title: Superior adsorption performance for triphenylmethane dyes on 3D architectures assembled by ZnO nanosheets as thin as ∼1.5nm.
abstract: The 3-dimensional hierarchical ZnO flower-like architectures have been synthesized in a Zn(Ac)2·2H2O-Na2SeO3-KBH4-pyridine solvothermal system at 100°C for 24h. The flower-like architecture is assembled from ZnO nanosheets with a thickness of ∼1.5nm, and the flower-like architecture specific surface area is 132m(2)/g. When the ZnO flower-like architecture is used as the adsorbent for acid fuschin (AF), malachite green (MG), basic fuchsin (BF), congo red (CR) and acid red (AR) in water, the adsorption capacities for AF, MG, BF, CR and AR are 7154.9, 2587.0, 1377.9, 85.0 and 38.0mg/g, respectively. Evidently, the as-obtained ZnO flower-like architectures show excellent adsorption performances for triphenylmethane dyes, and the adsorption capacity of 7154.9mg/g for AF is the highest of all adsorbents for dyes. The adsorption mechanism can be attributed to the electrostatic attraction and the formation of ion-association complex between triphenylmethane dyes and ZnO hierarchical flower-like architectures.
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Cuijin
authors: C
authors: Pei
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Guoping
authors: G
authors: Han
authors: National Coal Inspection Centre, Shaanxi Institute of Energy Quality Supervision and Inspection, Xi'an, Shaanxi 710054, China.
authors: Yan
authors: Y
authors: Zhao
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Hua
authors: H
authors: Zhao
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Bin
authors: B
authors: Liu
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Lijuan
authors: L
authors: Cheng
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China. Electronic address: hqyang@snnu.edu.cn.
authors: Heqing
authors: H
authors: Yang
authors: Shaanxi Engineering Laboratory for Advanced Energy Technology and Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
authors: Shengzhong
authors: S
authors: Liu
keywords: Adsorption capacity; Triphenylmethane dyes; Ultrathin nanosheets; ZnO flower-like architectures