Wang Junya, Yang Ying, Jia Lijuan, Yang Na, Guan Qingqing, Huang Liang, Umar Ahmad, Wang Qiang, Ning Ping
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China.
School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, P. R. China.
J Nanosci Nanotechnol. 2018 Apr 1;18(4):2956-2964. doi: 10.1166/jnn.2018.14381.
In this paper, the influence of charge compensating anions of Layered double hydroxides (LDHs) in the LDH-NS/GO nanohybrid for carbon dioxide capture was systematically investigated. The four kinds of different charge compensating anion intercalated LDH were exfoliated and the LDH and Graphene oxide (GO) nanohybrids were synthesized by "exfoliation-self-assembly" method. In this contribution, the CO2 capture capacity of LDH was improved by introducing of GO. And the calcination and adsorption conditions were tested, which proved that the LDH-NS/GO nanohybrids can be used in a wide temperature range for carbon dioxide capture, and the appropriate calcination temperature is 400 °C. Furthermore, the LDH-NS/GO nanohybrids also have a good multiple adsorption/desorption stability, which is vital for practical application.
本文系统研究了层状双氢氧化物（LDHs）的电荷补偿阴离子对LDH-NS/GO纳米杂化物捕集二氧化碳的影响。将四种不同电荷补偿阴离子插层的LDH进行剥离，并通过“剥离-自组装”方法合成了LDH与氧化石墨烯（GO）的纳米杂化物。在本研究中，通过引入GO提高了LDH的二氧化碳捕集能力。并对煅烧和吸附条件进行了测试，结果表明LDH-NS/GO纳米杂化物可在较宽温度范围内用于二氧化碳捕集，适宜的煅烧温度为400℃。此外，LDH-NS/GO纳米杂化物还具有良好的多次吸附/解吸稳定性，这对实际应用至关重要。
