硫酸溶液中硒铋的电化学沉积行为
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摘要
采用电沉积从硫酸水溶液中回收硒和铋。利用线性扫描伏安法(LSV)分析对比了两者的还原行为,并利用恒电位法进行沉积行为研究,采用SEM、EDS和XRD对产物进行了分析。结果表明:硒和铋共沉积行为是准可逆的,反应物扩散是反应的控制环节,传质过程对回收过程有重要影响。当搅拌速率700r/min时,硒、铋的回收率可分别达到84.23%、62.66%;加入球形添加剂2,2′-联吡啶和亚铁氰化钾,可得到球形的硒和铋颗粒。
Electrodeposition was used to recover the valuable metals, selenium and bismuth from the sulfuric acid solution. Linear sweep voltammetry(LSV) was employed to determine the reduction behavior of selenium and bismuth,while the potentiostatic deposition was used to study the electrodeposition behavior by using SEM, EDS and XRD for product analysis. The results show that the co-deposition of selenium and bismuth is quasi-reversible reaction, in which the reactant diffusion is the rate-limiting step. The mass transportation possesses an important impact towards the recovery performance. The maximum recovery of Se and Bi reach 84.23%, 62.66%, respectively, at the stirring speed of700 r/min. Besides, the addition of 2, 2'-bipyridine and potassium ferrocyanide can lead to the spherical particles of selenium and bismuth product.
Electrodeposition was used to recover the valuable metals, selenium and bismuth from the sulfuric acid solution. Linear sweep voltammetry(LSV) was employed to determine the reduction behavior of selenium and bismuth,while the potentiostatic deposition was used to study the electrodeposition behavior by using SEM, EDS and XRD for product analysis. The results show that the co-deposition of selenium and bismuth is quasi-reversible reaction, in which the reactant diffusion is the rate-limiting step. The mass transportation possesses an important impact towards the recovery performance. The maximum recovery of Se and Bi reach 84.23%, 62.66%, respectively, at the stirring speed of700 r/min. Besides, the addition of 2, 2'-bipyridine and potassium ferrocyanide can lead to the spherical particles of selenium and bismuth product.
引文
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[14]SU Jun-ling,LIN Xiao,ZHENG Shi-li,NING Rui,LOUWen-bo,JIN Wei.Mass transport-enhanced electrodeposition for the efficient recovery of copper and selenium from sulfuric acid solution[J].Separation&Purification Technology,2017,182:160-165.
[15]CHAI Yong-zhen,CHANG Yu,SONG Rui-qin,LIU Wei,LIYun-hui,PAN Li-hua.Synthesis and Characterization of Dimethyl 6,6'-Dimethyl-[2,2′-bipyridine]-4,4′-dicarboxylate[J].Chinese Journal of Applied Chemistry,2017,34(2):146-150.
[16]LIU Ren-zhi,ZHANG Bing-jian,MAO Li-hui.Effect of potassium ferrocyanide on sodium chloride crystallization[J].Journal of Jinan University(Natural Science&Medicine Edition),2015,36(6):448-452.
[2]JAGMINAS A,VALSIUNAS I,VERONESE G P,JUSKENAS R,RUTAVICIUS A.Alumina templateassisted growth of bismuth selenide nanowire arrays[J].Journal of Crystal Growth,2008,310(2):428-433.
[3]HAM S,JEON S,PARK M,CHOI S,PAENG K J,MYUNGN,RAJESHWAR K.Electrodeposition and stripping analysis of bismuth selenide thin films using combined electrochemical quartz crystal microgravimetry and stripping voltammetry[J].Journal of Electroanalytical Chemistry,2010,638(2):195-203.
[4]TORANE A P,LOKHANDE C D,PATIL P S,BHOSALE CH.Preparation and characterization of electrodeposited Bi2Se3 thin films[J].Materials Chemistry&Physics,1998,55(3):219-222.
[5]LI Ji-yu,JIANG Liang-xing,WANG Bo,LIU Fang-yang,YANG Jia,TANG Ding,LAI Yang-qing,LI Jie.Electrodeposition and characterization of copper bismuth selenide semiconductor thin films[J].Electrochimica Acta,2013,87(167):153-157.
[6]KULSI C,KARGUPTA K,GANGULY S,BANERJEE D.Enhanced thermoelectric performance of n-type bismuth selenide doped with nickel[J].Current Applied Physics,2017,17(12):1609-1615.
[7]PATIL N S,SARGAR A M,MANE S R,BHOSALE P N.Effect of Sb doping on thermoelectric properties of chemically deposited bismuth selenide films[J].Materials Chemistry&Physics,2009,115(1):47-51.
[8]SUBRAMANIAN S,PADIYAN D P.Effect of structural,electrical and optical properties of electrodeposited bismuth selenide thin films in polyaniline aqueous medium[J].Materials Chemistry&Physics,2008,107(2/3):392-398.
[9]MICHEL S,STEIN N,SCHNEIDER M,BOULANGER C,LECUIRE J M.Optimization of chemical and electrochemical parameters for the preparation of n-type Bi2Te2.7Se0.3 thin films by electrodeposition[J].Journal of Applied Electrochemistry,2003,33(1):23-27.
[10]LAI Yang-qing,LIU Fang-yang,LI Jie,ZHANG Zhi-an,LIU Ye-xiang.Nucleation and growth of selenium electrodeposition onto tin oxide electrode[J].Journal of Electroanalytical Chemistry,2010,639(1):187-192.
[11]HERRERO E,CLIMENT V,FELIU J M.On the different adsorption behavior of bismuth,sulfur,selenium and tellurium on a Pt(775)stepped surface[J].Electrochemistry Communications,2000,2(9):636-640.
[12]RAHMAN M M,SALLEH M A M,RASHID U,AHSAN A,HOSSAIN M M,RA C S.Production of slow release crystal fertilizer from wastewaters through struvite crystallizationA review[J].Arabian Journal of Chemistry,2014,7(1):139-155.
[13]MOORE D T,SAI H,TAN K W,SMILQIES D M,ZHANGW,SNAITH H J,WIESNER U,ESTROFF L A.Crystallization kinetics of organic-inorganic trihalide perovskites and the role of the lead anion in crystal growth[J].Journal of the American Chemical Society,2015,137(6):2350-2358.
[14]SU Jun-ling,LIN Xiao,ZHENG Shi-li,NING Rui,LOUWen-bo,JIN Wei.Mass transport-enhanced electrodeposition for the efficient recovery of copper and selenium from sulfuric acid solution[J].Separation&Purification Technology,2017,182:160-165.
[15]CHAI Yong-zhen,CHANG Yu,SONG Rui-qin,LIU Wei,LIYun-hui,PAN Li-hua.Synthesis and Characterization of Dimethyl 6,6'-Dimethyl-[2,2′-bipyridine]-4,4′-dicarboxylate[J].Chinese Journal of Applied Chemistry,2017,34(2):146-150.
[16]LIU Ren-zhi,ZHANG Bing-jian,MAO Li-hui.Effect of potassium ferrocyanide on sodium chloride crystallization[J].Journal of Jinan University(Natural Science&Medicine Edition),2015,36(6):448-452.