Article
Environmental Sciences
Dayang Yu, Siqi Zeng, Yifan Wu, Yuan Li, Hailong Tian, Tian Xie, Yan Yu
Summary: With the increasing organic emissions in production and human life, controlling organic pollution has become an urgent issue in the environmental field. In this study, hydrothermal carbonization rice husk-loaded Al-modified biochar (Al-BC) was synthesized and its adsorption capacity for organic pollutant IBU was investigated under different pH conditions. The results showed that Al-BC had better adsorption capacity than BC, especially at pH = 7. The adsorption material prepared in this study could provide a reference for organic pollution control in water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Xirui Kang, Na Geng, Yaping Li, Xu Li, Jinpeng Yu, Shuo Gao, Hui Wang, Hong Pan, Quangang Yang, Yuping Zhuge, Yanhong Lou
Summary: Cd and Zn contamination in water is a common issue that poses a threat to water supply, human health, and food production. MnFeB, a modified absorbent biochar, exhibits enhanced adsorption capacity for Cd2+ and Zn2+ ions, making it a promising material for the treatment of Cd and Zn-polluted water.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Huagen Liang, Chenxi Zhu, Shan Ji, Palanisamy Kannan, Fu Chen
Summary: The large-scale use of antibiotics is causing serious water pollution problems, emphasizing the need for new technologies to remove antibiotics from water. In this study, a low-cost and reusable magnetic biochar material was synthesized, demonstrating its potential for rapid and efficient removal of antibiotics from aqueous solutions.
Review
Environmental Sciences
P. Senthil Kumar, R. Gayathri, B. Senthil Rathi
Summary: Water resources are essential for living beings but are gradually diminishing due to factors like population growth and industrial activities. Heavy metals, common pollutants in water systems, can be effectively removed using adsorption techniques, with agricultural wastes serving as low-cost adsorbents in the process.
Review
Engineering, Environmental
Lichun Dai, Qian Lu, Haiqin Zhou, Fei Shen, Zhengang Liu, Wenkun Zhu, Huagang Huang
Summary: Biochar has gained attention in water pollution control due to its tunable physico-chemical properties, especially the oxygenated functional groups (OFGs) which act as key active sites for pollutant removal through adsorption and redox reactions. Various strategies for tuning OFGs on biochar have been explored, such as in-situ and ex-situ oxidation, as well as grafting carboxyl groups via reactions like cycloaddition/acylation, leading to enhanced performance in pollutant removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Pengyang Bian, Bei Gao, Junhao Zhu, Huimin Yang, Yue Li, Ermao Ding, Yixuan Liu, Yaxing Liu, Shichen Wang, Weibo Shen
Summary: This study investigated the effect of chitosan combined with nicotinamide-modified eupatorium adenophorum biochar (CEBC) on adsorbing Sb3+ from water. The results showed that CEBC had a higher maximum adsorption capacity for Sb3+ compared to the original biochar (EBC). The adsorption of Sb3+ by CEBC was dominated by monolayer chemisorption and involved various mechanisms such as electrostatic interactions, pore filling, and functional group complexation. Density functional theory (DFT) calculations confirmed the significance of chelation between -NH2 and Sb3+ in the adsorption process. CEBC also exhibited good anti-interference ability and reproducibility, making it a viable Sb3+ adsorbent.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Environmental Sciences
Aman Kumar, Ekta Singh, Rahul Mishra, Sunil Kumar
Summary: Biochar with favorable structural and surface properties has been widely used for diverse environmental applications due to its cost-effective and eco-friendly nature. It plays a critical role in eliminating pollutants in soil, water, and air, with ongoing research focusing on its various functions and potential improvements for targeted applications. Different technologies for biochar production and post treatments, as well as future research directions and gaps in current studies, have also been discussed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Lijun Guo, Liangqiong Peng, Jiheng Li, Wenhua Zhang, Bi Shi
Summary: The N-doped biochar prepared by pyrolyzing lignin, AL-N/BC, exhibited superefficient performance for recycling uranium (U) from nuclear wastewater. The optimal AL-N/BC-700 showed higher adsorption capacity and faster kinetics compared to other reported adsorbents, and it also displayed excellent adsorption-desorption capability. The high applicability of AL-N/BC-700 was confirmed under various conditions. The adsorption mechanism revealed the significant role of graphitic N for U(VI) adsorption. This work presents an applicable approach for addressing the energy crisis and enriches the method of synthesizing N-doped materials for U(VI) adsorption.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Mohamed A. Habila, Mohamed S. Moshab, Ahmed Mohamed El-Toni, Zeid A. ALOthman, Ahmed Y. Badjah Hadj Ahmed
Summary: Thermal treatment was used to convert palm stalk waste into magnetic carbon sheets, which showed excellent dye removal performance. The samples prepared at 250 degrees C and 400 degrees C exhibited the best adsorption capacity, with equilibrium reached within 120 to 180 minutes. The second-order kinetic model and Freundlich model were suitable for describing the adsorption process.
Review
Biotechnology & Applied Microbiology
Qingshuang Zhao, Ting Xu, Xueping Song, Shuangxi Nie, Sun-Eun Choi, Chuanling Si
Summary: This paper reviews the preparation of magnetic biochar and its application in wastewater treatment, emphasizing the effectiveness of magnetic biochar in adsorbing pollutants and its advantages in solving water treatment challenges.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Review
Environmental Sciences
Max D. Gillingham, Rachel L. Gomes, Rebecca Ferrari, Helen M. West
Summary: Recent research on magnetisation of biochar has opened new opportunities in environmental remediation by simplifying its separation process and addressing waste management and nitrogen pollution. However, further studies are needed to understand the impacts of biochar on soil chemistry and biology to protect and support soil ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yunpeng Zhang, Bingjie Zhang, Jingyang Yu, Meng Yuan, Jiawen Ji, Huizhe Lu, Yongqiang Ma, Yunlong Guo
Summary: Pesticide residues have caused serious damage to the environment and social security. The efficient functional biochar prepared here is able to quickly and effectively remove sulfonylurea herbicides from water, with over 95% adsorption rate.
Review
Environmental Sciences
Chenxi Zhao, Bing Wang, Benny K. G. Theng, Pan Wu, Fang Liu, Shengsen Wang, Xinqing Lee, Miao Chen, Ling Li, Xueyang Zhang
Summary: NMOBCs are effective and novel adsorbents that combine the positive qualities of biochar and nano-metal oxides, enhancing their dispersity, stability, and adsorption capacity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Lu Liu, Yingjie Dai
Summary: This study compared the removal of metolachlor by biochars prepared from walnut shells, cow dung, and corn cobs, with walnut shell biochar showing the highest removal rate. The adsorption of metolachlor by biochars may be influenced by electron donor-acceptor interactions and pore filling. These findings could help further investigations into the adsorption mechanism and process optimization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Macdonald Ogorm Mafiana, Ian Robert Dodkins, Chimezie Gabriel Dirisu, Shi-Weng Li
Summary: Field-scale experiments showed that biochar is effective in sequestering lead and zinc from contaminated mine water. Non-amended samples exhibited better adsorption of lead and zinc. The optimal replacement interval for biochar and activated carbon applications is recommended at 1104 hours (46 days) and 72 hours (3 days) for lead and zinc sorption, respectively.
WATER AIR AND SOIL POLLUTION
(2021)