Rapid removal of methylene blue and nickel ions and adsorption/desorption mechanism based on geopolymer adsorbent

doi:10.1016/j.colcom.2021.100551

	Rapid removal of methylene blue and nickel ions and adsorption/desorption mechanism based on geopolymer adsorbent
	Jin, Haize 1,2; Zhang, Youyou 1; Wang, Qikun 3,4; Chang, Qibing 4; Li, Cuixia1,2
	2021-11
发表期刊	COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
ISSN	2215-0382
卷号	45
摘要	Ongoing researches about adsorption removal of heavy metal ions and dyes are targeted to improve adsorption efficiency and recycle to solve environmental problems. Geopolymer as an adsorbent for wastewater treatment exhibits a good application potential. Here, a rapid removal strategy for methylene blue (MB) and nickel ions based on metakaolin-based geopolymer (MG) is provided. The adjustment of pH allows the MG to expose more negative charge adsorption sites, resulting in rapid removal of MB and Ni2+. The adsorption data fitted well by the pseudo-second-order model and Langmuir model, indicating the chemisorption of MG for MB and Ni2+. The decrease of pH of wash solution is conducive to the desorption of Ni2+. However, the desorption of MB-loading MG proved to be very difficult. This study provides a universal reference and possibility for rapid removal of cationic dyes and heavy metal ions under relatively mild conditions.
关键词	Geopolymer Adsorption Desorption Dyes Heavy metal ions
DOI	10.1016/j.colcom.2021.100551
收录类别	SCIE
语种	英语
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Coatings & Films
WOS记录号	WOS:000721375800004
出版者	ELSEVIER
来源库	WOS
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150112
专题	材料科学与工程学院
通讯作者	Jin, Haize; Li, Cuixia
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, 287 Langongping Rd, Lanzhou, Gansu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, 287 Langongping Rd, Lanzhou, Gansu, Peoples R China; 3.Harbin Inst Technol, Sch Mat Sci & Engn, Inst Adv Ceram, Harbin 150001, Peoples R China; 4.Jingdezhen Ceram Univ, Sch Mat Sci & Engn, Jingdezhen 333403, Peoples R China
第一作者单位	材料科学与工程学院; 省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	材料科学与工程学院; 省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Jin, Haize,Zhang, Youyou,Wang, Qikun,et al. Rapid removal of methylene blue and nickel ions and adsorption/desorption mechanism based on geopolymer adsorbent[J]. COLLOID AND INTERFACE SCIENCE COMMUNICATIONS,2021,45.
APA	Jin, Haize,Zhang, Youyou,Wang, Qikun,Chang, Qibing,&Li, Cuixia.(2021).Rapid removal of methylene blue and nickel ions and adsorption/desorption mechanism based on geopolymer adsorbent.COLLOID AND INTERFACE SCIENCE COMMUNICATIONS,45.
MLA	Jin, Haize,et al."Rapid removal of methylene blue and nickel ions and adsorption/desorption mechanism based on geopolymer adsorbent".COLLOID AND INTERFACE SCIENCE COMMUNICATIONS 45(2021).