磁性生物炭材料的研究进展
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摘要
生物炭以其良好的理化性质,作为吸附剂被广泛应用于水污染处理。将磁性物质负载到生物炭上制备磁性生物炭,赋予生物炭磁响应特性,能有效解决吸附剂回收难、损失大等问题。磁性生物炭具有含碳量高、比表面积大、可磁分离等优良特性,已成为近年来的研究热点。对磁性生物炭的制备方法、应用性能等方面进行了综述,并提出磁性生物炭的未来研究方向,以期为磁性生物炭材料的深化研究和应用提供参考。
As an adsorbent, biochar has been widely used in water pollution treatment because of its good physical and chemical properties. The magnetic biochar was prepared by combining biochar with magnetic material, and biochar was endowed with the characteristics of magnetic response, which could effectively solve the problems of difficult recovery and easy loss of adsorbent. Magnetic biochar with high carbon content, large specific surface area, magnetic separation and other excellent properties, has become a hot research topic in recent years. The preparation methods and application properties of magnetic biochar were reviewed. The future research directions of magnetic biochar were put forward in order to provide reference for further research and application of magnetic biochar materials.
As an adsorbent, biochar has been widely used in water pollution treatment because of its good physical and chemical properties. The magnetic biochar was prepared by combining biochar with magnetic material, and biochar was endowed with the characteristics of magnetic response, which could effectively solve the problems of difficult recovery and easy loss of adsorbent. Magnetic biochar with high carbon content, large specific surface area, magnetic separation and other excellent properties, has become a hot research topic in recent years. The preparation methods and application properties of magnetic biochar were reviewed. The future research directions of magnetic biochar were put forward in order to provide reference for further research and application of magnetic biochar materials.
引文
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[2]Ahmad M,Rajapaksha A U,Lim J E,et al.Biochar as a sorbent for contaminant management in soil and water:a review.[J].Chemosphere,2014,99(3):19-33.
[3]Huggins T M,Haeger A,Biffinger J C,et al.Granular biochar compared with activated carbon for wastewater treatment and resource recovery[J].Water Research,2016,94(1):225-232.
[4]吕宏虹,宫艳艳,唐景春等.生物炭及其复合材料的制备与应用研究进展[J].农业环境科学学报,2015,34(8):1429-1440.
[5]Di N F,Erto A,Lancia A.Desorption of arsenic from exhaust activated carbons used for water purification.[J].Journal of Hazardous Materials,2013,260(18):451-458.
[6]黄兆琴,张乃文,刘霞.稻壳生物炭的制备及性质表征[J].广州化工,2018,46(12):40-43.
[7]刘娟丽,曹天鹏,李佳.秸秆生物质炭的活化制备及其对亚甲基蓝的吸附研究[J].水处理技术,2015,41(09):53-56+60.
[8]黄燕宁,王晓,张宏杰等.污泥生物炭的研究进展[J].功能材料,2017,48(09):9024-9029.
[9]唐圣贤,王静雯,刘欣等.一种新型生物炭的制备及其在含镉、铅、铜污水处理中的应用[J].当代化工研究,2018(01):90-93.
[10]Zhuang L,Li Q,Chen J,et al.Carbothermal preparation of porous carbon-encapsulated iron composite for the removal of trace hexavalent chromium[J].Chemical Engineering Journal,2014,253(7):24-33.
[11]吴明山,马建锋,杨淑敏等.磁性生物炭复合材料研究进展[J].功能材料,2016,47(7):7028-7033.
[12]吴简,刘朋虎,叶菁等.磁性生物炭吸附废水中重金属的研究进展[J].亚热带资源与环境学报,2018,13(01):58-65.
[13]吴明山.竹基磁性生物炭复合材料的制备与表征[D].安徽农业大学,2016.
[14]Zhou L,Ma J,He Z,et al.Fabrication of magnetic carbon composites from peanut shells and its application as a heterogeneous Fenton catalyst in removal of methylene blue[J].Applied Surface Science,2015,324:490-498.
[15]郑景华,王宇,王聪等.磁性生物炭对As(Ⅲ)的吸附行为研究[J].离子交换与吸附,2018,34(02):116-126.
[16]Essandoh M,Wolgemuth D,Pittman C U,et al.Adsorption of metribuzin from aqueous solution using magnetic and nonmagnetic sustainable low-cost biochar adsorbents[J].Environmental Science&Pollution Research International,2016,24(5):1-14.
[17]马文天,郭会琴,刘宇等.油茶籽壳磁性碳微球的制备及其对PFOS的吸附性能[J].环境工程,2017,35(11):114-119.
[18]Wang J,Zhang Q,Shao X,et al.Properties of magnetic carbon nanomaterials and application in removal organic dyes[J].Chemosphere,2018,207:377.
[19]杜文琪,曹玮,周航等.磁性生物炭对重金属污染废水处理条件优化及机理[J].环境科学学报,2018,38(02):492-500.
[20]万霞,梅昌艮,何俐臻等.磁性生物炭的制备、表征及对磷的吸附特性[J].安全与环境学报,2017,17(03):1069-1075.
[21]Devi P,Saroha A K.Synthesis of the magnetic biochar composites for use as an adsorbent for the removal of pentachlorophenol from the effluent[J].Bioresource Tec hnology,2014,169(5):525-531.
[22]Reguyal F,Sarmah A K,Gao W.Synthesis of magnetic biochar from pine sawdust via oxidative hydrolysis of FeCl2for the removal sulfamethoxazole from aqueous solution.[J].Journal of Hazardous Materials,2017,321:868-878.
[23]Thines K R,Abdullah E C,Mubarak N M,et al.Insitu polymerization of magnetic biochar-polypyrrole composite:A novel application in supercapacitor[J].Biomass&Bioenergy,2017,98:95-111.