Easily synthesized mesoporous aluminum phosphate for the enhanced adsorption performance of U(VI) from aqueous solution

doi:10.1016/j.jhazmat.2022.128675

	Easily synthesized mesoporous aluminum phosphate for the enhanced adsorption performance of U(VI) from aqueous solution
	Wang, De 1,2; Chen, Haiying 3; Zhang, Jianfeng 1,2; Li, Jiaxing 1,2,4
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2022-06-15
卷号	432
关键词	Mesoporous AlPO4 Uranium-selectivity Recyclability Dynamic adsorption
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2022.128675
通讯作者	Li, Jiaxing(lijx@ipp.ac.cn)
英文摘要	High-yield selective adsorbents and suitable modification methods are both significant for the efficient treatment of U-contaminated wastewater. In this work, a rich-mesoporous aluminum phosphate adsorbent (APO-10) was synthesized by simply increasing the mass of reactants under a fixed solvent volume. After increasing the mass of reactants ten times, APO-10 has the added defect level, the increased specific surface area, and mesoporous structure, and the increased number and enhanced adsorption ability of adsorption active sites (phosphorus oxygen groups) on the surface, resulting in an enhanced adsorption performance of U(VI) in various environmental conditions. Its ultrahigh adsorption capacity calculated by the Langmuir model can reach 826.44 mg g(-1) at pH = 5.5 and T = 298 K. Its crystal structure did not change after adsorption and remained at 584.40 mg g(-1) after 6 cycles. Additionally, APO-10 shows an excellent uranium-selectivity over 68% from a mixed aqueous solution and has excellent applicability in the acidic and alkaline environment based on dynamic adsorption and desorption column experiments. This study not only provides a high-yield efficient selective adsorbent (APO-10) with excellent anti-radiation structure stability for the treatment of radioactive contamination but also provides a feasible modification method by simply increasing the mass of reactants.
资助项目	National Key Research and Development Project[2020YFC1806602] ; National Natural Science Foundation of China[21876178] ; Priority Academic Program Development of Jiangsu Higher Education Institutions
WOS关键词	HIGHLY EFFICIENT ; ORGANIC FRAMEWORK ; DEFECT CENTERS ; URANIUM ; REMOVAL ; POLYMERIZATION ; EXTRACTION ; PRECURSOR ; CHANNELS ; ALPO4-5
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000782124800003
资助机构	National Key Research and Development Project ; National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131448]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Jiaxing
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Minist Ecol & Environm Peoples Republ China, Nucl & Radiat Safety Ctr, Beijing 100082, Peoples R China 4.Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Wang, De,Chen, Haiying,Zhang, Jianfeng,et al. Easily synthesized mesoporous aluminum phosphate for the enhanced adsorption performance of U(VI) from aqueous solution[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,432.
APA	Wang, De,Chen, Haiying,Zhang, Jianfeng,&Li, Jiaxing.(2022).Easily synthesized mesoporous aluminum phosphate for the enhanced adsorption performance of U(VI) from aqueous solution.JOURNAL OF HAZARDOUS MATERIALS,432.
MLA	Wang, De,et al."Easily synthesized mesoporous aluminum phosphate for the enhanced adsorption performance of U(VI) from aqueous solution".JOURNAL OF HAZARDOUS MATERIALS 432(2022).