国产精品视频一区二区三区四,亚洲av美洲av综合av,99国内精品久久久久久久,欧美电影一区二区三区电影

產(chǎn)品推薦:氣相|液相|光譜|質(zhì)譜|電化學(xué)|元素分析|水分測(cè)定儀|樣品前處理|試驗(yàn)機(jī)|培養(yǎng)箱


化工儀器網(wǎng)>技術(shù)中心>儀器文獻(xiàn)>正文

歡迎聯(lián)系我

有什么可以幫您? 在線咨詢

測(cè)量應(yīng)用案例-20200305

來(lái)源:美國(guó)布魯克海文儀器公司   2020年03月23日 08:48  

文獻(xiàn)名: Highly selective recovery of Au(III) from wastewater by thioctic acid modified Zr-MOF: Experiment and DFT calculation

 

作者Chen Wanga,b, Guo Lind, Jiling Zhaoa,b, Shixing Wanga,b, Libo Zhanga,b, Yunhao Xia,b, Xiteng Lia,b, Ying Yingc 

a    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan 650093, PR China

b    Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, PR China

c    Faculty of Science, Kunming University of Science and Technology, Kunming 650500, PR China

d    School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, Hubei 430081, PR China

 

摘要:A novel adsorbent (UiO-66-TA) was presented by modifying metal-organic framework composites with thioctic acid. UiO-66-TA were characterized by fourier transform infrared (FT-IR), field emission scanning electron microscopy (FESEM), thermogravimetric (TG), Brunner-Emment-Teller (BET) measurement and X-ray photoelectron spectroscopy (XPS), which indicating that it had excellent morphology and specific surface area. The adsorption performances of UiO-66-TA for Au(III) were studied. The results showed that UiO-66-TA had a strong adsorption capacity under acidic conditions and the optimal pH was 2.0. Isotherm and kinetic adsorption were also conducted and found that the experimental values correspond to Langmuir model and pseudo-second-order isotherm model, indicating that the mechanism is mainly chemical adsorption on a uniform surface. Wastewater experiment showed that UiO-66-TA can be used for highly selective recovery Au(III) in actual life. The regeneration and thermodynamic experiments indicated that UiO-66-TA can be reused and were a spontaneous endothermic process. XPS analysis and the zeta potential proved that the main adsorption mechanisms were ion exchange and chelation. DFT calculation found that there are two ways to combine Au with S on UiO-66-TA and their distances are 2.38?Å and 2.39?Å, indicating that the gold and sulfur play a major role in chelation. In summary, UiO-66-TA was a hopeful adsorbent and could be used to collect gold ions from wastewater in a sustainability perspective.

免責(zé)聲明

  • 凡本網(wǎng)注明“來(lái)源:化工儀器網(wǎng)”的所有作品,均為浙江興旺寶明通網(wǎng)絡(luò)有限公司-化工儀器網(wǎng)合法擁有版權(quán)或有權(quán)使用的作品,未經(jīng)本網(wǎng)授權(quán)不得轉(zhuǎn)載、摘編或利用其它方式使用上述作品。已經(jīng)本網(wǎng)授權(quán)使用作品的,應(yīng)在授權(quán)范圍內(nèi)使用,并注明“來(lái)源:化工儀器網(wǎng)”。違反上述聲明者,本網(wǎng)將追究其相關(guān)法律責(zé)任。
  • 本網(wǎng)轉(zhuǎn)載并注明自其他來(lái)源(非化工儀器網(wǎng))的作品,目的在于傳遞更多信息,并不代表本網(wǎng)贊同其觀點(diǎn)和對(duì)其真實(shí)性負(fù)責(zé),不承擔(dān)此類作品侵權(quán)行為的直接責(zé)任及連帶責(zé)任。其他媒體、網(wǎng)站或個(gè)人從本網(wǎng)轉(zhuǎn)載時(shí),必須保留本網(wǎng)注明的作品第一來(lái)源,并自負(fù)版權(quán)等法律責(zé)任。
  • 如涉及作品內(nèi)容、版權(quán)等問(wèn)題,請(qǐng)?jiān)谧髌钒l(fā)表之日起一周內(nèi)與本網(wǎng)聯(lián)系,否則視為放棄相關(guān)權(quán)利。
企業(yè)未開通此功能
詳詢客服 : 0571-87858618
普定县| 海伦市| 淅川县| 阜康市| 沛县| 黎城县| 宝清县| 台州市| 石家庄市| 民勤县| 温州市| 昭平县| 曲周县| 昌都县| 武强县| 延津县| 河池市| 弥勒县| 留坝县| 永靖县| 志丹县| 城市| 桦南县| 尤溪县| 鄂伦春自治旗| 潞城市| 卢龙县| 乌兰县| 灵台县| 鹤山市| 木兰县| 陈巴尔虎旗| 杭锦旗| 贺兰县| 冷水江市| 扬中市| 江孜县| 平陆县| 康定县| 桃园市| 芦溪县|