蒸汽活化竹基生物炭协同去除水溶液中的铜和四环素。
Synergistic removal of copper and tetracycline from aqueous solution by steam-activated bamboo-derived biochar.
机构信息
College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, People's Republic of China.
College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, People's Republic of China.
出版信息
J Hazard Mater. 2020 Feb 15;384:121470. doi: 10.1016/j.jhazmat.2019.121470. Epub 2019 Oct 14.
Steam-activated biochar (SBC) was prepared and showed excellent performance for synergistic removal of Cu and tetracycline (TC). The adsorption capacity of SBC and mutual effect of TC and Cu were investigated via single and binary system and the adsorption isotherm. The adsorption capacity of TC was significantly enhanced when it coexisted with Cu. Likewise, increased amounts of Cu were adsorbed in the presence of TC. The presence of NaCl exerted a negative influence on the adsorption of Cu, while the inhibitory effect of salinity on TC was neutralized by bridge enhancement in the binary system. Bridge enhancement and site competition were involved in the synergistic removal of TC and Cu. Considering the stable application in simulated and real water samples, SBC showed great potential for synergistic removal of antibiotics and heavy metals.
蒸汽活化生物炭（SBC）被制备出来，并在协同去除铜和四环素（TC）方面表现出优异的性能。通过单体系和双体系以及吸附等温线研究了 SBC 的吸附容量和 TC 与 Cu 的相互作用。当 TC 共存时，TC 的吸附容量显著提高。同样，在 TC 存在的情况下，吸附了更多的 Cu。NaCl 的存在对 Cu 的吸附产生了负面影响，而盐度对 TC 的抑制作用在双体系中被桥增强所中和。桥增强和位点竞争参与了 TC 和 Cu 的协同去除。考虑到在模拟和实际水样中的稳定应用，SBC 在协同去除抗生素和重金属方面具有很大的潜力。
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