数字农科院2.0

Effective strategy for alleviation of oil contamination in marine via the superhydrophobic biochar: Performances, mechanisms and environmental recalcitrance

文献类型： 外文期刊

作者： Xin Pan;Shaoping Kuang;Xiao Wang

作者机构：

关键词： Environmental recalcitrance;Layered double hydroxides;Oil spill remediation;Superhydrophobic wettability

期刊名称： Journal of Cleaner Production

ISSN： 0959-6526

年卷期： 2024 年 462 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： The performance of layered double hydroxides (LDH)-biochar composite on alleviating oil spill pollution is poorly understood. A superhydrophobic biochar (NCY) was synthesized from the pristine wood chips biochar (WCB) after the surface deposition of NiCo-LDH (NCB) and hydrophobic modification with stearate. The oil removal potential of the designed biochars was investigated via the diesel oil/crude oil adsorption experiments and the environmental recalcitrance evaluation. The compared characterization results revealed that NiCo-LDH was successfully deposited onto biochar matrix via the electrostatic attraction and pore filling effect, which facilitated a special flower-like hierarchical architecture rough surface for biochar and hinder the multi-layer stacking of LDH. Benefit from the constructed hierarchical architecture, the occupancy of oxygen-containing functional groups and hydrophobic modification of stearate, the water contact angle of NCY (156°) was remarkably larger than NCB (117°) and WCB (50.1°), which exhibit a superhydrophobic. The maximum diesel oil sorption capacities of biochars increased from 3.28 g/g in WCB to 5.64 g/g in NCB and 11.6 g/g in NCY, as well as the maximum crude oil sorption capacities of biochars showed a similar trend (WCB: 4.64 g/g, NCB: 8.74 g/g, NCY: 18.6 g/g). Accordingly, NCY showed higher oil adsorption capacity than NCB and WCB mainly due to the enhanced hydrophobic forces and the π-π electron donor-acceptor interaction resulted from lower amount of O-containing functional groups and superhydrophobic surface wettability. Furthermore, the application of LDH remarkably improved the environmental recalcitrance of biochar (resist to the chemical oxidation and thermal decomposition in marine) due to the coating of NiCo-LDH could enhance the bulk stability of biochar and increase the liable carbon content in biochar. This study proved that the application of NiCo-LDH and stearate could be an effective approach for improve the oil pollution remediation capacity and the environmental recalcitrance of biochar.

分类号：

  • 相关文献

[1]Isolation of Chlorogenic Acid from Flaveria bidentis (L.) Kuntze by CCC and Synthesis of Chlorogenic Acid-Intercalated Layered Double Hydroxide. Wei, Yun,Gao, Yali,Xie, Qianqian,Zhang, Guoliang,Fu, Weidong.

[2]Preparation of the 12-Molybdophosphoric Acid-Layered Double Hydroxides Nanocomposite Hybrid and its Electrocatalytic Reduction of Halate Ions. Li, Yali,Yang, Xiurong,Li, Yali,Wang, Yingping,Wang, Yingping.

[3]Enhancing lettuce yield via Cu/Fe-layered double hydroxide nanoparticles spraying. Hongyang Wu,Xiaoyang Wan,Jiefei Niu,Huimin Xu,Yu Zhang,Xian Xue,Yang Li,Qiang Li,Tao Lu,Hongjun Yu,Weijie Jiang. 2023

[4]Synthesis of biochar-ZnAl-layered double hydroxide composite for effective heavy metal adsorption: Exploring mechanisms and structural transformations. Rashida Hameed,Adeel Abbas,Jiabao Lou,Wajid Ali Khattak,Beenish Roha,Babar Iqbal,Guanlin Li,Qianru Zhang,Xin Zhao. 2024

[5]Machine learning assisted analysis: inorganic catalyzed hydrothermal carbonization to enhance biomass carbon stability. 晏婷,,张哲,,张哲睿,,王文赞,,张明震,,朱志平. 2025

[6]Reduced cadmium uptake of wheat plant using Mn-and Fe-layered double hydroxides for the remediation of polluted weakly alkaline dryland soils. Zheng, Shen,Lu, Tao,Hu, Jiwen,Wang, Ziwei,Huang, Hengliang,Zhang, Yujing,Qiu, Guohong. 2025

[7]Surface modification of layered double hydroxides nanocomposites with dopamine for pH-responsive delivery of tebuconazole to improve antifungal activity and biological safety. Yao, Junwei,Wang, Qian,Shi, Qingshan,Wang, Chunxin,Liu, Jingxia,Huang, Ping,Yu, Manli,Xie, Xiaobao. 2025

作者其他论文 更多>>