QingLin He

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Name: 贺庆林

Organization: Northeast Normal University , China

Department:

Title: (PhD)

Chemicals
References

Synthesis and properties of layered double hydroxides intercalated with cinnamic acid series organic UV ray absorbents

Co-reporter:W. Sun, Q. He, L. Lu, H. Liu

Materials Chemistry and Physics 2008 Volume 107(2–3) pp:261-265

Publication Date(Web):15 February 2008

DOI:10.1016/j.matchemphys.2007.07.018

Organic ultraviolet (UV) ray absorbents such as cinnamic acid (CA), 3,4-dimethoxycinnamic acid (DMOCA) and p-hydroxycinnamic acid (PHCA) were intercalated into Zn2Al layered double hydroxides (Zn2Al-LDHs) by co-precipitation reaction. The organic–inorganic nanocomposites, Zn2Al-LDH/CA, Zn2Al-LDH/DMOCA and Zn2Al-LDH/PHCA were obtained. XRD patterns showed that the basal spacing of Zn2Al-LDH/CA, Zn2Al-LDH/DMOCA and Zn2Al-LDH/PHCA was 1.80, 1.91 and 1.76 nm, respectively. The UV-VIS transmittance spectra of thin films of the samples indicated that all Zn2Al-LDH/organic UV absorbent nanocomposites showed excellent UV ray absorption ability. The catalytic activity studies showed their catalytic activity for the air oxidation of castor oil greatly decreased when the organic UV ray absorbents were intercalated into the interlayer spaces of the Zn2Al-LDHs.

Synthesis and properties of cinnamic acid series organic UV ray absorbents–interleaved layered double hydroxides

Co-reporter:Weiling Sun, Qinglin He, Yong Luo

Materials Letters 2007 Volume 61(8–9) pp:1881-1884

Publication Date(Web):April 2007

DOI:10.1016/j.matlet.2006.07.148

Organic ultraviolet (UV) ray absorbents, cinnamic acid (CA) and p-methoxycinnamic acid (PMOCA) were intercalated into Zn2Al layered double hydroxides (Zn2Al-LDHs) by co-precipitation reaction. The organic–inorganic nanocomposites, Zn2Al-LDH/CA and Zn2Al-LDH/PMOCA were obtained. The samples showed excellent UV ray absorption ability and their catalytic activity for the air oxidation of castor oil greatly decreased when the organic UV ray absorbents were intercalated in the layers of the Zn2Al-LDHs. The studies suggested that Zn2Al-LDH/organic UV absorbent nanocomposites might be used as safe sunscreen materials.