Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance
Full Length Article|Updated:2026-01-06
|
Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance
Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance
中国化学工程学报(英文版)2022年51卷第11期 页码:61-74
Affiliations:
1. College of Environmental Science and Engineering, Guilin University of Technology,Guilin,China,541006
2. Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology,Guilin,China,541006
3. College of Material Science and Engineering, Guilin University of Technology,Guilin,China,541006
Author bio:
Funds:
DOI:
中图分类号:
纸质出版:2022
Accepted:
Scan QR Code
Yinchang Pei, Shengpeng Mo, Qinglin Xie, 等. Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance[J]. 中国化学工程学报(英文版), 2022,51(11):61-74.
and Ni
Yinchang Pei, Shengpeng Mo, Qinglin Xie, 等. Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance[J]. 中国化学工程学报(英文版), 2022,51(11):61-74.DOI:
and NiDOI:
Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd2+ and Ni2+ adsorption performance
Zeolite X was synthesized by a two-step hydrothermal method using natural stellerite zeolite as the silicon seed
and its adsorption performance for Cd
2+
and Ni
2+
ions was experimentally and comprehensively investigated. The effects of pH
zeolite X dosage
contact time
and temperature on adsorption performance for Cd
2+
and Ni
2+
ions over were studied. The adsorption process was endothermic and spontaneous
and followed the pseudo-second-order kinetic and the Langmuir isotherm models. The maximum adsorption capacitiesfor Cd
2+
and Ni
2+
ions at 298 K were 173.553 and 75.897 mg·g
-1
respectively. Ion exchange and precipitation were the principal mechanisms for the removal of Cd
2+
ions from aqueous solutions by zeolite X
followed by electrostatic adsorption. Ion exchange was the principal mechanisms for the removal of Ni
2+
ions from aqueous solutions by zeolite X
followed by electrostatic adsorption and precipitation. The zeolite X converted from stellerite zeolite has a low
n
(Si/Al)
abundant hydroxyl groups
and high crystallinity and purity
imparting a good adsorption performance fo
r Cd
2+
and Ni
2+
ions. This study suggests that zeolite X converted from stellerite zeolite could be a useful environmentally-friendly and effective tool for the removal of Cd
2+
and Ni
2+
ions from aqueous solutions.
关键词
Keywords
references
The trial reading is over, you can activate your VIP account to continue reading.