via hydrophobic, electrostatic, and π–π interactions. Metal oxide-loaded biochars consistently outperformed pristine biochars, particularly in systems with electrostatic or ion-exchange dominant sorption mechanisms. Biochar-based composites present a versatile and effective platform for environmental remediation. Their performance depends strongly on synthesis parameters and functional modifications. Integration of metals, oxides, and structural tailoring can significantly enhance sorption capabilities, making them viable alternatives to conventional adsorbents.
کلیدواژهها
موضوعات
Abdoul Magid, A.S.I., Islam, M.S., Chen, Y., Weng, L., Li, J., Ma, J., Li, Y. (2021). Enhanced adsorption of polystyrene nanoplastics (PSNPs) onto oxidized corncob biochar with high pyrolysis temperature, Science Total Environment. 784, 147115, https:// doi.org/10.1016/j.scitotenv.2021.147115.
Alaghemandi, M. (2024). Sustainable Solutions Through Innovative Plastic Waste Recycling Technologies. Sustainability, 16, 10401. https://doi.org/10.3390/su162310401
Akhtar, M. S., Ali, S., & Zaman, W. (2024). Innovative Adsorbents for Pollutant Removal: Exploring the Latest Research and Applications. Molecules, 29(18), 4317. https://doi.org/10.3390/molecules29184317
Amiri, M. J., Bahrami, M. and Nekouee, N. (2023). Analysis of breakthrough curve performance using theoretical and empirical models: Hg2+ removal by bone char from synthetic and real water. Arabian Journal of Science Engineering. 48, 8737–8751. https://doi.org/10.1007/s13369-022-07432-x
Amiri, M.J., Bahrami, M. and Dehkhodaie, F. (2019). Optimization of Hg(II) adsorption on bio-apatite based materials using CCD-RSM design: characterization and mechanism studies. Journal of Water Health. 17 (4), 556-567.
Amiri, M.J., Eslamian, S., Arshadi, M. and Khozaei, M. (2015). Water recycling and community, in: S. Eslamian (Ed.), Urban water reuse handbook, CRC Press, Boca Raton, pp. 261–273.
Amiri, M.J., Roohi, R., Arshadi, M., Abbaspourrad, A. (2020). 2,4-D adsorption from agricultural subsurface drainage by canola stalk-derived activated carbon: insight into the adsorption kinetics models under batch and column conditions, Environmental Science Pollution Research, 27 (14), 16983–16997, https://doi.org/10.1007/s11356- 020-08211-7
Ashiq, A., Sarkar, B., Adassooriya, N., Walpita, J., Rajapaksha, A.U., Ok, Y.S. and Vithanage, M. (2019). Sorption process of municipal solid waste biochar-montmorillonite composite for ciprofloxacin removal in aqueous media, Chemosphere. 236, 124384, https://doi.org/10.1016/j.chemosphere.2019.124384.
FAO. (2021). Assessment of agricultural plastics and their sustainability: A call for action. FAO. doi: 10.4060/cb7856en
Bahrami, M.; Amiri, M.J.; Mahmoudi, M.R.; Zare, A. (2023). Statistical and Mathematical Modeling for Predicting Caffeine Removal from Aqueous Media by Rice Husk-Derived Activated Carbon. Sustainability, 15, 7366.
Bahrami, M.; Amiri, M.J.; Rajabi, S.; Mahmoudi, M.R. (2024). The removal of methylene blue from aqueous solutions by polyethylene microplastics: Modeling batch adsorption using random forest regression. Alex. Engineering Journal, 95, 101–113.
Beigzadeh, B., Bahrami, M., Amiri, M.J., and Mahmoudi, M.R. (2020). A new approach in adsorption modeling using random forest regression, Bayesian multiple linear regression, and multiple linear regression: 2, 4-D adsorption by a green adsorbent, Water Science Technology. 82 (8), 1586–1602, https://doi.org/10.2166/wst.2020.440.
Brennecke, D., Duarte, B., Paiva, F., Caçador, I., and Canning-Clode, J. (2016). Microplastics as vector for heavy metal contamination from the marine environment. Estuar Coast Shelf Sci, 178, 189–195. doi: 10.1016/j.ecss.2015.12.003
Chen, Z., Liu, X., Wei, W., Chen, H., and Ni, B. J. (2022). Removal of microplastics and nanoplastics from urban waters: Separation and degradation. Water Research, 221. doi: 10.1016/j.watres.2022.118820
Cheng, N., Wang, B., Wu, P., Lee, X., Xing, Y., Chen, M., et al. (2021a). Adsorption of emerging contaminants from water and wastewater by modified biochar: A review. Environmental Pollution 273. doi: 10.1016/j.envpol.2021.116448
Cheng, N., Wang, B., Wu, P., Lee, X., Xing, Y., Chen, M., et al. (2021b). Adsorption of emerging contaminants from water and wastewater by modified biochar: A review. Environmental Pollution 273. doi: 10.1016/j.envpol.2021.116448
Dong, M., He, L., Jiang, M., Zhu, Y., Wang, J., Gustave, W., et al. (2023). Biochar for the Removal of Emerging Pollutants from Aquatic Systems: A Review. International Journal of Environmental Research Public Health, 20. doi: 10.3390/ijerph20031679
Enfrin, M., Dumée, L. F., and Lee, J. (2019). Nano/microplastics in water and wastewater treatment processes – Origin, impact and potential solutions. Water Research, 161, 621–638. doi: 10.1016/j.watres.2019.06.049
Ganie, Z. A., Khandelwal, N., Tiwari, E., Singh, N., and Darbha, G. K. (2021). Biochar-facilitated remediation of nanoplastic contaminated water: Effect of pyrolysis temperature induced surface modifications. Journal of Hazard Materology, 417. doi: 10.1016/j.jhazmat.2021.126096
Ji, G., Xing, Y., You, T. (2024). Biochar as adsorbents for environmental microplastics and nanoplastics removal. Journal of Environmental Chemistry Engineering. 12, 113377. https://doi.org/10.1016/j.jece.2024.113377
Klotz, M.; Haupt, M.; Hellweg, S. (2023). Potentials and limits of mechanical plastic recycling. Journal of Indian Ecology. 27, 1043–1059.
Kumar, R., Verma, A., Rakib, M.R.J., Gupta, P.K., Sharma, P., Garg, A., Girard, P. and Aminabhavi, T.M. (2023). Adsorptive behavior of micro(nano)plastics through biochar: Co-existence, consequences, and challenges in contaminated ecosystems. Science of the Total Environment, 856. doi: 10.1016/j.scitotenv.2022.159097
Kumkum, P., & Kumar, S. (2024).A Review on Biochar as an Adsorbent for Pb(II) Removal from Water. Biomass, 4(2), 243-272. https://doi.org/10.3390/biomass4020012
Li, H., Dong, X., da Silva, E. B., de Oliveira, L. M., Chen, Y., and Ma, L. Q. (2017). Mechanisms of metal sorption by biochars: Biochar characteristics and modifications. Chemosphere, 178, 466–478. doi: 10.1016/j.chemosphere.2017.03.072
Li, J., Chen, X., Yu, S., Cui, M. (2023). Removal of pristine and aged microplastics from water by magnetic biochar: adsorption and magnetization, Science Total Environment, 875, 162647, https://doi.org/10.1016/j.scitotenv.2023.162647.
Liu, Z., Zhen, F., Zhang, Q., Qian, X., Li, W., Sun, Y., Zhang, L. and Qu, B. (2022). Nanoporous biochar with high specific surface area based on rice straw digestion residue for efficient adsorption of mercury ion from water, Bioresour. Technology. 359, 127471, https://doi.org/10.1016/j.biortech.2022.127471.
Mahmud, A.; Wasif, M.M.; Roy, H.; Mehnaz, F.; Ahmed, T.; Pervez, M.N.; Naddeo, V.; Islam, M.S. (2022). Aquatic Microplastic Pollution Control Strategies: Sustainable Degradation Techniques, Resource Recovery, and Recommendations for Bangladesh. Water, 14, 3968. https://doi.org/10.3390/w14233968
Majewska, M., & Hanaka, A. (2025). Biochar in the Bioremediation of Metal-Contaminated Soils. Agronomy, 15(2), 273. https://doi.org/10.3390/agronomy15020273
Masinga, T., Moyo, M., Pakade, V.E. (2022). Removal of hexavalent chromium by polyethyleneimine impregnated activated carbon: intra-particle diffusion, kinetics and isotherms, J. Mater. Res. Technol. 18, 1333, https://doi.org/10.1016/j.jmrt.2022.03.062.
Nazbakhsh, M., Nabavi, S. R., and Jafarian, S. (2025). Optimized Production of High-Performance Activated Biochar from Sugarcane Bagasse via Systematic Pyrolysis and Chemical Activation. Sustainability, 17(4), 1554. https://doi.org/10.3390/su17041554
Osman, A.I., Fawzy, S., Farghali, M., El-Azazy, M., Elgarahy, A. M., Fahim, R.A., Maksoud, M.I.A., Ajlan, A.A., Yousry, M., Saleem, Y., Rooney, D.W. (2022). Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review. Environmental Chemistry Letter, 20, 2385–2485. https://doi.org/10.1007/s10311-022-01424-x
Patra, B.R., Mukherjee, A., Nanda, S. and Dalai A. K. (2021). Biochar production, activation and adsorptive applications: a review. Environmental Chemistry Letter, 19, 2237–2259. https://doi.org/10.1007/s10311-020-01165-9
Peng, G., Xiang, M., Wang, W., Su, Z., Liu, H., Mao, Y., Chen, Y. and Zhang, P. (2022). Engineering 3D graphene-like carbon-assembled layered double oxide for efficient microplastic removal in a wide pH range, Journal of Hazard Mater, 433, 128672, https://doi.org/10.1016/j.jhazmat.2022.128672.
Prata, J. C., da Costa, J. P., Duarte, A. C., and Rocha-Santos, T. (2019). Methods for sampling and detection of microplastics in water and sediment: A critical review. TrAC Trends in Analytical Chemistry, 110, 150–159. doi: https://doi.org/10.1016/j.trac.2018.10.029
Qu, J., Wang, Y., Tian, X. and Jiang, Z., Deng, F., Tao, Y., Jiang, Q., Wang, L. and Zhang, Y. (2021). KOH-activated porous biochar with high specific surface area for adsorptive removal of chromium (VI) and naphthalene from water: affecting factors, mechanisms and reusability exploration, Journal Hazard Mater. 401, 123292, https://doi.org/10.1016/j.jhazmat.2020.123292.
Razeghi, N., Hamidian, A.H., Wu, C., Zhang, Y. and Yang, M. (2021). Scientific studies on microplastics pollution in Iran: An in-depth review of the published articles. Mar. Pollution Bulletin. 162, 111901. https://doi.org/10.1016/j.marpolbul.2020.111901
Seow, Y.X., Tan, Y.H., Mubarak, N.M., Kansedo J., Khalid, M. Ibrahim, M.L. and Ghasemi, M. (2022). A review on biochar production from different biomass wastes by recent carbonization technologies and its sustainable applications, Journal of Environmental Chemistry Engineering, 10, 107017, https://doi.org/10.1016/j.jece.2021.107017.
Shrivastava, A., Abhishek, K., Gupta, A.K., Jain, H., Kumari, M., Patel, M. and Sharma, P. (2024). Removal of micro- and nano-plastics from aqueous matrices using modified biochar – A review of synthesis, applications, interaction, and regeneration. Journal of Hazard Mater, 16, 100518. https://doi.org/10.1016/j.hazadv.2024.100518
Siipola, V., Pflugmacher, S., Romar, H., Wendling, L., and Koukkari, P. (2020). Low-cost biochar adsorbents for water purification including microplastics removal. Applied Sciences (Switzerland) 10. doi: 10.3390/app10030788
Singh, N., Khandelwal, N., Ganie, Z.A., Tiwari, E., Darbha, G.K. (2021). Eco-friendly magnetic biochar: An effective trap for nanoplastics of varying surface functionality and size in the aqueous environment, Chemistry Engineering Journal, 418, 129405, https://doi.org/10.1016/j.cej.2021.129405.
Sun, Y., Shaheen, S. M., Ali, E. F., Abdelrahman, H., Sarkar, B., Song, H., et al. (2022). Enhancing microplastics biodegradation during composting using livestock manure biochar. Environmental Pollution, 306. doi: 10.1016/j.envpol.2022.119339
Titone, V.; Botta, L.; La Mantia, F.P. (2024). Mechanical Recycling of New and Challenging Polymer Systems: A Brief Overview. Macromol. Mater. Eng, 2400275.
Tiwari, E., Singh, N., Khandelwal, N., Monikh, F.A., Darbha, G.K. (2020). Application of Zn/Al layered double hydroxides for the removal of nano-scale plastic debris from aqueous systems. Journal of Hazard Mater. 397, 122769 https://doi.org/10.1016/j. jhazmat.2020.122769.
Tong, M., He, L., Rong, H., Li, M. and Kim, H. (2020a). Transport behaviors of plastic particles in saturated quartz sand without and with biochar/Fe3O4-biochar amendment, Water Research. 115284, https://doi.org/10.1016/j.watres.2019.115284.
Tong, M., Li, T., Li, M., He, L., and Ma, Z. (2020b). Cotransport and deposition of biochar with different sized-plastic particles in saturated porous media. Science Total Environment, 713, 136387. doi: 10.1016/j.scitotenv.2019.136387
Wang, J., Sun, C., Huang, Q. X., Chi, Y., and Yan, J. H. (2021a). Adsorption and thermal degradation of microplastics from aqueous solutions by Mg/Zn modified magnetic biochars. Journal of Hazard Mater 419. doi: 10.1016/j.jhazmat.2021.126486
Wang, T., Zhang, D., Fang, K., Zhu, W., Peng, Q., and Xie, Z. (2021b). Enhanced nitrate removal by physical activation and Mg/Al layered double hydroxide modified biochar derived from wood waste: Adsorption characteristics and mechanisms. Journal of Environmental Chemistry Engineering, 9. doi: 10.1016/j.jece.2021.105184
Wang, R.P., Zhang, S.Y., Chen, H.L., He, Z.X., Cao, G.L., Wang, K., Li, F.H., Ren, N.Q., Xing, D.F., Ho, S.-H. (2023).Enhancing biochar-based nonradical persulfate activation using data-driven techniques. Environmental Science Technology. 57 (9), 4050–4059. https://doi.org/10.1021/acs.est.2c07073
Wu, J., Yang, C., Zhao, H., Shi, J., Liu, Z., Li, C., Song, F. (2023). Efficient removal of microplastics from aqueous solution by a novel magnetic biochar: performance, mechanism, and reusability, Environmental Science Pollution Research, 30, 26914, https://doi.org/10.1007/s11356-022-24130-1.
Yao, S., Ni, N., Li, X.A., Wang, N., Bian, Y.R., Jiang, X., Song, Y., Bolan, N.S., Zhang, Q.Z., Tsang, D.C.W. (2023). Interactions between white and black carbon in water: a case study of concurrent aging of microplastics and biochar. Water Research, 238 https://doi. org/10.101 6/j.watres.2023.120006.
Zhang, L., Zhang, Q., Wang, Y., Cui, X., Liu, Y., Ruan, R., Wu, X., Cao, L., Zhao, L. and Zheng, H. (2023). Preparation and application of metal-modified biochar in the purification of micro-polystyrene polluted aqueous environment. Journal of Environmental Management. 347, 119158. https://doi.org/10.1016/j.jenvman.2023.119158
Zhu, N., Yan, Q., He, Wang, X.Y., Wei, Z.A., Liang, D., Yue, H.F., Yun, Y., Li, G.K., Sang, N. (2022). Insights into the removal of polystyrene nanoplastics using the contaminated corncob-derived mesoporous biochar from mining area, Journal of Hazard Mater, 433, 128756, https://doi.org/10.1016/j.jhazmat.2022.128756.
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