Synthesis of submicrometer-sized Cu O with morphological evolution in a one-pot reaction

Chu, Xiao Zhong; Cheng, Zhi; Xu, Ji Ming; Zhao, Yi; Zhang, Wei Guang; Lee, Chang Ha

doi:10.1016/j.matlet.2015.07.002

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…The Cu2O/ZnO sample before calcination had the peaks at 36.6, 42.5, 61.4, and 73.8 o corresponding to (1 1 1), (2 0 0), (2 2 0) and 3 1 1lattice planes of Cu2O crystal (JCPDS05-0667). [15] The peak at 2θ = 14.5 o was associated with the (2 0 0) lattice plane of zinc hydroxide carbonate (Zn5(CO3)2(OH)6, ZHC) (JCPDS 19-1458) [16] and the peak at 33.3 o was assigned to coper hydroxide carbonate (Cu2(OH)2CO3, CHC). [17] For bare ZnO, the main peaks of ZnO were identified at 2θ = 31.7, 34.4, 36.2, 47.5, 56.6, 62.8 and 67.9 o revealed the crystalline structure of hexagonal wurtzite phase.…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Preparation of flower‐like Cu₂O/ZnO for removal of dyes from aqueous medium

Dat

Hung

Tuấn

2020

Vietnam Journal of Chemistry

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Flower‐like Cu2O/ZnO was prepared by hydrothermal method with the reducing agent of glucose for removal of dyes in aqueous medium. As‐prepared samples were characterized by FE‐SEM, XRD, and TEM. Flower‐like Cu2O/ZnO could both photodegrade Tartrazine (TA) under UV and visible lights with the removal efficiencies of 85.3 and 96.1 %, respectively, and adsorbed TA with the removal efficiency of 77.5 %. The effects of adsorbent dosage, dye concentration, and pH solution on adsorption of dyes were investigated. The kinetic adsorption of TA on flower‐like Cu2O/ZnO was studied by pseudo‐first‐order and pseudo‐second‐order models. In addition, the performance of as‐prepared material was evaluated by cyclic test and adsorption of other dyes such as methylene blue, Janus green B and Congo red.

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Section: Adsorption Experimentsmentioning

confidence: 99%